wow amazing

[Xcobra]

wow guys, this little mod rocks!!! i just spent like 20 mins trying to get my cpu's ihs off, and amazingly it worked!!!! im idling at 30-32 and 37-39 full load...i must say this is the best mod, and i didnt think i could do it but there it is! sorry i dont have any pics, no cam ...but phew! that almost took my heart away!! lol but the sacary thing was that i have a xp-90 and so i had to sand the lil "feet" that support the mounting bracket precisely and i was afraid that i might crush the die but i did it! now if i havent hit a wall, OCing time, buhahaha...ill post results tomorrow...

EDIT: i used these directions and they helped a lot

 

[starwars7]

awesome, keep us posted with your results!

 

[Xcobra]

right now testing at 2.7GHz @ 1.47v...will definately post later

btw, specs are:

Althon64 3200+ Venice 0515APAW LBBLE
2x1GB G Skill Extreme Series
DFI NF4 Lanparty Ultra-D
ATI X800XL

 

[MegaWorks]

Intersting!

 

[Jeff7181]

Yes, very interesting. Nice for people who have bolt on heatsinks, but wouldn't removing that IHS cause insufficient clamping force when a reference style heatsink is installed?

 

[Zim]

Originally posted by: Jeff7181
Yes, very interesting. Nice for people who have bolt on heatsinks, but wouldn't removing that IHS cause insufficient clamping force when a reference style heatsink is installed?

Yes. I removed my IHS and my heatsink did not even make contact with the cpu core.

This issue has been discussed many times in this forum and the consensus of opinion is that it is not worth the effort.

 

[Shimmishim]

Originally posted by: Jeff7181
Yes, very interesting. Nice for people who have bolt on heatsinks, but wouldn't removing that IHS cause insufficient clamping force when a reference style heatsink is installed?

yes.

that's why you have to sand down the mount a little to get good contact... but you have to precise or like the poster said, you'll crush the core.

i've taken mine off before many times.

so far of the 4 i've done, i've only gained o/c in 1 case... and that was from an opty 144 that was stable at 3.0 but was able to hit 3.1 after removal.

 

[Xcobra]

Originally posted by: Shimmishim

Originally posted by: Jeff7181
Yes, very interesting. Nice for people who have bolt on heatsinks, but wouldn't removing that IHS cause insufficient clamping force when a reference style heatsink is installed?

yes.

that's why you have to sand down the mount a little to get good contact... but you have to precise or like the poster said, you'll crush the core.

Yup and thats exactly what i did...

Now heres an update on my new OC...before i was doing 2.6 but with real heat issues, it was 40 idle and up to 60 at full load....i think it still got a lil more in it but will try later click

 

[Shimmishim]

those temps look good. good job!

 

[compgeek89]

I removed the IHS on my 165, increased my OC by 75mhz and dropped temps 10c

I have pics too:

http://img110.imageshack.us/img110/6059/delid19uf.jpg

http://img140.imageshack.us/img140/7771/delid22vr.jpg

 

[Xpage]

what were yur temps before and after? Air cooled too I assume.

 

[compgeek89]

Before = 52C Dual Prime@ 1.55v

After = 42C Dual Prime @ 1.55v

Its actually really cool in my room right now and 1.57v is only 40C

Water, not air, see sig

 

[Xcobra]

very nice work compgeek, btw what did you use for cushion so that not all the pressure from heatsink goes to the core? im trying to find something but no idea...thanks in advance

 

[compgeek89]

No cushion, bolt it down as tight as you can. As long as the pressure is directly from above and even it wont hurt the CPU.

 

[firewolfsm]

A good version of this mod is to take it off, then replace the stock grease and put it on again....what if they sold a copper one 0__o

 

[Xcobra]

Originally posted by: firewolfsm
A good version of this mod is to take it off, then replace the stock grease and put it on again....what if they sold a copper one 0__o

it would help but only a little bit, since if you take it off for good, then the core is making direct contact with the HS, thus lowering your temps by a big margin...imo

 

[Jeff7181]

Originally posted by: firewolfsm
A good version of this mod is to take it off, then replace the stock grease and put it on again....what if they sold a copper one 0__o

Actually that wouldn't help at all. Thermal compound isn't better at transferring heat than metal to metal contact, but it's used to fill air gaps since it's better at transferring heat than air. The idea behind removing the IHS is removing that second layer of thermal compound that must be used which hinders heat transfer. So now rather than from the core to the thermal compound to the IHS to more thermal compound to the heatsink, it goes from the core to the thermal compound to the heatsink. By the way... can anyone suggest a cheap heatsink that wouldn't require any cutting or modding of anything to use with the IHS removed? I'm running my Venice at 2.6 and it's running about 65C with Prime95 running and 42C idle. If I could remove the IHS and drop temps by 10 degrees C without spending $50-60 on a heatsink that would be fantastic.

 

[compgeek89]

The TT Big Typhoon I believe

 

[Xcobra]

Zalman CNPS9500
i think you have to use some custom screws or something...