Upgrading an old Dell 5335T system

By mathew.nix ·
I was wondering if anyone knows if I can upgrade the processor on a Dell 5335T motherboard to a Pentium III 933Mhz with an FSB of 133Mhz. I know the board has an FSB of 100Mhz. Also a more generic question. Does the FSB of a motherboard have to match the FSB of the processor?

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by TheChas In reply to Upgrading an old Dell 533 ...

Intel CPUs are a bit more tolerant of being under-clocked than AMD CPUs, so the 933 "might" function". You won't get the full performance of the CPU without being able to set the FSB to 133 MHz. Nor, will you be able to clock it at 933 MHz. With a 100 MHz FSB, and the same multiplier, your 933 will run at 700 MHz. Running a multiplier greater than 7X will be over-clocking and can cause instability.

A greater issue is will the BIOS recognize the CPU and set the clock speed and core voltage properly? Or, will it not even POST?

As a side note, keep in mind that if you double the system speed, you typically see at best a 25% increase in performance.


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