Hi, i try to build another dev workstation based on Win95 using a Asus P2B-DS. The big problem on P3 Slot1 is that the 1Ghz cpu use PC-133 FSB. My Single core P2B can easy use FSB133 for the 1GHz but PCI/AGP port also overclocked. Most cards dont work with this settings. Do anyone ever seen a P3 1GHz FSB100 Slot 1 CPU??? On ebay any time the CPU has FSB133... Setup i want to use: Asus P2B-DS @ FSB100 2x 1GHz P3 Slot1 coppermine 100 SEC 2x Diamont Monster 3dII 12MB SLI (3dfx, voodoo2) AGP Elsa Winner2000 :thumbsup: i know its kind of creazy, but i like the old stuff. http://homepage.swissonline.ch/rscheidegger/p2b_procupgrade_faq.html#coppermine_sec The ultimate processor upgrade guide for all Asus P2B and P3B boards regards Chris
I'm a whore for older computer stuffs. While DOSBOX does a good job nothing compares to running it on the original hardware, ever. I don't know if there are any Slot 1 1ghz P3s at 1ghz, however there are 1ghz and 1.1ghz PIIIs with 100mhz FSB that are Socket 370. Obviously that won't work in a Slot 1 native but you can get a slocket and adapt a socket CPU for use in a slotted mobo. I don't know if any exist that will handle the speeds you want but its worth looking into.
Well was a break point on FSB in this time. I really like the Slot1 CPUs, but the coppermine 100 SEC will be the only really usefull 1GHz Slot1 cpu ? :shrug:
Is the FSB fixed then? I would assume that if the processor is compatible but the mainboard supports 100 Mhz FSB tops that the processor would match that. So a 133FSB would work then?
On Slot1, the CPU Multi is fix from the CPU. The FSB is managed from the board. You can use 1GHz 133MHz CPU on a 100MHz Board @ 750MHz. I found now a 100MHz P3 1GHz CPU the, SL4KL (SECC2) Need another one for the Asus P2B-D. But only rev >= 1.06 board will work with the SECC2 CPUs... Such CPUs are rare and cost a lot more than the 133MHz version.
Using a 'unsupported' CPU is possible BUT: (Probably won't run full speed -- WHY NOT a SOCKET 370 board ? ) You need to patch the BIOS microcode & CPU recognition table data. Which is complex, arcane and black-magic to most non-programmers. (however beta-bios's and pre-patched ones did exist long ago...) IIRC there were tools that unpacked the BIOS, and let you merge / add data to the CPU tables, then all you needed to do was repack and flash!
