Question regarding the CM Real Power M620 psu

Dear reader,

I've tried calculations on the internet and stuff but I don't really trust them.
A friend o' mine wants to add another Radeon HD 4890 to his comp and he already has the following:

Case: Antec Ninehundred, with a 200mm fan and 5x 120mm fans
GFX Card: XFX Radeon HD 4890
Motherboard: ASUS P7P55D-E
RAM: OCZ Obsidian Series Triple Channel Kit 6GB (3x2) DDR3 1600MHz
CPU: Intel Core i7-860 @ Stock, might want it oc'd in some time
PSU: Coolmaster Real Power M620
HD: WD Caviar Black 1TB 7200 rpm 32 mb

Now, he wants to add another 4890 as mentioned earlier, but I'm not entirely sure if his PSU will hold it together as I have had bad experience with power supplies in the past (not mine, luckily) and I have no experience with Cooler Master PSU's either.

Could anyone tell me if the PSU will hold it ?

Thanks in advance!,
4 answers Last reply
More about question real power m620
  1. It'd be pushing it, but it still falls within the limits of the PSU. To be honest, it's so close, I'd get a 750w or larger.
  2. Thanks for the reply, I will tell him. I'd suggested him a Corsair HX750 earlier this evening, but wether he has/wants to pay that is up to him.
  3. I own one a HX750 and it puts out over 900W.
    Great unit and quiet too.
  4. A quality 650W PSU will handle the rig fine. I just don't think CM Real power will be able to. A similar powered Corsair or Antec will be good enough. Go 750W just to be safe & sure. My money's on the 750TX too.
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