I have a Dell Poweredge 6800 system. It currently has 4 64Bit XEON 3.16GHZ 667Mhz FSB 1MB Cache processors. I bought 4 64Bit XEON 2.8GHZ DUAL CORE 800Mhz FSB 2MB cache processors to upgrade wtih. The reason why I went with these processors is that they have the VT Extensions for ESXi and Hyper V. Everywhere I have looked on the internet I have found that my exact model unit came with either the single core 667Mhz FSB chips or these Dual Core 800Mhz FSB chips. The system boots to the Dell logo screen so they obviously should work in some configuration. It just halts with an error message after the Dell screen.
The processors installed just fine. When I power the unit on, It passes the Dell Logo screen. Then the system halts saying "667/800 Mhz Components Mixed" "System Halted!".
I have model number ND891 Memory Cage. THis cage is specifically for 667/800Mhz FSB systems. Says so on the label.
I have PC2-3200 DDR 400 CL3.5 ram installed that is Dell logo'd.
I have the right VRM's. They are model T2745.
I am running BIOS rev A06.
I installed just 2 of the processors and removed the VRM's for CPU 3 and 4. The system still gave me the "mixed components" message. So that cleared the plug in VRM's as being part of the issue. The Dell server has built in VRM's for CPU 1 and 2.
Can't seem to figure this one out.