X1900xtx

[x2 3600 rules sazakky]

I recently bought an X1900xtx and I read it requires about 20-30 anps on the 12v rail. My PSU is a generic 550watt psu and can only provide 18amps on the 12v rail. I have 2 hard drives and a dvd-drive connected to molex connectors.
Would the X1900xtx work in my computer.

 

[x2 3600 rules sazakky]

i need HELP

 

[Stumps]

probably not

 

[yacoub]

you've got my vote for worst username efficiency

 

[IlllI]

little impatient arent you?

 

[Elfear]

I wouldn't run that card with that generic PSU. 18A is pathetic for a "500W" PSU. A quality 400W would be just fine for that card.

 

[lyssword]

What will happen if it's not enough juice? will power supply burn out or something?

 

[x2 3600 rules sazakky]

What if I put my 550w psu (12v 18amp) as dedicated to my graphics card and a 430w as my system psu.

 

[Elfear]

I wouldn't bother with two PSUs. It more space, more of a hassle, and inefficient. You can get a very decent PSU that will easily handle your graphics card for $50-60.

 

[x2 3600 rules sazakky]

but i already have the 430 watt psu from an old computer and i wasted all my money on the x1900xtx ($270)

 

[Noema]

Originally posted by: lyssword
What will happen if it's not enough juice? will power supply burn out or something?

Nah, it'd probably just shut off as soon as a 3D app gets started.

 

[Capt Caveman]

$279 on a x1900xtx? Crap, I would have sold you mine for half of that. Honestly, spend $100 and buy yourself a good psu.

 

[tcsenter]

Originally posted by: x2 3600 rules sazakky
I recently bought an X1900xtx and I read it requires about 20-30 anps on the 12v rail. My PSU is a generic 550watt psu and can only provide 18amps on the 12v rail.

X1900XTX consumes about 9.75A MAX of +12V power:

X1900XTX graph

 

[x2 3600 rules sazakky]

would i be able to seperately run my 550w atx psu for my x1900. how is it possible to run a 550w psu without connecting it to a motherboard.

 

[Aeros]

Short #14 and #3 connectors...or the green wire to any black wire. It is recomended to use a PSU tester. However, a paperclip works... I used a "bobby pin".

It's fun to test components outside of a running computer. Especially fans ( noise test) and water cooling (leak test).

Problem with setting it as a dedicated power source for video, how would you have it start with your main system? Other then manually?

 

[Zstream]

Originally posted by: x2 3600 rules sazakky
I recently bought an X1900xtx and I read it requires about 20-30 anps on the 12v rail. My PSU is a generic 550watt psu and can only provide 18amps on the 12v rail. I have 2 hard drives and a dvd-drive connected to molex connectors.
Would the X1900xtx work in my computer.

Yes it will work, I was using a 380W Antec PSU without any issues.

 

[x2 3600 rules sazakky]

How would I short #14 and #3 connectors.

 

[Aeros]

Originally posted by: x2 3600 rules sazakky
How would I short #14 and #3 connectors.

Stick a paperclip end in each hole?

Remember it's the green wire and ANY black(ground) wire.

 

[Aeros]

 

[mrred]

make sure you have devices plugged into the PS before shorting those pins though

I have heard that an unloaded PSU will burn itself out when turned on

 

[humanure]

I ran my x1900xtx just fine with an antec smartpower 450W for awhile. I would just try it out before doing anything else, if the PSU won't handle it you'll just shut down.

 

[Stumps]

Originally posted by: humanure
I ran my x1900xtx just fine with an antec smartpower 450W for awhile. I would just try it out before doing anything else, if the PSU won't handle it you'll just shut down.

or burst in to flames...what ever comes first

 

[dug777]

Originally posted by: mrred
make sure you have devices plugged into the PS before shorting those pins though

I have heard that an unloaded PSU will burn itself out when turned on

The only time i ever tried it, without anything plugged in, and with the PSU case removed, and my face about 10cm from the insides, it did

Luckily it just scared the living crap out of me...

 

[humanure]

Originally posted by: Stumps

Originally posted by: humanure
I ran my x1900xtx just fine with an antec smartpower 450W for awhile. I would just try it out before doing anything else, if the PSU won't handle it you'll just shut down.

or burst in to flames...what ever comes first

well worth the risk. just wear one of these suits and you'll be fine.

 

[Captante]

Be advised that if your PSU fails under load theres a chance it'll take other more expensive components along with it when it goes ... for example your X1900XTX.

If you insist on skimping out on your PSU, you would be better off trying the Antec 430 watt instead on the generic 550 because at least it'll actually supply the amount of juice its rated for, however even if it appears to work fine you should upgrade to a quality 500 watt model as soon as you can afford it.