[轉貼]原來Ivy過熱, 終究是內部散熱膏在搞鬼?

日本原文連結 : http://pc.watch.impress.co.jp/docs/column/sebuncha/20120511_532119.html

Techpowerup外文翻譯報導 : http://www.techpowerup.com/165882/TIM-is-Behind-Ivy-Bridge-Temperatures-After-All.html


It's proven: the thermal interface material (TIM) used by Intel, inside the integrated heatspreader (IHS) of its Core "Ivy Bridge" processors are behind its higher than expected load temperatures. This assertion was first made in late-April by an Overclockers.com report, and was recently put to test by Japanese tech portal PC Watch, in which an investigator carefully removed the IHS of a Core i7-3770K processor, removed the included TIM and binding grease, and replaced them with a pair of aftermarket performance TIMs, such as OCZ Freeze and Coolaboratory Liquid Pro.

PC Watch findings show that swapping the TIM, if done right, can shave stock clock (3.5 GHz, Auto voltage) temperatures by as much as 18% (lowest temperatures by the Coolaboratory TIM), and 4.00 GHz @ 1.2V temperatures by as much as 23% (again, lowest temperatures on the Coolaboratory TIM). The change in TIM was also change the overclockability of the chip, which was then able to sustain higher core voltages to facilitate higher core clock speeds. The report concluded that Intel's decision to use thermal paste inside the IHS of its Ivy Bridge chips, instead of fluxless solder, poses a very real impact on temperatures and overclockability.


大約意思是, Intel低估了內部核心溫度, 錯用了散熱膏.
之前四月底的時候Overclockers.com已經斷言是因為這個原因造成溫度無法快速至鐵蓋, 現在經由日本的PC Watch網站實驗再次得到證實, 實驗中使用了Liquird PRO(液態金屬) / OCZ freeze (效能不錯的散熱膏)

日本PC Watch開蓋後換上兩種散熱膏並宣稱假如手法正確, 預設電壓溫度可以低18% (Liquid PRO). 超頻至4G @ 1.2v溫差更達到23% (依然是Liquid PRO).
更換散熱膏之後更能讓高壓超頻的穩定性大增, 反正就是燒不過的全穩定啦......

開殼後溫差表


更換散熱膏後高壓穩定度一覽表