hardware dilema for my folding rigs

[Charloz24]

Ok I really got the folding bug and (also new hardware bug) so I'm now running a core i7 920 @ 4ghz (still on stock voltage... will maybe try more... but now I was testing it for folding). What I have to say is that the i7 is really impressive! (27500 ppd right now).

Ok here is my concern. I still have the Q6600 in my sig paired with a 9800 GX2. The thing I don't know... is where to put the GX2 to have the most PPD of my 2 system together. Other thing also is that the power supply that has the 6 pins and 8 pins plugs for the GX2 is right now on the core i7 system. I don't know if I want to put the GX2 on the core i7 system, because I will surelly lost a good amount of PPD running it 7 cores... but on the other side, if I put the GX2 with the Q6600 rig, I need a new powersupply (because the OCZ powerstream 520 didn't have the good connectors....

What do you think of this situation? My goal would be 40 000 PPD....

[Rison]

i'd buy a new power supply for the Q6600.

Of course, my goal too was 40k PPD, i'm currently around 60k PPD.. and have a new goal of 100k PPD.

see the trend? lol.

[_dangtx_]

hmmmmmm i say sell the q6600 gx2 rig and either use that cash for something else or build a folder only i7. cheap but good case, giga board and 1156 hyperthreading xeon to match :)

or wait for the fermi thing?

[boggtrotter59]

If your 520 watt has enough amps on the 12 volt rail to run the GX2, I would pair it up with your Q6600. You can always use adapters if your psu doesn't have the right connectors. 8 pin to 4 pin molex adapters are hard to find but a 6-pin will fit in the 8-pin connector. I've run cards using this setup without any issues, as long as the psu puts out enough juice.

[chrisk]

Yeah the adapters are not an issue. many video cards will come with molex to PCI-E adapters. I would worry more about having a psu thats powerful enough.

The Addiction strikes again.

[Charloz24]

and do you think the ocz powerstream 520 have enough juice for a q6600 @ 3300 paired with a 9800 GX2??

[Soultribunal]

Originally Posted by Charloz24

and do you think the ocz powerstream 520 have enough juice for a q6600 @ 3300 paired with a 9800 GX2??

I hate to say it mate, but you woundn't see me using an OCZ on that whatsoever. Sure in therory it has the juice to run it, but that I believe is an old FSP Platform and you'd give up the ghost fast if you were folding on it. Get a better PSU like a HX650 and you're set.

ST

[_dangtx_]

old indeed, the 12v rail is weaker than you think. theyre nice and quietm but dont overload it.

[Charloz24]

and how much ppd lost if I use my I7 on 7 cores instead of 8?

[matsta31]

you want to use your i7 on 7 core only to feed the GX2 ? No need, I currently run a i7 860 whit 2 Gx2 and runs bigadv on it on all 8 cores. All you need to do is use Bill's process manager and set the GPu cores at higher prirotiy.

To give you an idea, (eyeballing it, no math involved), On average I get about 25 000 PPD for the big adv (3.9 OC) and somewhere from 10 000 to 12 000 PPD per Gx2.

you are close to 40 K PPD if you put it all on the I7 rig. You may need to push some more voltage since the GPU + CPU running at 100% will add more stress.