dell workstation 400 dual processor issue

Hello All,
I have a bit of a confusing issue. I have an old Dell Workstation 400 that had 1 P2 300 Mhz processor and a bridge installed on a two processor motherboard. Original set up contained the 300 processor in slot 1 and bridge in slot 2. I have attempted to add two P2 333 processors, have changed the jumper setting to allow 333, and have configured the OS to recognize multiprocessors, and it will still only boot on one processor, the 333 processor in slot 2. I can interchange the processors and I still boot and run on the processor in slot 2. If I put one of the 333 processors in slot 1 and the bridge in slot 2 I cannot boot at all…no POST beep or anything. The processors are the same stepping, family, and model---x86 Family 6 Model 5 Stepping 2 333~. The BIOS should support this…it is a Phoenix BIOS Version A05. Any help would be greatly appreciated.

Doesn't this board have removable Voltage Regulator Modules? If so, you need 2 of those to run the thing with 2 CPU's. See if there's an empty slot bracket, around 2 inches long, anywhere on the board.

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Try asking at <A HREF="http://www.2cpu.com" target="_new">2cpu.com</A>

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