How to guide: Memtest86+, Prime95, and SP2004

[Markfw]

Also, F@H (and possibly other DC projects) running 24/7 can really test a system for stability. Dereck Wilson (one of the editors on Anandtech) found that his memory was running hot on a system running F@H and he was having stability problems. It was cured with a fan, but the point is, that F@H over several days can test all aspects of a system. If it can to that with no early unit ends, ITS STABLE.

 

[Rubycon]

Newest OCCT is here!

Text

New version features temp monitoring and logging. It also creates graphs for you showing VCORE, CORETEMP, +12V, +5V, +3.3V etc. during the duration of the test so you can see if your PS or MB VRM is holding OK during stress.

 

[BenWhitney]

I agree. Totally!

 

[Dangerer]

bleh i tried running the latest edition of memtest but it won't load. I have it burned to a CD and it loads fine in my laptop, but when running on my vista 64 machine, the whole thing just stalls out before memtest can load up and I have to do a hard reset on the system, is this a common problem? Or is there something wrong with one of my components. I would try floppy, but as of right now my main rig doesn't have a floppy drive.

 

[FireChicken]

Does the latest version of memtest work well with DDR3? Thanks

 

[LOUISSSSS]

why hasn't OCCT been added to this test?

everytime my system would fail P95 after 12 hours, i would fail OCCT in less than 2.
everytime my system would fail OCCT in less than 1 hour, i would fail P95 in more than 8 hours.

the majority of my stability testing has been changed to OCCT. of course, it is not the only stability testing program that i run.

 

[Muse]

Bump!

Um, I guess this didn't need a bump (stickied!). Well, it's just what I needed. Thanks, OP, and all who contributed.

 

[geokilla]

Hey guys. Whenever I stress test, I use Orthos blend for 24 hours and Memtest Test #5 for about 2 to 3 hours (over 20 to 30 passes). Now I'm thinking of switching from Orthos to Prime. I know there is essentially no difference between Orthos and Prime, but what setting should I use for future stress tests? I think I should use Large FTTs right? Or would custom be better?

Also, does Prime show errors automatically or would I have to configure something in the options?

 

[LOUISSSSS]

Originally posted by: geokilla
Hey guys. Whenever I stress test, I use Orthos blend for 24 hours and Memtest Test #5 for about 2 to 3 hours (over 20 to 30 passes). Now I'm thinking of switching from Orthos to Prime. I know there is essentially no difference between Orthos and Prime, but what setting should I use for future stress tests? I think I should use Large FTTs right? Or would custom be better?

Also, does Prime show errors automatically or would I have to configure something in the options?

theres no diff between orthos and prime, but there IS a difference between prime and OCCT, occt detects errors much more quickly than p95. so you won't be stress testing for 24 hours at a time, more like 2-4 hours MAX.

 

[Zarren]

Hey guys,I got a quick question about Prime95.

In Vista 64 bit: When running the test and one core has an error and shutdowns the test for that core.Does this mean my voltage is a tad to low? Or is it something else.Error occura within 2 to 3 seconds during test but not every time,sometimes takes hours.Or is it a Vista thing?

Asus P5N-D 750i chipset .402 bios
e8400 3.0ghz @ 3.6ghz 1.21875 vcore (bluescreens on less)
OCZ Reaper HPC 2 x 2gig dims DDR2 800 4.4.3.15 2T @800mhz 2.090 volts
FSB = 1600mhz
NB chipset at 1.32 volts,all others at auto
NZXT Zero case
PC Power and Cooling Turbo 860 watt psu
Astek LCLC sealed liquid cooling system (cpu only)
BFG 9800 GX2 stock video card

temps at idle cpu = 43-45c chipset = 40-42c
under prim95 full load cpu = 62c after 30min chipset = 47-50c (but only when test for both cores remain runnning)
I've seen my chipset as high as 53c after an hour or so in Hellgate London and running winamp in background by the Asus PC Probe 2 software.
I am more concerned about the chipset temps since I have no idea what is actually to hot for it.
Also I can't seem to find much help on this perticular hardware combo.If anyone has any numbers to sugest trying I would be gratefull.

 

[imported_Dok]

This thread heled me a lot, thanks everyone!
Brad

 

[pmv]

Is it possible that an O/Ced cpu could make errors in calculations but not actually fall over? I'm sure I remember reading a story about 10 years ago where some academic found an O/Ced cpu in the lab was making one very specific and subtle error in its calculations while not actually causing a crash. I seem to remember it was reported as being of concern for projects like Seti at home, that some of it could be running on OC hardware and thus get something wrong or miss something and nobody would be any the wiser.

Having said that, I'm not sure how Intel know that correctly clocked processors don't make mistakes. How does their testing compare to the kind of things discussed in this thread? Presumably they have a much more rigorous exhaustive kind of test? Though there was that infamous bug in the original Pentium, was there not?

(I don't need to overclock my PC, though, I just think more slowly, then the PC appears much faster.)

 

[jadeiceman]

Hi, I'm new here, but have been reading your forums a lot. I have a question, what does it usually mean when my computer freezes after about 6 hrs of Prime95 Blend? I checked my RAM with Memtest86+ and the temps looked ok according to RealTemp. Thanks in advance.

 

[TridenT]

Why use two Orthos? StressPrime 2004 ORTHOS v0.41.110.18 (BETA) I believe uses all the cores in just one program. No need for more than one. It's the first link in Google, Orthos...

 

[babadu]

Please help me make sense of the following results from SP2004 and Prim95 (latest versions)


Type: Blend - stress CPU and RAM Min: 8 Max: 4096 InPlace: No Mem: 1791 Time: 15
CPU: 2767MHz FSB: 200MHz [212MHz x 13.0 est.] <<<my correct setting is 230x12
CPU: 2767MHz FSB: 200MHz [212MHz x 13.0 est.] <<<my correct setting is 230x12
7/30/2008 8:52 PM
Launching 2 threads...
Using CPU #0
Beginning a continuous self-test to check your computer.
Press Stop to end this test.
Test 1, 4000 Lucas-Lehmer iterations of M19922945 using 1024K FFT length.
Test 2, 4000 Lucas-Lehmer iterations of M19922943 using 1024K FFT length.
Test 3, 4000 Lucas-Lehmer iterations of M19374367 using 1024K FFT length.
Test 4, 4000 Lucas-Lehmer iterations of M19174369 using 1024K FFT length.
Test 5, 4000 Lucas-Lehmer iterations of M18874369 using 1024K FFT length.
Self-test 1024K passed!
Test 1, 800000 Lucas-Lehmer iterations of M172031 using 8K FFT length.
Test 2, 800000 Lucas-Lehmer iterations of M163839 using 8K FFT length.
Test 3, 800000 Lucas-Lehmer iterations of M159745 using 8K FFT length.
Test 4, 800000 Lucas-Lehmer iterations of M157695 using 8K FFT length.
Test 5, 800000 Lucas-Lehmer iterations of M155649 using 8K FFT length.
Self-test 8K passed!
Test 1, 560000 Lucas-Lehmer iterations of M212991 using 10K FFT length.
Test 2, 560000 Lucas-Lehmer iterations of M210415 using 10K FFT length.
Test 3, 560000 Lucas-Lehmer iterations of M208897 using 10K FFT length.
Test 4, 560000 Lucas-Lehmer iterations of M204799 using 10K FFT length.
Test 5, 560000 Lucas-Lehmer iterations of M200705 using 10K FFT length.
Test 6, 560000 Lucas-Lehmer iterations of M196607 using 10K FFT length.
Self-test 10K passed!
Test 1, 4500 Lucas-Lehmer iterations of M17432577 using 896K FFT length.
Test 2, 4500 Lucas-Lehmer iterations of M17432575 using 896K FFT length.
Test 3, 4500 Lucas-Lehmer iterations of M17115073 using 896K FFT length.
Test 4, 4500 Lucas-Lehmer iterations of M16815071 using 896K FFT length.
Test 5, 4500 Lucas-Lehmer iterations of M16515073 using 896K FFT length.
Self-test 896K passed!
Test 1, 5300 Lucas-Lehmer iterations of M14942209 using 768K FFT length.
Test 2, 5300 Lucas-Lehmer iterations of M14942207 using 768K FFT length.
Torture Test ran 1 hours, 13 minutes 46 seconds - 0 errors, 0 warnings.
Execution halted.




<<<Using CPU #1
Beginning a continuous self-test to check your computer.
Press Stop to end this test.
Test 1, 4000 Lucas-Lehmer iterations of M19922945 using 1024K FFT length.
Test 2, 4000 Lucas-Lehmer iterations of M19922943 using 1024K FFT length.
Test 3, 4000 Lucas-Lehmer iterations of M19374367 using 1024K FFT length.
Test 4, 4000 Lucas-Lehmer iterations of M19174369 using 1024K FFT length.
Test 5, 4000 Lucas-Lehmer iterations of M18874369 using 1024K FFT length.
Self-test 1024K passed!
Test 1, 800000 Lucas-Lehmer iterations of M172031 using 8K FFT length.
Test 2, 800000 Lucas-Lehmer iterations of M163839 using 8K FFT length.
Test 3, 800000 Lucas-Lehmer iterations of M159745 using 8K FFT length.
Test 4, 800000 Lucas-Lehmer iterations of M157695 using 8K FFT length.
Test 5, 800000 Lucas-Lehmer iterations of M155649 using 8K FFT length.
Self-test 8K passed!
Test 1, 560000 Lucas-Lehmer iterations of M212991 using 10K FFT length.
Test 2, 560000 Lucas-Lehmer iterations of M210415 using 10K FFT length.
Test 3, 560000 Lucas-Lehmer iterations of M208897 using 10K FFT length.
Test 4, 560000 Lucas-Lehmer iterations of M204799 using 10K FFT length.
Test 5, 560000 Lucas-Lehmer iterations of M200705 using 10K FFT length.
Test 6, 560000 Lucas-Lehmer iterations of M196607 using 10K FFT length.
Self-test 10K passed!
Test 1, 4500 Lucas-Lehmer iterations of M17432577 using 896K FFT length.
Test 2, 4500 Lucas-Lehmer iterations of M17432575 using 896K FFT length.
Test 3, 4500 Lucas-Lehmer iterations of M17115073 using 896K FFT length.
Test 4, 4500 Lucas-Lehmer iterations of M16815071 using 896K FFT length.
Test 5, 4500 Lucas-Lehmer iterations of M16515073 using 896K FFT length.
Self-test 896K passed!
Test 1, 5300 Lucas-Lehmer iterations of M14942209 using 768K FFT length.
Test 2, 5300 Lucas-Lehmer iterations of M14942207 using 768K FFT length.
FATAL ERROR: Rounding was 0.5, expected less than 0.4
Hardware failure detected, consult stress.txt file.
Torture Test ran 1 hours, 13 minutes 46 seconds - 1 errors, 0 warnings.
Execution halted.

it seems that one core is failing, any idea y?

http://img411.imageshack.us/my...age=systemspecszg0.jpg

Disregard the above message,
system passed 15hr of sp2004 after increasing vcore to 1.50v

 

[godfodder]

i don't mean to be a bother, but i have recently stumbled upon SP2004 as i was hoping to find out if either my 2 new 1gb ram sticks are bad, or if it's my cpu since i have been getting random restarts.... i just don't understand the results. perhaps someone could point me in the right direction to decipher this?

thanks in advance.

Type: Blend - stress CPU and RAM Min: 8 Max: 4096 InPlace: No Mem: 1759 Time: 15
CPU: 2002MHz FSB: 167MHz [166MHz x 12.0 est.]
9/15/2008 7:54 PM Beginning a continuous self-test to check your computer.
Press Stop to end this test.
Test 1, 4000 Lucas-Lehmer iterations of M19922945 using 1024K FFT length.
Type: Blend - stress CPU and RAM Min: 8 Max: 4096 InPlace: No Mem: 1759 Time: 15
CPU: 2002MHz FSB: 167MHz [166MHz x 12.0 est.]
9/15/2008 7:54 PM Beginning a continuous self-test to check your computer.
Press Stop to end this test.
Test 1, 4000 Lucas-Lehmer iterations of M19922945 using 1024K FFT length.
Test 2, 4000 Lucas-Lehmer iterations of M19922943 using 1024K FFT length.
Test 3, 4000 Lucas-Lehmer iterations of M19374367 using 1024K FFT length.
Self-test 1024K passed!
Test 1, 800000 Lucas-Lehmer iterations of M172031 using 8K FFT length.
Test 2, 800000 Lucas-Lehmer iterations of M163839 using 8K FFT length.
Test 3, 800000 Lucas-Lehmer iterations of M159745 using 8K FFT length.
Self-test 8K passed!
Test 1, 560000 Lucas-Lehmer iterations of M212991 using 10K FFT length.
Test 2, 560000 Lucas-Lehmer iterations of M210415 using 10K FFT length.
Test 3, 560000 Lucas-Lehmer iterations of M208897 using 10K FFT length.
Self-test 10K passed!
Test 1, 4500 Lucas-Lehmer iterations of M17432577 using 896K FFT length.
Test 2, 4500 Lucas-Lehmer iterations of M17432575 using 896K FFT length.
Test 3, 4500 Lucas-Lehmer iterations of M17115073 using 896K FFT length.
FATAL ERROR: Rounding was 0.4999990463, expected less than 0.4
Hardware failure detected, consult stress.txt file.
Torture Test ran 1 hours, 17 minutes 50 seconds - 1 errors, 0 warnings.
Execution halted.

 

[Drsignguy]

Originally posted by: godfodder
i don't mean to be a bother, but i have recently stumbled upon SP2004 as i was hoping to find out if either my 2 new 1gb ram sticks are bad, or if it's my cpu since i have been getting random restarts.... i just don't understand the results. perhaps someone could point me in the right direction to decipher this?

thanks in advance.

Type: Blend - stress CPU and RAM Min: 8 Max: 4096 InPlace: No Mem: 1759 Time: 15
CPU: 2002MHz FSB: 167MHz [166MHz x 12.0 est.]
9/15/2008 7:54 PM Beginning a continuous self-test to check your computer.
Press Stop to end this test.
Test 1, 4000 Lucas-Lehmer iterations of M19922945 using 1024K FFT length.
Type: Blend - stress CPU and RAM Min: 8 Max: 4096 InPlace: No Mem: 1759 Time: 15
CPU: 2002MHz FSB: 167MHz [166MHz x 12.0 est.]
9/15/2008 7:54 PM Beginning a continuous self-test to check your computer.
Press Stop to end this test.
Test 1, 4000 Lucas-Lehmer iterations of M19922945 using 1024K FFT length.
Test 2, 4000 Lucas-Lehmer iterations of M19922943 using 1024K FFT length.
Test 3, 4000 Lucas-Lehmer iterations of M19374367 using 1024K FFT length.
Self-test 1024K passed!
Test 1, 800000 Lucas-Lehmer iterations of M172031 using 8K FFT length.
Test 2, 800000 Lucas-Lehmer iterations of M163839 using 8K FFT length.
Test 3, 800000 Lucas-Lehmer iterations of M159745 using 8K FFT length.
Self-test 8K passed!
Test 1, 560000 Lucas-Lehmer iterations of M212991 using 10K FFT length.
Test 2, 560000 Lucas-Lehmer iterations of M210415 using 10K FFT length.
Test 3, 560000 Lucas-Lehmer iterations of M208897 using 10K FFT length.
Self-test 10K passed!
Test 1, 4500 Lucas-Lehmer iterations of M17432577 using 896K FFT length.
Test 2, 4500 Lucas-Lehmer iterations of M17432575 using 896K FFT length.
Test 3, 4500 Lucas-Lehmer iterations of M17115073 using 896K FFT length.
FATAL ERROR: Rounding was 0.4999990463, expected less than 0.4
Hardware failure detected, consult stress.txt file.
Torture Test ran 1 hours, 17 minutes 50 seconds - 1 errors, 0 warnings.
Execution halted.

A few things to consider, Are you overclocking your cpu, and if so, what is your chip and its VID. Need some more details from you. Also, what is your ram, default voltage of your ram and default ram timings.

Just to assume if you are over clocking, voltage bump is probably required and just to be clear, take your ram out of the OC equation and set it to 1:1 ratio.

If all this seems a bit complicated, read the other sticky(s) at the top of this forum. There is some great info in there.

 

[godfodder]

i am not OCing my cpu, but i was trying to work out why i was getting the random restarting. since that post i reckon i have worked it out. when i ran memtest on each stick individually for about 200 passes, there were no errors. but when put in my pc together, i had problems. after reading up on ram timings, i decided to adventure into the bios and muck around a bit and found that when there was only 1 1gb stick, the settings in bios seemed to be set properly. but when both sticks were installed the pc applied different timing settings. something like 3-4-3. so i changed it to 3-3-3 and since then i have had no crashes

truth be told, i just got a new video card and would like to start goofing around with some of this OCing to see what my old box can do

AMD sempron 2800+ (Thoroughbred)..i don't know what a VID is lol

here is a screenshot of CPU-Z http://i178.photobucket.com/al...w243/godfodder/cpu.png

and my ram is 2x 1gb Hynix DDR3200 200mhz

 

[Drsignguy]

You can download coretemp and it should tell you you vid of your chip. Don't really know for sure if it will work ( it should ) but give it a shot and then you will know, hopefully. And what a differance a generation or 2 makes compaired to voltages. Wow!

 

[godfodder]

thank you very much for you time i'm going to foray into the unknown.....i think i'll be back

 

[Drsignguy]

Not a problem, just haveing fun. Good luck and enjoy the unknown! see you when you return!

 

[godfodder]

well unfortunately, my cpu is not compatible with coretemp. perhaps it's best if i just save up and get a decent rig instead of trying to squeeze so much blood from this one

 

[laptoplt]

Cool write up that many people will find useful .

Thanks for taking the time to write it.

 

[solofly]

Originally posted by: FireChicken
Does the latest version of memtest work well with DDR3? Thanks

I have DDR3 memory which fails memtest86/+ and yet computer is 100% stable. I can Fold(and I do 24/7), run Prime95, play a game, whatever. I'm not so sure memtest86+ is fully compatible with the latest platforms and DDR3...

 

[Mech0z]

Hmm my Prime95 just shuts down nomatter what test I choose when it has run for like 5-15sec :s have tried to redownload it but that aint helping.

Hmm apparently Prime95 can detect that my system is not completely stable as it worked fine when I clocked down :s