Ok my computer like 3-4 or maybe 5 months ago I upgraded it from being a dell 2400 and upgraded the psu from 200watts to 480watts and upgraded the mobo to an asrock p4vm800 and put a new gfx card in and started to have bsod's . So I reinstalled windows. Then I couldnt get sp2 omg anyway i dont care about that. My computer started to have bsod's again so I updated all my drivers. Still it was having them so I took it to a shop and had them replace MOTHERBOARD to and MSI, and replaced the psu again, and replaced the case and fans. Ok all was WELL until a month after the new stuff started to mess up again so i reformated it and now it just restarts randomly I have also replaced the drivers so many times. !!!!! GRRRR!
The error on the bsod is either IRQL Not Less Or Equal 0x0A
or 0x08E with the driver being NV4_DISP.DLL PAGE fault in nonpaged area
My hardware specs are: XP PRO SP2 , 480 WATT psu, 2.53 ghz p4, MSI p4m800, nvidia fx 5500Most Dell's have proprietary power supply connectors and mounting adapters, not to mention the orientation of the motherboards in the case can be unique. I am amazed that it works at all.

I would try mounting all of that hardware in a different case for starts. If all of the components are good, I would EXPECT no problems. Is that a legit copy of XP? That's the nimber one reason for people enot loading SP2.