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Is my PSU adequate?

M

myrmidon

Member
Hello, I'm curious if I should scramble to grab the upgrade, or not sweat it.

At this point in time I am running an older OCZ 600W "SLI" PSU.

I just upgraded from a single 5770 to dual 6850's. Doing some research around shows that they use a max of 398W of power, while my PSU offers 420W of power from the +12V rails.

The only other things I'm running off of this are an i5-2500k, 4gb of ddr3, 3 120mm fans, and a SATA harddrive.

I would just like to make sure that nothing is going to blow up, as after installing this the PSU did get quite hot, but nothing that is seriously concerning.
 
? anandtech says the load for the whole computer under furmark load with CF 6850 is 423W
http://www.anandtech.com/show/3987/...enewing-competition-in-the-midrange-market/20

CPU: Intel Core i7-920 @ 3.33GHz
Motherboard: Asus Rampage II Extreme
Chipset Drivers: Intel 9.1.1.1015 (Intel)
Hard Disk: OCZ Summit (120GB)
Memory: Patriot Viper DDR3-1333 3 x 2GB (7-7-7-20)

albeit the OCZ isn't that great of a PSU, but if the 12V rail is actually 420W max, it should run it.
A quality 600W PSU would handle 6850 CF just fine

from anandtech's review the power draw will probably vary as most cards won't be reference.
also, if your PSU has seen significant use already, it probably can't handle 420W on the 12V rail anymore
 
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