Vista Froze - CPU and/or GPU OC too hot??

My Setup:

AMD Athlon XP 2800+ OCed @ 3200+ (4 years)
Gigabyte Ga-7N400 Pro 2, nForce2 Ultra 400 Mobo
XFX GeForce FX5900 OCed @ 5950 Ultra (4 years, via BIOS flash)
2x512MB Corsair Dual Channel RAM PC3200
Lite-On 18x DVD Burner EIDE
Allied 400W PSU (
Thermaltake Volcano 12 CPU Heatsink Fan (

My CPU gets as hot as 62 Celsius on low fan setting and 50 when the fan is cranked up to a loud screech. My GPU is at 67 Celsius. I just upgraded from XP and 4 hours into operations my PC freezes for like 2 minutes and things were running smoothly just moments earlier. First thing I do is crank the CPU fan from 2000 to 5000RPMs and that unfroze it for a little bit but was still lagging. I went ahead and did a shutoff and turned it back up in 5 minutes. Everything is going well in terms of operations but I was wondering if these temps were too high and if getting a better PSU will help alleviate the whole overheating issue.

My CPU is on the TT Heatsink with AS5 applied. The GPU is using the stock aluminum heatsink and fan which in my opinion looks efficient (though Everest tells me a different story?). Would a new PSU help? New heatsink for GPU and/or CPU perhaps? I really don't want to spend too much since this rig is a couple years old.

I didn't add voltage to either the CPU or GPU when I decided to OC. The CPU was OCed via the BIOS i believe. Please help me, I feel so hopeless. Thank you for taking the time to read this.
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  1. Actually you need more ram. At least 2gigs. 1GB is sure to cause lag.

    Also, mind telling us your settings?
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