Crazy i7 temps

[unholygregor]

hi all, im having a bit of a problem with my core i7 920 and i hope you can help me here....
well, i have a core i7 920 with blc @ 150x20=3ghz, its a pretty small overclock, right?
when i run realtemp 3.5 it tells me that my cpu is idling at 55 degrees celcius. this cant be good, right? whats worse is that when i ran a stress test with prime 95 the temps went up to 90-100 degrees! i have a nexus flc 3000 hsf and the cpu voltage it at 1.175. how are my tempps so high? should i lower the voltage or what? do i need a new hsf or is my cpu f**ked up

 

[obsidian86]

the latter would be my guess its a crap cooler

 

[unholygregor]

by the latter you mean my cpu cooler? ah well thats not too bad, its supposed to be a silent cooler and not for o'cing, still tho, seems too hot for such a small ocerclock and an antec 1200 case...

 

[overshocked]

The case doesn't help to much when you have a bad cooler.

Anyways, obsidian is right. It would be ,much much much more effective if you got a cooler like the megahalem (or the not so pricey alternative, the core contact freezer) then replaced the stock fan with a dual ball bearing fan.

It will be incredibly silent and you can overclock much further

 

[rapture7]

The cooler may not be seated properly, fans on low, fans blowing hot air from other components toward CPU, poor fresh airflow toward CPU fan, poor thermal grease. Could be many things, try to eliminate each one and see if it makes a difference, and as the other poster suggested, a better cooler would help.

 

[unholygregor]

ok guys thanks for the help

 

[JackNaylorPE]

My son's box has the Mehahalems with IC Diamond 7 Karat in the Antec 1200 case. Coupla points:

1. Install mega with fans blowing to rear.
2. Don't use a fan w/ more than 1200-1300 rpm or will get very noisy w/o much cooling improvement
3. If you have the optional "case window" fan, a small fan "salami mod" is req'd.....2 minutes w/ a dremel tool.
4. Follow TIM compound install instructions on IC site. http://www.innovationcooling.com/applicationinstructions.htm

Here's a parts list:

(1) http://www.frozencpu.com/products/8807/cpu-pro-01/Prolimatech_Megahalems_Rev_B_Intel_CPU_Heatsink_LGA_775_1156_1366_AM2_AM2_AM3_Hot_Item.html
(1) http://www.frozencpu.com/products/7038/thr-41/Innovation_Cooling_Diamond_7_Carat_Thermal_Compound_-_15_Grams.html
(2) http://www.frozencpu.com/products/10026/fan-639/Scythe_Slip_Stream_120mm_x_25mm_PWM_Fan_-_SY1225SL12LM-P.html?tl=g36c365s936
(1) http://www.frozencpu.com/products/8418/cab-150/FrozenCPU_PMW_Y_Splitter_Cable.html

He has several OC profiles that he uses:

24/365 profile - 3.7 Ghz (177.4 x 21) Temps = 58 / 54 / 55 / 54 under prime95 small FFT's (HT On) - 1.125 volts
Gaming profile - 4.2 Ghz (200 x 21) Temps = 74 / 71 / 70 / 70 under prime95 small FFT's (HT Off) - 1.3 volts
Pushin It - 4.4 Ghz (210 x 21) Temps = 72 / 68 / 67 / 66 under OCCT (HT On) - 1.24 volts

Salami Mod explanation - sry but this is the easiest explanation i could come up with....think of the case door can a salami sandwich on regular white bread.....the round fan housing is salami and bread is the rectangular mounting plate. Open sandwich so you have salami sitting on top of bread on both sides. On ONE of the bread slices (Exhaust side), trim ONE corner of the bread where it's not covered by the salami.....in other words, trim off one corner of the rectangular square down to the round housing. This trimmed corner should be on top when you remount the fan in case window.

 

[unholygregor]

the salami thing is a bit wierd, but thanks for the info

 

[LoneWolf_53]

He has several OC profiles that he uses:

24/365 profile - 3.7 Ghz (177.4 x 21) Temps = 58 / 54 / 55 / 54 under prime95 small FFT's (HT On) - 1.125 volts
Gaming profile - 4.2 Ghz (200 x 21) Temps = 74 / 71 / 70 / 70 under prime95 small FFT's (HT Off) - 1.3 volts
Pushin It - 4.4 Ghz (210 x 21) Temps = 72 / 68 / 67 / 66 under OCCT (HT On) - 1.24 volts

I'm just honestly curious as to why the 4.2Ghz gaming profile at 1.3V with higher temps when it will run 4.4Ghz at 1.24V with lower temps?

Is the 4.4Ghz with the lower voltage not as stable for gaming?

 

[unholygregor]

will a new hsf make that big of a difference or should i just try reseating my current one?

 

[LoneWolf_53]

will a new hsf make that big of a difference or should i just try reseating my current one?

Trying to reseat your current one doesn't cost you anything.

 

[JackNaylorPE]

I'm just honestly curious as to why the 4.2Ghz gaming profile at 1.3V with higher temps when it will run 4.4Ghz at 1.24V with lower temps?

Is the 4.4Ghz with the lower voltage not as stable for gaming?

The 4.4 has a lot of settings changed / tweaked whereas the 4.2 has minimal.

 

[shuayb]

i overclocked my Intel P3 from 500mhz to 20.3Ghz which beats forthcoming intel cpu's. im also using intel stock cooling (2x12mm fans)

 

[Beenerz]

i also have a core i7 i managed to overclock to 3.8ghz with some good thermal greese and buy putting a fresh iceblock on the cpu every 3-5 minutes or so. (hope this helps u )