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TWINX1024-3200LLPT defective


maxa

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I have two pieces of TWINX1024-3200LLPT (= 4 modules overall) in my dual Opteron board, one pair per CPU. This setup worked flawlessly for over a year.

Just recently, without any changes, the system started to act up -- I'm getting random hard hangs (numlock not working anymore) and crashes during startup and bios setup.

I've narrowed down the problem to the memory pair with serial number 214. If I remove this pair from the system it runs stable again for days (until I turn it off). If I put pair 214 back into whatever socket (I've tried them all) the system crashes after a while.

 

Can you tell me how to proceed from here?

 

Thanks!

 

 

memtest reports a bunch of errors before the system locks up:

 

Tst Pass Failing Address Good Bad Err-Bits Count

-------------------------------------------------------

4 0 00002064030 32.2MB a487266 5b78d899 ffffffff 1

4 0 00002064030 32.2MB a487266 5b78d899 ffffffff 1

4 0 000021b4000 33.2MB a487266 5b78d899 ffffffff 1

4 0 000021b4004 33.2MB a487266 5b78d899 ffffffff 1

4 0 000021b4010 33.2MB a487266 5b78d899 ffffffff 1

4 0 000021b4014 33.2MB a487266 5b78d899 ffffffff 1

4 0 000021b4020 33.2MB a487266 5b78d899 ffffffff 1

4 0 000021b4024 33.2MB a487266 5b78d899 ffffffff 1

4 0 000021b4030 33.2MB a487266 5b78d899 ffffffff 1

4 0 000021b4034 33.2MB a487266 5b78d899 ffffffff 1

 

System specs:

Tyan S2885 (K8W)

2 x Opteron 246

2 x TWINX1024-3200LLPT

ANTEC TruePower 550EPS12V

NVIDIA GeForce FX 5900XT

2 x SATA WD740GD

Windows Server 2003

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You should be using CM72SD512RLP-3200 with this MB. Tyan does not give you the option to set the Dim Voltage with this MB and I would suggest 2.7-2.8 Volts with this configuration. But I have no problem replacing the modules for you if you want to try that.

Please follow the link in my signature “I think I have a bad part!” and we will be happy to replace them or it!

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Ok, thanks for the quick reply, I will go ahead and RMA the modules.

 

As an aside, could you tell me what the right voltage for the modules is -- I couldn't find it in the data sheet. I checked the voltage monitor of the MB and it says it is running the modules at ~2.60V.

 

I will consider getting the 'server type' memory you suggested when doing the next upgrade. Can you tell me what timing it uses?

 

Thanks!

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