6950 & 7950 Power Supply

[buildbit]

Hi Guys,

Im just getting into mining and i want to make sure I dont kill my pc.

My specs are as follows:

PSU: Coolermaster GX 750W Bronze
Motherboard: MSI Z77A-G41
CPU: Intel i5 3300 (something like that)
Graphics: MSI Twin Frozer 7950 & Powercolor 6950.

I was just wanting to know if the power supply i have will be sufficient for the two cards under full load.

Any advice would be appreciated.

Thanks   

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[cdog]

yes

[buildbit]

Thanks for the advice!

I've actually got another 7950 now, do you think the psu will handle a third card?

[induktor]

No, three of those cards are too much for your PSU

I've tested 2 x 7950 here at full load in BTC they eat 520W at the power socket with the coolermaster GX 650, adding a 6950 will pretty damn sure be around 670W , maybe more, even if the psu can handle 100% load, it is not recommended to use more than 70% or 80% of the psu capacity, you will kill it in very short time, and the coolermaster are excellent units, it would be a pity to loose it.

Just get rid of the 6950, or put it in another machine. (7000 series are FAR more efficient MH per W)

EDIT: my numbers are based in a machine with sempron 145 processor, you have i5, so, add 40W more to my numbers.

[buildbit]

Thanks for the info!