There has been quite a bit of discussion of the cc_config.xml file but no one has mentioned where it should reside. Could someone please explain?

---

There has been quite a bit of discussion of the cc_config.xml file but no one has mentioned where it should reside. Could someone please explain?

You can find all the information about the structure of cc_config.xml (probably more that you would want to know :) at http://boinc.berkeley.edu/wiki/Client_configuration. The file lives in the folder that contains the "projects" folder i.e. the same folder that contains your client_state.xml and is listed early in Messages tab of Boinc Manager after a re-start of Boinc.

F.

---

Thanks.

---

@ Fred W
If you are about I have had a little success.
I have managed to get another GPU seen.
Now have 3 shown in Boinc as well,see Top Hosts FiveHamlet.
I think that it is either a driver problem most likely or a faulty
295 not so likely.
I am struggling to uninstall drivers as Vista finds new hardware and does it for me.
Is there a way of stopping this from happening?
Dave

---

@ Fred W
If you are about I have had a little success.
I have managed to get another GPU seen.
Now have 3 shown in Boinc as well,see Top Hosts FiveHamlet.
I think that it is either a driver problem most likely or a faulty
295 not so likely.
I am struggling to uninstall drivers as Vista finds new hardware and does it for me.
Is there a way of stopping this from happening?
Dave

Yeah.... Progress! How did you manage that?

To uninstall, I boot into Safe Mode and do it from there (Control Panel). I also run Driver Sweeper while in Safe Mode to remove all remnants of the Nvidia video drivers and PhysX.

F.

---

Hi Fred
I put 4 monitors on the 4 outputs and watched with the Everest software and then went to the nvidia control panel and got them all to work.
The only problem is, is that 1 of the monitors comes up in black and white.
This is on one of the cards.I have put that card into the first pcie slot and
tried again and still b and w.
If I now go to the nvidia control panel and if I try to change the clock speeds on GPU1 GPU2's cloccks change.
If I try to change GPU2's clocks then nothing happens.
Does that lot make any sence.LOL

Dave

---

Hi, Dave

Have you tried setting the clocks with EVGA Precision?

F.

[edit]And the B&W sounds like a dodgy GTX to me. Does it do the same with only that one GTX installed?[/edit]

---

One further thought. If both GTX's work OK individually, then the B&W could be an indication of insufficient power to drive 4 GPU's?

F.

---

Hi Again Fred.
After many hours now I have 3 GPU's crunching.
Both cards work individually and both GPU's show and work.
With both cards installed 4 monitors show ok and in colour (bad connection).
New psu the other day and a kill-a-watt shows only 550 watts drawn with 3 GPU's and 8 cpu threads crunching.Still 300 watts to go.
It may well be a faulty card as I said in an earlier post

If I try to change the clock speeds on GPU1 GPU2's clocks change.
If I try to change GPU2's clocks then nothing happens.

I will try and get this sorted by emailing BFGTech

Dave

---

Good luck. I'm still waiting to hear from XFX on my RMA (Scan sent it back to them with a "no fault found" report).

F.

---

Hi Again Fred.
After many hours now I have 3 GPU's crunching.
Both cards work individually and both GPU's show and work.
With both cards installed 4 monitors show ok and in colour (bad connection).
New psu the other day and a kill-a-watt shows only 550 watts drawn with 3 GPU's and 8 cpu threads crunching.Still 300 watts to go.
It may well be a faulty card as I said in an earlier post

If I try to change the clock speeds on GPU1 GPU2's clocks change.
If I try to change GPU2's clocks then nothing happens.

I will try and get this sorted by emailing BFGTech

Dave

please double check the current requirements of the 295 against what the rails of your psu can supply. all may look well but if the psu is not rated higher than the current requirement of the card from the rail odd things can happen. it is probably ok, but unless it is a deliberate action to eliminate the rails, then it always remains a question. also i don't know since i read conflicting things about this, but i always make sure that each plug into a single card is from a different rail. before, when i first put 2 cards in, and i still was running my 650 nothing reported wrong, but i got odd results , ping-ponging which card to use rather than using both at once etc. this behavior vanished when i changed to my 850. i looked at a lot of psu and most of the 850w units did not have enough current available on each rail (usually 1 rail was high enough but another one wasn't) except my antec so i chose that one.

---

Hi Chuck
The psu has dual rails it is a Cooler Master M850 and the rail outputs 18 and 28 amps.See here
http://uk.coolermaster.com/products/product.php?language=uk&act=detail&tbcate=641&id=2607

---

Hi Chuck
The psu has dual rails it is a Cooler Master M850 and the rail outputs 18 and 28 amps.See here
http://uk.coolermaster.com/products/product.php?language=uk&act=detail&tbcate=641&id=2607

ahh. it actually is a 6 rail supply. what worried me was the mention of only 2 rails and immediately my mind went to all of the items they had to feed.

as long as the 2 8pin/6pin pcie rail pairs can supply the above currents for each pair you are ok since each 295 requires approx 24amps.

if the 2 rails supply a total of 46a for both sets of pci-e pairs then it is marginal and could cause probs since both 295 need 48a. even in this scenario i think it should work though since the supply can peak at 1000w.

ok hehe my obsession with power availability is satisfied :) i was concerned because so many people pay no attention to this and wind up short-changed in selecting the wrong psu since there are several 850 psu that cannot handle this.

---

No problem Chuck I will look at anything that may cause it.
I have had a couple of PM's and they seem to comfirm that it
may be driver related. It looks as if the latest drivers cure
some problems and intrduce others in Vista and Windows 7.
Some of the other crunchers dual boot to XP.
XP's drivers work and see all gpu'S.
Dave

---

No problem Chuck I will look at anything that may cause it.
I have had a couple of PM's and they seem to comfirm that it
may be driver related. It looks as if the latest drivers cure
some problems and intrduce others in Vista and Windows 7.
Some of the other crunchers dual boot to XP.
XP's drivers work and see all gpu'S.
Dave

hehe i love software (not). fix or add something and break something else.
unfortunately this kind of thing will not be eliminated until computers begin writing software themselves without human input.

---

Well said Chuck.
Just go in to find my AMD out of work and the i7 with the 2 GTX295's has finished the cuda tasks and is now crunching 190 VLAR's on 8 threads.
No chance to send them to cuda.
So 24 hours time out of work, the other project I crunch for (Aqua) also has no work.
Still the upside is lower electric bill.Autumn is approaching and it is decidedly cooler today so hope for more work to warm the room up.

Dave

---

Well said Chuck.
Just go in to find my AMD out of work and the i7 with the 2 GTX295's has finished the cuda tasks and is now crunching 190 VLAR's on 8 threads.
No chance to send them to cuda.
So 24 hours time out of work, the other project I crunch for (Aqua) also has no work.
Still the upside is lower electric bill.Autumn is approaching and it is decidedly cooler today so hope for more work to warm the room up.

Dave

know what you mean... fortunately with the increased air flow through my case i find i don't have to keep the a/c as cold.. last 2 months my elect bill has been down by an average of $55 usd. where i live it is normal to have extremely high bills during summer peak and during winter peak mostly due to the shoddy insulation practices around here. only the newer houses built in the past 10 yrs or so have decent insulation.

---

Not sure if this information helps, but I had the same problem where my GT8800 was not being seen as an additional CUDA enabled device. I'm running windows 7, and i updated to the current drivers (190.38 - 62 was recently released) and still had the same problem.

I finally went to the NVIDIA Control Panel and enabled PhysX on the cards and 6.6.36 now properly detects both cards. Did you check to see if PhysX was enabled before changing all the XML files?

I'm running Windows 7 64-bit and no dummy plugs - both cards are being used for CUDA operations. The SLI bridge is intact as well.

- Scott

Yes Scott tried all that Physx enabled and sli disabled.
Looks like driver problems to me. I have 3 295's showiing and an crunching ok on the.
I will be installing XP on a spare drive over the weekend to see if it is a Vista 64 driver problem as some XP users have told me that they are working ok.

Dave

---

Latest on the BFG295 times 2 saga.
I have been messing with various settings.I have installed the latest Nvidia driver 190.62.
If I enable SLI in the Nvidia control panel with PhysX enabled and start Boinc there are 4 GPU's showing,however they do not crunch.
The completion time and the elapsed time both increase and the % done does not.
This basically proves that there is still a Nvidia driver problem when Running Vistax64.
At the moment I have SLI disabled and have 3 295's showing and an crunching ok.
I am going to email Nvidia about this as I cannot find any solution on there forums.I may have missed something but I don't think so.

Dave

---