keyboard & mouse

[rudebwoy]

I just got a Compaq 5900t CTO giving to me by a friend had win 98 went to upgrade to win xp but the keyboard nor the mouse wont work if I boot it to dos it will all work but when I go to installed win xp the keyboard wont work nor the mouse, I've change the fan on the cpu to see if was a heat problem but it not change several keyboard and mouse but get the same result, somtime it will work for two second and then just lockup. any help will be grateful, and yes I've already upgrade the bios to the latest one on the hp site.

[eedmond]

I just got a Compaq 5900t CTO giving to me by a friend had win 98 went to upgrade to win xp but the keyboard nor the mouse wont work if I boot it to dos it will all work but when I go to installed win xp the keyboard wont work nor the mouse, I've change the fan on the cpu to see if was a heat problem but it not change several keyboard and mouse but get the same result, somtime it will work for two second and then just lockup. any help will be grateful, and yes I've already upgrade the bios to the latest one on the hp site.

Are they USB or PS2? I had an issue with XP and my PS2 ports when I tried installing the Microsoft Intellitype/Intellipoint software on my machine. It effectivly killed my PS2 ports and would not work in windows. I had to switch to USB ones to get them to work. I eventually reformatted my machine and was able to use the PS2 ports again.