Lapping FTW - Page 3

03-17-09, 12:33 AM

Quote:

Originally Posted by lee63

Did you lap your 920 ?

No, I heard that wasn't a good idea on i7's. Just the heatsink.

Can't believe the results!

**lee63** · 03-17-09, 01:29 AM

Quote:

Originally Posted by methimpikehoses

No, I heard that wasn't a good idea on i7's. Just the heatsink.

Can't believe the results!

Hmmm... I might give it a go on my HS.

**bob saget** · 03-17-09, 01:49 AM

nice work bois

**mailman2** · 03-17-09, 09:31 AM

I lap all my chips. Makes a huge difference most the time, worst results I've had was only dropped 5 deg c - still worth it imo. I had a few that dropped ~15c loaded and allowed the chip to OC about 300 Mhz higher.

It has always allowed for higher OC (even if its slight), lower temps and less voltage needed after it was lapped.

03-17-09, 10:02 AM

The interesting thing for me was that the idle temps are similar, about 40C, but the stress temp is 15-20C cooler.

ViN86 · 03-17-09, 11:02 AM

when i eventually get my 9650 i may try this

**lee63** · 03-17-09, 11:39 AM

Quote:

Originally Posted by methimpikehoses

No, I heard that wasn't a good idea on i7's. Just the heatsink.

Can't believe the results!

Why cant you lap i7s...just curious.

03-17-09, 11:49 AM

Just a internet rumor, dunno if it's true. Jakup would probably know...

**lee63** · 03-17-09, 11:55 AM

Quote:

Originally Posted by methimpikehoses

Just a internet rumor, dunno if it's true. Jakup would probably know...

I taught him how to lap lol... I,ll check out the internets to see what I can find

Zapablast05 · 03-17-09, 12:42 PM

Quote:

Originally Posted by Bman212121

I had bought some 600 grit and 1500 grit paper, and also had some 150 and 220 grit that was lying around.

Is that what's recommended? I'm really thinking about lapping my CPU and HS when I get home now that I found a guide on lapping my Xigmatek HDT-S1283. I found a grit guide and is it better to start rough with a low grit sheet then move up to smooth grit sand paper to give it a final polish?

**mailman2** · 03-17-09, 12:42 PM

Quote:

Originally Posted by methimpikehoses

The interesting thing for me was that the idle temps are similar, about 40C, but the stress temp is 15-20C cooler.

The wolfdales had issues with the sensors getting stuck and not going lower than 40c. Sounds like its another sensor issue. Even though its dropping under load I'd bet the sensors on the I7s are just busted like wolfdales were.

**mailman2** · 03-17-09, 12:44 PM

Quote:

Originally Posted by Zapablast05

Is that what's recommended? I'm really thinking about lapping my CPU and HS when I get home now that I found a guide on lapping my Xigmatek HDT-S1283. I found a grit guide and is it better to start rough with a low grit sheet then move up to smooth grit sand paper to give it a final polish?

I used to start with 400. Now I start with 180 and get it to copper in minutes. Then I jump to 400 and finish with 600. The mirror finish makes it hard for the TIM to actually work. It has been recomended among veterns of OC and lapping that 600 or 800 is better cause there are actually slight imperfections for the TIM to settle in.

Its not how mirror smooth the finish is, its the fact that you are levelling the surface making it true so that you get better contact across the IHS.

03-17-09, 01:49 AM	#27
bob saget Join Date: Dec 2006 Location: Vancouver, originally Russia Posts: 23,133	Re: Lapping FTW nice work bois

03-17-09, 10:02 AM	#29
methimpikehoses Guest Posts: n/a	Re: Lapping FTW The interesting thing for me was that the idle temps are similar, about 40C, but the stress temp is 15-20C cooler.

03-17-09, 11:02 AM	#30
ViN86 Registered User Join Date: Mar 2004 Posts: 15,486	Re: Lapping FTW when i eventually get my 9650 i may try this

03-17-09, 11:49 AM	#32
methimpikehoses Guest Posts: n/a	Re: Lapping FTW Just a internet rumor, dunno if it's true. Jakup would probably know...