Radeon 7870 + 480W PSU

Alphagear · Apr 1, 2013

Hi guys I currently have a very old Tagan TG480-U01 PSU and wondering if it will be able to power a Radeon 7870 and an AMD FX-6300.

Reading the power rating it has a +12V rail of 28a (336W). Also has a -12V Rail which is 1.0a (12W).

Will it be enough?

Thanks.

stickmansam · Apr 1, 2013

No I would not put the 7870 and the FX6300 on your old PSU.

It's rail is pretty limiting (though it should work fine in theory)

On full load your system would draw close to 300W (125W GPU + 170W System), too risky IMO

Also gives you no OC room

Also PSU's suffer capacitor wear and can output less and less of it's stated power as time goes on

I would grab this PSU on a budget

http://pcpartpicker.com/part/corsair-power-supply-cx500

scout_03 · Apr 1, 2013

radeon will work with a 500 watts psu and a 6 pins pci-e connector since this is a old psu i would sugges to get a new one that at least are a bit over the one needed http://www.amd.com/us/products/desktop/graphics/7000/7870/Pages/radeon-7870.aspx#2

Alphagear · Apr 1, 2013

Well it does have 2 6-pin connectors since i'm currently using an ATI 4870

Upgrades · Apr 1, 2013

It could run the components but in my opinion, I think it would be cutting it close. FX-6300 is power hungry and with the 7870, I'd recommend at least a 550W power supply with 80+ Bronze certification. You're only paying an extra $70 after all.

It's also worth noting that you'll need two 6-pin connectors to power the GPU.

scout_03 · Apr 1, 2013

yes but dont forget that this psu was made around 2004 so it is 9 years old now .

stickmansam · Apr 1, 2013

Alphagear :

Hmm the 4870 actually draws about the same power as the 7870
So your PSU can still output pretty good despite it's age.

You could run it on your current PSU but there is an measure of risk in running pretty old PSU's even though your unit is pretty good quality.

I would target the PSU as your next upgrade if you decide not to swap it out now

Alphagear · Apr 1, 2013

Better get a new PSU just to be on the safe side. Anyway, would you recommend the Corsair cx600 builder series PSU.

Its pretty cheap at my local PC parts store in the UK at 48 pounds (around $70)

scout_03 · Apr 1, 2013

stay around there are some uk members that could give you some help for this .

Alphagear · Apr 1, 2013

scout_03 :

Will do since I have caught the Upgrade Bug.

stickmansam · Apr 1, 2013

I like the CX600, using it myself, actually outputs it's rated power

These units are also options
http://uk.pcpartpicker.com/part/xfx-power-supply-p1450sx2b9
http://uk.pcpartpicker.com/part/xfx-power-supply-p1450sx2b9

Alphagear · Apr 1, 2013

This is my local PC parts store.

http://www.cclonline.com/

Brett928S2 · Apr 1, 2013

Hi

This would suit your needs and a good 3 year warranty as well....

http://www.overclockers.co.uk/showproduct.php?prodid=CA-055-OC

All the best Brett

stickmansam · Apr 1, 2013

Looking at your local store site, I'll just grab the CX600

Alphagear · Apr 1, 2013

Brett928S2 :

Thanks Brett, So not much different in quality concerning OCZ/Corsair. CCL sell the Corsair cx600 for 48 quid.

Thanks alot guys really appreciate your help. Will definitely go for an OCZ/Corsair PSU. Decent quality coupled with decent price.

Alphagear · Apr 1, 2013

stickmansam :

Yes, thats the first option.

Thanks.

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