Hi Absic,
Thanks for the help. I used one of the sites you recommended to determine my power requirements. It comes out at 266 watts. I have a 350 watt unit, so it should be OK. But it's sort of academic at this point, because I switched from a 420 watt unit, thinking that that 'might' be defective, and the source of my freeze ups, but I'm still getting them. So..... I don't think that psu is my problem. I've just swapped out another of my ddr sticks, so we'll see if that's the problem. It's just a minor irritation really. I get freeze-ups during the memory check on 'cold boot' ups. The restart button always solves the problem, so it's not a big deal. Thanks for you help.
....... john
