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how flat is the h50? Should I lap it?

post #1 of 36
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basically the topic says it all.
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post #2 of 36
I haven't for my i7 rig, but I'll be interested to see what the other responses are.

Also, if you lap your heatsink, you should also lap your CPU IHS.
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post #3 of 36
Thread Starter 
Quote:
Originally Posted by kremtok View Post
I haven't for my i7 rig, but I'll be interested to see what the other responses are.

Also, if you lap your heatsink, you should also lap your CPU IHS.
Yea I lapped my true but at the time I had just gotten the chip and didnt want to lap it. Lapping a chip Always worries me especially since mine have pins on it.
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post #4 of 36
I dropped 12c @ load when I lapped my H50 while using it on my i7 930.
post #5 of 36
Quote:
Originally Posted by ckybam3 View Post
Lapping a chip Always worries me especially since mine have pins on it.
A valid concern, I admit.
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post #6 of 36
Quote:
Originally Posted by AdvanSuper View Post
I dropped 12c @ load when I lapped my H50 while using it on my i7 930.
Wait, WHAT? Are you sure that's all that changed? Same good contact between CPU IHS and H50 heatsink? Same TIM? Same pump speed? Same fans and fan speed? Same ambient temperature?

If that's a realistic improvement, then I already have the sandpaper, and my i7 and H50 are getting scratched tomorrow!
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Windy
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post #7 of 36
Quote:
Originally Posted by kremtok View Post
Wait, WHAT? Are you sure that's all that changed? Same good contact between CPU IHS and H50 heatsink? Same TIM? Same pump speed? Same fans and fan speed? Same ambient temperature?

If that's a realistic improvement, then I already have the sandpaper, and my i7 and H50 are getting scratched tomorrow!
Yes I am very sure. Same TIM, same ambients (it was summer and the AC was on at the same temp), same fans, same rad location etc etc.

Just do it properly and evenly and you'll have no issues at all.
post #8 of 36
i find that hard to believe. maybe a 2-4c difference.
post #9 of 36
Quote:
Originally Posted by AdvanSuper View Post
Yes I am very sure. Same TIM, same ambients (it was summer and the AC was on at the same temp), same fans, same rad location etc etc.

Just do it properly and evenly and you'll have no issues at all.
I've lapped before and I can do it again...my folding rig might be going down for a few hours this weekend. If you're wrong, I might have to figure out where this 'NC' place is and shake you by your ankles for a new H50 and i7 950!




...which I wouldn't mind since my i7 950 needs over 1.4v for 4Ghz. My first unlucky chip.
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Windy
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post #10 of 36
I'm sorry you feel that way th0m0.



Stock Idle



Stock Load



Lapped Idle



Lapped Load



Basic math skills will show you the difference. Same Yate Loons in push/pull, same Shin Etsu G751, same rad location and same ambient, same voltage and OC which was stock. No tricks or foolery.


Quote:
Originally Posted by kremtok View Post
I've lapped before and I can do it again...my folding rig might be going down for a few hours this weekend. If you're wrong, I might have to figure out where this 'NC' place is and shake you by your ankles for a new H50 and i7 950!




...which I wouldn't mind since my i7 950 needs over 1.4v for 4Ghz. My first unlucky chip.
I didn't lap my chip just the H50 so you're on your own if you ruin the chip.
Edited by AdvanSuper - 12/27/10 at 10:29pm
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