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9800gtx+ power supply

Forum Graphic & Displays : Graphics Cards - 9800gtx+ power supply

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geoff123_40   10-11-2008 at 03:48:06 PM

hey,

currently running a 9800gtx with a 650w PSU which has 4x 18A rails. I'll assume the 2x pci'e connectors run off only 1 rail, as the cable branches out into 2x pci-e connectors. My rig is an E6400@3.2ghz, 2x2gig ddr800 memory 4-4-4-12 with a gigabyte 965p s3 mobo.
i noticed my warhammer lags horrible in huge fights, and i suspect could it be that I only have 1 rail connected into the graphics card?.
Would it be safe to use 2x molex > 1x pci-e on one of my other rails which are in use by the dvd. So that i have 2 rails connected to the card?

any help would be appreciated.

thanks

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DellUser1   10-11-2008 at 03:54:08 PM
- 0 +

Here's a fairly simple reply, you're card uses less than 10 amps of power.

Message quoted 1 times
------------------------------ q9650 @ 4.050 | Asus Rampage Formula | 2x2 Corsair Dominators | WD Black 640 x2
EVGA GTX260 Core216 @ 686/1479/1103 | Antec TPN 750

 

Reply to DellUser1

geoff123_40   10-11-2008 at 03:59:21 PM
- 0 +

hrmmmmmmm, maybe i need a fresh reinstall. or do you think a later bios version would help?....I cleaned all drivers with driver cleaner pro prior to installing the card, defragmented, tried drivers that came with box, and latest drivers from nvidia. any idea what the problem could be?

Reply to geoff123_40
Shadow703793   10-11-2008 at 04:14:53 PM
- 0 +

DellUser1 wrote :

Here's a fairly simple reply, you're card uses less than 10 amps of power.


True, that's ~ how much the card uses. But that's cutting it close. Usually the minimum recommended is 17A on the +12 rail.

 

@OP: Mind listing the exact PSU you have?

Message quoted 1 times
Message edited by Shadow703793 on 10-11-2008 at 04:15:49 PM
------------------------------ http://farm3.static.flickr.com/2617/3815217176_0a5be7955d_o.gif
http://farm4.static.flickr.com/3553/3818083596_1a772f7162_o.gif
 Reply to Shadow703793
geoff123_40   10-11-2008 at 04:24:04 PM
- 0 +

superflower 650w, 4x 12V rails, 18As each

Reply to geoff123_40
DellUser1   10-11-2008 at 04:30:31 PM
- 0 +

Shadow703793 wrote :

True, that's ~ how much the card uses. But that's cutting it close. Usually the minimum recommended is 17A on the +12 rail.

@OP: Mind listing the exact PSU you have?


By his own admission he's got four 18 amp rails, and with the PEG connector generally on it's own rail, power isn't the likely cause of the problem.
I always like to keep invisik in mind, he's the forum member running dual GTX260's (11 amps consumption per card ) on a Antec EA500 with it's dual 17 amp rails.

------------------------------ q9650 @ 4.050 | Asus Rampage Formula | 2x2 Corsair Dominators | WD Black 640 x2
EVGA GTX260 Core216 @ 686/1479/1103 | Antec TPN 750

 

Reply to DellUser1

major53   10-11-2008 at 04:30:33 PM
- 0 +

geoff123_40 the way I have my 9800gtx hooked up is I have 2 (6) pin pci-e molex cables hooked up to the video card.the psu is a ocz 700 with 4 rails @ 18 amps each.hope this helps you out


Message edited by major53 on 10-11-2008 at 04:32:44 PM
------------------------------ ▐ ASUS RAMPAGE EXTREME II ▐ I7 920 ▐ 3 GIG CORSAIR 1600 ▐ BFG 280 GTX ▐ ANTEC 850 PSU ▐ ANTEC 900 CASE ▐ ACER 22" 2216WB LCD ▐ SAITEK ECLIPSE II ▐ LOGITECH G5 ▐
 Reply to major53
Shadow703793   10-12-2008 at 07:58:19 PM
- 0 +

Well the PSU has the enough amps. But I would doubt that PSUs stability/quality (ie +12 rail stability, etc). Do be careful with that PSU.

------------------------------ http://farm3.static.flickr.com/2617/3815217176_0a5be7955d_o.gif
http://farm4.static.flickr.com/3553/3818083596_1a772f7162_o.gif
 Reply to Shadow703793
major53   10-13-2008 at 10:37:12 PM
- 0 +

geoff123_40 superflower 650w, 4x 12V rails, 18As each.


I would have to agree with Shadow703793 Well the PSU has the enough amps. But I would doubt that PSUs stability/quality (ie +12 rail stability, etc). Do be careful with that PSU. [#ff0000][/#ff0000]


never heard of a superflower got to be a low end psu.myself I wouldn't chance it on a new 9800gtx,but it's your call.

------------------------------ ▐ ASUS RAMPAGE EXTREME II ▐ I7 920 ▐ 3 GIG CORSAIR 1600 ▐ BFG 280 GTX ▐ ANTEC 850 PSU ▐ ANTEC 900 CASE ▐ ACER 22" 2216WB LCD ▐ SAITEK ECLIPSE II ▐ LOGITECH G5 ▐
 Reply to major53
geoff123_40   10-15-2008 at 11:49:11 AM
- 0 +

hrmmmmmm....superflower comes out of the same factory as enermax and errr cant remember the second brand think it was toppower :S

Reply to geoff123_40
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