OK then, what model is it?
HP Pavilion Media Center m8425f (no parts upgraded except my graphic card but I'm running Windows 7 64-bit)
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OK then, what model is it?
HP Pavilion Media Center m8425f Overview & Specs - Desktops - CNET Reviews
Ok comes with an NVIDIA GeForce 8500 GT. So what did you replace it with?
Are you telling me that I have to buy another power supply?Sorry to take so long. That system has some age on it and finding the service manual took A little hunting.
That comes stock with a 350 watt power supply and with all the goodies that comes on that setup, I'm leaning more now toward you're over loading the power supply.
Problem here is an aftermarket power supply may not fit your case. Do some measuring and see how much clearance you have behind the current psu and side to side.
Sounds like your baby need an electronic B12 shot.
A GeForce 8500 GT requires you to have a 350 Watt power supply unit with at least 22 Amps available on the 12 volts rail.
For a system using a single GeForce GTX 260 graphics card NVIDIA recommends a power supply with a +12 Volt continuous current rating of 36 Amps or greater and with at least two 6-pin PCI Express supplementary power connectors.
I'd think that you're cooking your power supply. Ask HP if the have a higher output power supply for that model.
1. Try to replicate the problem.