[SOLVED] Motherboard has faulty RAM Slot ?

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Mar 29, 2016
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After basicly a month trying to find out what crashes my games with nvlddmkm.sys restored error. I finally found the issue today.

I was almost certain it was my gpu at one point. I tested soo much stuff there is to find online, to keep it short. I tested my old 1050 TI for awhile and i got the same error but less often. I run 4x 8GB memory in my configuration for sometime after a faulty ram set. Before i send the gpu RMA i wanted to try diffrent memory sets and both posted a dram error in slot 1 & 3... I was confused because my 4x memory didn't do that. I tested my 4x before with 3 diffrent memtest programs and they where doing just fine without any errors. After this i put both sets in the other lanes and the dram error was gone.

Slot 1 & 3 = dram error Slot 2 & 4 = no error slot 1 & 3 / 2 & 4= no error

Can this be my cpu too or is this motherboard faulty?

Specs:
Ryzen 5600x
Asus B550-F Gaming Wifi
Trident Z 4x 8GB
RTX 3070 TI
Corsair RM650
 
Last edited:
Solution
After basicly a month trying to find out what crashes my games with nvldd.km.sys restored error. I finally found the issue today.

I was almost certain it was my gpu at one point. I tested soo much stuff there is to find online, to keep it short. I tested my old 1050 TI for awhile and i got the same error but less often. I run 4x 8GB memory in my configuration for sometime after a faulty ram set. Before i send the gpu RMA i wanted to try diffrent memory sets and both posted a dram error in slot 1 & 3... I was confused because my 4x memory didn't do that. I tested my 4x before with 3 diffrent memtest programs and they where doing just fine without any errors. After this i put both sets in the other lanes and the dram error was gone...
Which BIOS version are you currently on for your motherboard? Have you taken the ram kit to a donor system to rule out your board having faulty slots? Corsair never made an RM640 unit. I'm guessing it's a typo and you meant to write RM650. How old is the unit? Did you use DDU to uninstall your GPU drivers, manually reinstalling the latest driver in an elevated command?
 
After basicly a month trying to find out what crashes my games with nvldd.km.sys restored error. I finally found the issue today.

I was almost certain it was my gpu at one point. I tested soo much stuff there is to find online, to keep it short. I tested my old 1050 TI for awhile and i got the same error but less often. I run 4x 8GB memory in my configuration for sometime after a faulty ram set. Before i send the gpu RMA i wanted to try diffrent memory sets and both posted a dram error in slot 1 & 3... I was confused because my 4x memory didn't do that. I tested my 4x before with 3 diffrent memtest programs and they where doing just fine without any errors. After this i put both sets in the other lanes and the dram error was gone.

Slot 1 & 3 = dram error Slot 2 & 4 = no error slot 1 & 3 / 2 & 4= no error

Can this be my cpu too or is this motherboard faulty?

Specs:
Ryzen 5600x
Asus B550-F Gaming Wifi
Trident Z 4x 8GB
RTX 3070 TI Corsair RM640
try this step by step (read until end):
  • Disconnect from internet
  • Uninstall gpu driver DDU (clean and do not restart).
  • Uninstall all the processors on device manager (should be 16 on yours, also when it asks for restart, click on no) like this:
    unknown.png
  • Restart the pc to bios, and update to the latest bios (again if you did). Then go to bios again after update and load default or optimized settings.

  • boot up to windows and install the latest AMD Chipset driver, reboot, and connect to internet.

  • Install the latest nvidia driver.

    *do this all offline until reboot after installing chipset driver, also you may reboot to bios after all of this to set the XMP (and previous settings you did) and make sure ram is on slot 2 and 4 if you use 2 sticks. Download needed files (highlighted word) before doing step 1, do the step by orders.


  • And check windows update (and optional updates) if there is any and install them (except chipset in optional update). Also enable Hardware Accelerated Graphics Scheduling (available on the latest win 10 update) in graphics settings like this and reboot:
    unknown.png
Make sure the psu connected to the gpu is 1 pcie cable per 1 slot (use main cable, not the branches/split) like this:
unknown.png
 
Solution
Which BIOS version are you currently on for your motherboard? Have you taken the ram kit to a donor system to rule out your board having faulty slots? Corsair never made an RM640 unit. I'm guessing it's a typo and you meant to write RM650. How old is the unit? Did you use DDU to uninstall your GPU drivers, manually reinstalling the latest driver in an elevated command?

I have tried everything GPU wise, i have used safe boot + DDU to reinstall diffrent nvidia drivers. My bios is newest version and i have tested 3 diffrent versions before. (BIOS ver.2423 is current)
 
My issue now is:

memory slot 1 & 3 = dram error
memory slot 2 & 4 = no error
memory slot 1 & 3 / 3 & 4 = no error (but probably unstable)

I tested 2 memory kits on these slots.
 
Mixing memory kits may or may not work.
If you check your motherboard manual slots 2&4 are to be used when running 2 sticks of ram.
1&3 are only to be used when populating 4sticks.
So nothing wrong with your motherboard.

thanks for clearing that up, even if all memtest pass it could be some 0.01% error once in awhile?
 
If you do an overnight memtest and it comes up clear with no errors ,your memory is stable.
I would do a hard drive/SSD check to make sure you do not have errors within your game files.
Also the 650RM without an X is a lower quality power supply, so make sure to load balance the PCIE cables as above.
 
If you do an overnight memtest and it comes up clear with no errors ,your memory is stable.
I would do a hard drive/SSD check to make sure you do not have errors within your game files.
Also the 650RM without an X is a lower quality power supply, so make sure to load balance the PCIE cables as above.

I thought only mad mans used 2 cables for the PCIE like that. I have monitored the output with HWiNFO, the 12v varies between 11.88 and 12.08. I don't see any weird dips otherwise.

The SSD and HDD are both checked with SMART and chkdsk as pass.
 
Most monitoring software checks voltages once every second. Not continuous.
So you could be having dips beyond what the software is reporting.
Newer AMD and Nvidia card change power state and power draw extremely fast. If your power supply can not keep up with these changes you get low voltage which results in a driver crash, blue screen error or plain black screen.
Do yourself a favor and run 3 separate PCIE cables to your video card.
It will put less stress on your power supply and video card. And may fix your problem.
Without overclocking your video card can pull 290watts of 12v. So 3 separate cables on a lower end power supply is recommended.
 
Most monitoring software checks voltages once every second. Not continuous.
So you could be having dips beyond what the software is reporting.
Newer AMD and Nvidia card change power state and power draw extremely fast. If your power supply can not keep up with these changes you get low voltage which results in a driver crash, blue screen error or plain black screen.
Do yourself a favor and run 3 separate PCIE cables to your video card.
It will put less stress on your power supply and video card. And may fix your problem.
Without overclocking your video card can pull 290watts of 12v. So 3 separate cables on a lower end power supply is recommended.

We'll see, only 2 PCIE go in a 3070. I think the RAM was the cause of this error anyway.