New power supply needed (maybe?)

Jagmoide · 8 Aug 2016 at 14:30

Good Afternoon,

Switched my PC on yesterday and without my knowledge the power cable was half hanging out. There were a lot of sparks and now the computer does not boot. I'm guessing its the power supply that has gone.

Can someone please spec me a new power supply, as cheap as possible please.

Hardware is currently:
Radeon R9 Nitro 390 8192MB GDDR5 PCI-Express Graphics Card with Backplate

Intel Core i5-2500K 3.30GHz (Sandybridge) Socket LGA1155 Processor

Gigabyte Z68XP-UD3 Intel Z68 (Socket 1155) DDR3 Motherboard

XFX 650W XXX Edition Modular '80 Plus Bronze' Power Supply (DEAD?)

Kingston HyperX Genesis Grey 16GB (4x4GB) DDR3 PC3-12800C9 1600MHz Dual Channel Kit (KHX1600C9D3X2K2/8GX) [KHX1600C9D3X2K2/8GX]

250GB 850 EVO SSD 2.5" SATA 6Gbps 32 Layer 3D V-NAND Solid State Drive

Thanks all!

Borealis · 8 Aug 2016 at 14:55

You only need a quality 550W PSU for that build. For non-modular, I'd suggest this:
https://www.overclockers.co.uk/antec-truepower-classic-550w-80-plus-gold-power-supply-ca-202-an.html

Or for fully modular, this:
https://www.overclockers.co.uk/evga...plus-gold-modular-power-supply-ca-023-ea.html

Both are decent units that are more than capable of powering this system. Not really cheap, but should last you a long time Hopefully it's just the PSU that's blown.

PS. What is your budget for a new PSU?

Jagmoide · 8 Aug 2016 at 14:58

No real budget but would like to keep it as low as possible, fingers crossed it's only the power supply. Sparks lit up the entire room though

Borealis · 8 Aug 2016 at 15:10

Here's hoping the protection circuits did their job then.

With a 390, you're going to need a 550W PSU. The Antec unit I suggested will do the job and is probably one of the cheapest good quality PSUs around.

Jagmoide · 14 Aug 2016 at 11:08

Is there a super cheap alternative? Just to test if it hasn't blown anything else.

Jagmoide · 14 Aug 2016 at 11:20

and sorry for being stupid but whats the difference from non modular or fully modular?

Borealis · 14 Aug 2016 at 12:39

Non-modular means that all of the PSU cables are hard-wired into the unit. Fully modular means that the cables plug into the PSU and into the device. This means you can use as many/as few cables as you need.

If you want a cheap PSU for testing, then something like this should be good enough to power a 390:

https://www.overclockers.co.uk/xfx-xt-series-500w-80-plus-bronze-power-supply-ca-022-xf.html

At the very least, you can then boot into windows using the onboard graphics - take the 390 Nitro out. Then if everything seems OK, put the 390 back in and try booting with the GPU in the system. I wouldn't try anything too demanding as it is a cheap PSU.