Hello!
Shortly before Christmas I put my computer in sleep mode only to return from work with all lights out in my home. Apparently my computer made some sort of short that seemed to cause a fuse in my appartment to blow.
Turning on all electricity again made my computer go back to sleep mode (off/orange light on power button). But the computer wouldn't turn on again. Cutting power to the PSU and retrying only turns the fans shortly and the computer does not react or start up.
Now, the system is old (2007) but has been continously upgraded. My PSU, however, is 10 years old and I bought a new one figuring that was the problem. But nothing changed. I have just tried another new PSU/different brand to no avail (700 watts and 600 watts). The current system setup requires around 500 watts of peak power.
I then started changing everything. First the mobo, then the CPU, then swapped all RAM (and also tried without RAM), changed the CPU-cooler, reseated all devices and trying numerous scenarios. I have also tried removing the battery and clearing CMOS. In all cases the graphics card has been disconnected.
The result is the same but I learned that the system will turn on, when the 4-pin CPU-power cable is disconnected. This works in all scenarios but naturally the computer won't boot. Remember, I changed the mobo (a used but working one) and it seems unlikely that this board would have a short circuit as well. I examined both boards with a magnifying glass for bloated capacitators and other signs of shorts etc. Nothing.
I think I have tried all scenarios besides changing computer case.
I'm running out of cooling paste for the CPU but did notice, that not all connections on the CPU have "holes" in them indicating that the pins on the mobo is not connected to all receivers on the CPU. But they never have since this CPU has been in there for 15 years (there would be marks on these seemingly unused receivers).
I have cleaned the computer case at least once a year with new cooling paste but without reseating the CPU. This should keep the pins intact.
Any ideas besides buying a new computer? Anybody solved a similar issue (and I did search Google and tried many of those suggestions)?
Specs:
Søren
Shortly before Christmas I put my computer in sleep mode only to return from work with all lights out in my home. Apparently my computer made some sort of short that seemed to cause a fuse in my appartment to blow.
Turning on all electricity again made my computer go back to sleep mode (off/orange light on power button). But the computer wouldn't turn on again. Cutting power to the PSU and retrying only turns the fans shortly and the computer does not react or start up.
Now, the system is old (2007) but has been continously upgraded. My PSU, however, is 10 years old and I bought a new one figuring that was the problem. But nothing changed. I have just tried another new PSU/different brand to no avail (700 watts and 600 watts). The current system setup requires around 500 watts of peak power.
I then started changing everything. First the mobo, then the CPU, then swapped all RAM (and also tried without RAM), changed the CPU-cooler, reseated all devices and trying numerous scenarios. I have also tried removing the battery and clearing CMOS. In all cases the graphics card has been disconnected.
The result is the same but I learned that the system will turn on, when the 4-pin CPU-power cable is disconnected. This works in all scenarios but naturally the computer won't boot. Remember, I changed the mobo (a used but working one) and it seems unlikely that this board would have a short circuit as well. I examined both boards with a magnifying glass for bloated capacitators and other signs of shorts etc. Nothing.
I think I have tried all scenarios besides changing computer case.
I'm running out of cooling paste for the CPU but did notice, that not all connections on the CPU have "holes" in them indicating that the pins on the mobo is not connected to all receivers on the CPU. But they never have since this CPU has been in there for 15 years (there would be marks on these seemingly unused receivers).
I have cleaned the computer case at least once a year with new cooling paste but without reseating the CPU. This should keep the pins intact.
Any ideas besides buying a new computer? Anybody solved a similar issue (and I did search Google and tried many of those suggestions)?
Specs:
- HP m9067SCA (2007)
- IPIBL-LB motherboard (LGA 775) - changed from native IPIBL-LA a while back because of bloated capacitators
- Intel Q6600 CPU (have two of those and two Q8200's)
- 8 GB RAM (4x2 GB Kingston DDR2 800 Mhz)
- Samsung 840 EVO SSD 250 GB (system only)
- MSI GTX960 2GB GPU (8 pins aux power) - disconnected
- Chieftec 650 watts PSU (80 bronze)
Søren
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