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Looking to upgrade

Last response: in Components
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March 3, 2010 8:02:34 PM

amd phenom 2 x4 925
7200 rpm 500gb hard drive
6 gb ddr3 1066 ram

im looking to buy a radeon 5770 and ill need a new power supply i know already. i currently have one of my dads that he replaced when upgrading(it was pretty new) it has 450 watt max, 12v1 at 15a and 12v2 at 17 amp for a total of 28a. it is a psu by velocity micro

in the end my question is whether the power supply will run it, tell me if you need other info.

More about : upgrade

a b ) Power supply
March 3, 2010 8:14:50 PM

The 5770 is a very efficent card. I'd think your psu could run it. Its always good to have a quality psu though. (Brand and amps are more important than watts).

I believe the 5770 uses around 100w loaded with around 9 amps? Try google 5770 amps. Id do it if I wasn't on my phone hehe.

You can always try it out and if you don't like the results then upgrade your psu. :) 
a c 164 ) Power supply
March 3, 2010 8:42:57 PM

you should be fine for the reasons raidur stated
Related resources
March 3, 2010 8:44:38 PM

i figured as much, just wanted to make sure so i dont set the world on fire.
a b ) Power supply
March 3, 2010 8:45:19 PM

Hello,

Ther minnimum power requirements for a Radeon 5770 is a 450 Watt PSU. It also requires a 6-pin PCI Express power connector.

Also, the 5770 uses under 100watts of power (but close to it).

Edit: I forgot the mention the 5770 uses approximately a max of 9 amps.

If you have a 6 pin PCI express power connector - you should be fine. If it doesn't it will obviously not work.

If you do upgrade to the 5770 - and experience problems, you may need to upgrade your PSU - 550 Watt PSU should suffice (as long as it is not one of those no name brand ones).
a c 164 ) Power supply
March 3, 2010 8:58:29 PM

Chainzsaw said:



If you have a 6 pin PCI express power connector - you should be fine. If it doesn't it will obviously not work.




...they outlaw molex to 6 pin adapters?
March 4, 2010 8:22:08 AM

not sure if the video cards come with a molex to 6 pin pcie connector...i thought most had one...
a b ) Power supply
March 4, 2010 12:05:26 PM

ct1615 said:
...they outlaw molex to 6 pin adapters?

must be for a good reason. molex to 6 PIN adapters are just cable and connectors and who gives warranty about that? I myself considered using it but once I have it I never got the nerve to plug it into the HD4770 that I bought for my kids. Ended up buying good PSUs afterall...
a b ) Power supply
March 4, 2010 12:14:46 PM

"...they outlaw molex to 6 pin adapters? "

What kind of dumb statement is that? Of course a molex to 6 pin adapter is going to work. I said basically if you don't have a 6 pin power plug - it will not work. If you obviously have a molex to 6 pin power plug it's going to work. Duhhh.

But yea - random kid has a point - if you don't have one on your PSU - it may mean your PSU is not new enough and or it can't provide enough "juice"
a b ) Power supply
March 4, 2010 12:19:47 PM

It could have plenty of juice but its older the problem with those adapters is your taking 2 12 volt leads and turning it into 3 leads on the one that is doubled up could prove to be to much for the wiring and that is not good so be careful if you use them
!