Bad temp??

wdEvA · 28 Oct 2007 at 05:44

I've just overclocked my E4400 to 3.0ghz on 1.375v, cant seem to get it stable any lower than 1.375v, though cpu-z only reads 1.296v

i'm using a thermalright 120 Ultra with a normal 120mm fan on it.

temps are kinda bad at around 59-65C at load on prime95 v25.4

i've tested without the fan, and touching the heatsink during prime, and it only feels slightly warm at 75C as show on coretemp 0.95.4

So could it be a contact problem? i've heard that thermalright's mounting mechanism isnt any good, but there are ways to mod it to get better contact right?

also to note, i've lapped the base till its copper with a nice smooth reflection.

jabski · 28 Oct 2007 at 05:54

you could use different screws to the spring loaded ones for mounting the ultra 120. There for apllying more pressure. Are they fully tightened ??

wdEvA · 28 Oct 2007 at 06:28

yup, there are fully tightened.

what kind of screws can i get?

btw what kind of temp should i be getting?

Big.Wayne · 28 Oct 2007 at 06:55

Stick with the screws that came with the heatsink, it sounds like the Thermalright isn't making great contact with the CPU due to either the heatsink base being concaved/convexed or the CPU lid (IHS) being wonky.

I had a similar situation to you but I have since lapped both my Ultra-120 and CPU. The base of the Ultra-120 was totally concaved. . .

This is a mockup of how the base of my heatsink looked while I was lapping it, took a few mins to get it an even copper, however the results were worth the effort

Full Orthos Load, before and after. . .

wdEvA · 28 Oct 2007 at 09:46

i've lapped the heatsink nicely, but lapping the IHS will not be one of the solution that i'm looking into, as i wont want to void the warranty just yet,(still quite a new chip though)

I remounted the heatsink again, and this time it seems to fit tightly. and temp does improve 1-2C,

what kind of temp should i be expecting, or it's just a hot chip that i have?

whats the highest safe temp that i can have for the chip?