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March 7th, 2016 01:00

optiplex 780 PSU

Hello!

My optiplex 780 has a 255w PSU, I'd  like to ask if there are any other options to replace this whith a more powerful (>300w ) dell or 3. party PSU , because I'd like to add a Vga card to the pc, and I'm afraid the 255 W PSU won't be powerful enough for this.

March 9th, 2016 20:00

HI Norbimu, 

Thanks for writing to us. 

255W is the maximum and compatible threshold test by Dell and can be recommended.

There are chances a higher wattage PSU would work but not advisable as you might risk damaging the motherboard or any components

Regards 

9 Posts

March 10th, 2016 00:00

Hello! Thanks for the answer!

Another question if I may ask...

Can I use this 255 w psu with any dedicated vga cards with low tdp, like nvidia gt 610 (~30w tdp) or radeon hd 5450(~20w tdp)?

Current 780 spec:

dell f255e-00 255w psu

Core2duo e8400 (65w)
intel q43/q45 with gma 4500
Hitachi 160gb 7200rpm sata
2x2 gb ddr3 ram
Usb keyboard, and mouse

(dvd rw- disconnected from psu, I don't use it)
bios v. :a15

9 Legend

 • 

47K Posts

March 10th, 2016 05:00

5450 works.

The other option is to use a regular power supply outside the case with the hole left by the internal supply as a way to get the wires inside.


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