Lapping guide for your Intel LGA775

Quester115 · Post by **Quester115** » Wed Nov 07, 2007 7:12 pm

Basically sanding down your cpu to get it flat.
alright a bit more work than that last sentance, but you get the idea.
why do this?
er...why not?

there's copper under under that nickle top plate, and copper conducts heat Much more efficiently than nickle
Ni ~87(W/m-K)
Cu ~400(W/m-K) @ 50C and 1atm
haven't taken thermo- yet, but thats a pretty impressive difference

also, the processor comes off the manufacture line about as flat as the top of an ice cream float

just found this guide while browsing the interwebs and its the best do it yourself guide to lapping a cpu i've seen in a while. so i share with the peoples. This is also useful for your heatsink or waterblock too

well here's the guide, have fun
http://forum.overclock3d.net/showthread.php?t=4735

and since i'm now running my e6600 at 3600MHz! @ 58C

, it looks like its about time to try this out

Archangel · Post by **Archangel** » Thu Nov 08, 2007 3:35 am

Is that temp at idle or under full load........either way you need to get that temp down.

This is the HSF I'm using currently, the Arctic Cooling Freezer 7 Pro. This baby keeps my system at 51c under full load and 38c at idle.

http://www.frozencpu.com/products/5630/ ... =g40c14s52

BoneofMalkav · Post by **BoneofMalkav** » Thu Nov 08, 2007 10:02 am

Archangel wrote:Is that temp at idle or under full load........either way you need to get that temp down.

This is the HSF I'm using currently, the Arctic Cooling Freezer 7 Pro. This baby keeps my system at 51c under full load and 38c at idle.

http://www.frozencpu.com/products/5630/ ... =g40c14s52

damn!Got enough hardware in there buddy?

Quester115 · Post by **Quester115** » Thu Nov 08, 2007 12:18 pm

that temp was taken at a full load after 30min(lucas-lehmer iterations), cooled by air from thermaltake's mini typhoon. wasn't stable after about 2 hours of load, think it might've been heat and voltage(couldn't put through what i wanted to because of heat issue)
and yeah, running it that close to its thermal threshold can't be too good. Booted, took benchies, poped open TAT, poped out eyes, took it back down untill something changes.
nice HSF. and corsair ftw, i love their line.
and getting 4 cores that high and getting 51C at a full load isn't too shabby
but thinking of getting out the dremal and ducting in to one of those GeminiII
http://www.newegg.com/Product/Product.a ... 6835103026
and a tincy bit of mojo
http://www.frozencpu.com/products/3784/ ... g8c127s451
and ugh, need a new cooler for northbridge
that should hold for a while, but starting to get loud...

anywho, back on topic, lapped and reseated my processor and took the full load temps down by 7C (redid the surface on the HSF too). so if you have the patience and time, and an ass pad for a wallet just in case, i would suggest it.

Archangel · Post by **Archangel** » Thu Nov 08, 2007 3:01 pm

Let me ask you this, what case are you using? Is there plenty of ventilation? I'm using the CoolerMaster Stacker, with (3) 120 mm fans and has ample room for great ventilation. This case is almost double the size of my previous case which was a Lian Li PC-60.

That new liquid metal stuff looks like some great stuff. I'm going to try some of that.

Have you thought about watercooling? You can put together a damn good system for under $200. Don't get a kit as they're not as good as if you just get the necessary parts. Danger Den makes some great waterblocks for a decent price and utilizing 1/2" Tygon tubing, getting a nice Black Ice Radiator, a good Hydor pump and a reservoir tank will round out a geat system that should keep it under 45c (full load).

Quester115 · Post by **Quester115** » Thu Nov 08, 2007 4:43 pm

The case i'm using is a rosewill R5604 atx midtower
http://www.newegg.com/Product/Product.a ... 6811147033
Its alright for a midtower, I wouldn't suggest it though if you want superior air flow. Its cramped inside so you don't get as much head room as you would with a full tower. Two 120mm fans, one intake bottom front, one exhaust top rear. If you have one of those Long cards like the higher end of nVidia's 8 series there is very little flow up to the processor from the front intake, and that's where the side intake comes in. The side intake helps immensly with a cover duct that fits nicely over the fan with very good air flow. and stuck(duct tape ftw) 2 40mm fans on that little other side port near the bottom for the heck of it (they came with the mini typhoon but because of the midtower design couldn't fit the mounting bracket).

for my next case its either going to be
Antec's P180 : http://www.newegg.com/Product/Product.a ... 6811129025
or Cooler master's Cosmos : http://www.newegg.com/Product/Product.a ... 6811119138
and leaning towards the Cosmos. I like the the PSU on bottom aproach, and especially on the latter since it draws air up from outside and then right back out.

as far as liquid cooling goes teh monies aren't coming in as fast as they could...so all bets are off when it comes to putting a date on hardware upgrades over 40 USD.

btw(and offtopic, but hey tis the spam sect), could someone link to some decent hardware monitors, only have intel's TAT right now.

Archangel · Post by **Archangel** » Thu Nov 08, 2007 5:50 pm

I use PC Wizard for my monitoring........

It has a good interface for on-screen monitoring of temps and loads.

http://www.softpedia.com/get/System/Sys ... ease.shtml