Use CTSPD to make sure your PC133 is really PC133, not PC100. Then check the BIOS and make sure it's running at a 133 FSB. Hopefully you won't have to clear the CMOS. Don't forget about the PCI and AGP, you don't want those running out of spec. Is it ATX or AT? What about your ATA and UDMA? Are your CPU and GPU running within recommended temperatures? You might want to upgrade that PSU, 100w is simply not enough.
Oh, and don't forget about the 10/100 NIC and the 16x DVD with a built in 12/10/32 CD-RW.
And if you don't get the point of all of that, you're a bigger nerd than I am.
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