New E8400 and Big Typhoon VX running hot

keyser

keyser

keyser

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New E8400 and Big Typhoon running hot

Yay another E8400 overclocking thread :)

I just upgraded from 939 to E8400, P5Q Pro, 4GB G.Skill and Big Typhoon (non-VX), but finding that my temps are 'a bit hot', or the CPU I got just isnt a great overclocker. Its 45nm E8400 so should get to 4GHz without too much trouble?

I've got it to 3700Ghz but temps reading in speedfan: core 68, cpu 61 :eek:. Real Temp says the same 68 and 'distance to TJ Max' of 32 which means distance to heat death? :)

I'm wondering if I installed the heatsink correctly.. I did reseat it yesterday (which means taking the whole mobo out). First time I did the rice sized blob of paste method, when I came to reseat it only the corners werent fully covered. Now I've done the credit card scrape thin layer of paste method and still get the same temps.

How tight should the bolts be screwed down on this monster heatsink? Maybe I put the cushion and the insulator back plate on the wrong way round :rolleyes: at the moment the harder insulator is against the mobo, then the cushion inbetween the backplate.

edit: yeah after reading the instructions again i'm gonna reorder the cushion and insulator
 
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The backplate is now on properly and I tightened the screws until I feel any more could damage the mobo. How tight can Big Typhoon VX screws go? :)

I have the cpu at 1.2v, idle case temp is 29c, idle cpu 29, load 67 now, case temp when under load 33c.

Does Real Temp and speedfan give accurate temps on the p5q pro?
 
It seems stable enough. Well I've run orthos for 10 mins about 5 times now. I'm not sure about other monitoring progs, what others are there?
 
I've got up to 4ghz now by lowering cpu volts and increasing fsb. cpu is at 1.16v in bios. 9 hours orthos stable. Temp gets to 67. Ram at 890Mhz, but it wasn't working at 1066 anyway. I might try lowering cpu volt a notch, but I'm happy its stable.
 
heh yeah that's what I thought, but based on temps I can only guess that the bios is lying :) I went up in 100MHz steps each time, when it got to 4100MHz windows failed to load, so went to 4ghz ! Good job I only started with 1.2v on cpu! thinking it would go up, not down :) Next I wanna test even lower volts and enabling speedstep.
 
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Is it acutally stable when stressed with orthos or prime95 though for longer than 10mins?

I have found a lot of the errors i get happen within an hour or so, though can take a bit longer.
 
Yeah I left Orthos running overnight for 9 hours. It's a bit warm (67c) but far from the dodgy 75c people talk of. Running defrag atm, I'll note the exact bios volts on next reboot. cpuz reports either 1.136 or 1.144.

bios vcore 1.15625, speedstep now enabled.
 
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