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I have a coolermaster power supply that has 420watts is this enough to run an a8-6600k and a radeon hd7750 on hybrid crossfire

FuzzbearOct 7, 2013, 3:44 PM

I have a coolermaster psu that came with the case that I got is this enough to power an a8-6600k and a radeon hd 7750 on hybrid crossfire

6 answers Last reply Oct 8, 2013 Best Answer Oct 8, 2013

More about coolermaster power supply 420watts run 6600k radeon hd7750 hybrid crossfire

C12FriedmanOct 7, 2013, 5:11 PM

You would need to open the case and tell us the amperage that the PSU lists for the 12v rail(s). Off hand I'd say a new PSU is in order though
Deemo13Oct 7, 2013, 5:21 PM

It would depend on the 12V amperage, but if its halfway decent it should be fine.

I would recommend against Hybrid Crossfire though, as with the current drivers, it is rather stuttery.

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FuzzbearOct 8, 2013, 7:35 PM

It says that it has 20amps on a 12grail
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C12FriedmanOct 8, 2013, 7:51 PM

So that provides 240W on the 12v rail (20x12). You'll definitely be cutting it close but it may work with that PSU. I'd say give it a try and if you run into stability issues or it simply doesn't work, then get another. One thing to note, running a PSU at or near it's limits puts a lot of stress on it, when (if) it starts running the fan very loud, you'll want to look to replace it soon
Deemo13Oct 8, 2013, 7:52 PM

Should be enough for that setup.

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