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HD 5770 Power and amp requirements

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September 4, 2010 10:43:31 AM

Hi everyone

Im Planning to put either a HD 4870 or HD 5770 graphics card to replace my old 8880GTS. What are the power and amp requiremetns of the cards. Will Hiper HPU-4K580 PSU do the job? It does have a dedicated PCI-E connection if that makes any difference.

Computer Specs:

Intel E6600 2.4 GHz
ASUS P5NE-SLI motherboard
Gainward 8800GTS 640mb
2GB Corsair RAM
Windows Professional x32

Thanks :) 
a c 273 ) Power supply
a b U Graphics card
September 4, 2010 10:56:35 AM

Yes it has more then enough power and amps for either card.
September 4, 2010 11:07:35 AM

The reason im asking is that my PSU can only carry 20A over the 12v which is not enough according to some people, is it the dedicated PCI-E connection that makes the dfifference?
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a b ) Power supply
a b U Graphics card
September 4, 2010 11:41:35 AM

A quality 400W PSU with one PCIE connector for the 5770 and a quality 500W PSU with two PCIe connectors for the 4870 is recommended.
A 5770 can pull 110W(9A) (more or less) at full load.
A 4870 can pull 200W (17A) (more or less) at full load.

Yours is a multi-rail design PSU. It can deliver 20A on the +12V1 and 18A on the +12V2.

http://www.hipergroup.com/products.php?lv=3&cate=1&type...

As Davcon has said, your PSU has power enough (it can deliver 30A/360W (aprox.) on the +12V output).
September 4, 2010 12:27:11 PM

so do both the HD 5770 and HD 4870 haver 2 PCI-E power connections- i.e. have to power cables fed ito them
a b ) Power supply
a b U Graphics card
September 4, 2010 12:51:59 PM

To feed the 5770 you need a 6-pin PCIe connector
To feed the 4870 you need two 6-pin PCIe connector

Since your PSU presents two 6-pin PCIe connectors, it's able to feed both.
http://www.hipergroup.com/products.php?lv=3&cate=1&type...

Anyway, I would think about buying a new PSU in the future because the quality of your PSU is very low. Its capacitors are extremely bad (Fuhjyyu...).
Therefore I would go for the 5770.
a c 164 ) Power supply
a c 235 U Graphics card
September 4, 2010 2:56:46 PM

if you can power the 8800GTS 640mb, you can power the ATI 5770.
September 8, 2010 6:57:50 PM

Will it supply thre demand for power even when running high powered games and HD movies through the HD 5770?
a c 164 ) Power supply
a c 235 U Graphics card
September 8, 2010 7:42:03 PM

yes
!