645 Ultra Memory Limitation?

I've had the 645 Ultra board for about 3 years now and I've had no problems running with 756MB of memory, one 512MB double-sided module and one 256MB double-sided module.  I received another 512MB single-sided module for Christmas (from Crucial, using their selector) and I've been unable to use it in my system.  It either reboots spontaneoously or else I receiver an error that says "can't write data 0xXXXXXXXX to location 0xXXXXXXXX can't 'write' the location"  or else it says the same thing except it can't read instead of write.  The memory location changes each time.  I got another 512MB module that is double-sided but I still encounter the same problem but it seems more stable.  I've set the BIOS to manual 100MHz FSB with 3:4 Memory ratio at 266MHz.  I set CAS at 2.5T.  The AGP size is 128MB.  It seems that any amount of memory over 756MB does not work.  Anyone else have a similar problem?  I've read many of the forum issues but none seem like mine.
1.6GHz Pentium 4
MSI 645 Ultra 1.0 Motherboard BIOS 1.9
MSI Ti200 GeForce 3 with 64MB RAM
1.2GB DDR running at 266MHz
80GB IBM Harddrive
20GB IBM Harddrive
1GB Jaz Drive
CDROM
CDRW
SiS IDE driver 2.03.02.00
SiS AGP driver 7.2.0.1170

I had same problem...
I had 2 x 256 twinx llpt 3200 from corsair, no problem, running verry aggrssive timings and turbo timing.
added a 512 stick XLPT (faster still) and system would only boot at safe timing setting and cas2.5, with delay1T (2T)
I posted question on asktheramguy, corsairs very own and very responsive specialist, and he put it down to excessive load on the memory controller.
Also if you have different memory manufactures mixed in the slots, that's even worse, and you may not get the system to boot even after relaxing the timings
maybe lower speed 2100's and relaxd timing would be OK, but not much use with todays games
Or set memory timings to safe in bios...
So i bought another 512 3200XLPT stick and am selling the TwinX 2x256 LLPT's.
Well, I'm at 1gig at present 2 x 512 PC3200 XLPT (little over kill but fast).
With mem ratio set correctly and with my overclock this is running at about 380 Mhz (not the rated 400Mhz).
So upshot is, you'll need to get better ram, get a mached pair, and if your not bothered abour raw memory speed get something mid range cas 2.5 say....

Similar Messages

  • 645 Ultra Memory Timings

    I use 2 sticks of 256 MB Corsair XMS PC2700 CAS2.  It runs great at 2.5, but XP gives me the big blue screen when I set it to 2.  I've tried this with 'normal' timing and 'ultra' with one and both sticks with the same results.  It will load into 98 at cas2, but won't finish some benchmarks.    By the way, this is with no overclocking.  RAM has heat spreaders and case is well ventilated.  Any ideas?
    Also, Sandra 2002 SP1 memory bench gives me 2275/2271 with my memory set at 2.5-2-2CL.  Is this what most of you get?  Thanks everyone!
    MSI 645 ULTRA w/BIOS 1.6 from old forum
    P4 1.8A
    2x 256mb Corsair XMS pc2700
    Tekram ultra160 dc390-u3w
    IBM 36Z15 18.1 GB 15,000 RPM
    SB LIVE!
    MSI GeForce4 Ti4400

    I had same problem...
    I had 2 x 256 twinx llpt 3200 from corsair, no problem, running verry aggrssive timings and turbo timing.
    added a 512 stick XLPT (faster still) and system would only boot at safe timing setting and cas2.5, with delay1T (2T)
    I posted question on asktheramguy, corsairs very own and very responsive specialist, and he put it down to excessive load on the memory controller.
    Also if you have different memory manufactures mixed in the slots, that's even worse, and you may not get the system to boot even after relaxing the timings
    maybe lower speed 2100's and relaxd timing would be OK, but not much use with todays games
    Or set memory timings to safe in bios...
    So i bought another 512 3200XLPT stick and am selling the TwinX 2x256 LLPT's.
    Well, I'm at 1gig at present 2 x 512 PC3200 XLPT (little over kill but fast).
    With mem ratio set correctly and with my overclock this is running at about 380 Mhz (not the rated 400Mhz).
    So upshot is, you'll need to get better ram, get a mached pair, and if your not bothered abour raw memory speed get something mid range cas 2.5 say....

  • MSI 645-Ultra problem

    Hi, I have some problems with my computer.
    Here is my configuration:
    CPU: P4 1.6 ghz
    Motherboard: MSI-6547 645 Ultra
    Memory: 512 Mo DDR 266 mhz
    video: MSI 8836 GeForces II GTSTi64
    I build up this machine in January 2002 by myself and it work fine.  But, this week my computer start to turn off automatically and reboot, after it reboot i can work on it for about 20 min. and then the same thing append.  It even append to me when i was in the BIOS, so for sure its not a windows problem.
    I have try another video card and i still have the same problem.
    Any help would my appreciate, thanks.

    Quote
    Originally posted by rounder
    I also have a 645 Ultra that is doing the same thing. For me it started after I installed Windows XP.
    Windows XP
    MSI 645 Ultra MOBO
    P4 1.8 Ghz CPU
    512 DDR sdram
    ATI Radeon 7500 All-In-Wondor vid card
    Sound Blaster Live! 5.1 MP3+
    maxtor 45 Gig HDD
    Samsung DVD
    TDK CDRW
    Temp is a steady 122 F.
    I can install a cheap vid card and I have NO Problem! ATI sent me a replacement card and it does the same thing, "Black Screen Lock-up" or just reboots. If both ATI cards are doing the same thing, there must be some kind of incompatability between XP and the 7500 AIW (no problems with ATI card and Win 98SE).
    ATI has washed their hands of any future responsibility, so I am apparently stuck with a $200 vid card that doesn't work with my system.
    Tell more about your system, bertz.
    rounder
    In my computer I had a Network-adapter which coused a problem of self-reboot when i tried to shut-down.
    I replaced it with an older one - problems gone !!!

  • 645 ultra - Dual Channel Memory?

    Just Finished Building my system about 2 weeks ago. I was wondering if the MS-6547 is capable of running memory in dual channel mode?
    MSI 645 Ultra (MS-6547 bios ver. 1.0)
    Channel Watt Tech. 350w Power Supply
    P4 Northwood 2.4(400FSB)@3200
    1 Stick 512MB Kingston PC-2700 2-2-2-6 (ultra setting mode)
    Western Digital 80GB 7200 RPM 8MB Cache
    Sony CD/RW 52X
    Samsung CD ROM 40X
    Sound Blaster PCI512
    GeForce MX/MX 400 (PCI Slot)
    Yahama YST-MS50 (Powered Multi Media Speakers)
    HP Deskjet 656C
    Windows XP Pro SP-1

    Following great advice from initial poster to this thread  , I've finally managed an overclock my 645 ULTRA, it's only taken me a year
    Full system virus scan, and clean out.
    Clean Boot,
    Re-Set Ram CPU ratio down to give 266Mhz.
    Turbo Ram Timing.
    Ram Latency CL2
    Ras/Cas Normal.
    Al of which I was backing off, but rightn now seems to hold up
    I was able to wind the FSB up to 118Mhz, clocking me at a mear 2.85 Gig  (which for some reason is higher than 118*24)
    the good thing here, is when the system did crash at 120, the bias did not re-set! which was happening in the past.
    At 120 I got quite a lot of graphical artifacting, but my gcard was running hot since the air temp here is at about 25/26C with sumer approaching (don't help does it!)
    Anyway, I'll be ticking off a few more tweaks tonight.
    I did notice that this did NOT improve Aquamark, but added 1000 points to 3dMark2001, from taking it from 11500 to 12500. Benchmarks moving more from CPU/GPU to GPU only dependant. Codecreatures is a good bench also

  • [SIS Series] 645 ultra reboots continually during post

    Hi guys and gals,
    I've got an msi 645 ultra based system that has been giving me trouble.  I have nothing plugged into it besides the cpu (1.8A pentium 4, hasn't been removed since installed 3 years prior) memory (1x256mb samsung pc2700) and power supply (antec 300w).  The system is resetting itself before it gets into the post screen.  Looking at the d-bracket, it is all red, then led one kicks on (so it is not the cpu), then it moves from led one to two (so it completes the "early chipset initialization"), but then it goes back to one, followed by two, in an endless loop.  Of course nothing is displaying on the screen at this time, and the process is not effected by removing the stick of ram.  Does this indicate a bad motherboard?
    Joel

    Clear CMOS?

  • Ms-645 ultra (MS-6547) CPU:RAM

    Hullo,
    I Just Finished building my new system. I am in the process of clocking it out. I used Fuzzy Logic 4 to find out at what speed my system crashes at. Fuzzy crashes any where between 139MHz & 143MHz system clock with CPU core voltage only slightly juiced to 1.5 volts.
    This is probably not a good program for the actual overclocking from what I've read, but does serve as a good burn in utility. So I've decided on a 133MHz system clock in bios. Don't want to get too greedy right now as I am using stock H/S and fan. Next did a 5X burn in with Sandra and couldn't crash my system 49c idle 62c load. I must say this is a very nice mobo, extremely stable.
    What I am having problems deciding on are my memory timings. This is my first MSI mother board and I'm not really familiar with the normal fast ultra and turbo settings.
    Initially I set at the normal selection with CPU - RAM ratio at highest setting of 4:5 and CPU-Z gives me these memory numbers 166MHz & 2.5-3-3-7-11.    
    Next I tried the ultra setting and the highest ratio of 1:1 any other ratio causes system to lock up. CPU-z gives me these memory numbers 133MHz 2.5-2-2-6-9
    It dosen't Appear that the Ultra timing mode offers any advantages over default memory timing settings. Are these words "Ultra" and "turbo" just marketing schemes meant to entice the common PC user, or are there some additional speed settings that go along with with the ultra and turbo modes that I am unaware of. Also after setting system clock to 133MHz My PCI & AGP are left untouched at 33MHz & 66MHz. I was expecting higher speeds. How are these independant? Where can I adjust these to clock along with the system clock. With those AGP & PCI numbers it behaves like a true 533MHz FSB system. I'm a little baffled with this new system. Any explainations would be greatly appreciated.
    MSI 645 Ultra (MS-6547 bios ver. 1.0)
    Channel Watt Tech. 350w Power Supply
    P4 Northwood 2.4(400FSB)@3200
    1 Stick 512MB Kingston PC-2700([email protected])
    Western Digital 80GB 7200 RPM 8MB Cache
    Sony CD/RW 52X
    Samsung CD ROM 40X
    Sound Blaster PCI512
    GeForce MX/MX 400 (PCI Slot)
    Yahama YST-MS50 (Powered Multi Media Speakers)
    HP Deskjet 656C
    Windows XP Pro SP-1

    I'm not displeased, only a little puzzled. in fact i was counting on having to reduce the core & memory speed of my card just a little bit. to allow for a higher oc. Is this a 400/533 mobo manual says 400. Hmmm. I wonder what would happen if I put an 800 FSB cpu in here. bios system clock goes to 200. I happen to have one. this mat be interesting.  

  • 645 Ultra OR 645EMax?

    I have purchased and installed a motherboard from MSI.
    Unfortunately it has a problem - it intermittently will not pass beyond the 3rd stage of the LED warnings ( Memory Detection Test ).  I have changed the RAM and it is fine.
    I am confused as to its identity, since on the mother board it has various markings:
    645 Ultra
    MS- 645EMax  ( however the 645EMax is stuck onto the motherboard.
    N 1996
    D33008
    Bar code on right hand side says - 2620023509
    The BIOs rom has the following marks:  AMI BIOS - 686 - 1999 - BK26 - 4537
    It also has an orange MSI-DDR chip near the processor and a SiS 961 chip to the south ( PM01014 - 0214IA )
    CAN YOU TELL FROM THIS WHAT MY BOARD IS PLEASE.
    The only place I can find a reference to a problem with booting is in BIOS Ver. 1.5 of the 545Ultra - where there is a fix for "Fixed after resume from S3, power button cannot work."
    I have applied this but it still has problems.  Can you help please??

    Sounds like my board:
    ms-6547 v1.0... 645dx max c
    333 mhz DDR
    133 ATA
    I know from previous posts that there is alot of
    confusion about the difference between thr
    Ultra and MaxC...the MaxC is a souped-up
    ultra and has the same markings except the
    sticker that says Max.

  • 645-Ultra Timing Settings (MS-6547)

    I just finished building my new PC. I've been exploring and found in the bios timing setting modes. My mode is currently set to normal. When trying to advance the settings to fast, turbo, or ultra the PC won't  boot or post until I clear CMOS.
    Any idea why the faster settings won't work?
    Also I have installed Fuzzy Logic 4. When trying to manipulate any of the overclock
    settings, the system locks and I can't reboot until I unplug the system. Any idea why Fuzzy Logic freezes the sysem?
    The system is stable and runs good wiyh no other known issues.
    MSI 645 Ultra (MS-6547 bios ver. 1.0)
    Channel Watt Tech. 350w Power Supply
    P4 Northwood 2.4
    1 Stick 512MB Kingston 2-3-3-6 1T
    Western Digital 80GB 7200 RPM 8MB Cache
    Sony CD/RW 52X
    Samsung CD ROM 40X
    Sound Blaster PCI512
    GeForce MX/MX 400 (PCI Slot)
    Yahama YST-MS50 (Powered Multi Media Speakers)
    HP Deskjet 656C
    Windows XP Pro SP-1

    Here is What CPUZ spit out.
    CPU-Z version 1.22
    Memory Modules Serial Presence Detect (SPD)
    Module #1
    General
    Memory type      DDR-SDRAM
    Manufacturer (ID)   Kingston (7F98000000000000)
    Size         512 MBytes
    Max bandwidth      PC2700 (166 MHz)
    Part number      K
    Attributes
    Number of banks      2
    Data width      64 bits
    Correction      None
    Registered      no
    Buffered      no
    Timings table
    Frequency (MHz)      133   166   
    CAS#         2.0   2.5   
    RAS# to CAS# delay   3   3   
    RAS# Precharge      3   3   
    TRAS#         6   7
    I'm currently set at 133MHz 2 3 3 6

  • MSI 645 ultra xp / 2000 problem please help.

    I've got 3 MSI 645 ultra mobos. I've tried every thing i can think off to get xp installed and working. I don't get as far as formating the hard disk in the setup. I relpaced the power supply with a qtec 550 watt power supply (the gold one). i've flashed the bios to 1.9, i've used different hardisks and cables. I've checked the memory PC2100 and 2700. It's a pentium 4 1.5, I've tried a 2g in it as well. I'm using an ATI radeon 7500 but have tried a s3 agp card. All the other components work fine in another machine but not on my 3 MSI boards.
    Please help some one out there must have had the same problem. I'll buy the first person who fixes it cakes!!!
    Ta
    Gus

    Hi,
    I ran memtest 3.0 and there were no errors. it ran for 9 hours.
    I am only using one hard disk at a time. it's set as a master on IDE1 and the CDrom is on IDE2 as a master. should I use cable select?? I also tried the hard disk and CD on ide2 and that did not work either.
    Ta

  • Help with 645 Ultra-C

    ok i decided to update my system so i got the 645 ultra-c with a P4 2.2.  i hooked everything up and its been working ok but i get the error stating (XXXXX) referenced memory at (XXXXXX) could not be read. now i get that error whenever i play games. i have the geforce 4 mx 420 and all the updated drivers for it. i never had any problems with it before so i dont think its the graphics card.  the only other new item i added to my system was a stick of ddr 256 pc 2100 ram that i got cheap of the net. so im thinking i got bad memory because ive flashed my bios updating everything and thats the only solution i have left. any ideas???
    thanks

    ok ran the test for about 2 hours had like 5000 errors so im assuming i got bad memory thanks for the help. tip for others dont buy cheap ram off the net lol.

  • MSI 645 Ultra Dead Mobo

    First a little background...
      Bought a new MSI 645 Ultra (version 1.0) about 4 months ago.  Installation of the new mobo, new memory, new video card, and new CPU went just fine.  
      It's been running very stable for the past 4 months, but two days ago I rebooted (warm) and the machine wouldn't even POST!  Hard drive and CD-ROM power up but I don't even get to the BIOS...
      I didn't change anything.  CPU is not overclocked.  I haven't added any hardware since the day I put it together.  I haven't tried flashing the BIOS.  I just rebooted and I get an Early Chipset Initialization error on the D-Bracket.
    Things checked so far...
      I have verified that the memory is still good.
      I have verified that the hard drive is still good.
      I have verified that the video card is still good.
    Things NOT checked so far...
      I have NOT verified that the CPU is still good.
    Things attempted to fix the problem so far:
      I have pulled the memory and booted without it... no change
      I have cleared the CMOS, no change: procedure follows:
        Unplugged power cable,
        Pressed power switch several times,
        Set jumper to "clear" position
        Removed CMOS battery for 2 hours,
        Re-installed CMOS battery,
        Put jumper back to original position,
        Plugged power cable back into computer.
      I have reseated the memory... no change
      I have reseated the video card... no change
      I have unplugged hard drive, cdrom, and floopy from the mobo... no change
      I have taken out the modem... no change
    System configuration:
      Intel P4 1.7GHz CPU
      MSI 645 Ultra version 1.0 mobo
      512MB DDR333 (1 stick)
      nVidia GeForce3 128MB video card
      3.5 floopy drive
      Western Digital 40GB IDE hard drive
      32 speed CDROM
      56K modem
    Is there something that you guys can recommend to fix this problem!?
    Did my bios somehow fry itself when I rebooted? Remember: I'm not getting to the bios at all... no POST... no nothing...!    ?(
    Thanks

    Hey dude, try this first. I had 2 648 Max's today. Neither of them would boot. Cpu's good, memory good. PSUs good. Dude, I was pulling my hair out, argh......
    Then what I did was removed all the pin connectors for the Power Switch, Hard Drive LED, Reset SW. I left the speaker connected. I cleared the CMOS. Took a small screw driver and jumped the two power pins. And walla! The thing started up and was able to get into the BIOS.
    Man, I ate a scooby snack and did a little more investigating and low and behold it was a bad Reset Switch that prevented it from booting.
    This is almost the exact sme sysmptoms your talking about. A similar one I had about two months ago was a bad power switch. It was just arely making contact not allowing the board to start, but all the fans etc... would work.
    So add this to your trouble shooting and maybe this will work.
    Scooby Dooby Doo! 8)

  • MSI 645 Ultra + FX5600 G-Card

    Will the MSI 645 Ultra Motherboard take a FX5600 VTDR Graphics card. Any issues with this combo would be apprciated.
    I'm looking to upgrade and the 5600 VTDR looks a good start to get the FX features in place with a top spec card. :D :D :D

    Hey dude, try this first. I had 2 648 Max's today. Neither of them would boot. Cpu's good, memory good. PSUs good. Dude, I was pulling my hair out, argh......
    Then what I did was removed all the pin connectors for the Power Switch, Hard Drive LED, Reset SW. I left the speaker connected. I cleared the CMOS. Took a small screw driver and jumped the two power pins. And walla! The thing started up and was able to get into the BIOS.
    Man, I ate a scooby snack and did a little more investigating and low and behold it was a bad Reset Switch that prevented it from booting.
    This is almost the exact sme sysmptoms your talking about. A similar one I had about two months ago was a bad power switch. It was just arely making contact not allowing the board to start, but all the fans etc... would work.
    So add this to your trouble shooting and maybe this will work.
    Scooby Dooby Doo! 8)

  • Memory limitation on T61

    I have the following Lenovo notebook :
    Product: ThinkPad T61 8898-55G [change]
    Operating system: All [change]
    Original description: T7100(1.8GHz), 1GB RAM, 120GB 5400rpm HD, 14.1in 1024x768 LCD, Intel X3100, CDRW/DVDRW, Intel 802.11abg wireless, Bluetooth, Modem, 1Gb Ethernet, UltraNav, Secure chip, Fingerprint reader, 4c Li-Ion, WinVista Business 32
    I configured my Notebook with a Dual-boot Windowx XP Pro SP3 and Windows Vista Bussines SP1 (32 bit)
    I have 2x 512 MB PC2-5300 667 MHz DDR2 memory inside.
    I read on the Lenovo site :
     Memory Compatibility
    (**) Windows Vista supports up to 4GB maximum memory (32-bit versions of Windows Vista cannot support 4GB). Windows XP supports up to 3GB maximum memory
    I like to update my memory with
    2x 40Y7734 1 GB PC2-5300 667 MHz DDR2 
    or
    2x 40Y7735 2 GB PC2-5300 667 MHz DDR2
    I like to know if I choose for 2x 2GB , will :
    Windows XP SP3 work just fine only it works with 3GB instead of 4GB installed memory
    Window Vista SP1 (32-bit) with the 4GB (even not supported) work stable ?
    Because the prices of 1 GB and 2 GB won't change much nowadays.
    I prefer to use 2x 2GB modules, but I like to know will it work (even with the memory limitation) stable on XP or on Vista
    or it is better/safer to use 2x 1GB modules
    Can anybody help/explain me or advice me ? 
    Electronic
    Message Edited by electronic on 01-16-2009 09:51 PM

    You're better off with 2x2GB, you may decide to run a 64-bit OS someday...and you will notice a difference between 2GB and 3GB when running a 32-bit OS.
    Cheers,
    George
    In daily use: R60F, R500F, T61, T410
    Collecting dust: T60
    Enjoying retirement: A31p, T42p,
    Non-ThinkPads: Panasonic CF-31 & CF-52, HP 8760W
    Starting Thursday, 08/14/2014 I'll be away from the forums until further notice. Please do NOT send private messages since I won't be able to read them. Thank you.

  • Memory limitation for session object!

    what is the memory limitation for using session objects?
    venu

    as already mentioned there is no actual memory limitation within the specification, it only depends on the jvm's settings
    how different app-server handle memory management of session objects is another part of the puzzle, but in general you should not have problems in writting any object to the session.
    we had the requirement once to keep big objects in session, we decided to do a ResourceFactory that returns us the objects, and only store unique-Ids into the session.
    We could lateron build on this and perform special serialization tasks of big objects in the distributed environment.
    Dietmar

  • HT5642 I need to update iOS 6.1.3 on my iPad2 to 6.1.6, due to security issue. Why is no update available? I do NOT want to install iOS 7, due to memory limitations.

    I need to update iOS 6.1.3 on my iPad2 to 6.1.6, due to security issue. Why is no update available? I do NOT want to install iOS 7, due to memory limitations.

    Any upgrade will be to the most recent, compatible version, in this case 7.0.6.

Maybe you are looking for