9800GX2 for Folding
jared
College Station, TX Icrontian
Seriously, I'd love to find a GX2 for my main rig and move my 9800GT to a dedicated folding rig. I guess I just need to keep looking around because from what I've seen (and maybe because they are discontinued) everyone wants 3 bills or more for one.
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The beauty of the 9800GX2s is that you get the Folding power of two 8800GTs or 9800GTs while only using one PCI-E slot. Also, the 9800GX2 with both GPUs fully engaged consumes less power than two 88/9800GTs running at full core utilization.
New ones are pricey, yes. Look for lightly used.
Jared, YHPM.
Someone will have to explain to me how to setup dual GPU2 next wednesday
Whatever help you need setting it up, let me know, or open a thread. We'll get you cranking. Word of caution - put that sucker in a well ventilated case! Prepare to replace the thermal paste or consider underclocking. I've got a second one due in any time now from a private trade.
While you are waiting for your card to arrive, study this guide. Follow it exactly.
Recommend:
-- drivers 180.60 -> slighly lower GPU production than 178.xx but requires less than 1% CPU core utilization
-- well ventilated case, especially exhaust
-- FAHMon for monitoring the work units
-- replacing the factory TIM with TX2, MX2, or OCZ's good stuff
-- don't bother with core and memory overclocking, but DO overclock the shader clock *
-- Riva Tuner for overclocking the shader. Run the card with the fan set to automatic. If it runs too hot in that mode, then use RivaTuner to run the fan at 80 or 85%. It's not as loud as most single-GPU card fans. You can also use Nvidia System Tools for overclocking, but it does not allow you to set fan speeds.
Here's stuff that's not in the guide if I remember correctly:
-- In the Nvidia Control Panel, turn off multi-GPU/SLI - whatever it's called.
-- Go to Display Properties. In the "Display" drop-down, select the second GPU. Check the box, "Extend my Windows desktop onto the monitor." You may have heard about "dummy plugs" to use so that Windows will 'see' the second GPU and allow independent operations (second Folding client) on it. That is not necessary if you will be running Windows XP.
Didn't you also mention that you had picked up an additional 9600GSO? So now you have 2 x 9600GSO AND a 9800GX2?
when I get all set and done, I will have:
9800GX2 running two GPU2 clients
9600GSO running GPU2
9600GSO running GPU2
4850 running GPU2
E8400 running SMP
Cely 2.4 running normal client
Cely 2.4 running normal client
so thats what? ~20,000ppd?
thanks for the imput Leo
I'm going to keep a better eye out and see if I can find one that pops up over the holidays.
Quite a farm you got there fatcat, I got a lot of catching up to do
its in stock grab it while its hot and add 10k PPD to your farm!
The EVGA 9800 GX2s at Newegg are recertified, previously owned units, probably traded to EVGA on the Step-up program. They are factory warranted for 90 days. Just be advised: there is no Step-up and no one-year or lifetime warranties with these cards.
It's an excellent price, though. That is about the same price you'll find at the low end of the scale on private trading forums, that is, when you can find these suckers for sale at all. This is about $100 less than what they are going for on Ebay. (but the latter is no big surprise, Ebay being the minefield that it is)