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New Rig Video Card Question

post #1 of 7
Thread Starter 
I am building a new rig here before the end of the year with an e6300, 2gb ram, etc. I am overclocking the e6300 to probably around 3.0. My PSU is the OCZ Gamer 600W one. Anyway, my friend is doing the overclocking for me because he has done it quite a bit and I never have. But to the point.....
I am trying to find the best possible deal on a video card I can now but not spend toooo much money since dx10 is impending. At first I thought I'd go the ATI route and get a x1950pro or something alone those lines for about $170-$200. Well I got to thinking and read a few threads....and the 7900gtx would be the card of my choice basically I think because I just naturally love nvidia, but it is insanely expensive. But as I was reading on here...people are mentioning being able to buy 7900gs's and 7900gt's and OC them to gtx speeds and possibly beyond. Anyway, my main question is....which card can I get and OC without too much difficulty to 7900gtx status? Also would my 600w OCZ Gamer PSU be sufficient? And lastly, how does one go about overclocking the video card? I'm sure my friend knows and will do it for me but it would be nice for me to learn myself and be able to do it.
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
e6300 @ 2.8 P5B-Deluxe 8800gts evga 2gb ddr2 
Hard DriveOptical DriveOSMonitor
160gb 7200rpm DVD-Rom XP Home 22" Sceptre Wide LCD 
PowerCase
700w OCZ Thermaltake Armor Series 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
e6300 @ 2.8 P5B-Deluxe 8800gts evga 2gb ddr2 
Hard DriveOptical DriveOSMonitor
160gb 7200rpm DVD-Rom XP Home 22" Sceptre Wide LCD 
PowerCase
700w OCZ Thermaltake Armor Series 
  hide details  
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post #2 of 7
Yes, a 7900GT can be overclocked to GTX speeds (and beyond with a volt mod - I'm sure your friend will be happy to do this). The best software to overclock Nvidia cards is Rivatuner or ATI Tool Beta 0.26 (has built in stress test). Rivatuner has an auto-overclock feature. With ATI Tool, you just increase the clock speed by small amounts at time, testing it's stability with the stress test.

And yes, your 600W PSU will be easily enough.
post #3 of 7
Thread Starter 
So can I just look for the best deal on a 7900gt? I see 7900gt's with core clock speeds anywhere from like 425mhz to 550mhz, give or take. I guess I'm saying could I get a 450mhz core clock version and still be able to easily OC it to gtx level or higher?
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
e6300 @ 2.8 P5B-Deluxe 8800gts evga 2gb ddr2 
Hard DriveOptical DriveOSMonitor
160gb 7200rpm DVD-Rom XP Home 22" Sceptre Wide LCD 
PowerCase
700w OCZ Thermaltake Armor Series 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
e6300 @ 2.8 P5B-Deluxe 8800gts evga 2gb ddr2 
Hard DriveOptical DriveOSMonitor
160gb 7200rpm DVD-Rom XP Home 22" Sceptre Wide LCD 
PowerCase
700w OCZ Thermaltake Armor Series 
  hide details  
Reply
post #4 of 7
Yeah. Mine was the cheapest I could find at the time, and I overclocked the hell outta it. Im not exactly too sure if you can hit GTX speeds without a volt mod, but they overclock easily.

I've kinda damaged it while doing a pencil mem volt mod (lead got somewhere it shouldn't have) , but that's only to increase the voltage for the memory, which only gives you a tiny boost, so I personally suggest not doing this.

The easiest way to do a volt mod to the core is to buy an electronics conductive pen, and follow the volt mod guide on overclock.net. Easy peasy, and gives you roughly a 250MHz boost (conservative guess - cant remember), taking you past GTX speeds.
post #5 of 7
Thread Starter 
Ok, so the 600w psu I have will be okay for OC'ing the cpu and gpu.....I got a Zalman Fan to throw on the cpu and the case has 2x80mm fans and 2x120mm fans I believe. Will all of this be easily enough for cooling or should I get another fan to throw on the 7900gt since it will be getting oc'ed as well?
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
e6300 @ 2.8 P5B-Deluxe 8800gts evga 2gb ddr2 
Hard DriveOptical DriveOSMonitor
160gb 7200rpm DVD-Rom XP Home 22" Sceptre Wide LCD 
PowerCase
700w OCZ Thermaltake Armor Series 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
e6300 @ 2.8 P5B-Deluxe 8800gts evga 2gb ddr2 
Hard DriveOptical DriveOSMonitor
160gb 7200rpm DVD-Rom XP Home 22" Sceptre Wide LCD 
PowerCase
700w OCZ Thermaltake Armor Series 
  hide details  
Reply
post #6 of 7
Thread Starter 
Also another question, I am finding many 7900gs's with faster core clocks than some 7900gt's I am looking at.If it saves me money, should I get a 7900gs and OC it likek you said with the program (you guessed about 250mhz to core clock)? I mean it seems that would give me the same video card as the GT would.....unless I am missing another difference which I could be. But I am specifically looking at a 7900gt with 450mhz core clock and am looking at numerous GS's with at least 500 mhz core clock. And also....
Should I be considering ATI? The x1950pro is fairly cheap and the standard core clock on it hits in at 600 or 625mhz on most....could this be overclock just as much as the GS or GT? If so that would be amazing....Let me know anyone! Thanks a ton!
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
e6300 @ 2.8 P5B-Deluxe 8800gts evga 2gb ddr2 
Hard DriveOptical DriveOSMonitor
160gb 7200rpm DVD-Rom XP Home 22" Sceptre Wide LCD 
PowerCase
700w OCZ Thermaltake Armor Series 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
e6300 @ 2.8 P5B-Deluxe 8800gts evga 2gb ddr2 
Hard DriveOptical DriveOSMonitor
160gb 7200rpm DVD-Rom XP Home 22" Sceptre Wide LCD 
PowerCase
700w OCZ Thermaltake Armor Series 
  hide details  
Reply
post #7 of 7
7900GS overclock amazingly, BUT they do not have 24 pp whereas the GS only has 20 pp. Only difference.
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