Jump to content


Photo
- - - - -

9800gx2 sli, another power question


  • Please log in to reply
17 replies to this topic

#1 punkishbloke

punkishbloke

    Member

  • Members
  • PipPip
  • 137 posts
  • Gender:Male
  • Location:UK

Posted 16 November 2009 - 06:12 AM

Hi ive been offerd a pair of 9800gx2's cheap so im thinking what the hey. i beleave i have enough power but not entirely sure so thought somone might be able to help.
im running a jeantech 1000w psu with 4 20amp rails set up like this

rail 1
m3n-ht motherboard
7750 cpu overclocked to 3.2
akasa nero heatsink

rail 2
currently 8800gt

rail 3
currently 8800gt

rail 4
3 x maxtor diamondmax 10 300gb hd in raid
sony dvdr
6 x system fans on my nzxt tempest

any ideas if i can and which combination of rails i should run them off?

---AMD FX-9590 @ STOCK---
---corsair H70---
---Asus Crosshair V Formula-Z 990fx---
---16gb Corsair Vengeance 1866Mhz---
---Nvidia Zotac GTX470 1280MBx2 sli---
---Corsair Force series 3 120gb---
---NZXT Tempest case---
---EVGA Supernova 850w PSU---


#2 CowKing

CowKing

    Phil ain't got nothin' on me

  • Members
  • PipPipPipPip
  • 1445 posts
  • Gender:Male
  • Location:Eagan, MN

Posted 16 November 2009 - 07:17 AM

i think optical drives and HDD use the 5v rail not the 12v rail and yes that looks like a a good setup for what you have
CPU: (Intel)[email protected]3.36GHz|1.4v
Power Supply: (Antec)BP550|550w
GFX Card: (PNY)GTX 460|800-1600-4000 biggest GTX 460 dud OCer
Motherboard: (Gigabyte)P35-DS3R |P35|
Memory: (Mushkin) Redline 2x2GB DDR2 1000|1050MHz 5-5-5-12|
Ayn Rand is the author for people who want to act like complete douche-bags, but don't have the balls to just admit that they are douche-bags.
"There are two novels that can change a bookish fourteen-year old's life: The Lord of the Rings and Atlas Shrugged. One is a childish fantasy that often engenders a lifelong obsession with its unbelievable heroes, leading to an emotionally stunted, socially crippled adulthood, unable to deal with the real world. The other, of course, involves orcs."

OCC Cool Club Member


#3 _TheAlexO

_TheAlexO

    Formerly ShallowBay

  • Members
  • PipPipPipPipPip
  • 2790 posts
  • Gender:Male
  • Location:Missouri

Posted 16 November 2009 - 08:11 AM

how much are you going to pay for the cards?
i ask because there could be better options for the price

My Skyrim ENB Album

Processor: Intel Core i5 3570k @4.4ghz | Motherboard: MSI z77a-g43 | Video Card: EVGA GTX 680 @1.3ghz core | Memory: 16gb Patriot ddr3 2133mhz (from OCC) | Case: Corsair 600T Alpine Edition | Power Supply: Corsair 700 Gamer Series

 | Speakers: Corsair sp2500 (from OCC) | Headset: Logitech G35 | Mouse: Logitech g500 | Keyboard: Corsair K60 Red Switches


#4 punkishbloke

punkishbloke

    Member

  • Members
  • PipPip
  • 137 posts
  • Gender:Male
  • Location:UK

Posted 16 November 2009 - 08:18 AM

Its from a friend im paying £100 for the 2 so very cheap.

---AMD FX-9590 @ STOCK---
---corsair H70---
---Asus Crosshair V Formula-Z 990fx---
---16gb Corsair Vengeance 1866Mhz---
---Nvidia Zotac GTX470 1280MBx2 sli---
---Corsair Force series 3 120gb---
---NZXT Tempest case---
---EVGA Supernova 850w PSU---


#5 damian

damian

    Nerd Life

  • Members
  • PipPipPipPipPip
  • 2768 posts
  • Gender:Male
  • Location:Tx

Posted 16 November 2009 - 09:13 AM

9800gx2 in SLI does not scale to well. Might want to reconsider.

#6 punkishbloke

punkishbloke

    Member

  • Members
  • PipPip
  • 137 posts
  • Gender:Male
  • Location:UK

Posted 16 November 2009 - 11:13 AM

yeah ive been told that but for a 100 quid i cant realy moan seen as a pair of gtx260 would cost me £300 which is so far out my price range its untrue and besides its should out perform my 2 8800gt's by a fair amount

---AMD FX-9590 @ STOCK---
---corsair H70---
---Asus Crosshair V Formula-Z 990fx---
---16gb Corsair Vengeance 1866Mhz---
---Nvidia Zotac GTX470 1280MBx2 sli---
---Corsair Force series 3 120gb---
---NZXT Tempest case---
---EVGA Supernova 850w PSU---


#7 Zertz

Zertz

    Total Nerd

  • Members
  • PipPipPipPipPip
  • 2574 posts
  • Gender:Male
  • Location:Quebec, Canada

Posted 16 November 2009 - 11:53 AM

I'd keep saving if I were you. The cards are relatively old, don't scale well and are vastly inferior on many aspects compared to current generation cards.

Some people are like slinkies - not really good for anything but they bring a smile to your face when you push them down the stairs.


#8 00stevo

00stevo

    Geek

  • Members
  • PipPipPip
  • 975 posts
  • Gender:Male
  • Location:Birmingham,U.K.

Posted 16 November 2009 - 12:03 PM

Quad SLI and Quad Crossfire are a waste.Dual cards can offer big increases but each card you add after that sees minimal increases.Id buy them anyway and sell them for a profit.
Core 2 Quad Q8300 @3.0ghz With Arctic Freezer 7 Pro
MSI P35 Platinum
4GB Corsair XMS2 DDR2 800 (2x2 GB)
500GB Caviar Black
ASUS Radeon HD5850
Windows 7 Pro x64
Samsung 37" LE37C530 HDTV
Corsair VX 550w
Coolermaster 430 Case With 2x blue fornt/rear fans + 2 green cold cathode tubes
Lite-On superfast DVD-RW (it really is fast!)

#9 ScapeGoat

ScapeGoat

    Member

  • Members
  • PipPip
  • 192 posts
  • Gender:Male
  • Location:Porto, Portugal

Posted 16 November 2009 - 12:55 PM

I have a question regarding the 9800GX2. With the drivers coming from a long way since it's release, does the GX2 still has some issues?

Edited by ScapeGoat, 16 November 2009 - 01:04 PM.

Q6600 G0 @ 3.0Ghz w/ Zalman CNPS9700NT | Abit Fatal1ty F-190HD | TeamElite 2GB DDR2 800Mhz @ CL4
XFX 9500GT GDDR2 @ 650/1625/450 | SAMSUNG 500GB SATA2 7200rpm | Nox Urano 600W | Windows 7 Ultimate x64


#10 Water_Hazard

Water_Hazard

    Geek

  • FW Team Member
  • PipPipPip
  • 556 posts
  • Gender:Male
  • Location:GA, USA

Posted 16 November 2009 - 01:09 PM

I have a question regarding the 9800GX2. With the drivers coming from a long way since it's release, does the GX2 still has some issues?


I have had one for about 6 months now and have yet to have any problems other than heat.

Main rig
Case:
Corsair 800D CPU: Intel I7 970 @ 4.2 1.37v H2O Cooler: Swiftech apogee XT MoBo: EVGA x58 Classified Memory:Patriot viper 12GB (3x4GB) DDR3 2000Mhz Video Card: 2xGTX 580
Storage:
2xOCZ Agility 2 120gb raid0, 2xWD black 640gb raid0 Power Supply: Antec True Power Quattro 1200w OS: 7 x64 Monitor: Dell Ultrasharp 3007wfp 2560x1600
Posted Image
"Drifting... Nothing like showing the guy in the other lane your taillights... Then looking in the rear view and seeing his face.'"


#11 ScapeGoat

ScapeGoat

    Member

  • Members
  • PipPip
  • 192 posts
  • Gender:Male
  • Location:Porto, Portugal

Posted 16 November 2009 - 01:19 PM

I have had one for about 6 months now and have yet to have any problems other than heat.


Because being a dual gpu card, at first it had some compatibility issues, bugs and micro stuttering. If those problems are gone I think that for the price putting both in quad sli 9800GX2 would be a good choice.

Edited by ScapeGoat, 16 November 2009 - 01:20 PM.

Q6600 G0 @ 3.0Ghz w/ Zalman CNPS9700NT | Abit Fatal1ty F-190HD | TeamElite 2GB DDR2 800Mhz @ CL4
XFX 9500GT GDDR2 @ 650/1625/450 | SAMSUNG 500GB SATA2 7200rpm | Nox Urano 600W | Windows 7 Ultimate x64


#12 Water_Hazard

Water_Hazard

    Geek

  • FW Team Member
  • PipPipPip
  • 556 posts
  • Gender:Male
  • Location:GA, USA

Posted 16 November 2009 - 01:24 PM

Because being a dual gpu card, at first it had some compatibility issues, bugs and micro stuttering. If those problems are gone I think that for the price putting both in quad sli 9800GX2 would be a good choice.


I dont know about quad sli with 2 9800gx2s. Im sure scaling to the 3rd and 4th gpu would be horrible. I would just pick them both up and turn around and sell one. Bet you could make most of your money back with a deal like that.

I would definitely post some benches with them in quad sli just to see how well they scale now compared to about a year ago before you sold the second one

Main rig
Case:
Corsair 800D CPU: Intel I7 970 @ 4.2 1.37v H2O Cooler: Swiftech apogee XT MoBo: EVGA x58 Classified Memory:Patriot viper 12GB (3x4GB) DDR3 2000Mhz Video Card: 2xGTX 580
Storage:
2xOCZ Agility 2 120gb raid0, 2xWD black 640gb raid0 Power Supply: Antec True Power Quattro 1200w OS: 7 x64 Monitor: Dell Ultrasharp 3007wfp 2560x1600
Posted Image
"Drifting... Nothing like showing the guy in the other lane your taillights... Then looking in the rear view and seeing his face.'"