core2duo core temperatures

[CALiFORNiA DREAMiN]

i have a core2duo e8500 running at stock speeds.

today i installed a xigmatek 1283 heatsink.

i used speedfan & coretemp to check the temperatures after and these were the results

SPEEDFAN
Core0: 39C
Core1: 28C

CoreTemp
Core0: 44C
Core1: 33C

these temps are when the comp is just sitting idle in vista.

i find it strange that there is an 11C temp difference between the two cores. i'm using the backplate mounting bracket for the xigmatek and have made sure that the heatsink is mounted evenly.

before this xigmatek, i was using the stock intel heatsink and i had a temp difference of approx 10C between the two cores and Core0 was around 52C and Core1 was aruond 42C at idle. so using the xigmatek dropped the temps by 10C but the difference between the two cores still exist.

looking at this pic of the core2duo, the cores are split vertically right? with left being core0 and right being core1?

http://bp0.blogger.com/_veswGS...M/s1600-h/core2duo.png

 

[LOUISSSSS]

are you tightening your bolts in a star shaped pattern?

 

[CALiFORNiA DREAMiN]

yeah ..

1 2
3 4

i did 1 first, then 4, then 2, then 3 ...

 

[LOUISSSSS]

did u apply an even amt of thermal paste? are you tightening each bolt one 360 degree circle at a time to ensure they are tightening at an even rate?

if all the above is yes, then u can either: 1. live with it (its 100% fine, unless the hottest core is overheating) or 2. lap the base of the CPU cooler and try again. 3. lap both the cpu cooler and the IHS of the CPU

 

[BonzaiDuck]

LOUISSSSS says it all correctly.

I confirmed this last year, with a 7C spread under load dropping to a 3C range between the cores. At least, with what I observed myself, you stand a good chance of doing two things: lapping both surfaces to BARE COPPER can net you as much as 10C drop in temperatures, and it may reduce the difference between the core temperatures.

This -- even if there is nothing wrong with the Xigmatek mounting job.

 

[CALiFORNiA DREAMiN]

what i did was put a small line vertical line of MX-2 on the centre of the heatspreader. then i put a small amount of MX-2 to cover the space between the heatpipes and bottom mounting surface. and then 2 small lines on the bottom of the mounting surfacelike shown here.
http://benchmarkreviews.com/im...lication_Two_Lines.jpg

at what temperature would the cpu be at risk of damage. high 60s ?