How much power am I really using?

Right before Halloween, I splashed out on a Galax 980ti and SSD bundle. Installed great, ran a wee bit warm, but with a very minor Afterburner tweaks, i was only just pushing 70 at load, so I was fairly chuffed about that.

3 days ago, Fallout crashed, the Nvidia driver stopped, recovered, and I [like a moron] trotted over to Geforce Experience and updated. Rebooted, typed in my login, nvlddmkm.sys BSOD. reboot again, type my login, same thing. I get frustrated and nuke the Windows install, reinstall Seven, go to install the drivers, same thing.

I did have a 1200W psu in there since I built the pc back in '11, and changed it out for an 850i from Corsair, and everything seemed to be fine. But the rub is, one of the suggested reasons for such crashes is insufficient power. So I guess I'm asking if the 250w TDP of the 980Ti is the most power it uses, or is there more being drawn?
Thing's I've tried:
reseated the ram
cleaned the pci slot
clean the card connectors
rolled back drivers
expanded the nvlddmkm.sys from a previous install
memtest86 has been running for 4 hours, no errors, will leave on overnight

http://pcpartpicker.com/p/QCgFvK
here's my system minus the card, and monitor.
as always, cheers for any help or insights you guys have.

Its most likely the drivers - and nVidia KNOWS their drivers are shit but their attitude is

3 Likes

850 is plenty for your system.

Basic diagnosis would be to simplfy the system as much as possible and then swap out parts to try to isolate if it's a hardware issue. Personally not had any major issues with nVidia drivers but obviously there's many combos of hardware though I do happen to have an 850i PSU + 980 Ti in my system but that (PSU) was for my previous 2 x 970 SLI.

Anyway maybe start with the Xonar as I know I have had problems with DX drivers before oh and update the mobo BIOS of course. Even the SSDs can often have an updated BIOS available.

Well your first mistake was thinking that meant something was wrong with your system... Now it seems like the drivers don't like you anymore. do a complete nuke of the drivers with this
http://www.guru3d.com/files-details/display-driver-uninstaller-download.html
and install whatever driver you had on there when it was working in the first place.

unless the power supply is faulty it isn't power related. an 850w is well and above enough power

thanks guys.

I did use DDU, and the drivers i had working on there at the time. NO DRIVERS will work. even ones from august which i know worked now don't. what's extremely annoying is EVERYTHING WAS WORKING! now, suddenly, it's not.

I'm going to stick my old 780-ti in and see if that works, but if not, i'm not entirely sure what to do.

totally uninstall MSI Afterburner - get rid of any and all overclocks even if its just a custom fan profile for the gpu.

The 1200w wasn't providing enough amperage. 850w is fine... you could probably do SLI

850w should be enough for two 980s in SLI even.
I ran two overclocked 580s at 940mhz with a overclocked CPU and it went just why of 730 watts power draw under full load on everything.
Your 980ti is probably rest in pepperoni if it bsods on a fresh windows install.
Tried using another pcie slot? or even another PC?

it was the 980ti. my 780ti went in, no issues, installed the drivers, booted up fine. now, since it was all open with its guts hanging out, i haven't tested it on games yet, but the fact that it lets me into windows when the other card wouldn't, tells me something's up with the 980.

Probably not as much as you think.

your parts are efficient and you have enough wattage.

If you're really curious you could pick up a Kill-A-Watt, plugging one of these will show you your power draw from the wall

780ti is just as power hungry as a 980ti, if not more.
My money is on the 980ti being bad, tested it another system?

thanks, i didn't know that was a thing.

nono, same system. i just swapped the cards out and loaded relevant drivers. allthough whether the drivers for the 780 are more stable than the 980 versions is unknown.

So you haven't tested the 980ti in another system I take it.

lets see if i understand the whole story correctly.
You systems crashes wenn you run games with a 980Ti?
But with the 780Ti everything is fine?
Then its most likely a faulty card i would suppose.

mostly correct.
my system BSOD's whenever I installed drivers for the 980ti, but when I swapped out the 980ti for a 780ti, the drivers installed fine.

Yeah then i suppose its an issue with the card realy.
The drivers are basicly the same.

sadly I only have the one desktop, so I'm out of luck there.