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Windows 7: My PSU with 6870


24 May 2011   #1

Windows 7 Home Premium 64-Bit
 
 
My PSU with 6870

Hi guys i hope i'm on the right board. I've been looking around, and been asking lots of questions, but it really comes down to my specific PSU.

My computer is as follows
Core i5-750 (lynnfield) quad @ 2.66ghz
4gb (2x2gb) Corsair DDR3 ram @1333mhz
Albatron Geforce 9600GT (Which i'm upgrading obviously)
Asus P7P55 LX Motherboard
Acbel 510w PSU AcBel Polytech Inc. (Im almost 100% certain this is the one, so go by this)
I have a 500gb WD GREEN HD,
a standard DVD burner,

Now I dont do ANY overclocking, tampering with voltages etc, and i never plan to, so that aside, I purchased a Gigabyte 6870 graphics card, the 'OC version' with the three fans (it's massive), and i havent installed it yet. Will my power supply, going by that link (has all details etc), be able to handle it fine? or will i need to upgrade? Some people say i should be fine, but they havent seen specs of the PSU.
Oh and it's about 1 year old, the PSU that is, and doesnt get used 24-7, just regular usage and gaming.
Thanks heaps in advance for any help guys!

My System SpecsSystem Spec
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24 May 2011   #2

 

On the two 12v rails it only puts out 18A on each and a total of 360WS, this PSU is pretty much the bottom of the food chain.

You should use a PSU calculator, (search on the web) there are several from almost every PSU manufacturer and input your total components and see what is recommended.

The PSU is the most important piece of equipment in the system with under-voltage or over-voltage you can ruin the rest of your components.

If your PSU will work with your components by the calculation you should allow for additional Amps and Watts to the PSU is not under a constant load causing it to run hot and go out before its time.
My System SpecsSystem Spec
24 May 2011   #3

 
 

Quote   Quote: Originally Posted by Kipper View Post
, this PSU is pretty much the bottom of the food chain.
+1

There are recommendations of needing between 12.6A to 28A for a single 6870 with the PSU wattage being 500W minimum.

If your current PSU was a quality brand, you could possibly get away with it, but unfortunately yours isn't and as Kipper mentioned, under load that thing would give up prematurely.

Personally I wouldn't risk it.
My System SpecsSystem Spec
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24 May 2011   #4

Main - Windows 7 Pro SP1 64-Bit; 2nd - Windows Server 2008 R2
 
 

Good advice there.

I've got a similar rig (see my specs) and don't have a lot of room left on my 600W PSU. It has four 12V rails, allowing me to spread around the load a little. There is some debate as to whether this is better than one hugely powered rail, but it still means that it will knock the socks off a single-rail or dual-rail PSU with the same amperage per rail.

My guess is that it would run with what you have, but like Kipper pointed out, it will definitely put a strain on the PSU and if it goes it might take something (or everything) else with it.

EDIT: Slow typing. I was "ditto"-ing Kipper, but smarteyeball is just as much on target.
My System SpecsSystem Spec
24 May 2011   #5

Windows 7 Home Premium 64-Bit
 
 

Hey thanks guys, i appreciate your advice. Knowing that, i would MUCH rather upgrade my PSU!!
How does this one look for it? MSY Online It's an Australian site. The PSU looks pretty good for value. Corsair is a good brand, unless i'm horribly mistaken. I'm kinda not very confident with getting new psu and plugging everything in. Would i need to take out my motherboard?
Again thanks for the advice!
My System SpecsSystem Spec
24 May 2011   #6

Win7 Ultimate x64, Server 2008 R2
 
 

I have a fantastic Corsair 750W and it is a beast (easily supports my AMD x6 1090T, ATI 5830, 3 HDs (1 SSD) and a lot of high-end gaming). I also recommend Antec.

You usually don't need to take out your motherboard; just unplug all the cables.
My System SpecsSystem Spec
24 May 2011   #7

Main - Windows 7 Pro SP1 64-Bit; 2nd - Windows Server 2008 R2
 
 

Quote   Quote: Originally Posted by Azza View Post
...How does this one look for it? MSY Online It's an Australian site. The PSU looks pretty good for value. Corsair is a good brand, unless i'm horribly mistaken.
With one big 52A 12V rail you should be more than fine. I'm not sure on the current AUS$/US$ exchange rate, but Corsair makes quality stuff.

Quote:
I'm kinda not very confident with getting new psu and plugging everything in. Would i need to take out my motherboard?
Again thanks for the advice!
Probably not, unless you have some custom power wiring running between the MB and the back panel. Just make sure you plug something in everywhere you take something out. In addition to the big connector, there is usually at least one small connector directly to the MB that is easy to miss.
My System SpecsSystem Spec
24 May 2011   #8

Windows 7 Home Premium 64-Bit
 
 

Thanks so much guys, i really appreciate the help. Ill definately get that corsair power supply then, id rather spend a little more to make sure everything runs right!
Saved me a lot of worrying!
My System SpecsSystem Spec
24 May 2011   #9

Main - Windows 7 Pro SP1 64-Bit; 2nd - Windows Server 2008 R2
 
 

It might be worth mentioning that your new Video Card will take a couple extra connectors, too. Those are also easy to miss, especially when you're in a hurry to try out your cool new hardware.
My System SpecsSystem Spec
24 May 2011   #10

Windows 7 Home Premium 64-Bit
 
 

By extra connectors, do you mean more power cables? The corsair PSU i was looking at, has 2 PCI-E power cables, but if it had only 1, the 6870 i brought has a converter to make another. I hope once i get the PSU ill be all set, im excited!
My System SpecsSystem Spec
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 My PSU with 6870




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