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Buying new P3, is 800@1000 easy/feasable to acheive?

P

Pluto

Senior member
I'm looking to replace the P3 500E that is currently in my CUSL2-C with something faster. Was thinking about a P3-800 (100mhz) and jumping up the FSB to 133 to acheive 1000. What is the likelyhood of being able to do that? I'm not really interested in running non-standard FSB's or trying to get anything higher than 1000mhz (8x133).

Is there a certain stepping I need to be looking for, or something more specific? I remember hearing that cB0 stepping was good for overclocking some time ago, not sure if there is something newer out.

I was thinking of ordering it over the net, and getting a retail boxed version. Concern # 1, I might not be able to get the stepping I want (or are all P3 800's cB0?) and two is the retail HSF adequate?

Update: I found this page after my first post, and it looks like for the P3-800E there is either cB0 or cC0, the difference seems to be the cB0 has "Vcc Core Voltage - 1.65 V" and the cC0 has "Vcc Core Voltage - 1.70 V/Requires a motherboard with a split plane for the Vcc". I don't know which of these is better or if there is any other significant difference between cB0 and cC0.
 
The chances of you hitting 1ghz with a 800e aren't very good.

I'd recommend purchasing a guaranteed overclocker from Compuwiz1, in the For Sale/Trade forum.
 
It really depends on the actual chip, some OC better than others. I run a P3 800e but of the Slot1 persuasion, and mine will do 145 fsb with extreme cooling, and will do 992,( that I know of), with the stock intel sink/fan combo . If as posted above, you want to run at 1 gig@133fsb, you really do want to go with the 750 cpu. cc0 is the latest stepping which is always best to go with if you can find 1, btw, mine is a cbo.
 
You are all right of course. I was rounding down, the 8x133 would give 1064mhz.

I take it then that getting 7.5x133 with a 750mhz P3 chip would be more reasonable? I still don't understand the difference between cB0 and cC0 but I'll take your word for it that cC0 is better (makes sense)

Getting a 750E is tougher though since Intel has three steppings for that chip, cA2 cB0 and cC0, which will make it more difficult to get the right one.
 
your best bet to reach 1ghz is with a cc0 p3-700E. this is from compuwiz1, bonkers325, and personal experience. i use a cusl2-c, cc0 p3-700E @ 150mhz fsb.

compuwiz1 said yields or something were much better with 700s rather than 750s or 800s. you might want to fire off an email to him asking specifics.

 
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