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PSU Problems

  • Power Supplies
  • Components
Last response: in Components
September 15, 2012 10:03:58 AM

OK Heres it in a basic form

Old PSU 250WATTS + HD5450 GCard = Everything works ok i can use the card no problems.

New PSU 500WATTS + HD5450 GCard = Nothing on screen but the system starts up, have to plug into the onboard Gcard to get a screen.

With the New PSU the HD5450 dosnt show up in the divice list.

According to CPUID all the Volts are correct.

I have reset CMOS/BIOS and have looked through the bios to check if theres a power option but nish.

*Could the power supply be faulty
*Could the Mobo be unable to take the new PSU
*Am i missing something

The system is on a MRS600M Mobo But according to the mobo itself it has MS7326 printed on it.

Its a ACER stock mobo.

The strange thing is the 250watt psu should be able to run the system but it dose.

The new psu is a High Power Plus 500 model.


More about : psu problems

a b ) Power supply
September 15, 2012 10:25:22 AM

Have you hooked up the graphics card power connector to the PSU?
September 15, 2012 10:42:35 AM

There's no pins on the graphics card I've checked
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a b ) Power supply
September 15, 2012 1:20:54 PM

Did you disable the onboard graphics in the BIOS and set video to PCIe.
a c 158 ) Power supply
September 15, 2012 1:57:00 PM

Not much of a PSU 'upgrade.'
September 15, 2012 3:58:25 PM

The bios is setup for pci-e first
a c 148 ) Power supply
September 15, 2012 4:05:23 PM

I suspect your new psu is faulty.

I would return it and buy a known good quality brand such as Seasonic, XFX, Corsair, Antec, or PC P&C.
Here is one tiered psu list for reference: