FSB:DDR ratio?

I don't really understand the FSB:DDR ratio? I have a MS-6758 LSR with a P4 2.6HT . I have 1 gb of Crucial TEch DDR Ram. I downclocked my FSB back to normal because of an instable system in windows ( freeze all the time).
Can you help me finding the best settings ( FSB, DDR CLocks, AGP VOLTAGE ect..)
Thanks very much !!!!

You don't really 'lock' it to 400. You set it to 400 which puts it in 1:1 synch with the FSB at 200. I think what you want to do is set the DRAM clock at 333, so as it steps up with the FSB it won't reach 400 until your CPU is at a higher speed.
If you get this working, please report your current benchmark and your new benchmark when not running 1:1. I'm cursios to see the net effect of increasing your CPU speed while sacrificing memory speed.

Similar Messages

  • MOVED: MSI P31 Neo and FSB/DDR ratio

    This topic has been moved to Overclockers & Modding Corner.
    https://forum-en.msi.com/index.php?topic=116635.0

    Hello Aacko,
    the P31 Neo is a budget board that is not really designed for overclocking (notice the red PCB).  The P31 chipset supports DDR2-667 and DDR2-800 memory modules.  With a FSB-200-MHZ-CPU installed, 1:1.66 and 1:2 are exactly the ratios you need to get your RAM to 667 MHz or 800 MHz.
    Quote
    Can I do something about this or should I swap P31 Neo to some P35-chipset mobo that would allow more flexible FSB/DDR ratio settings?
    If you really want to overclock, you should go for a P35 Platinum or P35 Neo2-FR/FIR board.

  • Setting FSB:DDR ratio?

    How does one go about setting the FSB:DDR ratio on the Neo-2 (865)?
    I'm trying to overclock my P4 2.4C (with HyperX PC3500 RAM), but I'm not able to get any higher than about 2.7 GHz because the DDR frequency gets too high, even if I lock it at 400 MHz in the BIOS.
    Is there a setting I'm missing?  Does the board automatically set the ratio if the system bus is set high enough?
    Help would be appreciated, thanks.

    You don't really 'lock' it to 400. You set it to 400 which puts it in 1:1 synch with the FSB at 200. I think what you want to do is set the DRAM clock at 333, so as it steps up with the FSB it won't reach 400 until your CPU is at a higher speed.
    If you get this working, please report your current benchmark and your new benchmark when not running 1:1. I'm cursios to see the net effect of increasing your CPU speed while sacrificing memory speed.

  • MSI P31 Neo and FSB/DDR ratio

    I purchased P31 Neo -mb and E2160 processor.
    I've red that this processor could easily hit 3.0 Ghz with 333 mhz fsb. The problem is that I can't find a setting from P31 Neo's bios that would allow to unlock FSB/DDR ratio. There is only Auto, 1:1.66 and 1:2 setting for FSB/DDR ratio. When I raise the FSB the DDR speed quickly raises over 800 Mhz and the system doesn't post. 2160 Mhz is the top that i've managed to overclock E2160 because my DDR2-chips can't handle the higher FSB speeds.
    Can I do something about this or should I swap P31 Neo to some P35-chipset mobo that would allow more flexible FSB/DDR ratio settings?

    Hello Aacko,
    the P31 Neo is a budget board that is not really designed for overclocking (notice the red PCB).  The P31 chipset supports DDR2-667 and DDR2-800 memory modules.  With a FSB-200-MHZ-CPU installed, 1:1.66 and 1:2 are exactly the ratios you need to get your RAM to 667 MHz or 800 MHz.
    Quote
    Can I do something about this or should I swap P31 Neo to some P35-chipset mobo that would allow more flexible FSB/DDR ratio settings?
    If you really want to overclock, you should go for a P35 Platinum or P35 Neo2-FR/FIR board.

  • Fsb/dram ratio on p31 neo

    hi,
    i have p31 neo board. in bios the only option for fsb/dram ratio is 1.1.66 and 1.2. with this option overclock is almost imposible (fsb <240)
    a bios update will resolve problem or i can't do anithing.
    thanks
    msi p31 neo
    pentium dual core 2160
    2*1 gb ddr2 pc 6400
    wd 3200aaks
    gainward 8600gt
    corsair vx450
    case asus

    Actually, the system should start even with DDR2-1066 memory installed, but it should recognize it as DDR2-800. You will not have additional memory dividers when inserting DDR2-1066 RAM.  You even be able to increase memory speed beyond DDR2-800 MHz by increasing FSB Clock Speed.  However, there is no guarantee that you can successfully make your RAM operate its rated speed.
    If you are really planning to overclock your system, you may be better of looking for a board that is more up to this task (P35 Neo2/P35 Platinum would be a much better choice in this case.)

  • P31 Neo-F - I don't have 1:1 FSB\memory ratio

    MSI P31 Neo-F (Bios 1.2) Rev 1.0
    Corsair 6400XMS2 2 x 1Gb (Dimm1 & Dimm3)
    Core2Duo 4300
    Core2Duo 6300
    The BIOS sees both sticks of RAM. I have tried slots 2 & 4 in desperation as well.
    I can not get 1:1 memory ratio.
    With the 4300 I get AUTO\1:1.66\1:2. Set to Auto it runs at 1:1.6
    With the 6300 I get AUTO\1:1.25\1:1.5 (if my memory servers me right). Set to Auto it runs at 1:1.25
    I have cleared the BIOS many times. What am I doing wrong?

    Quote
    The Corsair memory is DDR2-800 isn't it?
    Quote
    Corsair 6400XMS2 2 x 1Gb (Dimm1 & Dimm3)
    Yes, and there should be no problem making your RAM operate @800 Mhz by choosing the proper FSB/DRAM ratio in BIOS.
    Quote
    My MSI P35 Plat runs with the same memory at 1:1 fine with the same processor. So are you saying the P31 can not do the same?
    I know, this matter is complicated, but I will try to explain and to give you at least a partial answer.  P31 and P35 chipsets do not use the same memory controllers.  Have a look at the Intel Datasheets for both memory controllers:
    P31 / 82P31 Memory Controller Hub (MCH)  --> DATASHEET
    Page 21:
    Quote
    Supports Front Side Bus (FSB) at the following Frequency Ranges: - 800/1066 (200/266MHz)
    and Page 25:
    Quote
    Differential Host clock of 200/266 MHz (HCLKP/HCLKN). Supports transfer rates of
    800/1066 MT/s.
    Compare to:
    P35 / 82P35 Memory Controller Hub (MCH)  --> DATASHEET
    Page 27:
    Quote
    Supports Front Side Bus (FSB) at 800/1066/1333 MT/s (200/266/333 MHz)
    and Page 31:
    Quote
    Differential Host clock of 200/266/333 MHz (HCLKP/HCLKN). Supports transfer
    rates of 800/1066/1333 MT/s.
    As you can see, according to Intel specs, the P31 chipset itseld does not offer native support for CPUs that operate @333 (1333) MHz FSB Clock Speed.  That is why, from a chipset point of view, the number and variety of possible dividers is less compared to the P35 chipset.  Looking at the differential between FSB and Memory Clock speed you can also see that 1:1.25/1.1.5 (E4300) and 1:1.66/1:2 (E6300) are the native chipset ratios to match DDR2-667 and DDR2-800 RAM with FSB/200 MHz and FSB/266 MHz processors.
    Of course, in practice chipset limitations can be exceeded by BIOS programming to a certain degree. That is why P31 boards actually do support FSB/333 MHz CPUs, but the support is not native. Have a look >>here<< as well.
    The only situation in which you actually need the 1:1 memory divider is overclocking, but since this a budget board not meant to be put to excessive OC use, BIOS implementation of memory dividers that go beyond Intel specs is limited. After all, it is a matter of price/performance.  The MSI P31 Neo-F matches the Intel specs and exceeds them when it comes to FSB/333 MHz processors, there is no real mistake here. I can find nothing in the Intel specs nor in the MSI Product information that says there has to be a 1:1 ratio implemented at all costs.
    There is a chance, of course, that MSI will implement more memory dividers in a future BIOS release.  Try contacting MSI, maybe they can give you a more definate answer this one:
    http://ocss.msi.com.tw/
    Quote
    The Intel chipset is capable of offering 1:1
    Capable: yes, native support: no.
    Quote
    The issue is MSIs implementation of it = BIOS.
    You are most likely right about BIOS implementation in general, but I don't see a reason to call it an issue at this point. 

  • 1:1 FSB:Memory ratio on 865pe fisr (250+Mhz)

    Does anyone have memory that is capable of running 250mhz and over? I was interested in knowing whether the bios changes your ratio to 5:4 when you select 250mhz FSB and over like mine does. I don't know why it changes the ratio when the ram is capable of running at 250+ on 2.7V easy. Nothing is holding me back as I have tested all relevant components at required voltages so it is strictly a bios/mobo issue as I see it. Do any of the 5 bioses for the 865pe allow for higher than 250mhz 1:1 ratio? Could it be the brand of memory I have? It is detected as pc3200 memory which is actually a good thing cause it 'tricks' the mobo into thinking it is compatible ram. But even if the ram is not on the list of 'compatible' ram modules, this should not cause such a problem as that. My theory is that this MSI board has set parameters coded into the bios that govern the way the mobo behaves IRRESPECTIVE of the capabilites of the components in the system. If your mem modules, cpu, etc. fall under a certain category defined by MSI, the mobo will change them back to a default or 'safer' setting if you increased it beyond what the deem is acceptable. How do I know this? Well if you use an utility that allows you to change parameters in windows, such as MSI's very own corecenter you will see that the computer will run at a speed that it would not run at if set in the bios (assuming that your components are capable of running at increased speeds). If anyone has done extensive testings and can tell me which of the 5 current bioses are the least restrictive on user settings, can they please let me know?
    My sys specs are:
    MSI NEO2 865PE FISR
    P4 2.4C 800 FSB
    2x512MB ADATA PC4000
    ATI Radeon 9700
    WD 40GB 8MB Cache
    IBM Deskstar 120GXP 40GB
    Lite-On 16x DVD rom
    Enermax 550W PSU
    As of now I am in hardcore diagnostic OC mode. I am taking the time to verify the limits of each of my components separately. Only one component is stressed at any one time and the others are all run as below spec as possible. Lets see what turns up. Let me know what bios works best for you guys.

    U had any problems with u'r ADATA DDR 500?
    Where did u pick it up??
    see my other post for my specs
    http://www.msi.com.tw/program/e_service/forum/index.php?threadid=27815&boardid=10&styleid=1&sid=f383feb6d3080c2e532cb89a2201c498

  • Question on FSB, CPU ratio and VCore

    Hi:
    I have been reading several postings on overclocking CPU. As far I can tell, people recommended increasing the FSB freq. in the BIOS until it cannot boot any longer.
    I have KT3 Ultra, Athlon XP 1800+, and DDR 333MHz.
     ?( How does changing the FSB freq. affects DDR freq? Is it 1:2 ratio? For example, if FSB = 133 MHz, then DDR is 266 MHz. If so, is FSB limited by DDR rated freq?
     ?( Does changing the FSB actually changes the clock signal feeds into the CPU?
     ?( Does changing the FSB only affect CPU? Does it affects the PCI bus?
     ?( What is CPU ratio? Is it an internal clock multiplier to the CPU?
     ?( How does CPU VCore affect the overclock?

    http://www.msi.com.tw/program/service/forum/index.php?threadid=7501&boardid=13

  • FSB:RAM ratio on MSI KM4AM-V...CHANGE???

    Hello.
    I was wondering if anyone knows how to change the FBS:RAM ratio on this board.
    It is currently 1:1 but i would like to change it to 10:9 if possible or anything close to that...
    Thanks for any help.
    roddy

    You're probably right, but what could we do without these kind of problems? I mean, if everything would be fine and the computers work out all the time, what could we do? I think that our life without these little problems would be a messy for us! Boring it's the perfect word to express the way our lives would be.
    So you could try changing the jumpers on the board overclocking the FSB of the processor because on the SETUP you cant see anything ralated to change FSB or memory frequences, so just do  it, but by your own risk
    Bye, and thanks for remebering me the meaning of life.

  • FSB\DRAM Ratio

    What should the ratio ore something stay on my mb::
    MSI K7N2G-LISR
    Tbred 2000 (266fsb)
    2x512 ddr TWINMOS (2100)

    Quote
    Originally posted by |-Raider-|
    What should the ratio ore something stay on my mb::
    MSI K7N2G-LISR
    Tbred 2000 (266fsb)
    2x512 ddr TWINMOS (2100)
    a 1 to 1 ratio should work just fine.

  • FSB/DRAM ratio ignored ?

    Hi all I am getting really weird problems with my DRAM ratio to FSB. When i set it to 1:1.00 sometimes it takes it and sometimes its defaults itself to 1.2 even though its set on 1.00 Its really random when it does it as well like when i set my fsb to 385 it does it and when its at 395 it does it but at 390 it wont (most of the time it has done it before) It just seems really intermittent and weird to me... any help would be appreciated as this is my one block from getting slightly higher clock speeds from my e6600
    My setup:
    MSI P45-Neo3-fr
    MCH Voltage = 1.40V
    ICH = 1.60V
    FSB Termination = 1.45V
    E6600 3.51ghz 395x9 @ 1.505 vcore
    Spread Spectrum Disabled
    C1E Disabled
    EIST Disabled
    2x1gb OCZ Gold PC6400 5-5-5-15 790mhz @ 1.908V
    if you need any more info just let me know and i'll see what i can do right now it is rock solid 12 + hours of Orthos max load temp of 52 w zalman CNPS-9700 you see why i think it has more to give :P
    Thanks in advance! I know someone will be able to give me some advice!

    I meant the button to modify forum posts....:
    Modify
    Quote
    AH HA!! Modify to modify my post! gotcha! lol sorry ... i'm slow (i added this line with modify see i'm learning... lol)
    Quote
    It just seems really intermittent and weird to me...
    Well, it is weird.  That should not happen.  If this is a BIOS Problem, it can only be fixed with a new BIOS.
    In any case, one question:
    What position are your OC Jumpers in?
    Quote
    E6600 3.51ghz 395x9 @ 1.505 vcore
    That is quite a lot of voltage for that clock speed.  Have you checked if you can get the system to get through POST with less than that? (~1.4V maybe?)

  • What's FSB Memory ratio? What should i choose? My mobo is in my sig.

    It has some choices like 1:1, 1:1.66, or 1:2 etc.? Any help will be appreciated.

    Also, AMD's DO not have an FSB.
    It's a common mistake, that even BIOS engineers make.
    AMD's have a reference clock where everything is devided from.
    But it's not a Front-size-Bus, AMD has a Hyper-Transport bus, but the clock for that is a multiple of the reference clock.
    However, this HT-clock doesn't have to be the same as the CPU-ref-clock...it can have several different clocks

  • MOVED: fsb/dram ratio on p31 neo

    This topic has been moved to Overclockers & Modding Corner.
    https://forum-en.msi.com/index.php?topic=115046.0

    Actually, the system should start even with DDR2-1066 memory installed, but it should recognize it as DDR2-800. You will not have additional memory dividers when inserting DDR2-1066 RAM.  You even be able to increase memory speed beyond DDR2-800 MHz by increasing FSB Clock Speed.  However, there is no guarantee that you can successfully make your RAM operate its rated speed.
    If you are really planning to overclock your system, you may be better of looking for a board that is more up to this task (P35 Neo2/P35 Platinum would be a much better choice in this case.)

  • 1:1 FSB:DDR clocks

    i was just wondering if there was a noticeable performance difference with 1:1 ratio? i am currently running a P7N Diamond with a QX9650 @ 333x12 and 4x2GB G.Skill DDR2 1000(500x2) with a 2:3 ratio, and wondering if i should bother trying to get a 1:1 ratio. system seems stable but i am always looking for more speed 

    ok, i see where a 1:1 ratio would be good in keepin a low latancy for benchmarks. but in real world application faster speed is the best route my 2:3 rayion is un noticable,, means i xhoud be just fine with my stability. thanks for your help guys check my system out here http://valid.x86-secret.com/show_oc.php?id=329680 i have had some good stability afer getting the G.Skill ddr2 1000ram and 1.1b1 bios. all i did was up the multiplyer and cpu volts. keep in mind i dont qit get 24/7 uptime like i used too with my laptop. somrtime my internet explorer gets all f'ed up and requirers a system restart. but my bit torrent client is just fine through this whole mess so i dont know what is the major deal here. 
    but thanks for your input...

  • NEO Boards Unofficial FAQ rev 4/05/2004 - two lights on "P" series

    Hi all,
    I'll start maintaining this Unofficial FAQ for the NEO boards. The contents of this FAQ are compiled from this forum, user's posted problems, usage issues, compatibility issues reported on the net etc. However, MSI does not responsible for the validity of this FAQ. Please take note.
    1. BIOS
    Q: I flashed the BIOS and caused my motherboard dead. Can I RMA the board?
    A: This does not happen easily. Please be sure you follow the BIOS flashing instruction and wait for the BIOS flashing process to be fully completed before you restart the PC.
    If this problem is caused by the recent bios 1.3 for the Intel875 ( MS6758 ) chipset, then he could ask for RMA from MSI Branch offices for Free.
    If not caused by the 1.3 BIOS, they can still go through the normal RMA process. Please check with MSI branches.
    Q: What is the MSI statement for the bad BIOS flash?
    YES. This is the statement :Quote
    When you update the bios to v1.4 using the latest flash utility, it will show "Erasing Done and then Programming Done". But actually the process has not been finished yet, you will need to wait about 30 seconds and then the message of "Flash Complete..." is showing up, this will complete the flash process.
    By doing this, end user will assume when it display "Programming Done" message, it has complete the flash process which is wrong. We need to wait until the "Flash Complete..." message has displayed on the screen in order for completing the flash process.
    By any chance we can remove the message of "Programming Done" and only prompt for "Flash Complete..." so customer will not turn off the system or reboot the system when they see "Programming Done" message pop on the screen?
    The new version ADSFI708.EXE has fixed this issue. When you finish the BIOS , it will show the "Verifying the ROM data now" message before it showed up the "Flash Complete".
    In short, use ADSFI708.EXE to flash the BIOS.
    [/color]
    Q: Where can I get beta BIOS?
    MSI do not support beta BIOS. Use at your own risk. Under special condition such as hardware incompatibility issues and a beta BIOS is a feasible resolution, please post in the forum and let the mods arrange for you.
    Latest BIOS:
    Released:
    875P Neo : 1.9
    865PE Neo2 : 1.9
    865PE Neo2-PS : 3.3 New![/B]
    beta BIOS:
    875P Neo : 1.9B6 link1 [Thanks to FlyTSI for hosting]
    History: NO INFO PROVIDED FOR 1.9B6
    865PE Neo2 : 2.01B link [thanks to FlyTSI]
    History:Support Extreme OSB logo. Display L3 cache. Support Prescott cpu & update microcode. Modify Prescott ratio programming.
    DO NOT APPROACH THE MODS FOR BETA BIOS! WE DO NOT DISTRIBUTE BETA BIOS!!
    Q: What is the best BIOS setting for my board?
    A: The optimal BIOS setting is different for each system. It's recommended to read more about the BIOS settings, from the board's manual, and some good guides like this : link.
    2. Overclocking
    Q:I cannot overclock my system. Can MSI update the BIOS so I can overclock?
    A: This board can overclock, but overclocking depends on the peripherals that you are using like memory, CPU, heatsink etc.
    Q: Which board has Dynamic Overclocking Technology?
    A: Currently only 865PE Neo2-FIS2R
    Q: How to disable dynamic overclocking?
    A:Yes, you can disable Dynamic clocking directly in the bios setup.
    3. CoreCell Technology
    Q: which product has CoreCell technology built-in?
    A: 875P Neo (MS-6758), 865GE Neo2 (MS-6728) & 865PE Neo2 (MS-6728)
    Q: Can I assume that boards with CoreCell chip to have D.O.T ?
    NO
    Q: Where are the locations of temperature sensors?
    CPU - taken directly from CPU pin (same as AMD thermal pin.
    System - RT2 (near winbond I/O) same for 875/865 series boards.
    4. RAM
    Q: I have this RAM xxxx but it does not work with my board. Can MSI update the BIOS to fix this?
    A: We would suggest you to use the MSI recommended memory for this part as there are a lot of memory brands out there we can't guarantee that all will work with the MB. Please go to the Product Info page, click "Test Report" and choose "Memory Modules".
    For example, 875P : Here and select Memory Modules.  
    Q: My RAM performance is slow, the benchmark software such as PC Mark, Sisoft etc results are below par compared to other brands. WHY?
    A: This issue has been identified. New BIOS update has fixed this problem. Please update to the latest BIOS.
    Q: Is there any workaround?
    A: There are users here share valueable information of how they tweak their BIOS to achieve good results. Kudos to them! :D Take a look at this link.
    Q: What is MAT?
    Memory Acceleration Technology. More to read here! Please read all to get the whole idea. You should have the idea what actually it is. :D
    Q: Why my Neo2-S/LS doesn't have MAT?!
    GOOD NEWS!! After first week of July, the new BIOS release will enable MAT in all Neo2 boards!
    Q: What about DOT?
    OK. Here is the answer:
    Additional Info for MAT support:
    MS-6728 BIOS V1.3 (All 865PE will support)
    (Note: No MAT option for 865G due to limitation) Though the 865G have no support for MAT but if you insert AGP VGA card, you could still avail of this function!!
    DOT support:
    MS-6728, for exist boards, only full version supports it
    Q: I want to have both MAT and DOT, can I do that?
    Of course you can. However, the amount of setting you can used would depend on your current configurations. The suggested stable configuration if MAT as Fast & DOT as Captain
    Q: Then what is PAT?
    This is what I found in the forum, written by Assaf.
    Quote
    Here's what I understand about PAT.
    As you may or may not know adding pipline stages to any execution unit will allow you to run it at a higher frequency but it will increase the latancy from start to end (measured in clock pulses).
    Now, in order to ensure reliable operation at 800MHz FSB intel added 2 pipline stages to the memory controller (as based on the original dual memory controller in the E7205 chipset)
    This they called i865PE and it will only put into action these 2 stages when 800MHz FSB is applied (which it needs the bios to tell it is the case)
    Intel take the better yealdes of 865PE and validate them for 800MHz with the 2 extra stages disabled.
    These they call 875P.
    A 875P bios with PAT enabled simply does not "tell" the chipset it it running at 800MHz so the extra stages are inactive thus reducing latancy relative to a situation where these stages were activated.
    A hacked 865PE bios will simply follow the 875P bios rule of not notifing the chipset it is running at 800MHz.
    PAT is not an optimization, it's a de-un-optimization
    [/color]
    Q: Can 875P/865PE boards support DDR266 RAM for 800MHz FSB CPU?
    Yes, although the product webpage did not highlight DDR266.
    Q: My Kingston HyperX RAM always cause errors with 875/865 board!
    Known issue. Please read here: http://www.kingston.com/support/faqs/memory/intel_3.asp
    Q: My system does not run stably with DDR400
    A: Set DDR Voltage to 2.7V and above for DDR400, regardless what the RAM manufacturer advertised.
    Q: How to set different FSB:DDR ratio? I can't find in the BIOS
    The FSB:DDR ratio can be changed by setting DDR Clock [266,333,400,500,533]. However, your processor's default FSB will affect the ratio. Follow this table:
    FSB DDR ratio
    133 266 1:1
    133 333 4:5
    133 400 2:3
    133 466 -
    133 500 -
    133 533 -
    200 266 3:2
    200 333 5:4
    200 400 1:1
    200 466 -
    200 500 4:5
    200 533 3:4
    If you have 800FSB (200Mhz) CPU, use FSB200 table. If you have 533FSB (133MHz) CPU, use FSB133 table to get the ratio. Ratio "-" is not available and out of chipset limit.
    Examples:
    1. DDR400 overclock P4 2.4GHz to 3.0GHz. Ratio 5:4. FSB:250MHz. DDR Clock : 333MHz
    2. DDR333 overclock P4 2.4GHz to 3.0GHz. Ratio 3:2. FSB:250MHz. DDR Clock : 266MHz
    3. DDR500 Pr default. Ratio 4:5. FSB:200MHz. DDR Clock: 500MHz.
    5. HDDs
    Q: Can Promise RAID support 2 PATA + 2 SATA = total of 4 HDDs for a single RAID array? RAID-0? RAID-1? RAID-0+1?
    Yes, Promise RAID support 2 PATA + 2 SATA (RAID-0 or RAID-1 or RAID-0+1)
    Q: Does ICH5R's SATA controller support RAID?
    Yes, but only ICH5R, not ICH5. Update: MSI has released beta BIOS 1.81B with ICH5R RAID-1 support. Check the link above in the BIOS section.
    Q: My HDD LED doesn't lit!!!
    As what I have been told that the HDD LED only lit when there are activities in IDE Primary and Secondary channels. No support for ICH5's SATA and/or Promise SATA activities yet. In other words, the HDD LED will not lit and indicate any activities for your SATA drives.
    Q: What is SATA? What is PATA?
    SATA = Serial ATA. There was no such "PATA" acronym before. After Serial ATA appeared, people started to find IDE as opposing to Serial ATA, and hence called IDE as "Parallel ATA" or PATA.
    Q: I enable SATA in BIOS but I didn't see any SATA Controller listed in the Device Manager!
    You will see two sets of IDE ATA/ATAPI Controllers - Intel 82801EB Ultra ATA Controller x2, Primary IDE Channel x2, Secondary IDE Channel x2. That's how Windows installed the drivers.
    Q: How should I install my HDD for RAID configuration?
    Note that the Promise RAID controller only controls IDE-3, SER-3 and SER-4 ports. Make sure you have your HDDs connected to these ports. Make sure you have enabled "Onboard Promise IDE" in the BIOS. Then after the POST screen, press CTRL-F once prompted and go to the RAID setup screen to setup your RAID configuration.
    While the ICH5R controls IDE-1, IDE-2, SER-1 and SER-2. For ICH5R, only SER-1 and SER-2 can be set as RAID. So make sure your SATA HDDs are connected to SER-1 and SER-2. But make sure you have enabled "Configure SATA as RAID" in the BIOS. After the POST screen, press CTRL-I once prompted and go to the ICH5R RAID setup screen to setup your RAID configuration.
    For more comprehensive RAID setup guide, please read this guide written by vango44. Great contribution!!
    Q: My SATA HDD always gives me errors, data corruptions and can't boot!!
    Check the SATA HDD's bridge chip with a "M" logo, the chip build has to be B5P and above, not B2P/B3P which are known to be buggy. B4P is OK but B5P is better. Maxtor and Western Digital SATA HDDs are known to use this bridge chip. Seagate Barracuda V uses different bridge chip and does not make that much problems compared to Maxtor's. RMA the HDDs if possible. MSI is working on the BIOS to fix this incompatible issues. Get BIOS 1.9B3 or 1.6B2 or above. I have seen around October 2003 that Western Digital HDDs come with B5P bridge chip.  
    Q: I want to use IDE3 for normal HDD, non-RAID
    Set this in the BIOS under Integrated Peripherals:
    Onboard Promise IDE : As SATA
    Q: What is Legacy mode and what is Native mode?
    Legacy mode uses 14 and 15 IRQs. Legacy mode can support up to 2 IDE channels, each IRQ for each channel, which means it can support 2 SATA, or 2 SATA + 2 PATA or 4 PATA. Legacy mode also works comfortably with most OSes including Linux.
    Native mode means you may use all available IRQs and can support up to 2 SATA and 4 PATA. Native mode may have issues working with some OSes such as Win9x and Linux, especially on IRQ assignments.If you have Win98/ME, use Legacy mode only!
    Q: How to enable both SATA and PATA?
    You can use both Legacy mode and Native mode, depending on how many devices you use as described above.
    For Legacy Mode:
    ATA Configuration: PATA+SATA
    S-ATA Keep Enabled: Yes
    P-ATA Keep Enabled: Yes
    PATA Channel Selection: Both
    Combined Mode Operation: PATA First/SATA First, depending on which you want to act as 1st Channel.
    S-ATA Ports Definition: P0-1st/P1-2nd or P0-3rd/P1-4th, depending on which you want to act as Master.
    For Native Mode:
    ATA Configuration: SATA Only or PATA only, depending on which you want to be the FIRST BOOT device!
    S-ATA Keep Enabled: Yes if you chose PATA only
    P-ATA Keep Enabled: Yes if you chose SATA Only
    PATA Channel Selection: Both
    Combined Mode Operation: PATA First/SATA First, depending on which you want to act as 1st Channel.
    S-ATA Ports Definition: - P0-1st/P1-2nd or P0-3rd/P1-4th, depending on which you want to act as Master.
    Q: What is S-ATA Ports Definition?
    There are two options: P0-1st/P1-2nd and P0-3rd/P1-4th. If you choose P0-1st/P1-2nd, your Port-0 S-ATA (SER-1) will become the 1st IDE Master, ie IDE-1 Master. and Port-1 S-ATA (SER-2) will become 2nd IDE Master. If you plan to boot with SATA HDD, it's recommended to set to P0-1st/P1-2nd. If you plan to boot with PATA HDD, it's recommended to set to P0-3rd/P1-4th.
    Q: When I enable SATA+PATA mode, why only IDE-1 or IDE-2 can be used?
    If you chose "SATA 1st Channel", IDE-1 will be dropped. If you chose "PATA 1st Channel", IDE-2 will be dropped.
    Q: I want my SATA to be the 1st IDE drive in Legacy Mode along with PATA, how?
    Set this:
    ATA Configuration: PATA+SATA
    S-ATA Keep Enabled: don't care
    P-ATA Keep Enabled: don't care
    PATA Channel Selection: don't care
    Combined Mode Operation: SATA 1st Channel
    S-ATA Ports Definition: P0-1st/P1-2nd
    With this configuration, you can have your SER-1 and SER-2 act as IDE-1 master and slave. But you can only connect your PATA drives on IDE-2 slot.
    Q: I am a noob, I want more details.
    More info? here
    Q: How to support 250GB HDD? Windows only sees up to 134GB.
    Follow this instruction: here for Win2000 and WinXP.
    Q: I've installed a new SATA HDD, I can find it in Device Manager but it doesn't appear in Windows Explorer at all! HELP!!
    You need to format the HDD, not just SATA but also PATA HDD then only Windows Explorer can see it and assign it with a drive letter. To format a HDD, right click on My Computer, select Manage, look for Disk Management. You should see a no-drive-letter unformatted drive there in the list. Get it formatted by right click on it and choose the obvious option there is.
    6. Onboard Sound
    Q: My onboard sound lost after I overclock the system!
    Goto BIOS setup and lock AGP/PCI to 67/33.
    7. Universal Serial Bus [Thanks to Danny for contribution]
    Q: Why doesn't my board have USB2 ports?
    A: The ICH5 and ICH5R chipsets support up to 8 USB2 ports. Under Windows XP when you view your USB settings using Device Manager you will see 4 Intel 82801EB USB Universal Host Controllers and 1 Intel 82801EB USB2 Enhanced Host Controller; Windows 2000 is similar, you are looking for "Enhanced". If you don't see "Enhanced" you need to install SP1 for XP or the latest service pack for W2K. If you have these service packs installed and still don't see enhanced, used the Device Manager to remove the 5 controllers and reboot to allow Windows to correctly install the right drivers.
    Q: If I have 8 USB2 ports, why does Sandra tell me they are USB1.1?
    A: When lower speed devices are plugged in, or high speed devices are plugged in without USB2 operating system support, they are routed to the low speed host controllers. High speed devices are routed directly to the Enhanced host controller when operating system support exists.
    Base on http://www.intel.com/design/chipsets/manuals/29865602.pdf
    8. CPU - contributed by Danny!  :biggthumbsup:
    Q: I have an 800 FSB Pentium 4 CPU, but the bios is set for 200! If I set it to 800 it crashes! What is wrong?
    A: The FSB rating of the CPU is 4 times the FSB rating of the motherboard. To quote Intel: "This is accomplished through a physical signaling scheme of quad pumping the data transfers over a 200 MHz clocked system bus and a buffering scheme allowing for sustained 800 MHz data transfers." So valid settings are 100 for a 400FSB CPU, 133 for a 533FSB CPU and 200 for an 800FSB CPU.
    Q: The Windows task manager and the Device Manager show I have two CPU's. What's wrong?
    A: Your CPU is a model that has Hyperthreading technology and it is enabled in the bios. To quote Intel: "It allows software programs to "see" two processors and work more efficiently. This new technology enables the processor to execute two series, or threads, of instructions at the same time, thereby improving performance and system responsiveness."
    Q: Do these boards support Prescott CPU?
    Update: Prescott spec is not finalized. There might be more requirements needed other than meeting FMB guideline. It is hard to say if current motherboards can fully support it. [/color]
    This is the latest info from MSI. Check this link here
    9. Power Management
    Q: What are S1/POS and S3/STR modes?
    S1/POS = Power On Suspend, nothing turn off just that everything is running in extremely slow.
    S3/STR = Suspend to RAM, PSU only powers 5V_STBY to the board for RAM refreshing, the rest all off.
    Additionally,
    S4 = Suspend to Disk. Win2k/XP calls it "Hibernation" mode. In this mode, the RAM and CPU state images are copied into the HDD. After S4 mode, you can safely remove the power cord.
    S5 = Soft Off. PSU still supplies 5V_STBY.
    G3 = mechanical off. No power at all to the board.
    Q: Where to set the standby modes?
    For S1 and S3, you can set the standby mode to either S1 or S3, not both, in the BIOS. Note that Windows cannot choose which standby mode to run. You have to set it in the BIOS.
    For S4, you can only set it in Windows 2k/XP (and ME, but not 98).
    10. Others
    Q: I have MSI FX5900 which has double sided fans, can it fit in the board?
    Most boards can fit the FX5900. Including, the NEOs' MS-6728, MS-6758, and others like KT4A ultra, MS6777 Nvidia board.
    Q: Why my NB Temp value is always stay the same?
    On 875P Neo and 865PE Neo2, there is no NB temp sensor! The value you read from CoreCenter does not mean anything. Please update to the latest CoreCenter.
    Q. What are the two lights on my "P" series board for?
    A. These are the Overclock Signal Lights:
    1. Green, Green: Both AGP and CPU are dynamic overclocking.
    2. Green, Red: The memory is overclocking to 533MHz.
    3. Red, Green: The external frequency is overclocking to 350MHz, and the frequency between the north bridge and CPU is 1400MHz.
    4. Red, Red: CPU is dynamic overclocking now.
    There are more to come soon. Please do not reply or request for FAQ contents in this thread. The FAQ will be picked up from the popular threads. Thanks.
    Update History:
    6/23/2003 : Added onboard sound lost fix
    6/25/2003 : Added HDD LED
    6/26/2003 : GOOD NEWS!! MAT to be available in all Neo2 boards!
    6/27/2003 : SATA, PATA
    7/1/2003 : 865G MAT support!!
    7/7/2003 : MAT + DOT support
    7/7/2003 : Prescott CPU support
    7/7/2003 : DDR266 RAM support for 800MHz FSB CPU
    7/17/2003 : Prescott CPU support UPDATED
    7/18/2003 : SATA & PATA updated
    8/15/2003 : latest BIOS updates
    8/15/2003 : RAID-1 support for ICH5R
    8/16/2003 : RAID configuration
    9/02/2003 : beta BIOS updates - 1.81B
    9/03/2003 : beta BIOS update for 865 - 1.52B
    10/03/2003 : beta BIOS update for 875 - 1.9B3
    10/06/2003 : beta BIOS update for 865 - 1.6B2
    10/08/2003 : beta BIOS update for 865 - 1.7B1 link provided
    10/13/2003 : minor updates on old issues
    10/16/2003 : NB temp sensor?
    10/19/2003 : Promise IDE3 for non-RAID function
    10/20/2003 : Prescott updates
    10/21/2003 : FSB:DDR ratio
    11/21/2003 : Legacy, Native mode, SATA+PATA Configuration
    12/01/2003 : BIOS 1.9B6 for 875P
    12/15/2003 : Prescott Support, 250GB HDD support, BIOS 1.9 FINAL
    1/11/2004 : BIOS 2.01B for 865PE Neo2, BIOS 3.30 for 865PE Neo2-P
    1/12/2004 : USB 2.0 [thanks to Danny for contribution]
    1/26/2004 : SATA + PATA Revisited
    1/26/2004 : Added 8. CPU [contributed by Danny]
    1/27/2004 : Added formatting SATA HDD in WinXP
    1/28/2004 : updated on SATA+PATA and links with Danny, Vango44 and Uruk Hai's contributions  :biggthumbsup:
    1/28/2004 : Added power management
    04/05/2004 : Added two lights on "P" series boards  [Danny]

    Dear [Maesus],
    I have tried to duplicate the issue, I saw it only once when I reflash the BIOS and then change the CPU clock setting.
    My procedure as below…
    1.      Boot system
    2.      Update BIOS to 1.9 version
    3.      Restart the system to BIOS setting
    4.      Change the CPU Bus Clock to 229
    5.      Save the setting & exit and then the system restart automatically
    6.      And then I saw the CPU is only running 1.86GHz (my CPU is 3.2GHZ FSB 800MHz)
    But I would like to explain that my procedure as above is incorrect.
    The correct procedure should be as below….
    1.      Boot system
    2.      Update BIOS to 1.9 version
    3.      Restart the system to BIOS setting
    4.      Load BIOS setup default first
    5.      Change the CPU Bus Clock to 229
    6.      Save the setting & exit and then the system restart automatically
    7.      And then I saw the CPU is running 3.66GHz (my CPU is 3.2GHZ FSB 800MHz)
    Note: To load BIOS setup default setting after reflash BIOS that is because all original default setting will be erase after upgrade BIOS. So we always recommend customers to load BIOS default setting first before change any BIOS setting.
    BTW, we have updated the BIOS version to support Prescott CPU. Users can decide to update it or not.
    The new release BIOS as attach file.
    Best regard!
    [MSI Staff]

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