Parts
Pentium G3258 stock clocked
Asrock B85M Pro3
2x 4GB crucial RAM
CPU cooler hyper 212 evo
When my PC got really slow (couldn't drag windows smoothly) I did a restart which worked fine but again everything really slow, cpu usage was 3%-10% (normal idle usage). So I shut down the machine and opened it up. The cooler was really hot (burned myself when touching it). So I figured the fan might be broken which caused the cpu to overheat and thermal throttle. But that's pretty weird considering the rather big cooler, the low TDP of the CPU and that I was using it in idle only.
I let the PC cool down and tried to restart it while watching the fan. The fan turned on normally and the heatsink warmed up a little (not much more than 30°C I'd say), but I didn't get a display signal this time. Again weird considering it worked fine while overheating and thermal throttling.
I went through the checklist you guys usually post on this forum. Checked all PSU voltages with my multimeter including the grey power OK wire -> fine
I tried removing one RAM stick at a time and different slots. I don't get any beeps even with all RAM sticks removed.
I'm not using a dedicated graphics card.
The LAN LEDs stay off even though my switch detects a link.
If I unplug the CPU's 4pin power connector the fans start spinning for a second and turn off, so the CPU seems to be detected by the motherboard, because with the 4PIN plugged in the fans spin normally.
There is no visible damage on the motherboard. There are three bricks next to the CPU though which get really hot when I turn on the machine (too hot to touch after just 10sec, normal?). As far as I know these are responsible for voltage regulation for the CPU. So maybe they are broken and overvoltaged the CPU which caused it to burn. But then again haswell have their voltage regulation on chip afaik.
I ordered new CPU+motherboard+RAM since I wanted to build a second machine anyways.
Why did the PC break AFTER I let it cool down instead of while it was overheating? Why does the CPU stay relatively cool now? Is it normal for the voltage regulation to get that hot even though the CPU draws little power (CPU heatsink stays cool)
I'm scared that if the voltage regulation on this motherboard is broken and I put a new CPU in I might fry that one aswell. Should I put the old CPU in the new motherboard instead?
Pentium G3258 stock clocked
Asrock B85M Pro3
2x 4GB crucial RAM
CPU cooler hyper 212 evo
When my PC got really slow (couldn't drag windows smoothly) I did a restart which worked fine but again everything really slow, cpu usage was 3%-10% (normal idle usage). So I shut down the machine and opened it up. The cooler was really hot (burned myself when touching it). So I figured the fan might be broken which caused the cpu to overheat and thermal throttle. But that's pretty weird considering the rather big cooler, the low TDP of the CPU and that I was using it in idle only.
I let the PC cool down and tried to restart it while watching the fan. The fan turned on normally and the heatsink warmed up a little (not much more than 30°C I'd say), but I didn't get a display signal this time. Again weird considering it worked fine while overheating and thermal throttling.
I went through the checklist you guys usually post on this forum. Checked all PSU voltages with my multimeter including the grey power OK wire -> fine
I tried removing one RAM stick at a time and different slots. I don't get any beeps even with all RAM sticks removed.
I'm not using a dedicated graphics card.
The LAN LEDs stay off even though my switch detects a link.
If I unplug the CPU's 4pin power connector the fans start spinning for a second and turn off, so the CPU seems to be detected by the motherboard, because with the 4PIN plugged in the fans spin normally.
There is no visible damage on the motherboard. There are three bricks next to the CPU though which get really hot when I turn on the machine (too hot to touch after just 10sec, normal?). As far as I know these are responsible for voltage regulation for the CPU. So maybe they are broken and overvoltaged the CPU which caused it to burn. But then again haswell have their voltage regulation on chip afaik.
I ordered new CPU+motherboard+RAM since I wanted to build a second machine anyways.
Why did the PC break AFTER I let it cool down instead of while it was overheating? Why does the CPU stay relatively cool now? Is it normal for the voltage regulation to get that hot even though the CPU draws little power (CPU heatsink stays cool)
I'm scared that if the voltage regulation on this motherboard is broken and I put a new CPU in I might fry that one aswell. Should I put the old CPU in the new motherboard instead?
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