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mkg
03-08-2007, 07:59 AM
I’m new here so please forgive me if I sound noobish.

I was wondering if my system could use an X1950 PRO AGP. I have read that you need 30A on the 12V rail. My PSU is 500W and has dual 12V rails one at 15A and one at 14A. Is two better than one or would I need to get a new PSU to power it. If I need to get a new PSU I would most likely wait till my next major upgrade which I will be waiting about one or two years till that happens.

KARacing
03-19-2007, 10:43 PM
You need to consider the power req for the rest of your system - typically the dual rail is a good thing. You need to consider the power req by the CPU as the single biggest power consumer other than the graphics card.

The other thing to consider is the efficiency of the power supply you have. I have seen lots of PSU advertised to be XXX Watts but the will not provide anything near the quoted when loaded due to poor efficiency.

After you determine the load of your system you can see what is left for your graphics card....

aliquidparadigm
03-20-2007, 08:29 AM
I’m new here so please forgive me if I sound noobish.

I was wondering if my system could use an X1950 PRO AGP. I have read that you need 30A on the 12V rail. My PSU is 500W and has dual 12V rails one at 15A and one at 14A. Is two better than one or would I need to get a new PSU to power it. If I need to get a new PSU I would most likely wait till my next major upgrade which I will be waiting about one or two years till that happens.You're going to need a new PSU; you're going to be waiting two years.



I own an x1950xt ($200 almost 6 months ago!), and, at full draw, it takes upwards of 24A, you will only be able to supply it with 15 per line, which means you need to use molex... basically, you probably COULD run it, but you will end up with issues when it starts pushing itself hard, and you'll have to make sure that you're using both lines... and that you don't have too many peripherals... and that your CPU and RAM don't take too many amps. The highest draw I've ever seen (artificially, through ATI Tool) for this card is 32.5A, and that's more than you have available.

mkg
03-24-2007, 03:26 AM
Ok regarding the system power usage I have a very humble system. I added it up a while back and all I needed was 300 watts.

P4 3.0 GHz w/HT
1024 GB Ram
160GB Hard Drive
DVD writer
X1300 AGP
and my 3Dmark score is a lousy 776, 956 w/overclocking

PS. I did some research and found that the 30A assumes a fully loaded system. Lol I wish they told me what a fully loaded system was. Thanks for the help by the way. Also with ATI Tool 32A was that overclocked or not, with my specs that close i would not overclock.

Mike
03-24-2007, 02:12 PM
You're going to need a new PSU; you're going to be waiting two years.



I own an x1950xt ($200 almost 6 months ago!), and, at full draw, it takes upwards of 24A, you will only be able to supply it with 15 per line, which means you need to use molex... basically, you probably COULD run it, but you will end up with issues when it starts pushing itself hard, and you'll have to make sure that you're using both lines... and that you don't have too many peripherals... and that your CPU and RAM don't take too many amps. The highest draw I've ever seen (artificially, through ATI Tool) for this card is 32.5A, and that's more than you have available.

He said an X1950 Pro, not an XT. The draw on a pro should be noticeably less, 500W should be fine.

aliquidparadigm
03-25-2007, 05:08 AM
He said an X1950 Pro, not an XT.Wow, I completely missed that. (c:

Yeah, big time smooth.