How many amps do I need for an 8800gt?

steelmole · 01-29-2008, 06:50 PM

Atm I've got 18A on the 12 volt rail.

ThatGuy16 · 01-29-2008, 07:09 PM

I would recommend a better power supply, do you know how much you can spend on a new one. And what are your current system specs?

steelmole · 01-29-2008, 07:23 PM

Well, I'm limited by my case being an Antec Nsk1300. Basically the power supply is L shaped, to accomodate for the cpu cooler. Fitting a regular power supply would probably entail cutting the back off the case and leaving it sticking out loads.

My pc is an intel Q6600, a sata optical drive and a sata hard drive.

JLV2k5 · 01-29-2008, 07:24 PM

what is the wattage on the current psu, and the form factor please? Thank you

steelmole · 01-29-2008, 10:31 PM

The power supply is 300w. Antec ar300. Here's a picture if you want to get an idea of the shape:

As you can see, L-shaped and not very big. A bit tricky really. Someone suggest using a vga power supply, but that would use up my only 5.25" drive bay. I was wondering if there are any supplemental power supplies around that are a bit smaller.

Kesava · 01-29-2008, 10:36 PM

your psu-minimum required

300w-400w
36-26

so your fine for amps but you need a better psu. maybe a 430 or 500 watt just to be safe

Darkserge · 01-29-2008, 11:54 PM

Quote:

Originally Posted by steelmole

Atm I've got 18A on the 12 volt rail.

Get better power supply or your video card will get overheated and videocard fan will fail. It cause from not enough Amps and It will melt the plastic cover of Videocard.

Kesava · 01-29-2008, 11:57 PM

Quote:

Originally Posted by Darkserge

Get better power supply or your video card will get overheated and videocard fan will fail. It cause from not enough Amps and It will melt the plastic cover of Videocard.

18 isnt the total amps. im not sure how it works but you have to double what it says or something. basically my PSU puts out 36 amps.. and it only says 18.

same for his. the amps arent a problem. the wattage is.

steelmole · 01-30-2008, 03:51 PM

They come together guys. Power = current x voltage. Since the graphics card is on 12v if you want to go from power to current you just divide by 12. Better to give the current because the power is for the whole power supply including other rails. Now can anyone tell me how much current it will draw?

jacklazara · 01-30-2008, 04:28 PM

I think 400w will be enough

01-29-2008, 06:50 PM	#1 (permalink)
steelmole New Member Join Date: Nov 2007 Posts: 18	How many amps do I need for an 8800gt? Atm I've got 18A on the 12 volt rail.

01-29-2008, 07:09 PM	#2 (permalink)
ThatGuy16 Diamond Member Join Date: Apr 2007 Location: USA Posts: 5,105	I would recommend a better power supply, do you know how much you can spend on a new one. And what are your current system specs? __________________ CPU: C2D E8400 @ 4Ghz 1.23v HSF: Apogee GTX MB: Gigabyte X38-DS4 Ram: 2x2GB G. Skill DDR2-1068 HDD: 320GB Seagate PSU: OCZ GameXStream 700w OS: Vista Home Premium 64bit GFX: HD3870 @ 837/1152 LCD: LG 22" L226WTQ My Old 3DMark06: 20008 =(

01-29-2008, 07:24 PM	#4 (permalink)
JLV2k5 Diamond Member Join Date: Dec 2007 Location: University of Delaware Age: 21 Posts: 1,300	what is the wattage on the current psu, and the form factor please? Thank you __________________ Can't wait to finish college and build my system.

01-29-2008, 10:36 PM	#6 (permalink)
Kesava Diamond Member Join Date: Jul 2007 Location: India Age: 17 Posts: 3,103	your psu-minimum required 300w-400w 36-26 so your fine for amps but you need a better psu. maybe a 430 or 500 watt just to be safe __________________ formerly Kuzba Cpu:Intel Q6600 2.4Ghz @ 3.4Ghz Hsf:Zalman CNPS 9700 LED Ram:Generic 2 Gb 800 Mhz Gpu:XFX 8800 GT 512mb @ 700/1750/2000 Mobo:Gigabyte P31-DS3L Case:Centurion 532 3dmark06:13518 MSN=kesava8@hotmail.com

01-30-2008, 04:28 PM	#10 (permalink)
jacklazara Bronze Member Join Date: Jan 2008 Posts: 41	I think 400w will be enough __________________ remove malwarecrush Xpantivirus Remove VirusHeat

01-29-2008, 07:23 PM	#3 (permalink)
steelmole New Member Join Date: Nov 2007 Posts: 18	Well, I'm limited by my case being an Antec Nsk1300. Basically the power supply is L shaped, to accomodate for the cpu cooler. Fitting a regular power supply would probably entail cutting the back off the case and leaving it sticking out loads. My pc is an intel Q6600, a sata optical drive and a sata hard drive.

01-29-2008, 10:31 PM	#5 (permalink)
steelmole New Member Join Date: Nov 2007 Posts: 18	The power supply is 300w. Antec ar300. Here's a picture if you want to get an idea of the shape: As you can see, L-shaped and not very big. A bit tricky really. Someone suggest using a vga power supply, but that would use up my only 5.25" drive bay. I was wondering if there are any supplemental power supplies around that are a bit smaller.

01-30-2008, 03:51 PM	#9 (permalink)
steelmole New Member Join Date: Nov 2007 Posts: 18	They come together guys. Power = current x voltage. Since the graphics card is on 12v if you want to go from power to current you just divide by 12. Better to give the current because the power is for the whole power supply including other rails. Now can anyone tell me how much current it will draw?

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