CPU/Mobo Computer shutting down

Status
Not open for further replies.
T

TechHead

Galvanizer
Had this problem when I had a 9800Pro too. ANyway, installed the new 6600GT, anytime I do anything to stress the CPU, eg. encoding a DivX, running DVDShrink or playing a game, the CPU usage shoots to 100%, the app runs for a while and then the CPU and HDD LEDs both light up for 5-7 seconds, and the machine just shuts down.

Same symptoms when I had the 9800Pro, but that was faulty for sure. What could be the cause of this? Overheating CPU? Dirty CPU HSF unit? Or is there some other component leading to this? PSU is a 2 month old VIP 400W. RAM is 768MB D43, Memtest stable for 8 hours. Prime95 actually runs fine as well.. leading me to think this isn't a CPU problem. But why does the CPU usage shoot to 100% just before shutdown then?
 
nope thats not high enough to cause it to shutdown .. try cpu burn and see if it still shuts down. also are you using any splitters of any sort for your psu connectors ? i remember mask or someone used some cheap molex splitters and caused issues with the pc

edit:

after your edit, i think 63 idle is way too high. try reseating the cpu heatsink

...
 
@bottle - I would have thought that 63C idle is quite high as CPU's tend to run into problems from 70C+ .....
@TechHead - redo the thermal compund - sometimes I have seen that AS seems to evaporate off the contact area of CPU/HS possibly caused by heat.... it looks like an explosion took place between these 2 and the centre is abs clean with all the compound spread out outside the CPU area.
 
Last edited by a moderator:
Eazy said:
@bottle - I would have thought that 63C idle is quite high as CPU's tend to run into problems from 70C+ .....
@TechHead - redo the thermal compund - sometimes I have seen that AS seems to evaporate off the contact area of CPU/HS possibly caused by heat.... it looks like an explosion took place between these 2 and the centre is abs clean with all the compound spread out outside the CPU area.
Click to expand...

Me leaning toward the heat problem..

1)133*15- 2Ghz(default for my CPU) - shutdowns

2)200*10 - 2Ghz - shutdowns

3)180*10 - 1.8Ghz - no shutdowns

So I think I need to clear out all the dust on the HSF and redo the thermal compound.
 
Last edited by a moderator:
Eazy said:
@bottle - I would have thought that 63C idle is quite high as CPU's tend to run into problems from 70C+ ..... .
Click to expand...

dunno why my edit isnt showing. :S earlier techhead had posted 55 load or something before he edited it

@TechHead, try getting some good thermal compound and reapply as EAZY suggested
 
Last edited by a moderator:
bottle said:
dunno why my edit isnt showing. :S earlier techhead had posted 55 load or something before he edited it
Click to expand...

This is hilarous .... when I posted my earlier message I was replying to your message and whilst I was going to save it I saw your edited message version in the Reply to Thread whilst I was typing so I changed my message to include your edit and when my message was saved your edit was gone ... so I quickly edited my message to change it to match the text in your unedited version.... are you CONFUSED ? ... I am !!!
 
Is there any chance that the CPU fan is flakky ? Maybe stopping and starting due to end of life or bad fan header conx. Keep an eye on CPU fan RPM.
 
TechHead said:
Around 2900rpm according to the BIOS. Is that ok?
Click to expand...

YUP speed looks OK for a HS fan about 80 - 92mm diameter but it should not have dips in speed which could cause your problem. Which CPU HSF are you using ? diameter of fan ?
 
Eazy said:
YUP speed looks OK for a HS fan about 80 - 92mm diameter but it should not have dips in speed which could cause your problem. Which CPU HSF are you using ? diameter of fan ?
Click to expand...

Oops.. sorry for the late reply Eazy. Stock AMD HSF. I took it out, cleaned it up, machine seems to be fine now.Thanks for all the suggestions ;)
 
@bottle - do you think that the speed of 2900rpm mentioned by TecHead for the AMD stock fan is low ?

I would have thought the stock fans ran around 5000rpm - unless it is in an AC room and something like ASUS's QFan is controlling the RPM.
 
Last edited by a moderator:
bottle said:
yeah 5-6k rpm usually , guess some form of thermal control is enabled in the bios
Click to expand...
hey, thats not low.. IIRC the stock HSF on my barton 2500+ wud do 3krpm at the most. And it was very efficient too. i dont know how, but since the legendary T-bred 1700+ the HSFs coupled with AMDs are very silent and efficient. ;)
 
Status
Not open for further replies.
Top Bottom