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Topic Title: Opteron 180 random restart issue
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Created On: 05/10/2006 04:58 PM
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 05/10/2006 04:58 PM
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zrm96
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Posts: 3
Joined: 05/10/2006

So in Feb. I was tasked with getting new computers for my lab. I decided I'd build them. I've never built one by myself, but I thought I did a pretty good job. Until they started randomly rebooting a week or two after I built 'em. It's driving me crazy. Please help.

They're two identical systems:
Opteron 180 (12X200MHz)
Tyan Tomcat K8E (S2865) MB, newest BIOS, CMOS cleared
Enermax Noisetaker 485W PSU
4 x 1GB Corsair XMS 3200 (CMX1024-3200C2) - I should have got TwinX...
2 x 250 GB Seagate Barracuda SATA 7200RPM HDs
LG DVD-RAM
ASUS AX300 video card - I wanted better, but they're workstations...

What I've tried: Memtested all RAM, in almost all configurations. Seems fine. RAM timing at 2.5-3-3-6 (Cas, Ras to Cas, Ras, tras). I run 2T with all four dimms full, 1T and 2T with two or one dimms, doesn't matter. RAM voltage is as high as BIOS will allow (2.65V). All timings are set to 200 MHz. Windows says it's either a device driver or a hardware failure (it seems random which one it blames). XP Verifier verified all installed drivers. Rebuilt as barebones (CPU, MB, PSU, 1 RAM and drives). Flashed BIOS, reformatted. Reinstalled XP. Still does it even though I haven't installed anything. I can't get Tyan's TSM to work (won't let me log in). Multimetered PSU drive rail, all voltages seem fine, although it could be an intermittent problem. I'm really at a loss. Thanks in advance!
 05/11/2006 04:45 PM
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zrm96
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Joined: 05/10/2006

Oh, and it seems like the only time I can get it to restart by itself consistently is when I'm installing new software...
 05/12/2006 02:01 AM
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Thraxz
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Joined: 03/26/2006

That's a classic sign of memory issues. I suspect a stick is bad or a setting of yours somewhere is off.

Have you tried memtest?
Have you tried booting with one stick at a time and testing for the problem?

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System Specs

CPU: AMD Opteron 165| Motherboard: DFI LanpartyUT nF4 SLI-DR | Graphics Card:ATI X1900XTX (719/1600) 512mb | Cooling: DD TDX water cooling | Memory:Centon Advanced BH-5 1GB PC-4000 (2x512) | Hard Drive: ATA 133: 80gb | Power Supply: Silverstone Zeus @ 560 watts | Sound Card: Audigy 2 Value | Case: CM Stacker | Operating S
 05/23/2006 01:22 PM
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zrm96
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Joined: 05/10/2006

Okay, I took all the memory out and memtested one stick at a time. They passed. Did different configs with two sticks. All of the single channel tests passed, but when in a dual channel config there were intermittent failures. Ran memtest for 5 days (I left town), came back to errors, and now it won't boot. Any ideas?
 05/23/2006 11:47 PM
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Bitey
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Joined: 10/07/2003

If you get memory errors and you are using standard timings, then its probably time to start thinking about getting them replaced
 05/24/2006 03:19 AM
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Thraxz
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Joined: 03/26/2006

RMA the suckers if they don't meet spec.

-------------------------
System Specs

CPU: AMD Opteron 165| Motherboard: DFI LanpartyUT nF4 SLI-DR | Graphics Card:ATI X1900XTX (719/1600) 512mb | Cooling: DD TDX water cooling | Memory:Centon Advanced BH-5 1GB PC-4000 (2x512) | Hard Drive: ATA 133: 80gb | Power Supply: Silverstone Zeus @ 560 watts | Sound Card: Audigy 2 Value | Case: CM Stacker | Operating S
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