SLi problems

Turning off SLi resulted in it automatically turning itself back on. Weird. Taking the second card out resulted in 6000 points less in 3DMark Vantage.

Switching the DVI cable to the lower card results in no black screen. Instead it goes black and then comes back. Also this causes eVGA Precision to reset settings on the second card. So instead of the 81% fan speed it went back to auto.

I guess maybe the next step is another SLi bridge and see what that does. I just don't get the increase in score. Maybe because it's offloading the PhysX to the other card via 3DMark Vantage and giving me a faster score. I've heard with PhysX you get a better score and with a card dedicated to that it would most certainly put a boost in the score.
 
Tried turning off PhysX and it just lowered my CPU score. :/ In 3DMark06 my GPU usage never goes above 50% in SLi and never goes above 60-65% in a one card set-up. Both PCI-e slots work fine as the card I have in now is in the bottom slot with same scores.

My friend is just about on his way over with another couple of bridges. Crossing my fingers.
 
So confused right now.

Reset my CMOS for kicks and giggles. Nothing changes. Now my mobo says I have my OC to 3.6ghz but CPU-Z says I'm at default speeds.

Try a new bridge and nothing changes. Now my mobo says I have Hyper-Threading on my Processor...

WTH?!?!

EDIT: Just to elaborate CPU-Z shows the correct voltage. I have C1E off so there is no power saving going on. Also in CPU-Z it says the mutliplier is 10x but at 2.66. 10x is correct, speed isn't.
 
Have you tried resetting everything in the BIOS to stock settings - i.e. CMOS clear. (if you can save your current OC profile to something)

Then try the SLi with everything at stock - I have had weird things [including seeing huge drops in FSB speeds, and also only two cores appearing] going on with my processor on my mobo (Asus Maximus Extreme + Q9300), and it tended to be because I did weird things in the BIOS and I didnt realise. Luckily, I would just reset the BIOS and load from my last working profile.
 
I did a total clearning of CMOS and what not. I did a test in Vantage with stock clocks and got 14541 but the GPUs were starving to death. Bumped up to 3.0ghz and got 18656. Much better but the GPUs were still hungry. I tried bumping up to 3.5ghz like I was at but bios stopped loading properly and the CPU would underclock so it could get enough power.

So I lowered the vcore some and went to 3.2ghz and everything booted perfectly and I got a 19279. :D

Conclusion? I need a bigger PSU and the CMOS needed a good long reset so everything would work properly.

BTW my GPU score in Vantage went up over 1k after resetting the CMOS @ 3.2ghz. I was only getting 15k or a little lower with a 3.5ghz OC when everything wasn't working correctly.

So now I'm fully functional and about to test out some games. But I'm confident that second CMOS reset I did made everything perfect. I also did some jumper "CLRTC" and pushed the power button 6 times like a person suggested (just don't know if I did the right jumper) for what it's worth.
 
So now I'm getting random "Hardware Mafunction System Halted" BSOD and I have to manually restart the system. This only happens with two cards installed in SLi. One card doesn't yield this problem. Both cards have been tested to make sure they are working. Any ideas? The only thing I can think of is PSU isn't powerful enough but I did set my OC back to 1.2568 vcore and 3ghz. Any ideas?

Tomorrow I'm bringing my external HDD to back up and do a full reinstall of windows. Hopefully this will solve any problems but who knows.
 
Sorry for so many posts guys, I'm just very thorough in my research and on problems and stuff. And I'm just posting so someone else that might have the problem can get a complete explanation for their problem.

So I went on NewEgg and did their PSU calculator. I went ahead and said my motherboard was a high-end one since I've heard it draws more power than it should. So it came to a total of 765. That is not including a DVD-rom, 6 fans at 12v, a fan controller and a sound card... So once a clients check comes in I will be getting a 950w Corsair PSU. This will be ample power for OC'ing and future proof me if I do a complete system rebuild. :)

So that is my conclusion since one card does completely fine with no BSODs or hang-ups. And since the BSOD doesn't have any information besides exactly what I said above this is the only explanation I can come up with.

Thanks for all the responses! Guess I'll set aside my older card and break in the new one until I get the PSU. This way I can OC the CPU to my hearts content until then. It seems the games I'm playing BFBC2 are CPU limited anyway as I never use over 50% of my GPUs in SLi in that game and my frames never changed. :/ So a CPU OC is going to be better.
 
yer man get a new psu the corsair are solid performers,you may well of been ok with a 850w but that extra 100w will suffice
 
Definitely. I'm actually really surprised I can boot at all to be honest. If that is the suggested PSU without all the bells and whistles then I don't see how I can OC both the CPU and slightly on the GPUs with fans at the highest settings. Really gives me confidence in Corsairs PSU line-up.

EDIT: Didn't see your request for link. Here it is:

Can be found when in the PSU (Power Supply) section.

http://educations.newegg.com/tool/p...ons.newegg.com/productfinders/powersupply.jpg
 
Ok so I'm thinking something is wrong with windows now. I took out a card so I could begin OC'ing my CPU and sure enough I BSOD'ed again. This never happened before I wiped clean the nForce chipset drivers. Even in Safe Mode it was crashing which is what is confusing me. I managed to get stuff backed-up and my reinstall adventure is going to start on my lunch break.

Going to start with XP and then if no problems going to shoot back up to Win7. I would do a Linux install but I'm scured. Lol. So I'll just do this and make sure there are no hardware problems. But like I said, it was only until I did the chipset drivers that things went wonky.
 
Got XP loaded up and everything is running fine except for a BSOD during Left 4 Dead 2. I'm going to order some new ram along with the new PSU.

I've read that these cards have a voltage rating of 1.9v. With that in mind all the voltages I have with the Voltage = Watt/Amp formula I have 12v on my PSU. If I add up all known voltages (VCore, NB, SB, RAM, GPUx2) that puts me at 10.218v. Then I have 6 case fans all running at full speed (12v), a DVD-RW, A fan controller, and a X-Fi sound card. I have no idea if I'm really using 12v on the fans as that would be crazy compared to my CPU and GPUs.

I guess what I'm getting at is it seems I'm over my voltage handling. Why then can I power up, load XP, load programs and then game for 5-10minutes before a BSOD? Am I doing calculations wrong? Is 12v really my max?
 
The northbridge southbridge, vcore etc. can run off a set of voltages, 3.3V, 5V and 12V as well as -12V. The powersupply will put 12V out, and components will use that 12V. I don't know why you are adding these voltages.

You haven't given a total power or a total current. The best way would be to look at the power draw for everything. Voltage means nothing without current. For example, a cold cathode will be up to 20000V depending on its size, but it uses very little power. On the other hand, a processor uses about 1.3V and uses 130W, giving a current of over a hundred amps.

What was the BSOD, did it say IRQ_not_equal or nvs.sys or what?
 
http://support.microsoft.com/kb/929338

That link is the BSOD. I dl'ed the update and installed it but haven't had time to test out a game since. Now that I remember I had two BSODs. First one was during gaming and gave me the 0x0000001A and the second time I saw the IRQ_NOT_EQUAL but it was during a shut-down or restart and it was gone so fast I couldn't see anything but the IRQ_N part so I was a little frustrated that the update didn't work.

I left the computer on all night last night (6+ hours) and nothing happened.
 
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