Z77a-G43 dual channeling problem

Hello, I know some other people also had similar issues, but I couldn't find a solution.
I was trying to see if the components were working before installing everything in the case, and I have a problem with my mobo Z77a-G43.
If I plug my two piece ram(G.Skill Ripjaws 2x4gb DDR3 2133) into slots 1-3 or 2-4, the mobo does not POST and enters to an infinite reboot process.
However if I plug just one ram into slot 2, everything works great. I checked each piece of my ram, and they work alone in slot 2. So I guess the ram is fine. Also if I plug just one ram to slot 4, it doesn't work. I hope this problem can be solved with some tweaking of bios.
I also checked the pins under my cpu and they look fine.
Thank you for your help.

There have been allot of "memory compatibility improvements" in the bios releases. If your computer is perfectly stable with a single stick.
>>Use the MSI HQ Forum USB flasher<<
Flash to the attached bios using option 1 and point at the entire compressed archive then to your flash drive.
Make sure this is your board:http://www.msi.com/product/mb/Z77A-G43.html#/?div=BIOS
The attached archive will flash your bios to version 2.7 and the ME8.1 1318 firmware extension.
I would suggest running memtest first (included with the tool) if any errors or stability issues, do not flash and proceed to try other memory.

Similar Messages

Z77A-G43 USB Plug problems [HELP]

Board: MSI Z77A-G43 LGA 1150
Bios: Version 04.06.05
VGA: GIGABYTE 660GTX
PSU: Dazumba 230Vac 50Hz 6A
Processor: Intel(R) Core(TM) i5-3330 CPU @ 3.00GHz (4 CPUs), ~3.0GHz
MEM: 6144 MB RAM
HDD : SATA 1TB
OS: Windows 7 Ultimate 64bit
Hello i got a problem where my usb plug always stopped working for no reason
when i boot my PC , everything is fine and about 15-30 (sometimes more than 1 hour)
everything is stopped (Mouse , Keyboard , USB Microphone) BUT the Monitor and the Speaker works fine and it is still working
this is really annoying for me when i playing a game and my mouse got stuck and i have to restart my PC
and also i have an electricity problem in my house the voltage is unstable so i have to use stabilizer
is my motherboard affected by the electricity or what? idk i'm really really new at thing like this and do i need to change my PSU / Stabilizer
Thank you

Quote from: Sea Dog on 19-July-14, 03:49:49
Could you provide more details about the PSU? Wattage rating and the amp rating on the +12V rail(s). Also, what is the current BIOS version? Why 6GB RAM? Are you using 3 sticks? If so, that is known to be counterproductive and has shown performance hits in that configuration in benchtests. Use just 2 RAM sticks in dual channel placed in the proper DIMM slots.
PSU : 600W , +12v1 , 10.35A (Pic below if you want to see it clearly)
BIOS : American Megatrends Inc. V2.12, 11/1/2013
why 6GB? back then i could only buy 6gb because i don't have enough money lol
and i really really need it because it was urgent and i dont use 3 sticks only 2 sticks

MSI BIG BANG TRINERGY dual channel problem!

Hey forum, I just installed a newly bought msi big bang trinergy. Everything went according to plan except from the point where I installed the 4gb (2x2gb) ram dimms( I have the XMS3, 4gb kit by Corsair).
Let it be noted that i followed the instruction manual and installed the dimms in the proper slots. Then when the moment of truth came and powered up my pc, it wouldnt boot. It would go into an endless restart cycle without booting. Then i unplugged the dimm3 and started only using dimm1 and everything went well. I also switched the ram dimms (in case one of them was faulty) and placed it in dimm1 and again there was no problem.
My take on this situation is that there must be some hardware problem concerning DIMM3. I also run a BIOS update in hopes that something might change but no luck.
..So what is your take on this?
Thank you in advance for the advice.
P.S Since i had a P55 mobo before Big bang i read that format is not necessary so i didnt format the pc. Can that be the cause of the dual channel mal-function?

Quote from: Jack on 11-May-11, 22:57:43
Nope.
There are a couple of explanations for the behaviour:
1) there is a problem with the modules
2) the memory slot itself or underlying circuits is/are defective
3) there is a short circuit problem somewhere inside the case which basically blocks that particular memory slot
4) the CPU (or its memory controller) is defective
5) there is some sort of pin-contact problem [bad contacts between the board's socket pins and the contact pads of the processor], caused by bent or broken pins or by too much pressure exerted by the CPU's heatsink
I would start poking at explanation 3) by testing the board outside the case on a non-conducting surface in barebone configuration and, in case that does not change anything, go for number 5): take off the heatsink and inspect both socket pins and contact pads for any irregularities [use a magnifying glass!]
I went to a technician to check the mobo where we tried different memory modules and cpu (100% working ) on a bench table.The pins on the mobo were not bent or anything. We checked all the points you mentioned that needed to be checked but still the problem persisted so it was a memory slot problem. Thanks for all the help! Really appreciate it, the replaced mobo works perfectly

Dual channel problems?

Hi all, I purchased an 8GB set of 10666 GSkill memory for my dv7t-3300 CTO core i7 laptop in December of last year. I first posted in the G.Skill support forums and they recommended I try HP, I will copy over my entire post there as it is detailed as to what I did last week.
Hi all, I've been having some weird issues that I can't be sure are memory related. It's lengthy but I'm trying to explain what all I did and why it's so confusing.
Last December I bought an 8GB memory set for my HP dv7t Quad (Core i7 720QM) laptop, the memory model is F3-10666CL9D-8GBSQ. Shortly after installing them I started to get a random BSOD for MEMORY_MANAGEMENT, but it is so rare and usually happens when I am away from the computer. The past month or so I have also been having my web browser random close quite often, sometimes 5 times in an hour (I use Palemoon/Firefox and it is constantly using over 500MB).
This week was dedicated to memory tests, I ran memtest86+ almost every evening in various configurations. I started with how it had been set up for months and I managed to get some errors in test 5 that were around 2000MB and 3000MB. The next step was to run each stick individually... no errors after 10 hours on each stick. I then put them both back in and ran the test again, no errors again. I then switched the sticks around and ran again, got errors in the same spots. I also tried using the standard memtest86 and the Windows Memory Diagnostic available on the Ultimate Boot CD, neither of which showed any errors at all with both sticks in. I also found MemTest 4.0 from HCI Designs that runs within windows, and it found an error in one of the 3 sessions but did not say where it was.
I have since put my original sticks into the laptop which were 1 2GB and 1 1GB stick from Samsung. Thus far (less than 12 hours) I have not had a single random browser close and no BSOD. I am wondering if the problem is the sticks themselves or dual channel being used(I assume dual channel only works if both sticks are the same size). I looked in the BIOS and can't find a way to disable dual channel, or any advanced BIOS options at all, and I do have the most recent BIOS from HP.
Does anyone have any opinions as to what I can try before trying a new set of memory? If it is related to the dual channel I'll just live with it and get mismatched sticks, not going to send it in under warranty for something easily by-passable.
One of the site admins over there was wodnering if there was any sort of BIOS upgrade planned in the near future. I'm not expecting anything since the last update released by HP was in December of 2010. If there is nothing else that can be done I will just live without dual channel as the memory appears to be working. As I mentioned in the other thread, this is something too small to be without a PC for warranty work.

Read here https://forum-en.msi.com/index.php?topic=117284.msg883658#msg883658

Memory and dual channel problems

Hi
Can someone help me?
1- I have 2x512 MB DDR 400 Twinmos CL 2.5 and amd xp 2600 (fsb 333) and Msi K7n2 delta L. I have tested separatly my sticks, one of them woks great, if i put dram clock at 166 or 200 the sytem is always stable. The other stick is not so great , if i put him at 200, most of times the sytem doesn´t boot and the lights in the d-bracket display memory problems, when it manages to boot, when i get to windows i´m always getting blue screens with error messages. If i put to 166 it´s more stable, but sometimes hapens the same, but less frequently.
I have run memtest, but it shows no errors in both sticks.
2- When i use both sticks together in dual channel dimm 1 & dimm 3 sometimes windows only displays 512 MB, but if i reboot the sytem, i get 1 GB as it should be.
It is not frequently, but sometimes it hapens.
3- How can i detect dual ddr is working or not?
I´m asking this becouse the two sticks i have are similar, but there is a little diference, one of them has twinmos chips and the other has M.tec chips. But both are from Twinmos. Sisoftware sandra shows them as equal.
I have heard that this mobo, on the boot screen should display something like this:
Memory Mode: Dual Channel
or
Memory Mode: Single Channel
But in the boot screen it only says DDR 400 or DDR 333 acording to the setings i have put in the bios.
My bios version is 5.1 (4/18/2003). Do you think i need to flash the bios?
Thanks
Pedro Cascão

Sorry, i forgot to post my bios settings.
CPU fsb clock 166 mhz
cpu interface normal
fsb/dram ratio 1:1
current dram clock 166 mhz
memory timings:
t (ras) 8
t (rcd) 3
t (rp) 3
cas latency 2.5
agp voltage 1.5 v
dram voltage 2.7 v

Z77A-G43 (MS-7758) problem with Win x64 install

Hello,
Motherboard is Z77A-G43 (MS-7758) latest bios v2.7.
I would like to install Windows x64 on 3TB GPT disk.
In accordance with the product description "3TB+ Infinity is not only breaking through the limit of traditional BIOS, but also enhancing the utilization of hard drives efficiently. In addition to supporting the latest 3TB hard drives, MSI 3TB+ Infinity technology can use the 3TB hard drive as boot disk when installing a 64-bit operating system. Compared to competitors, MSI 3TB+ Infinity is an industry-leading technology which substantially presents an advantage of development and application in the future."
HDD is ST3000VX000-9YW166 connected as SATA AHCI. The device is recognized by the bios.
To make sure that I use EFI, I boot with EFI shell and run BOOTx64.EFI from Windows install disk. I select the ST disk. It has one system partition of size about 128mg, the rest of the disk is unallocated. When I attempt to install Windows on the ST disk, I get the message "Windows cannot be installed to this disk. This computer's hardware may not support booting to this disk. Ensure the disk's controller is enabled in the computer's BIOS menu."
What should I do to make Windows install on this disk?
Thanks.

Quote from: Bas on 03-November-12, 03:04:53
Did you turn Infinity on?
I believe Infinity is always on. At least I don't see such an option in bios.

K7N2G-L dual channel problem

Specs: K7N2G-L with 2 sticks of Crucial DDR400 128MB, 360watt Enlight PS, using onboard graphics, BIOS settings all conservative, SPD etc.
Like many out there I'm having problems with the PS/2 ports not responding every other boot. The 2nd board that does this, 5 months separating them. Is MSI ever going to solve this issue, or is it a prob with Nforce boards in general? It's completely ridiculous.
But that's not my real problem. Built another system using this board and it is extremely unstable. First burn-in blue-screened the system within 15 minutes, all subsequent burn-ins did the same. Quicktech pro identifies a memory error when using both sticks in dual band mode. So it's the memory, right? Not so fast. Take one stick out, retest, and everything is okay, no matter which stick. Put both in using dual band and instability and BSODs. So it looks to me like something's wrong with the dual band aspect of the motherboard.
No overclocking, memory timings all conservative, using SPD. Is this a known issue? I did install updated system drivers. Not a software issue as my diagnostic utility runs off a boot disk.
Any ideas?

read the boards page ddr 400 only with a vga card
run ram 1.1 with fsb and keep fsb to about 185 max

MSI Z77A-G43-memory problem

Hello
I bought lately new cpu,mb and memory. When i turned it on it was still rebooting after few seconds after start. So i treid to put just one memory in slot. It worked but only if memory is in bank 3 or 4. In 1,2 computer is still rebooting. Also it works with two memory modules, but putted in 3,4 slots only. And just in single channel. I saw that many people have the same problem and shop service wrote them that it works like that. First You put memory in slots 3,4 and then in 1,2. It is strange for me. I don't have two another memory modules to check if this is true and I want to that it works in dual channel, not single. So, is this true or mb is broken?

Hello. I have the same problem, except, I use 4 Dimms in 4 slots on my MSI board. I installed speaker on MB to see if there are any beep sounds during the booting, but all seems ok. The problem is the PC keeps still rebooting after about 5 sec. from the start. There aren´t any visual information on screen, since the start is so short. I tried to install dimms in 2nd and 4th slot first. Then to 1st and 3rd. In both cases the problem was still the same. When I put all rams in all 4 slots, the result is the same (restart for ethernity). The only way that goes is the PC runs with only 1 dimm in either 1st or 2nd slot. I tested all the memory modules and all of them work fine. I even tried this on a differennt mainboard from ASUS P8Z77-V LX. Now I tested it on MSI Z77A-G43. Both mainboards are new. There is a very slim change that both of them would be defective. Before I got MSI MB, I ran couple of days on the ASUS MB and everything was perfect, so I don´t think that CPU is defective. I even ran a few benchmarks on it. But I still don´t understand why can´t I run the system with all 16 GB of RAM instead of 4 GB in one slot. Please help me.

MSI Z77A-G43 RAM Problems

Hi everybody,
I have some big problems with my new build:
Intel Celeron G1610
MSI Z77A-G43
2x4gb Corsair Vengeance LD low voltage 1600 mhz 1.35 v dual channel kit
Seasonic 620w PSU
Saphire 7850 2gb GDDRAM5
My system wont work with both ram sticks in. If I only use one of them (it doesn't matter which one) in whatever slot I want, I don't have any problems. However if I use both of them I get bsods or restarts very soon after windows finishes loading. I must also mention that it's almost impossible to install Windows with both Ram sticks in. I almost always get a bsod when the installer is expanding the windows files.
I must also mention that by default, my motherboard sets my ram to 1333 MHz and 1.5v even if the producer says that the ram should run at 1600 MHz and 1.35 v. If I set them to these values myself in the oc menu, they are reset to the default values again immediately after I get another crash.
I have the latest bios and drivers and I don't know what else to try: ( any ideas?
Thank you!

Hi flobelix and thank you very much for your response. I tried your solution and on the next powerup, my pc didn't crash at all and I ran a couple of games and memory intensive programs.
However, unfortunatelly, after I closed the PC for a while and restarted it again, the problems came back. The ram timings don't change anymore in BIOS but the system constantly restarts. I ran memtest for 6 hours last night with both sticks of ram in and it did not find any errors so I can't figure out what's wrong.
Here are a couple of crash dumps:
On Sun 2/24/2013 7:08:04 AM GMT your computer crashed
crash dump file: C:\Windows\Minidump\022413-9204-02.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x71F00)
Bugcheck code: 0x3B (0xC0000005, 0xFFFFF80002CEF09D, 0xFFFFF88002A11C10, 0x0)
Error: SYSTEM_SERVICE_EXCEPTION
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: This indicates that an exception happened while executing a routine that transitions from non-privileged code to privileged code.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.
On Sun 2/24/2013 7:08:04 AM GMT your computer crashed
crash dump file: C:\Windows\memory.dmp
This was probably caused by the following module: win32k.sys (win32k!XLATEOBJ_iXlate+0xF104)
Bugcheck code: 0x3B (0xC0000005, 0xFFFFF80002CEF09D, 0xFFFFF88002A11C10, 0x0)
Error: SYSTEM_SERVICE_EXCEPTION
file path: C:\Windows\system32\win32k.sys
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: Multi-User Win32 Driver
Bug check description: This indicates that an exception happened while executing a routine that transitions from non-privileged code to privileged code.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem.
The crash took place in a standard Microsoft module. Your system configuration may be incorrect. Possibly this problem is caused by another driver on your system that cannot be identified at this time.
On Sun 2/24/2013 7:06:31 AM GMT your computer crashed
crash dump file: C:\Windows\Minidump\022413-9126-01.dmp
This was probably caused by the following module: iusb3xhc.sys (iusb3xhc+0xC0D8)
Bugcheck code: 0x1E (0xFFFFFFFFC0000005, 0xFFFFF88003AEA0D8, 0x1, 0x17C)
Error: KMODE_EXCEPTION_NOT_HANDLED
file path: C:\Windows\system32\drivers\iusb3xhc.sys
product: USB 3.0 Device Driver
company: Intel Corporation
description: Intel(R) USB 3.0 eXtensible Host Controller Driver
Bug check description: This indicates that a kernel-mode program generated an exception which the error handler did not catch.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem.
A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: iusb3xhc.sys (Intel(R) USB 3.0 eXtensible Host Controller Driver, Intel Corporation).
Google query: Intel Corporation KMODE_EXCEPTION_NOT_HANDLED
On Sun 2/24/2013 12:55:57 AM GMT your computer crashed
crash dump file: C:\Windows\Minidump\022413-9188-01.dmp
This was probably caused by the following module: ntfs.sys (Ntfs+0x48AB)
Bugcheck code: 0x1000007E (0xFFFFFFFFC0000005, 0xFFFFF880012598AB, 0xFFFFF88002FCB938, 0xFFFFF88002FCB190)
Error: SYSTEM_THREAD_EXCEPTION_NOT_HANDLED_M
file path: C:\Windows\system32\drivers\ntfs.sys
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT File System Driver
Bug check description: This indicates that a system thread generated an exception which the error handler did not catch.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem.
The crash took place in a standard Microsoft module. Your system configuration may be incorrect. Possibly this problem is caused by another driver on your system that cannot be identified at this time.
On Sun 2/24/2013 12:55:51 AM GMT your computer crashed
crash dump file: C:\Windows\Minidump\022413-8829-01.dmp
This was probably caused by the following module: Unknown ()
Bugcheck code: 0x0 (0x0, 0x0, 0x0, 0x0)
Error: CUSTOM_ERROR
A third party driver was identified as the probable root cause of this system error.
Google query: CUSTOM_ERROR
On Sun 2/24/2013 12:47:27 AM GMT your computer crashed
crash dump file: C:\Windows\Minidump\022413-10842-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x71F00)
Bugcheck code: 0x1E (0xFFFFFFFFC0000005, 0xFFFFF88002F2DEA0, 0x0, 0x0)
Error: KMODE_EXCEPTION_NOT_HANDLED
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: This indicates that a kernel-mode program generated an exception which the error handler did not catch.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.
On Sun 2/24/2013 12:40:16 AM GMT your computer crashed
crash dump file: C:\Windows\Minidump\022413-9516-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x71ED0)
Bugcheck code: 0x1E (0x0, 0x0, 0x0, 0x0)
Error: KMODE_EXCEPTION_NOT_HANDLED
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: This indicates that a kernel-mode program generated an exception which the error handler did not catch.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.
On Sat 2/23/2013 10:32:27 AM GMT your computer crashed
crash dump file: C:\Windows\Minidump\022313-10030-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x71F00)
Bugcheck code: 0x1E (0xFFFFFFFFC0000005, 0xFFFFF88002F26C30, 0x0, 0x0)
Error: KMODE_EXCEPTION_NOT_HANDLED
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: This indicates that a kernel-mode program generated an exception which the error handler did not catch.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.
On Sat 2/23/2013 10:29:40 AM GMT your computer crashed
crash dump file: C:\Windows\Minidump\022313-9516-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x71F00)
Bugcheck code: 0x1E (0xFFFFFFFFC0000005, 0xFFFFF80000B9A850, 0x0, 0x0)
Error: KMODE_EXCEPTION_NOT_HANDLED
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: This indicates that a kernel-mode program generated an exception which the error handler did not catch.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.
On Sat 2/23/2013 10:09:46 AM GMT your computer crashed
crash dump file: C:\Windows\Minidump\022313-9438-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0xB2C22)
Bugcheck code: 0x1000007E (0xFFFFFFFFC0000005, 0xFFFFF80002D0EC22, 0xFFFFF88006DDA6C8, 0xFFFFF88006DD9F20)
Error: SYSTEM_THREAD_EXCEPTION_NOT_HANDLED_M
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: This indicates that a system thread generated an exception which the error handler did not catch.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.
Since I'm desperate, I'm just gonna go ahead and reinstall windows again. During the last successful pc run (after I took your advice), I ran MSI live update and installed the rest of the utility software. Maybe this did something to my drivers.... I'm really reaching the end of my possibilities :(

Z77A-G43 New New Box G630 CPU problems

Today i buy new Z77A-G43 becose i have some problems with my P67A-C45 and my new MB start work , ram work normali in dual cennel now but not anderstand next, is this on start cooler dont work 2-3 accelerate and he start on omg speed and back to normal and work? , on my P67A-C45 this problem to. (cpu g860 i buy friday, but cpu what i sell is g630 and dont have this problem)
Cpu G860 is new box, bios i upgrade from 2.5 to 2.10 lock on youtube, someone know what is this and why?

Quote from: flobelix on 10-August-13, 20:00:37
You are quite hard to understand. If it is about a fan speed problem try enabling cpu smartfan in bios.
why need to activate if this only if i start PC from shutdown mode, i dont see this specification on g630 box or another 7 years to old cpu, bt i see on G860 box he have 1 fan identical

K9N PLATINUM(NON SLI) DUAL CHANNEL MODE PROBLEM

hi
put a new system together with the following specs:
amd am2 3800+(2ghz)
k9n platinum 1.20 bios
2x512 kingston ddr2(667mhz)
pci video(yes not pci-e)have not decided which vid card to get yet.
500w psu 12v 35a,5v 25a,3.3v 25a
liteon dvd burner
seagate 300gb ide 7200/16 meg cache windows xp-pro sp2 with all updates.
not overclocking or even trying to.
no sata drives connected.
has never failed to post,boot windows and no lockups or blue screens.
ok,i am trying to get the memory to work in dual mode.
everytime i put the memory in the dual mode slots,the cpu clocks down to 1ghz instead of 2ghz.
verified by bios,windows and cpu-id
i have tried different memory(both ddr2 533 and 667)667 installed now.
also never had any install problems with windows and everything runs fine until i tried dual mode.
after the cpu clocks down to 1ghz,the only way to get it back to normal is a bios reset( load defaults
or press red button).
if i leave the memory as single channel then i have no issues.
also cpu-id says the chipset for my board is nforce 550,i thought k9n platinum had 570 nforce chipset?
this might just be a problem with cpu-id though.
any thoughts on the cpu down clock problem in dual channel mode?
thanks,jeff

1 assume you can get into BIOS with 1 stick only?
Go into the BIOS and manually set the timings and voltage to what your memory manufacturer recommends. Use a 2T command rate and see if it works.
Try both "sets" of dual channel slots, i.e. the two left slots or the two right slots.

Dual Channel memory problems on Neo 875P

I am having considerable trouble getting the NEO 875P to work with dual channel DDR400 DIMMs. I have two Kingston KVR400X64C25 DDR400 256MB memory modules, each of which works correctly by itself. However, once I move one
of the modules to channel B, I cannot boot my operating system (currently Windows XP.) The problem also occurs in Windows 2000, which I also have on the system. I receive blue screen errors that indicate paging/memory problems. I have upgraded my BIOS to the latest version (1.3)* in the hope that it would solve my problems, but it has not. The POST screen detects that there is 512MB of memory working in Dual Channel mode, but even when it does get through the O/S booting process (rarely), it crashes within minutes. Putting just one of the chips in makes the system perfectly stable. If anyone has any information, please let me know!
Thanks,
Jim Keller
http://www.centerfuse.net
* My board was dead after trying to flash the 1.3 BIOS, but after about 10 attempts of using CTRL+HOME method to recover the BIOS, it finally worked with version 1.0. I then re-flashed with 1.3, and it rebooted fine. Are there any updates about all of the problems with v1.3 ?

>I can only answer based on what I've read on this forum
I figured as much, I was just wondering if you knew whether MSI themselves frequents the forums or answers emails sufficiently.
I've had an interesting development though. I stumbled upon Tom's Hardware Guide's article about 875P motherboards at http://www17.tomshardware.com/motherboard/20030519/i875p-01.html
They mentioned that they needed to increase the memory voltage from 2.5 to 2.6 in the BIOS to get some memory modules to work. I did this, and for the first time, I am running in Dual channel DDR mode. However, the article also mentions that "the system does not run completely stably", so I guess I'll have to wait and see if it crashes again. However, I'm far enough beyond the XP splash screen to post this message, so I guess we're getting somewhere!
-Jim Keller
http://www.centerfuse.net

Problem running ddr3 dual channel mode on MSI X48C Platinum

I am having a problem with running my ram in dual channel mode, in single channel mode it works with out a problem, i switch the ram slots for dual and it does not boot
Can any one give me an answer to why it wont work?
Also having problems with my Q9300 not working with the ram
Processer: Intel core 2 duo E7300 (ES) @ 2.66Ghz OC @ 3.0Ghz
Ram:Corsair: 2x4GB CMZ8GX3M2A1600C9
Motherboard:Msi x48c Platinum
Vid Card:XFX Radion HD6850 XXX edition 1GB GDDR5
PSU:Ultar 600W
HDD:Western Digital 500GB 7200RPM

Also see this thread, https://forum-en.msi.com/index.php?topic=152802.0
Quote
The motherboard overview states: http://www.msi.com/product/mb/X48C-Platinum.html#/?div=Detail
Quote
• Supports four unbuffered DIMM of 1.5 Volt DDR3 800/1066/1333/1600 DRAM, 8GB Max
• Supports two unbuffered DIMM of 1.8 Volt DDR2 667/800 DRAM, 4GB Max
With the last BIOS, it states that 4GB modules may be possible, but looking at the memory test report http://www.msi.com/file/test_report/TR10_1393.pdf it seems this was only done for DDR2 modules, as these are the only ones reflecting this.
Suggest you check with MSI technical if the BIOS should accommodate DDR3 4GB modules as well. >>How to contact MSI.<<
Do a CMOS clear, then once in the BIOS, set your DRAM ratio so that the DRAM is at 1066. See if that works.

Neo2 platinum Encountering Stability Problems /w dual channel memory

Hello,
Recently I built my first computer ever, see bottom. After getting windows installed I then had problems with installing other programs and general stability issues. I tried reinstalling windows and after the reinstall I got the same problems.
Something to do with the instability is when I start it up, and go into BIOS, it states my Athlon 64 3500+ as running at 2211, a half percent overclock. Also, even though I have the FSB set as 200mhz, when I go into CoreCenter on windows it states the FSB as being set 201mhz. In the nVidia system utility, it states my memory as running at 402mhz, and I had to crank that down to 400mhz to get stability, it allowed my to install programs without error, but there were still stability problems like crashes(blue screen, the computer just plain restarting without notice). I took out one of my memory cards, both of them work alone though, I've ran memory test utilities. That had a good effect and the computer runs fairly stable, but I still have problems, and I want to be able to take advantage of dual channel. I'm running my memory on auto and it's using the times of 2-3-3-6-2T.
Another problem I'm experiencing is the AC97 audio not being detected and loaded by windows, it will say I have no audio device, and the speaker will not show up in the notification area in the bottom right-hand corner. This happens inconsistantly.
-Thank You
AMD Athlon 64 3500+
MSI Neo2 Platinum(nForce3 939 socket)rev1.0 BIOS 1.4
2x Mushkin DDR400 512mb CL2 Blue
BFG GeForce6800GT OC
80gb Hitachi Deskstar SATA

hi bknoll,
welcome to the forum.
1) i wouldn't worry overmuch at the 201 issue.
2) Quote
I've ran memory test utilities. That had a good effect and the computer runs fairly stable, but I still have problems
which test utilities did you use, Don't quiet understand Quote
had a good effect and the computer runs fairly stable
3) It may be worth checking the Mushkin site or any documentation you have to verify that the auto settings agree with the quoted settings for the modules. It's not unkown for errors to occur when the memory controller on the CPU to misinterpret the SPD chip setting on your sticks - this is where the auto settings come from. Some memory like certain corsair modules need to run at different settings on AMD64, thus auto timings must be overidden,
4) Have you installed the Realtek drivers from the CD, & enabled onboard sound in Bios. When these are done normally there's the MSI Sound Effect manager in control panel. you just need to set your speaker config in the Windows Sounds & Audio Devices.
5) Usual question What power supply are you using as been underpowered on the 12v rail in particular can be the cause of crashes,

MSI Z77A-G43 - extreme memory profile problem

Hello everyone,
I’d really appreciate a piece of help here. I’ve bought the MSI motherboard MSI Z77A-G43 and currently I’m having problems with my memory (slots 1 and 3). My PC has following specs:
-   MSI Z77A-G43
-   Intel Core i5 2500K (not overclocked)
-   RAM Patriot 2x4GB DDR3 1600MHz CL9 (PGD38G1600ELK) G2 Series
Everything is set to default values and works fine. But when I enter the BIOS, I see that the memory is automatically set to 1333 MHz. The memory has the XPM. But when I set the XPM (agressive timing, 1600 MHz) support (no other changes) and reboot the PC, it doesn’t work (endless reboot looping). Is there any way how I can make the XPM modus work? The memory is OK (tried on other MBs, XPM without problems), the CPU too. I tried overclocking, with slightly increased voltage I can easily reach 4,8 GHz on CPU, basically everything else is fine. The PSU is also sufficient (700W, OCZ). I can too set the memory on 1600 MHz manually, but the timing isn’t that good.
It’s actually a failure I can live with, but since it’s a brand new PC, I’d like to get the best out of it.
Many thanks
V.K.

Sometimes manually setting them works when XMP refuses to.
I don't know what the XMP SPD profile for that memory is, and a screenshot of your SPD and memory tabs would help.
However try the following.
Disable XMP and reboot so they are back at 1333.
Manually set it to 1600 and ensure manual setting of the timings to 9.9.9.24 see if that works.
If not set your DRAM voltage to 1,575V and see if that works.
It may be that your memory requires 1,65V, in which case, that is what you have to set. You should be able to see that in CPU-Z SPD tab under the XMP profile column.

Z77a-G43 dual channeling problem

Similar Messages

Maybe you are looking for