Curious about a cC0 P3 750.

[Jon]

Wondering about how well this would do at 133MHz. Getting there will be right a gig off the bat but didn't know how reliable the 750 would be as compared to the 700. Never hear anything about these chips but I found some for roughly the same price as the 700 that are with the cC0 stepping.

[wild_andy_c]

I hear stories about these chips. They are part fabricated 1Ghz chips that don't cut the ice and as such are marked down to 750Mhz.

As such I would imagine that a small voltage increase would send them perfectly upto speed.

[Jon]

I might give it a shot then. My 700 was a complete dud being unstable at even 840 so this might be a decent one to try.

$185US isn't too bad...may even drop some more in a couple weeks.

[wild_andy_c]

Very quickly (i live in UK and have been up all night - now 7:00am) - what modo and memory do you have ?

[Jon]

Soyo 7VCA (I know, your fave) and some Micron PC133 CAS3 that I've been able to get up to 148MHz no problem...processor just didn't like it.

[DaNut]

Hey Jon:

If you are going to try the FCPGA version of 750s, don't; at least stay away from the ones from Costa Rica. We recently tested a bunch of them, NONE of them will hit 133FSB even with voltage raised to 1.90v with an PAL6035 + Delta 38 mounted. Nasty chips. Not sure about the SECC2 version, haven't seem many around.

[marty]

Here's a question that only Humphrey Da Nut would know the answer to.

What is the average rate of good to bad cCO PIII 700's? That is for every number of overclockable good chips, how many won't cut it?

[marty]

Also, Humphrey,

How can you check your chips with the 6035 attached? I would think that putting a 6035 on and off your favorite motherboard would eventually wreck the plastic tabs that hold the heat sink on.

[Jon]

Thanks Humphrey. I've been looking on your site the past few weeks for your pretested FCPGA 700s. Know when you'll have some of those available, or are they just not listed?

[batboy]

I had made up my mind to buy a P-III 750 FC-PGA since since prices were as low as $160 US including shipping. I almost ordered today even. DaNut may of just saved me because I was going for 1 gig. and I wasn't sure my RAM could handle the 143 fsb needed for a P-III 700 to make 1 gig. This forum rocks. Maybe I should order from DaNut to show my appreciation.

[batboy]

Dang, I was ready to buy one of DaNut's P-III 700 processors that are pretested to do at least 933+ but then noticed they were only for slot 1. Any hope for good cC0 P-III 700 socket 370 CPUs in the near future?

[Big Lar]

I doubt this will help a decision at all, but I had a cbo 750 that did 1008 with exceptional cooling.....

[batboy]

Lar, was your 750 an OEM or a retail box CPU? Do you know if it was a Costa Rica one? I might just get a tried and trued 700 instead, now that I remembered I can run the RAM speed at 3/4 the CPU speed (if needed) with my Abit SE6.

[krimp]

Read this before you make any desicions!

I just bought 2 700 fc-pga cc0 stepped chips from www.outsideloop.com
this past week, and I'm -VERY- pleased with them. While you can buy
pre-tested chips here (like 700 @ 933 for $175), I gambled a little bit
and bought 2 untested chips for $160. I put them in a dual mobo
(Abit VP6), and they're each going 1ghz+ with default voltage. Yup, at
default voltage! They're running pretty cool too with just Gorb coolers, they
idle as low as 24C, and go around 36C when stressed. If it matters, they're
Phillipine chips. My memory is just some pc133 I bought a while back, it's
running at CAS2 and 4way interleaved even though it's really just generic
CAS3 memory. Sales people at outsideloop are really great too, they'll
answer any questions you have if interested.

So everyone consider this if you're thinking about buying a PIII soon!