On Tuesday my computer (6 years old now) decided to turn itself off and refuse to turn back on!
So I stripped it down and turned it on after inserting each component. This worked fine, got everything plugged back in, booted up fully for a few minutes then turned itself off again and refused to turn back on!
About 3 months ago my old power supply failed so I bought an EVGA SuperNova 750W and the computer worked perfectly up until last Tuesday. Just to check my new PSU hadn't died within 3 months I've jump started it and checked the voltages and these are my results for the pins on the 24-pin (also confirmed voltages on every other connector on the PSU)
1. 3.4
2. 3.4
3. 0
4. 5.1
5. 0
6. 5.1
7. 0
8. 0.1
9. 5.18
10. 12.5
11. 12.5
12. 3.4
13. 3.4
14. -12.3
15. (jumped)
16. (jumped)
17. 0
18. 0
19. 0
20. (removed)
21. 5.1
22. 5.1
23. 5.1
24. 0
These tie in pretty much perfectly with the voltages here (http://pcsupport.about.com/od/insidethepc/a/atx-pinout-24-pin-12v-psu.htm and the tolerances here http://pcsupport.about.com/od/insidethepc/a/power-supply-voltage-tolerance.htm). When my old PSU died one of the 12V rails only read about 10V, so I'm confident the PSU hasn't broken again!
My only other thought is that the thermal compound has gone bad (or something else heat related) and is causing it to turn itself off quickly, however there are no warning beeps to indicate high temperature.
I've just ordered a new system from OCUK (OC'ed i5 @ 4.2Ghz, 16gb ram, GTX770, 120GB SSD) with the idea that I'll reuse my other 1TB HDDs from my old PC and my "old" (yet quite new) EVGA PSU, I was due a gaming upgrade anyway!
Anyone have any ideas what could be wrong with my old system? Aside from me stealing the PSU it's almost complete so if I can get it working again for a spare that'd be great!
Also, am I being foolish in using my existing PSU? It cost £80 in December last year so I see no reason why I shouldn't!
Thanks
Rich
So I stripped it down and turned it on after inserting each component. This worked fine, got everything plugged back in, booted up fully for a few minutes then turned itself off again and refused to turn back on!
About 3 months ago my old power supply failed so I bought an EVGA SuperNova 750W and the computer worked perfectly up until last Tuesday. Just to check my new PSU hadn't died within 3 months I've jump started it and checked the voltages and these are my results for the pins on the 24-pin (also confirmed voltages on every other connector on the PSU)
1. 3.4
2. 3.4
3. 0
4. 5.1
5. 0
6. 5.1
7. 0
8. 0.1
9. 5.18
10. 12.5
11. 12.5
12. 3.4
13. 3.4
14. -12.3
15. (jumped)
16. (jumped)
17. 0
18. 0
19. 0
20. (removed)
21. 5.1
22. 5.1
23. 5.1
24. 0
These tie in pretty much perfectly with the voltages here (http://pcsupport.about.com/od/insidethepc/a/atx-pinout-24-pin-12v-psu.htm and the tolerances here http://pcsupport.about.com/od/insidethepc/a/power-supply-voltage-tolerance.htm). When my old PSU died one of the 12V rails only read about 10V, so I'm confident the PSU hasn't broken again!
My only other thought is that the thermal compound has gone bad (or something else heat related) and is causing it to turn itself off quickly, however there are no warning beeps to indicate high temperature.
I've just ordered a new system from OCUK (OC'ed i5 @ 4.2Ghz, 16gb ram, GTX770, 120GB SSD) with the idea that I'll reuse my other 1TB HDDs from my old PC and my "old" (yet quite new) EVGA PSU, I was due a gaming upgrade anyway!
Anyone have any ideas what could be wrong with my old system? Aside from me stealing the PSU it's almost complete so if I can get it working again for a spare that'd be great!
Also, am I being foolish in using my existing PSU? It cost £80 in December last year so I see no reason why I shouldn't!
Thanks
Rich
Last edited:
