Power supply for Crossfire

slade · 28 Oct 2010 at 06:11

Is a 750 Watt power supply enough for 5870 in Crossfire?

Not sure what make yet tho?! Maybe Antec EarthWatts 750W

Thanks

ATIorNvidia · 28 Oct 2010 at 06:47

550w can power two 5870's, so 750 will do it very easily.

I recommend the XFX 650W XXX, it's Modular, only £70, and based off the Seasonic M12D platform which is very, very good.

Essexraptor · 28 Oct 2010 at 07:10

ATIorNvidia said:
550w can power two 5870's, so 750 will do it very easily.

I recommend the XFX 650W XXX, it's Modular, only £70, and based off the Seasonic M12D platform which is very, very good.

Do you have one of these units yourself or do you work for XFX or summut?

Just that you seem to be plugging it awfully hard at the mo!....

LOL

ATIorNvidia · 28 Oct 2010 at 07:23

Essexraptor said:
Do you have one of these units yourself or do you work for XFX or summut?

Just that you seem to be plugging it awfully hard at the mo!.... LOL

No, I just go by facts. I actually own two Corsairs.

RJC · 28 Oct 2010 at 07:27

750w will be fine for crossfire 5870 gpus, any PSU from Corsair, BeQuiet or the XFX which was mentioned above all get reasonable reviews.

slade · 28 Oct 2010 at 10:45

ok

i already have an Antec 550 watt, should i try that first..... could save me some £££

ATIorNvidia · 28 Oct 2010 at 12:34

slade said:
ok

i already have an Antec 550 watt, should i try that first..... could save me some £££

Which Antec exactly?

reiyushin · 28 Oct 2010 at 12:51

I'd not risk it on a 550w.

You'll be extremely close to the limits if you're even within them.

I'd go for a 700w+ PSU - Corsair is my personal recommendation
You need 60 amps on the 12v rails and 4 6pin connectors or some molex adaptors.

slade · 28 Oct 2010 at 15:04

ATIorNvidia said:
Which Antec exactly?

ita a Antec 550 Truepower Trio. Its over 2 years old now but never missed a beat!