Prime95 ever have...incompatabilities?

[boatillo]

I cannot for the life of me get Prime95 to run without erroring out on my system. Blend always fails in less than 2 minutes regardless of settings. The other tests can run longer but always fail within the hour.

Brand new XP pro sp2 install

FX-55 @ stock everything

Mushkin Hi-Perf Blue DDR3200 (Infineon BE-5) 2x1gb sticks in orange slots, all stock settings and many many other timings have been tried

DFI nf4 ultra-d board @ stock everything, all unused functions turned off

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I've run the ram at 3-3-3-8 and looser, with every other memory timing set to known stable timings for almost any ram. Tried 2.6, 2.7, 2.8v. Tried orange and yellow slots. 1T and 2T. I have switched everything! This ram is fine, memtest86+ has run all day @ stock and at 240 with 2.5-3-3-8 times with zero errors!

I've run the fsb up to 250 and prime95 works fine (this is with memory at 100mhz and cpu at 6x multi)

Now I've run the entire system on CPU-Burn with error checking on, CPU at 15x200 with 1.475v, ram at 200mhz 2-3-2-6 with 2.6v, and chipset at 1.5v 5x HTT. No errors come up.

Does 32m superpi just fine.

Does Prime95 hate me?

 

[Cutthroat]

My system is nothing like yours, but I can't use Prime95 either, it crashes almost instantly, even at stock settings. My PC is completely stable, I can run Folding@Home for days at full load without problems. So I guess Prime95 hates both of us.

 

[VirtualLarry]

which version of Prime95 are we talking about here? Have you tried 25.5 yet?

 

[boatillo]

I've run 24.14 and 25.5

Just finished setting up an overclock that ran through 32m superpi fine.

Failed 25.5 Prime95 within 5 seconds.

 

[Ika]

Have you tried using Orthos yet? I think it uses the same tests as Prime (or even uses Prime itself, not quite sure...), but that could fix your "incompatibility problem", if you have one. Could be a long shot, but why not.

 

[sutahz]

I googled your problem (did you?) and a few others have had your problem. Ya know what, as long as your computer is stable for you, that should be your bottom line. Or try to RMA your chip, your choice.

 

[Amaroque]

What are your temps? Prime95 will not fail on a 100% rock stable system. My X2 4800 @ 2.8 is running pegged at 100% CPU usage, and 50-52c.

I used to run Prime95 as a DC project for years on OC'd machines w/o failures.

 

[boatillo]

My temps are very fine, 30-32ºC idle and 47-48ºC under maximum load. Voltage on cpu is around 1.46v

I did try a google, but suppose you used a better search term than I did

Sure "as long as your computer is stable for you" is fine, but I need to squeeze the most that I can from this ancient single core and it is hard to test utmost stability by just gaming and looking at anandtech. I will try out Orthos in the place of Prime95 and hope that makes a difference.

 

[Amaroque]

Orthos uses the same code as Prime95. Sure, alot of ppl go with "it doesn't crash on me, so it's stable enough"

From Prime95's website:

You should keep an eye on the results.txt file for any error messages. They can indicate failing memory or an overheating CPU

Perhaps try running Memtest overnight.

 

[VirtualLarry]

A friend of mine had an FX-55, and it wouldn't overclock nearly even a few Mhz. Perhaps your chip isn't stable even at stock speeds. I would try underclocking it until Prime95 is stable. If Prime doesn't run right, then there's no telling what other FPU-using apps will have errors.