Lapping K6-2 question

[nil_esh]

When you lap the case of K6-2 or K6-2+, is it safe to use water or should I do it dry?
Also what is a good grit to start and end with?
Thanks!

[Diggrr]

I don't remember what the K6-2 looked like exactly, but if it's got that aluminum cover you can just mark it up with a black permanent marker and use 600 grit paper <wet> on a piece of glass.
Keep doing figure 8's until all the black is gone. Since it's just aluminum, you can stick with 600 grit for the whole operation.

Dry it thoroughly before using...I like to use a hairdryer...it gets the pins nice and dry. (don't get it too hot)

If it does not have that aluminum cover, I wouldn't do it at all.;)
Happy holidays bud.

[nil_esh]

Thanks.. The permanent marker thing is a good idea. Its got an aluminum cap like the picture below.

[Diggrr]

Yepper, this one will give ya no problem.

Have a good one

[lennytiger]

Are you lapping the heatsink as well?

[Intraveinous]

I've had fairly good luck popping that cap off... When I was working in a computer store, I perfected the art on dead chips... Used the heat gun that came with out shrink wrapping machine to heat up the cap slowly... making slow passes over it for about 3 minutes... (about 2 seconds of heat, then 4 seconds of no heat, then 2 more seconds of heat). About 90 seconds into the heating, I would stick flat head screwdriver in between the heatsink and the heat spreader and start prying softly... Go around the edges and slowly pry all the way around until it comes off... You can then cool the die directly without the heat spreader... I typically got about a 2C drop without the spreader...
peace
John

[lennytiger]

sounds like you got the art cool

[dugans]

I cut the glue slowly with a razor knife: pita, took a while.

Thought I'd get better temps and OC out of it but...............I neglected to tighten up th hsf: cpu is a LOT shorter without the heat spreader!

RIP one old friend- K62 450!

Gotta get another one!

[lennytiger]

i have a 350 K62 it is great i oc'ed it to 550 stable, but i fried the mobo when i was puttin' more memory and i've never got another mobo, so if anyone has one PM me!!

[Ozzman]

yeah i had a k6 450 OCed it to far and also i think turned the power to high.. dont remeber which one fryed the mobo or chip i think it was both.... but i went with a celron EWWW bad idea.. but i came back to the right side with this athlon t-bird..

[nil_esh]

Originally posted by lennytiger
Are you lapping the heatsink as well?

Yeah, I've got a lapped Coolmaster (aluminum) on it right now, gonna replace it with a Swiftech MCXC370 if it fits right. I really dislike the Coolmaster especially the clip, though it cools fine for this processor.

Also I'm replacing my K6-2 with a K6-2+ 450 which runs on only 2.0 volts (max power consumption 20W) and its supposed to OC real easilly. I need a 2MB BIOS chip to use it though, only got 1 MB right now, gonna see if Epox will send me one.

[Intraveinous]

Originally posted by rogerdugans
but...............I neglected to tighten up th hsf: cpu is a LOT shorter without the heat spreader!

Yes yes... I forgot to mention this part... Bend your heatsink clip so it will still rest on the die of the chip... Or... just get a 50-80watt TEC and stick it in there if you have a good HSF... :-D
Peace
john

[Yodums]

Your thinking of lapping the chip? Well let me start and say it's a bad idea and won't help if you really want to shave 0.5 celius and take that extra risk of killing the core.


Anyways, do it with the waterproof 2000 grit sandpaper and obviously wet the sandpaper and carefully wet the part that you want to lap.

Although lapping the heatsink will give you way more noticeable changes....


Peace