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Old 2015-03-16, 22:28   #1
petrw1
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"Wayne"
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Default Bad Factor from PM1

Code:
[Mar 15 0740] Stage 1 complete. 8398835 transforms, 1 modular inverses. Time 5606880.206 ms.
[Mar 15 0740] Using 2901MB of memory in stage 2.
[Mar 15 0741] Stage 2 init complete. 9085 transforms, 1 modular inverses. Time 53467.664 ms.
[Mar 15 0742] Restarting worker with new memory settings.
[Mar 15 0742] Using all-complex FFT length 480K, Pass1=384, Pass2=1280
[Mar 15 0743] ECM on F23 curve #3 with s=5430473789103900, B1=3000000, B2=300000000
[Mar 15 0743] Using 1476MB of memory in stage 2.
[Mar 15 0743] Stage 2 init complete. 5814 transforms, 2 modular inverses. Time 36551.301 ms.
[Mar 15 0743] F23 curve 3 stage 2 at prime 3126713 [0.042%].
[Mar 15 0927] F23 curve 3 stage 2 at prime 12755651 [3.284%]. Time 6210344.143 ms.
[Mar 15 1029] ERROR Bad factor for F23 found 15
[Mar 15 1029] Restarting ECM curve from scratch.
[Mar 15 1029] ECM on F23 curve #3 with s=2648542364898303, B1=3000000, B2=300000000
[Mar 15 1202] F23 curve 3 stage 1 at prime 44983 [1.499%]. Time 5600608.008 ms.
This PC has been rebooting almost every day from unexpected errors causing shutdowns.... I suspect may have a fried CPU or MB.

We were gone for 3 weeks and I left the house sitter explicit instruction to NOT close the Computer Room door.
Well apparently her 8-yr-old closed it and she didn't notice.
When I got home the room was at 32 degrees Celcius (90'ish Fahr...) and all the fans were running full speed. (I have 4 computers in this room; 1 with a GPU).

Since then 1 PC (has been crashing and rebooting a few times a week.

After one of the restarts the iteration times for 1 of 4 cores went from 27 to 1800 Ms until I noticed.
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Old 2015-03-17, 01:22   #2
TheMawn
 
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Quote:
Originally Posted by petrw1 View Post
After one of the restarts the iteration times for 1 of 4 cores went from 27 to 1800 Ms until I noticed.
HOW-LEE SHEE-AT! 27 to 1800 megaseconds?


All jokes aside, have you put any work into the sketchy machine? If the fans are running faster they are also slurping in more dust meaning worse cooling. It's a very slippery slope... If the machine is overclocked, bring it down a few notches. Try bringing it down a bit even if it's stock.
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Old 2015-03-17, 15:12   #3
petrw1
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Quote:
Originally Posted by TheMawn View Post
HOW-LEE SHEE-AT! 27 to 1800 megaseconds?


All jokes aside, have you put any work into the sketchy machine? If the fans are running faster they are also slurping in more dust meaning worse cooling. It's a very slippery slope... If the machine is overclocked, bring it down a few notches. Try bringing it down a bit even if it's stock.
Prime95 is not "stopping Unexpectedly" a few times a day.
Throw in a couple "could not address memory errors"
etc
etc

Time for a PC Doctor.
Sadly this is the PC with the GPU so every second it is in the shop the GPU is not running.
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Old 2015-03-17, 17:35   #4
kladner
 
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Have you reseated the memory? Thermal stress could make things loosen up.
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Old 2015-03-18, 22:24   #5
petrw1
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Check Disk...clean
CoreTemps never over 70c

I'll check the other things on the weekend

Thx
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Old 2015-03-20, 04:30   #6
petrw1
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Looking like RAM.....

I switched 2 cores from ECM-Fermat (high memory in phase 2) to all DC work (low memory).

PrimeNet has not crashed in 5 hours (recently it often crashed even before it finished starting all the workers)
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Old 2015-03-20, 05:42   #7
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Run memtest86+.
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Old 2015-03-20, 14:30   #8
petrw1
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Quote:
Originally Posted by TheMawn View Post
Run memtest86+.
Thanks....my next task was going to try to find Memory Test software
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Old 2015-03-20, 14:49   #9
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Quote:
Originally Posted by petrw1 View Post
Thanks....my next task was going to try to find Memory Test software
It's best to let memtest86+ run for several hours, too, to get a couple of complete cycles.
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Old 2015-03-20, 14:57   #10
petrw1
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Quote:
Originally Posted by kladner View Post
Have you reseated the memory? Thermal stress could make things loosen up.
"Reseated"?

a. Push it down to make sure it is in place?
OR
b. Pull it up and then push it all the way back in place?
OR
c. Other: Please explain ______________________________



Hmmmm......sounds like a High School test.
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Old 2015-03-20, 14:58   #11
petrw1
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Quote:
Originally Posted by Mark Rose View Post
It's best to let memtest86+ run for several hours, too, to get a couple of complete cycles.
When I start up Prime95 with ECM Stage 2 work it takes from seconds to minutes to fail.....

But I understand letting memtest86+ test ALL the memory thoroughly.
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