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Thread: Couldn't take it any longer - lapped my E6400

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  1. #1
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    Join Date
    Mar 2005
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    81

    Couldn't take it any longer - lapped my E6400

    Got this retail chip last week and put my own paste on it and mounted the stock cooler. I was shocked to find that it only made contact at the edges of the IHS. I tried an old zalman 7000Cu that I know is flat and it was better but still not great. Turns out both the IHS and the stock HS were concave. Pretty f..ing shoddy QC if you ask me.

    Under water at 3.5ghz/1.41v right now w/ both cores priming, core temp was hitting 72c so I decided f. it and pulled the chip to lap it. Turns out the IHS was REALLY BAAAD - using 150 grit paper at first, the entire edge of the IHS showed copper, but there was barely a scratch on the other 80% of the IHS in the slightly CRITICAL center portion. Anyhow, got it mostly flat and now temps, under the exact same conditions and even a slightly higher ambient room temp as the warm southern cali sun heats the land, are maxed at 63c. EDIT - Temp has stabilized at 59c for a drop of 13c.

    Definitely worth voiding the warranty in my book.

    ps. sorry to plant seeds in your minds.
    Last edited by Lesterp; 09-03-2006 at 06:37 AM.
    E6400/D975XBX @ 450x8=3.6ghz, 1.48v
    7800gt/2 x 1gb XMS 5400C4 (2.3v)
    250gb WD2500YS/Liteon 16x DVDRW
    Areca 1220 PCIe /4 x WD5000YRs

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