Background
The Celeron 433 comes as a Socket 370 packaged in PPGA and Slot 1. Intel says this is the last Celeron with both makes. Future Celerons will be PPGA only. I bought a Retail chip of Malaysian manufacture.

In the days waiting upon Mr. UPS man to bring my chip, I was plotting to water cool this chip so I could take it out to its max. There were no known reviews on it at the usual OC hangouts, so I figured I'd be whacking out virgin territory.

I began by ordering the high end 7ns Azzo 64 Meg ram and a 17 Gig hard drive. The machine is called 'Grandma's Crutch' from the beginning; it was designed to the solution to Darker, my nemesis Quake 2 fiend at our LAN Party in Austin (He only frags me 10 to 1 at Quake 2). see http://208.24.50.83/Default.htm for Austin LanGames

Components
Retail Celeron 433 PPGA -- L9121160-0369 / SL3BS
ABIT BX6 ver2 Slot 1
SLOTKET adapter Slot 1 to 370
Single Diamond Banshee (Voodoo2 chipset)
Impact Soundcard
Soho Network Card
7ns 64M AZZO Ram
Maxtor 17Gig
old 8x CD
CD and HD on separate IDE channels

Testing
I had hopes this chip would do the 50% increase that the 300a could do. But was concerned about the high multiplier. Fortunately, Celerons still run at 66 MHz, so I chose the ABIT BX6 - v2 motherboard. Part of this ABIT choice was the hopes of a Bios update that would give more refined tweaks between 75 & 83 and between 83 & 100.

So I kicked off with 433MHz using the Intel Fan. No problems, ran fine. I notched to 75 f.s.b (front side bus), ran stable at 488 MHz. Went to 83 f.s.b., clocking 541 MHz, posted but crashed in Win98. Bumped voltage, unstable at 2.3v; at this point I felt it could be done with water cooling. 100 MHz fsb at 650MHz was an outside chance only with water cooling; but I tried anyway -- didn't even post. I went back to 75 MHz 2.0v and ran stable for a hour before my rising CPU heat became an issue and it gave general protection faults. At this point a monkey could get 488 stable with a good fan. 541 would be the trick.

So I built a water jacket to cool the CPU from Mike's design, see  http://www.agaweb.com/coolcpu/build.htm     for details. Its a good design, cheap ($40 of parts), quick to make (2 hours + 24h cure time) and been copied many times. The PPGA proves to be tricky to water coolers which run water over the chip itself, like mine. The PPGA package has the ends of the pin go through and surface on top. Thus, the surface of the plastic must be coated with silicone to avoid shorting any of the 370 pins.