My first computer build.
Antec 300 case
Gigabyte GA p55A-UD3 MB
Antec EA650 power supply
HIS H467QR1GH Radeon HD 4670 1GB 128-bit DDR3 Video Card
8 GB G.SKILL 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600
Put together and booted fine first time. Been installing drivers and other software but no real use yet. Had it on ~10 times for at least 1 hr. for one session over the past week.
Just checked temp of cpu from Bios and it started at ~70C and went up to 90C as I was watching (idle)!!!. I used the stock cooling fan and the stock thermal compound attached to Heat Sink. I just double checked heat sink and it was firm on the cpu- could not wiggle it. I used the 8 prong power line (EPS12V v2.91 according to Antec) to power the cpu on the mother board (label 12V 2 x 4 ATX according to Gigabyte).
Should I have used the 4 prong 12V ATX connector. Could the BIOS CPU temp sensor be that off?
Any other suggestions. Will I fry the cpu if I continue to use?
No if the motherboard and CPU requires the EPS plug than you use it (though the old 4-pin P4 would work as well). Even basic thermal compound shouldn't allow the CPU to go that high in temps, have you tried re-applying it?
The thermal compound was in strips attached to the heat sink. I have a tube of artic silver that is probably 5 years old. I guess I should remove the heat sink, clean the heat sink and cpu surface with isopropanol and apply the artic silver and try again?
Yeah the alcohol should be fine. If the new paste doesn't work I would begin looking for a new BIOS for the mobo and other programs to looks at the temps to see if it's really that high. GPUs can go that high but not CPUs.
There's no need to remove your cpu just clean it with the alcohol and perhaps a coffee filter.
Don't apply too much paste a pea sized blob should do and the heatsink should apply adequate pressure to spread the paste.