Upgrading GPU, some questions!

Killervolt · September 6, 2016

Hey everyone, planning on upgrading my GPU soon and I have a few questions:

So a mate of mine is selling his used MSI R9-270 dirt cheap, so I’m planning on getting that. Another mate of mine has a Sapphire R9-270X, and he’s willing to sell that to me. I’m about 80% sure these two cards will work together in Crossfire, but could someone please confirm? (I think I will either need to OC the 270 or underclock the 270X to the same speed).Thanks.

My second question is this- I only have a 500W PSU and a review I saw of two 270X’s show that it draws about 520W, so I need to upgrade. I don’t want to dish out >$100 for a new power supply, so I’m thinking of this- could I grab a cheap crappy PSU from the local hardware shop, strap it to the top of my PC and plug in the 8-pin power? I’m pretty sure I saw Linus do this once in Scrapyard wars, but I’m not sure if there will be any issues. I’m not overly concerned with aesthetics

Thank you all so much for your help.

AlphaGamer46 · September 6, 2016

The Crossfire with the 270 and the 270X will work, but in theory you will be running two 270's in Crossfire.

Secondly, Linus did do that once in Scrapyard Wars, but as long as you jump the 24-pin power connector using a jumper guide online, it will, in theory, work.