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BFG Geforce 7800 GS OC AGp, will my powersupply be enough?

Forum Graphic & Displays : Graphics Cards - BFG Geforce 7800 GS OC AGp, will my powersupply be enough?

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chinadude310   02-05-2007 at 01:40:30 AM

I'm trying to get a new AGP card over my GF 6800 128mb, so I can be good for another year before I upgrade to PCI-E. One problem, on the BFG site it states it requires "A minimum 400W system power supply (with 12V current rating of 20A or more)". My powersupply has 420W, but on the 12V it is only 13A. No idea what it means, but is being 8A short going to be a problem? This is my powersupply.

Anyone got an idea if I'm going to able to run the card on my powersupply? :?:

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madmurph   02-05-2007 at 02:23:32 AM
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Yes, it's going to be a problem. That is a super cheap PSU, less than $20 on NewEgg. Make a good investment towards your new system and get a decent PSU. Otherwise, investing in the video card is a waste of money, and you're at risk of blowing not only the PSU, but other stuff, too. Look at the "sticky" in the power supply forum -- PSU 101.

Reply to madmurph
enforcerfx   02-05-2007 at 03:10:34 AM
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Don't press your luck, sorta like madmurph said. This would even sufficent and comes at a fair price:

http://www.newegg.com/Product/Prod [...] 6817153044

Reply to enforcerfx
sarsoft   02-05-2007 at 03:54:37 AM
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Your PSU will not be enough. Get something like this to be safe and its 54 bucks. With 2 year warranty.

http://www.newegg.com/Product/Prod [...] 6817104954

Reply to sarsoft
madmurph   02-05-2007 at 04:51:36 AM
- 0 +

Sarsoft:

He needs a new PSU, you need a new quarterback. My condolences.

Reply to madmurph
sarsoft   02-05-2007 at 05:02:42 AM
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Oh cant read. I think your eyes are playing tricks on you buddy read again my post.
Dont mess with REX or he will bite your head off.

Reply to sarsoft
chinadude310   02-05-2007 at 07:44:12 AM
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Thanks. I think I should buy this so when I upgrade to PCI-e later on I can still use this power supply right?

Reply to chinadude310
Simonetti   02-05-2007 at 12:57:25 PM
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chinadude,

I have the exact same BFG 7800 GS OC. It's a GREAT card, and I can play most games at max settings. A good PSU is very important, although most people tend to ignore it's due importance.

Get a good PSU, 480W or more, and it will last you a lifetime.

I've had PSU woes in the past, when I first bought a high-performance GPU (then it was the NVidia TI 4600). My PSU didn't have the proper rail amperages, although its power rating was acceptable.

The card crashed and eventually burnt.

Reply to Simonetti
enforcerfx   02-05-2007 at 09:34:42 PM
- 0 +

It won't last a lifetime so to speak, but guaranteed if their is no flaws in the beginning when hooking and setting the powersupply up, you will have it for a good long time.

Reply to enforcerfx
sarsoft   02-05-2007 at 10:15:12 PM
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Quote :

Thanks. I think I should buy this so when I upgrade to PCI-e later on I can still use this power supply right?


It all depends what PCI-e card you are going to get. Also if you plan to buy a video card year from now different video cards will emerge and no one knows what the PSU requirements are going to be for a video card. You will probably have to buy a different PSU year from now. Thats how technology envolves.

Reply to sarsoft
chinadude310   02-05-2007 at 10:35:28 PM
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Well I guess if i got a PCI-e system and something like a Geforce 8800GTX as an upgrade later on this power supply would work. It requires a PCI-e compliant power supply, 450W, and a combined 12V rating of 30A or more and that one fits the shoe. But then again I'm not sure if that would be for sure the card I would upgrade, so I guess I'll just worry about getting a PSU that will work for this card. Thanks everyone

Reply to chinadude310
sarsoft   02-05-2007 at 10:55:09 PM
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FSP Group (Fortron Source) AX450-PN will be pleanty for the 7800gs but not 8800gtx. You are going to be looking for something more powerfull for 8800gtx. 8800gtx need around 33-36amps on +12V rails. If you plan to go with single 8800gtx these PSU's will be pleanty to power that card.

These will give you plenty of power to OC. These will work with only one 8800gtx and not in SLI mode. You will need around 54-56 amps with two 8800gtx in SLI mode.
Antec NeoPower NeoHE 550 $110 42A
http://www.newegg.com/Product/Prod [...] 6817103941
CORSAIR CMPSU-520HX $130 40amps
http://www.newegg.com/Product/Prod [...] 6817139001
FSP Group (Fortron Source) FX600 $120 48amps
http://www.newegg.com/Product/Prod [...] 6817104025
SILVERSTONE ZEUS SST-ST65ZF $140 42amps.
http://www.newegg.com/Product/Prod [...] 6817163108

Reply to sarsoft
chinadude310   02-05-2007 at 11:12:51 PM
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Hmm those might be a little more than I want to spend on a powersupply since I got to buy the card too. I suppose its better to just get a ~$50 one that will be good for this card now, since I don't even know exactly what I will upgrade to later on. Plus maybe they'll get cheaper as time goes on? Or does PSU price pretty much stay the same? Haven't noticed the pricing trend of PSU's.

Reply to chinadude310
sarsoft   02-05-2007 at 11:20:21 PM
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Preaty much the prices do go down a little. Usually new PSU models will appear and older models are going to be discontinued. Remember 8600 and 8300 and r600 are on its way.

Reply to sarsoft
chinadude310   02-06-2007 at 03:24:04 AM
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I didn't want to order the PSU from online, but the only PSU I found that was fairly cheap at my local frys was this one.

http://www.newegg.com/Product/Prod [...] 6817371004

I read the PSU reference thread and didn't see them mention Antec Basiq, so I don't know if its any good. I also saw a Thermaltake pure power 500W and have enough amps for the same price. Are either of them okay?

Reply to chinadude310
chinadude310   02-06-2007 at 06:53:27 PM
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Pretty sure its this one.

http://www.newegg.com/Product/Prod [...] 6817153028

The Antec Basiq looks to be better since it has 18A on both 12V, while Thermaltake has 14A and 15A. They cost the same too.

Reply to chinadude310
sarsoft   02-06-2007 at 08:53:15 PM
- 0 +

Which ever you pick will be enough for your system.

Good luck.

Reply to sarsoft
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