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View Full Version : Upgrading Graphics Card .. will my PS be enough?

ic3cold
01-30-2007, 10:31 PM
Hi,

I have a DFI AD 77 Socket A motherboard, with an Athlon XP 2600+, 1 GB Kingston 333 DDR memory, 60 Gb HD, 120 Gb HD, Lite-On DVDRW, Creative CDRW (old), MSI MX 4000 64 Mb AGP 8x graphics card, plus an additional fan ...

My current PS is OEM 450W with:
+5v - 28A
-5v - 0.5A
+12v - 18A
-12v - 0.8A
+3.3v - 20A
+5vSB - 1.5A
I got it in a trip to China in October 2004.

The motherboard DOES NOT have 2x2 12v connector ...
This is working normally.

I decided to upgrade my graphics card to a Sapphire RADEON X1950 PRO 512Mb AGP 8x which has a significant power requirement ...

So my question is will my existent Power Supply be able to handle the new card? Or do I need to replace it? Should I wait until the card arrives and test it or that will be a waste of time?

I read several forums and several opinions regarding PS upgrades and Graphic cards requirements and some seem contradictory, because some says it actually suffices with less wattage and less amps on +12v, and others ask for 28A minimum ... Some also mention the fact that Socket A motherboards won't benefit at all ...

Thank you
flclisgreat
01-30-2007, 10:46 PM
it really depends on the quality of the psu, and how many watts the 12v line is rated for
ic3cold
01-30-2007, 10:51 PM
The +12v has 18A as I posted ...
flclisgreat
01-30-2007, 11:04 PM
that doesn't mean thats how many watts can can be provided by the 12v line
ic3cold
01-30-2007, 11:52 PM
???
Please forgive my ignorance but then from where can I find out the actual output of the +12v line???

I already read about 10 or 20 threads and apparently if it's marked that way it supposed to deliver that ... ????

I'm confused ... :confused:
MrWicked1968
01-30-2007, 11:53 PM
I would say no. "OEM psu" is scary enough, but when you say you want it to power an X1950 pro, well, that's mo' betta scarier.
CAD4466HK
01-31-2007, 12:02 AM
???
Please forgive my ignorance but then from where can I find out the actual output of the +12v line???

I already read about 10 or 20 threads and apparently if it's marked that way it supposed to deliver that ... ????

I'm confused ... :confused:

What you need to do is look at the label for the combined{+12v, +5v,+3.3v}
wattage , but being a "OEM 450" PSU, I doubt it has these listed;)
CAD4466HK
01-31-2007, 12:04 AM
I would say no. "OEM psu" is scary enough, but when you say you want it to power an X1950 pro, well, that's mo' betta scarier.

Can you say BBQ?:lol:
Bbq
01-31-2007, 01:54 AM
Someone called for me?