is my power supply enough for a 7900gt.

[TanisHalfElven]

ok here the problem. when i assembled my computer in January i had no idea about PSUs so i just bought a 400W one from a local retailer. i do not even know its model number.

here are the things i can tell you about it.
its says model: vento 3600 (searching google tell me this is actually a case by asus but no PSU)
+5V : 30 A
+12 V : 12 A
+3.3 V :26 A
SB+ 5V :2 A
-5V :0.5 A
-12 V :0.8 A

please help[. my knowledge of PSU is severely limited.

 

[broly8877]

12v is damn weak... I'd get a new quality PSU. (Enermax, Fortron, Antec, etc)

 

[TanisHalfElven]

ok then. i suppose that rules out the possibility of a x1800xt. would a 7600gt work on this PSU. also is there a way i can measure the voltage current on the 12V rail.

 

[skooma]

This is a good site that should help you pick out an appropriate psu.

Also look at enhance psu's from ewiz. They make psus for silverstone, among others. I just got a 0560g from them and its sweet.

 

[redbox]

I wouldn't use that powersupply at all with that motherboard. You are much better with getting a new one. In my opinion a good powersupply is essential. If it goes out so could all of your other components so better to spend some money on a good one istead of a whole new rig. I have the OCZ powerstream which is a bit expensive I would take the advice of broly8877 a good fortron would set you right plus their cheap as far as good powersupplies go.

 

[skooma]

Aye, the powerstream is nothing but a rebadged fortron. All you spend the extra money on is the ocz name.

like this silverstone reviewed here is nothing but the <a target=_blank class=ftalternatingbarlinklarge href="http://www.ewiz.com/detail.php?p=PS-EN0560G&c=fr&pid=1e39bde240f9fa7533d
<b">0560g</a>. But the enhance is ~ $50 cheaper

 

[996GT2]

I'm using a Fortron 400W PSU with the components listed in sig...it's working very well and is very quiet. The 450W version of the same PSU would power a single X1800XT nicely, although if you are wanting to get a very high end PSU you may want too look at 500+ watt units from Fortron and Enermax, along with Silverstone and the like.

 

[redbox]

Originally posted by: skooma
Aye, the powerstream is nothing but a rebadged fortron. All you spend the extra money on is the ocz name.

like this silverstone reviewed here is nothing but the <a target=_blank class=ftalternatingbarlinklarge href="http://www.ewiz.com/detail.php?p=PS-EN0560G&c=fr&pid=1e39bde240f9fa7533d
<b"><b">0560g</a>. But the enhance is ~ $50 cheaper

Tis true that OCZ has a rebadged fortron but it is the GameXStream not the powerstream

 

[skooma]

Thats right, the powerstreams were topowers.

 

[Nextman916]

Sorry absolutely NO possible way that psu will run a 7900gt in that system, even if the best psu maker in the world made a psu with only 12a on the +12v it wouldnt run. Especially with that system, i honestly dont even know how your getting by with an x800gt. Go with something around 450-500w of power with at least 28amps on the 12v. That way you'll be safe even if you OC you opteron or your gpu.

 

[Powermoloch]

Originally posted by: tanishalfelven
ok here the problem. when i assembled my computer in January i had no idea about PSUs so i just bought a 400W one from a local retailer. i do not even know its model number.

here are the things i can tell you about it.
its says model: vento 3600 (searching google tell me this is actually a case by asus but no PSU)
+5V : 30 A
+12 V : 12 A
+3.3 V :26 A
SB+ 5V :2 A
-5V :0.5 A
-12 V :0.8 A

please help[. my knowledge of PSU is severely limited.

HURRY GET A NEW ONE !!!!

 

[TanisHalfElven]

thanks guys. i had no idea i was in such a bad shape. i'll try to find a fortron 400W PSU where i live (pakistan). too ad i can't just get it from newegg. maybe when i go to UofT (canada)

edit :after thought.
guys is there anyway to measure the current oin the 12 V. i think maybe its incorrectly listed cuz the 300W version is supposed to have 18 A on the 12 V.


THANKS

edit 2.
ok i found this nice link.
http://www.jonnyguru.com/atx/index.html

mine is a 20 pin supply.
the guy says

To test the power supply, you can do this: Unplug the power connector from the motherboard. Connect the green and black wires on the power connector with a paper clip or a piece of wire. This will energize the power supply. Now, using a multimeter, the 12V should read 12V, the 5V should read 5V and the 3.3V should read 3.3V (within +/- 5% per Intel specifications.)

suppose if i were to get a multimeter would it be possible to read the current through the 12 rail. would that current be the max possible ?

 

[acegazda]

yeah, get a new psu b4 it blows up and ruins all your components. I'd recommend an enhance 5150gh from ewiz. Easily enough for a 7900gt, even volt modded, not to mention an oced cpu and a couple hard drives.

 

[redbox]

Originally posted by: skooma
Thats right, the powerstreams were topowers.

topowers?

 

[BassBomb]

fellow torontonian/pakistani

head over to wintroniccomputers or canadacomputers they have pretty good deals when picking up no shipping

ncix good for online

 

[TanisHalfElven]

Originally posted by: BassBomb
fellow torontonian/pakistani

head over to wintroniccomputers or canadacomputers they have pretty good deals when picking up no shipping

ncix good for online

currently in pakistan. will move to toronto for studies this September.

 

[Navid]

Originally posted by: tanishalfelven
suppose if i were to get a multimeter would it be possible to read the current through the 12 rail. would that current be the max possible ?

NO!
That is very dangerous. You are not supposed to connect a current meter to the output of a voltage source. That is like shorting the output, which can cause a spark to fly and possibly cause lots of damage and even possibly bodily injury!

 

[TanisHalfElven]

Originally posted by: Navid

Originally posted by: tanishalfelven
suppose if i were to get a multimeter would it be possible to read the current through the 12 rail. would that current be the max possible ?

NO!
That is very dangerous. You are not supposed to connect a current meter to the output of a voltage source. That is like shorting the output, which can cause a spark to fly and possibly cause lots of damage and even possibly bodily injury!

really. OH crap . iweas about to try it out. THANKS.
well i guess i'll just rely on p95 and 3d mark 06 and atitool to see if my PSU is enough for the moment. i'll definatly get a new one when i upgrade to a 7900gt.

 

[SolMiester]

OP, dont want to hijack thread, however a just bought 460w Thermaltake w0064 to power below rig + sequential 32gb tape drive on scsi.

Saw some good reviews, but think it is probably last years model......

 

[akshayt]

what system do you have?

depending on it get a quality 450-500 watts or higher.
Consider Fortron and OCZ as well.

 

[SolMiester]

Originally posted by: akshayt
what system do you have?

depending on it get a quality 450-500 watts or higher.
Consider Fortron and OCZ as well.

<Me?> as per sig!