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Is my cheap Power Supply enough for an AMD Radeon 7850?

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February 14, 2013 7:09:46 PM

The GPU I want - http://www.amazon.co.uk/gp/product/B001BS6SOM/ref=s9_si...

The PSU I've got is a storm 600w, I know I have enough watts, but is the quality enough not to fry my components or anything? Specs are as follows:

Storm 600w psu with 120mm fan
Improved Spec now with 4+4= 8pin connector and 4 x SATA
Dual +12V technology; Version 2.2 psu
Silent fan operation with noise level <23dBA
PFC Power Factor Correction
24 Pin;1 x 4 pin +12V; 1 x 6 pin Pci-e; 4 x SATA;3 x 4 pin power; 1 x floppy connector
Cable length 50cm with full braided cable sleeve
Rear on/off power down switch
Over voltage and circuit protection +3.3, +5V, +12V
CE/FCC UL approved
EMI Filter built in
Colour retail boxed
For Socket 775, Am2 and all backward CPU's
ROHS Compliant
Dimensions W 150 H86 D 140mm
+3.3V 24A; +5V 32A; +12V1 21A+12V2 22A; -12V 0.6A; +5vsb 2.0A

Link - http://www.amazon.co.uk/Storm-600w-Psu-pin-Sata/dp/B001...
a b ) Power supply
February 14, 2013 7:20:48 PM

I have never heard of Storm PSU's. I wouldn't risk it.
February 14, 2013 7:24:29 PM

Money is so tight though, it's running an XFX Radeon hd 6770 at the moment if that's any indication?
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a c 282 ) Power supply
February 14, 2013 7:47:42 PM

MRnightmuffin said:
Money is so tight though, it's running an XFX Radeon hd 6770 at the moment if that's any indication?


Ugh - you are takin a gamble. That psu has only 24a on the +12v rail, that's
a horrific low number for a supposedly 600w unit.
The budget Corsair 430w for example has 32a on the +12v rail.

Also, it has only 1 pci-e connector(strange for a 600w unit), and there are
some non ref 7850's that require 2.

This is the link for it, if you have a diff model, specs might differ:

http://www.edworthycomputers.com/shop/index.php?route=p...

February 15, 2013 8:06:35 AM

Hmm, I swear I should be ok, I remember looking over another thread yesterday and someone mentioned that the 7850 only needs 18A on a 12+ rail. If infact, the power supply is inadequate, what can I expect to see happen to it/my pc?

Also, the 7850 only needs 1 6 pin as listed by the official requirements
a c 282 ) Power supply
February 15, 2013 11:10:04 AM

MRnightmuffin said:
Hmm, I swear I should be ok, I remember looking over another thread yesterday and someone mentioned that the 7850 only needs 18A on a 12+ rail. If infact, the power supply is inadequate, what can I expect to see happen to it/my pc?

Also, the 7850 only needs 1 6 pin as listed by the official requirements



Yeah, try it. You posted better specs than the link of the one
I posted, so there must be two of those 600w models,
and you got the better of the two.

Yes, ref 7850's have 1 pci-e connector, while there
are non ref models that req 2.

That sys can run fine on a quality 450w unit,
so even if that PSU isn't a real 600w unit,
you should be ok.

However, you may want to start saving for a
new psu down the road. It's one component that
I would never want to risk to a suspect brand,
because it damage other components when it goes.
a b ) Power supply
February 15, 2013 11:27:40 AM

Just thought I would chime in here and mention that I have a OC edition 7850 (975Mhz) on a 3570K running at 4.1Ghz, using 2 spinning disks and an SSD.

If I plug my machine in to a kill-a-watt and run future mark, prime95, and benchmark all three drives at once I barely pull over 215 watts from the wall (it's like 215-220). Even if that entire 220 watts were being supplied to the machine entirely on the 12v rail that's only 18.3amps . . . and that's assuming the PSU is 100% efficient . . .

You're fine.
February 15, 2013 6:29:34 PM

Thanks guys, great help, I'll give it a shot and see what happens
February 26, 2013 7:54:38 PM

Just a little follow up, (sorry if it's bringing up an old thread), I just received my 7850 today and installed it with no problems what so ever, the power supply handles it absolutely no problem!
I tell you what, for £20 this PSU is incredible.
a c 282 ) Power supply
February 26, 2013 8:03:50 PM

MRnightmuffin said:
Just a little follow up, (sorry if it's bringing up an old thread), I just received my 7850 today and installed it with no problems what so ever, the power supply handles it absolutely no problem!
I tell you what, for £20 this PSU is incredible.


Gr8
Enjoy your setup!
!