I've CCed just about anyone I could find that would be interested in this post. Sorry if you're not... -------------------------------------------------------------------------- Windows 2000 Domain Controller, Service Pack 2 (5.0 - 2195) Currently running : 2-Intel Pentium III (0.18 µm) {8} @~998.36MHz Current Uptime: 10mins 51secs My video is set to: 1024x768 RAM Usage: 160/768MB (20.83%) [||||||||||] -------------------------------------------------------------------------- In case you can not read through the moo.dll lines above, my Tyan Thunder 100 (S1836) Rev A motherboard is now running dual Piii 1000mhz Coppermine SECC2 CPUs with bios version 2.0. Isn't resurrecting old equipment fun? -a few terms- POST - (Pre Operating-system Self Test) Well, at least that sounded good like what it stands for. POST is that state of your motherboard/system startup that displays the BIOS screen, usually counting memory and such. Newer motherboards have the ability for you to load a bmp/gif to cover the post screen (i.e. Intel). BOOT - System has gone through POST and has booted the operating system completely to a working state and seems stable. Katmia - Piii 450mhz through 600mhz CPUs that have 512kB of L2 cache, running only at 100mhz FSB only. Coppermine or "E" - Piii 533mhz - 1000mhz CPUs that have 256kB of L2 cache, running at 100mhz (default setting) and 133mhz FSB. Also designated as "E" processors. The "E" is not required for processors 650mhz and faster as they are all "E" processors. Coppermine "B" - Piii 533mhz - 1.13Ghz CPUs that run on 133mhz FSB. The thing to note here is that "B" means the Coppermine CPU is running at a 133mhz FSB. No "B" designates it is running at 100mhz FSB as default above. -the goodies- I'll just briefly speak about how to obtain dual 1000mhz CPUs in this board. My tests included: (1) Tyan Thunder 100 (S1836DLU) REV A dated 02/98 (2) Intel Piii 600mhz SECC2 SLOT1 100mhz FSB Katmai OEM CPUs (2) Intel Piii 1000mhz SECC2 SLOT1 100mhz FSB Coppermine Retail CPUs My website of where I archive the files used for testing. I've also taken screenshots of various CPU testers to ensure it was running at 1Ghz. They are located below under "Enable Coppermine Support": http://spoof3d.com/projects/hardware/tyan Pictures of the 'old' setup (I'll update it when I take a break from installing equipment) is: http://theplayground.nu/pics/home/kube -the tests- I flashed the bios back to the current Tyan posted bios for this board. After inserting a single Piii 1000mhz CPU, the first test was to see if the system would boot with the latest Tyan V1.18.02 bios posted on the tyan website. FAILED Inserted the second CPU and tried to boot. FAILED Inserted the original dual Piii 600mhz Katmia CPUs and tried to POST. Passed. Booted to DOS and flashed the bios to the "Tyan Approved and Distributed" v1.18beta bios (which disables the overclocking "user interaction"). Shut system down and put in a single Piii 1000mhz CPU. FAILED Booted to DOS once again with the original Piii 600mhz cpu and flashed the bios to the circulating "unknown authored" v2.0 bios for this board. Shutdown and placed the Piii 1000mhz in the system and tried to boot. PASSED!!! But something odd... The POST only shows dual Piii 600mhz detected, not 1.0Ghz! Once the system booted to the OS, I tested with various CPU detection programs and they all claimed I was running at 1000mhz. Even megaflop ratings match what a single 1Ghz would be! -RESULTS- Bottonline, get the V2.0 bios off of my site above. Once you install that, everything seems to be in order. Just ignore the Piii 600mhz message on boot. It will be 1000mhz when the system boots. I even have the original REV A of the board! I purchased this board back in March of '98 for my dual P-II 450 system I built. A few years later I flashed and upgraded to dual Piii 600s Katmia. Now I have obtained the V2.0 bios and have installed dual 1000mhz Coppermine "E" (not "B") SECC Slot1 CPUs and the system is running very smoothly (I'm writing this article on it). Note that the ACPI doesn't seem to be working *still* for W2K. :( Have a nice day! And thanks to all of those working with me and others trying to get a "final answer" on this board. Btw, I am building a dual P4 1.7Ghz Xeon ($498 per chip) using the new Supermicro P4DC6 motherboard ($699) for the "Ultimate Gaming Machine". Why? Cause I have a client that wants it and there's no limit. Email me if interested in the pics/info. Parts will all be here by Tuesday. Eric A. Duncan eric@cdc.net Gotta love resurrecting these things...