system powers off randomly...

T

TeleFragger

[H]ard|Gawd
Joined
Nov 10, 2005
Messages
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Ok so I have built the rig in my sig at the bottom... (except that 2x2gb more is in the mail :p)
Went to bed at 1am with the machine up and running...

woke up at 5am and machine was off..
turned it on and installed COD4 while I went to work..
got to work and game installed.... using RDP was installing some other apps but then realized my machine was no longer on... called the wife and she said yes it is off... she turned it on and she went out... I was doing some stuff here and there when I get time as yes I am working...
so at 11:30am (lunchtime) I figured id go and check out a few things... well it is off again....

now I had an issue with the ocz reaper 2x2gb kit... 1 of them kept on bluescreening the machine.... during boot... so I figured out which of the 2 it was.....
I remember being in the bios and everything was set to auto for cpu and memory...
well that would be 1.87v for memory...
while a guy and I were specing out a machine for him... we saw my memory and he said... Boy I dont understand this voltage stuff but your memory is running at 2.2v and this other memory is 1.8v...
It then hit me.... oh geez... is that why the memory is not working right in the system?


so BSOD caused by incorrect (too low of voltage?)

also the memory is supposed to be 5-5-5-18 but in the bios I remember seeing 6-6-6-18 on auto...

am I now at the point where I need to set all this stuff and not let the mobo use auto?

so I need to set my memory to 2.2v and also set 5-5-5 too????

would that also cause random shutdowns?

Thanks guys...
Jeff....
 
I'm a bit confused, but:

1)are you prime 95 stable? if so, which tests. (did you fail the memeory test?)

alternative to 1) are you memtest stable?

2) what are your voltage rails (under load), as per speedfan/etc ?

3) have you even tried cranking your vdimm yet? some memory (like mine) refuses to even run with less than 2v

I'd be more worried about random shutdowns than I would about random bsods or restarts. The latter seems like a memory problem, the former would be more serious (which is why I asked about your voltage rails)
 
thrawn86 said:
I'm a bit confused, but:

1)are you prime 95 stable? if so, which tests. (did you fail the memeory test?)

alternative to 1) are you memtest stable?

2) what are your voltage rails (under load), as per speedfan/etc ?

3) have you even tried cranking your vdimm yet? some memory (like mine) refuses to even run with less than 2v

I'd be more worried about random shutdowns than I would about random bsods or restarts. The latter seems like a memory problem, the former would be more serious (which is why I asked about your voltage rails)
Click to expand...

sorry for the newbish q's to your q's


1. what is prime 95 stable? - I failed out the memory in the sense of with both dimms in.. I get BSOD. With the suspected one that is causing the problem I cant get the machine to even post.

2. I have speedfan installed... but will have to check the voltages later....

3. No I have not tried cranking the vdimm yet... I just noticed that newegg said 2.2v and I remember seeing in my bios 1.87v... so im banking on this as my issues... will be testing later today... when I get home...

I do not get random BSOD or reboots...
what I am getting with both dimms in (either slots 0/2 or 1/3) is the BSOD.. when you power on.. you may only see 2gb of ram or occasionally see 4gb but a BSOD is innevitable before even getting the Vista desktop.......

random reboots are nill also... I am getting a full system shutdown. (This morning I realized that when you install vista it sets the power option to balance and shuts the machine down (hibernate) to which this morning I changed to performance so the machine does not do that.... so I thought I had the power down under control but realize I dont....

~Jeff
 
prime 95 and memtest allow you to isolate areas of your pc to test. ie: running a cpu intensive or memory intensive test in prime95 allows you to isolate instability in those areas.
 
thrawn86 said:
prime 95 and memtest allow you to isolate areas of your pc to test. ie: running a cpu intensive or memory intensive test in prime95 allows you to isolate instability in those areas.
Click to expand...


ohhh gotcha... well if a computer doesnt even boot due to a bad dimm.. how does one test it with software? I cannot get into vista.... 100% a no go into OS with both in... even just that 1 that I feel is bad...

I did go in the bios and set the 5-5-5-18 and T2
plus 2.2V
Also tried 2.175V
2.0V

so think I have a bad dimm
 
You can run memtest without an os, as far as i know try the utimate boot cd (look it up google).
 
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