unstable computer, newish build.

[Jesta]

ok i was running orthas, it made it about 6min

"Test 3, 4000 Lucas-Lehmer iterations of M19374367 using 1024K FFT length.
FATAL ERROR: Rounding was 0.498046875, expected less than 0.4
Hardware failure detected, consult stress.txt file.
Torture Test ran 5 minutes 41 seconds - 1 errors, 0 warnings.
Execution halted."

there is no stress.txt.
My temps stayed at a constant 50-51c and went promptly back to 36c when the test stopped.

But, what is this failure? does this mean it could be the cpu that is giving me issues?

[polobunny]

Originally Posted by Jesta

ok i was running orthas, it made it about 6min

"Test 3, 4000 Lucas-Lehmer iterations of M19374367 using 1024K FFT length.
FATAL ERROR: Rounding was 0.498046875, expected less than 0.4
Hardware failure detected, consult stress.txt file.
Torture Test ran 5 minutes 41 seconds - 1 errors, 0 warnings.
Execution halted."

there is no stress.txt.
My temps stayed at a constant 50-51c and went promptly back to 36c when the test stopped.

But, what is this failure? does this mean it could be the cpu that is giving me issues?

What kind of test did you run in ORTHOS?
CPU, RAM or Blend?
This could indicate a failure with either an overclock, CPU cache (rare) or memory (more common). If you have anything overclocked, zoom back to stock. If you don't, you need a few loops of memtest. :)

There's also the chance of a faulty motherboard, but for the time being I think it's safe not to assume that.

[Jesta]

Originally Posted by polobunny

What kind of test did you run in ORTHOS?
CPU, RAM or Blend?
This could indicate a failure with either an overclock, CPU cache (rare) or memory (more common). If you have anything overclocked, zoom back to stock. If you don't, you need a few loops of memtest. :)

There's also the chance of a faulty motherboard, but for the time being I think it's safe not to assume that.

I did a blend test.

But i replaced the mobo already so i think thats safe. Ill run memtest over night tonight.

[polobunny]

Originally Posted by Jesta

I did a blend test.

But i replaced the mobo already so i think thats safe. Ill run memtest over night tonight.

Sounds like a good idea.
You might also want to run a small FFT to test CPU alone or Large FFT to test some RAM using ORTHOS if you are still unsure after running memtest over night.
I believe memtest is better at testing memory for errors/corruption and ORTHOS for stability which might appear when using improper memory settings or simply pushing an overclock too far. Someone correct me if I'm wrong.

[Jesta]

nothing is overclocked.

So stability isnt an issue. The ram i have has some so-so reviews, even though i got the one suggested here. So im thinking thats it.

Newegg.com - Crucial Ballistix 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory - Desktop Memory

Whats a good ram to replace these with?
Newegg.com - G.SKILL 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory - Desktop Memory

these looks good to me. are they ok?

[polobunny]

Originally Posted by Jesta

nothing is overclocked.

So stability isnt an issue. The ram i have has some so-so reviews, even though i got the one suggested here. So im thinking thats it.

Newegg.com - Crucial Ballistix 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory - Desktop Memory

Whats a good ram to replace these with?
Newegg.com - G.SKILL 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory - Desktop Memory

these looks good to me. are they ok?

Crucial does awesome products. And it's not because it's not overclocked that it shouldn't be unstable.
Are you running this ram at the advertised speed, timings and voltage? In your BIOS, you need to set it to 800mhz, 4-4-4-12 and mostly 2.2v (1.9v is the JEDEC standard for DDR2)

[Jesta]

Im not sure how to make sure i have those set right.

I have the bloodiron p35 series mobo
Newegg.com - DFI BloodIron P35-T2RL LGA 775 Intel P35 ATX Intel Motherboard - Intel Motherboards

I know the options are in bios, i can even see where to change them. But i dont know what 4-4-4-12 means.

i set it to 333/800mhz, and changed it from 1.96v to 2.25. Is that right?

[polobunny]

Originally Posted by Jesta

Im not sure how to make sure i have those set right.

I have the bloodiron p35 series mobo
Newegg.com - DFI BloodIron P35-T2RL LGA 775 Intel P35 ATX Intel Motherboard - Intel Motherboards

I know the options are in bios, i can even see where to change them. But i dont know what 4-4-4-12 means.

i set it to 333/800mhz, and changed it from 1.96v to 2.25. Is that right?

That's a very good step, although if possible you should try running them at 2.2v instead of 2.25v. Also be sure that what you changed was RAM voltage and not another voltage as this could obviously damage the other component.
As for 4-4-4-12, those are the timings. I know a few users here worked with the BloodIron and could probably point you more precisely than me on how to change the memory timings on it.
Anyway, find the entry named "DRAM timing" in the BIOS. Once there, make sure the CAS latency time is set to 4 (first number in the 4-4-4-12). Then TRCD and TRCP to 4 too. TRAS should be set to 12 and the rest should not be messed with. This assure your RAM is running at it's "validated" specifications. Running looser timings (higher values) does not usually make memory unstable but running tighter timings (lower values) ensures a better performance. :)

[Jesta]

ok i have it set to 2.2v, I have found the timings page and these are the ones set to auto.

TCL
TRCD
TRP
TRAS
TRFC
TWR
TWTR
TRRD
TRDWR
TWRWR

Im assuming i change TCL, TRCD, TRP to 4, and TRAS to 12 right?

[polobunny]

Originally Posted by Jesta

ok i have it set to 2.2v, I have found the timings page and these are the ones set to auto.

TCL
TRCD
TRP
TRAS
TRFC
TWR
TWTR
TRRD
TRDWR
TWRWR

Im assuming i change TCL, TRCD, TRP to 4, and TRAS to 12 right?

That's exact.
tCL is referred as CAS latency or tCAS (you'll hear more often about CAS latency and tCAS then tCL though)
tRCD is known as row address to column address delay
tRP is known as row precharge time
tRAS is known as row active to precharge and mostly affects stability and not so much performance
The little t infront of all those terms means 'time'. :)