|Pentium III Coppermine|
Go here to see Coppermines VapoChill accelerated !
The Coppermine is as you might now a 0,18 micron Pentium3 with 256Kb on die cache. It is as it's predecessors ( P3 katmai, P2, Celeron ) also multiplier locked. So the only way to overclock them is to overbuss. The Coppermine comes in different variations, 100Mhz FSB and 133Mhz FSB. The different variations has letter codes behind their names. E means that it is a P3 Coppermine running at 100Mhz FSB. And the EB means that the processor runs on a 133Mhz FSB. So a 533EB is a Coppermine running on 133Mhz FSB. It also comes in two different form factors - Slot 1 SECC2 and the new s370 FC-PGA ( Flip Chip - Pin grid Array ). There was many people who wondered if the new Coppermine could be used in our old motherboards. The answer is both yes and no. The problem is that the Coppermine runs at a default voltage off 1.6-1.65V.. Therefore your mainboard has to support this voltages. Not all mainboards supports coppermines requested voltage. But in most cases, flashing to a newer bios is all there has to be done. But can the FC-PGA fit in a Celeron Socket370 Motherboard... - yes it will fit in the socket. And it will function - to a certain degree. But there will be instability and other problems. Its going around many rumors on how to modify your MoBo, Slocket, Cpu to fix the incompatible problem. As far as I know none off them work - correct me if I`m wrong.
The first version off the Coppermine was very easy to overclock. Actually so easy that in most cases, the only thing that prohibited us from getting any higher with them was the Agp, Pci Bus speeds etc. Some weeks ago there was reported that a new stepping :cB0 would come out in the beginning off March. It is very easy to identify this new stepping since there is a totally new marking format. See how to identify this new stepping here. To read more about this and to see P3 S-Codes, look at the Intel ® Pentium ® III Processor Specification Update here..
List off Coppermine processors
*: difficult to overclock due to the low multiplier combined with the high bus speeds you have to use.
Cooling the Coppermine
The Coppermine is a extremely "cool" processor temperaturewise. It runs very cool already with the retail heatsink. FC-PGA stands for "Flip Chip - Pin Grid Area", and as the name intends the Coppermines core is flipped around, so that the hotter part off the core is facing outwards. This makes cooling much easier.Sanding the Coppermine is for experts - beware and take care if you are planning doing this - the silicone lies right behind the blue slug. Anyway the slug is almost perfectly flat to begin with since Intel uses a new production method for the coppermines to get them "perfectly" flat.Coppermine's slug is very small... to small if you ask me - this makes several heatsinks sit uneven on the core, reducing cooling. To fix this problem, and to also improve cooling ( the heat spreads out in the whole CPU ), making a little copper spacer that sits around the core - Here is how the ones we made look like. The Coppermine does not produce much heat, a 550E overclocked to 825Mhz generates approximate 40Watt off heat. This makes cooling very easy. Go here to see how a 550E performs at 770Mhz ( 5.5x140 ). We can reach this speed without problems with the retail heatsink... here is a picture off a fc-pga coppermine in all its glory mounted on a Iwill Slocket2 with a Alpha cooler mounted on it. Here is the ultimate air cooling solution - Alpha PIII125S !
Pentium III Thermal Specifications
Press the thumbnail to see Intels thermal specifications
Pic from Overclockers.com
There have been plenty off rumors regarding the new Coppermine Celeron. It`s said that it will be released in the end off march 2000. What is said is that the Celeron Coppermine is in fact a ordinary FC-PGA Copper with half off the 256Kb L2 cache disabled - running with 128Kb L2 cache. The Celeron will still run on a 66Mhz FSB, so it looks like overclocking this baby will be good. It will have full SSE and MMX instructions. Rumors that some Copper Celeron was released in Japan is going around, what they say is that the 566 and the 600 will easily overclock to 100Mhz Fsb - 850Mhz and 900Mhz... But all this is rumors, so we will have to wait and see.
Abit motherboards .. do the cc/py/sn voltage-trick work using coppermines, yes -- but beware : good cooling is required !
@Tom Erik Isaksen