lapping my cpu?

[skid9uk]

what grades of wet and dry sand paper do i need?

Thanks,

Chris.

[DAK1640]

400, 600, 800, 1200, 1600

[SNiiPE_DoGG]

and 2000 if you like shiny things

[heydo6]

and use water with all grits ...imo

[ElEctric_EyE]

don't press too hard

[Brian MP5T]

Personally..

I went with 2000 Grit and a metal polish paste like Autosol...

Took 2 Minutes...

[Randy]

Personally,
the grit you use is no where near the importance of the flatness of the base you lap it on. I've seen guys use a piece of glass from a window etc., and actually do more harm than good by taking too much off the corners or sides. Lap it in a circular motion, versus side to side or in one direction. Most glass is not flat. If you know someone who does machining, you may be able to use a granite surface plate as the base for the lapping. I would lap both the CPU and the HSF transfer/contact surface.

[Garrett]

There's always 2500 grit if you know where to search... though I don't think that's very useful anyway... mine was shiny as hell but no temp difference

[Brian MP5T]

Mine was shiny, but I's also important to polish the Cooler too..

[skid9uk]

Cheers, Im doing it tonight did you mask it all off so you dont get any fileings in the cpu?
I think i need to do it as i just bought a PA120.2 rad, d-tek fuzion block with 5.5mm acelerator nozzle and washer/spacer and a D5 pump and with
my cpu at 1.34v with orthos running temps go straight up to 60c.

[Brian MP5T]

Wow, That's hot..

Have you thought about just getting an E6750? They are dirt cheap here like $175.00 and stock OC will give you a 2400 in Futuremark. I had one and the first time I booted it, I set it to 1600 FSB at 0.2 Less than recomended Volts on air...

No Joke, it's a cool CPU, never got over 49 Deg On Air..