Second Card not showing up in Device Manager.
deleted user
Posts: 1,204
I know this isnt Daz3D Related, but we all deal with Cards quite a lot so I was thinking it would be a good place to ask.
I bought a GTX 1080Ti 11GB DDR5 about 8 Months ago. I just ordered another one a couple days ago. Same exaxt model, from the same seller. I noticed after installing, that the card didnt show up anywhere. Yes I had the bridge adpater connected. Pluged in to my PSU. Both the 8 Pin and the 6-2 Pin were plugged in. Everything was as it should be. (To my knowledge) I updated my driver. And nothing changed. I installed factory setting driver. Nothing changed. So I though. Maybe this is a bad card. So I took out my older one. The one that works. And installed the new card, in the same slot. Now that one shoes up. So then I thought. Uh oh. Maybe the lower slot is bad? So I took it out of my top slot. And installed it directly into my lower slot. I fired up my PC, and it works just fine. So, its not my cords.. Its not my slots. Its not my drivers. Its not the cards. I dont know what else could be causing the issue.
System Specs.
Win10 64bit
i7-5820k 3.3Ghz 6-Core Proccessor
Asus X99-A Motherboard
64GB DDR4 Ram 2133Hz
2TB Samsung 960 Pro SSD
850Watt PSU
Plus the GTX 1080Ti cards.
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Comments
What do you mean the "bridge adapter"? If it's an SLI bridge you should disconnect it. CUDA/Iray doesn't recognize them I believe. Or maybe it hates them. Not sure. But you really should disconnect it.
Hmm, strange. Your BIOS should already be configured for at least 2 GPUs. I wonder if this is a Win10 issue?
Did you Shut Down Windows or just Hibernate/Sleep and then power off the computer? If you put it in Hibernate/Sleep, it might not be registering BIOS updates like additonal hardware. You'll have to do a full Restart in that case.
Restarting is a slow process - open Task Manager/Performance Monitor and wait until your C:\ Drive activity levels off.
If it still doesn't show up, open Device Manager and click Scan for Hardware Changes.
If it STILL doesn't show up, reboot and enter your motherboard BIOS and see if any PCI slots are disabled. They shouldn't be, but stranger things have happened.
I did try rendering in SLI vs not in SLI (enabled/disabled via NVCPL, but left the cable attached) a couple of years ago. SLI slows down render speed, but I didn't have a problem with the card not being recognized by the system.
What do you mean the "bridge adapter"?
-The SLI Cable
Did you Shut Down Windows or just Hibernate/Sleep and then power off the computer?
- I shut it down turned off the PSU Switch, and unplugged it.
open Device Manager and click Scan for Hardware Changes
- Tried that. Didnt work
reboot and enter your motherboard BIOS and see if any PCI slots are disabled.
- I honestly dont know what I'm doing in BIOS... =(
Not sure if this is what's causing the issue as it didn't affect me and you do have a different version of the motherboard, but I have an Asus X-99S motherboard and it has a switch labelled SLI/CFX Switch. To quote the manual:
"This switch allows you to determine the slots for 2-way or 3-way graphics card installation. When enabled, the LEDs near the slots light up, telling you to install the graphics cards to the specific slots."
I don't use SLI, so I didn't adjust the switch and both graphics cards have worked fine for me - the second card I have had in two different slots to allow for more space between them and it worked in both. If possible, try to download a pdf version of your motherboard manual because it is easier to search, and look for SLI.
It's also worth noting that on my X-99S motherboard, the lower slots share bandwidth with SATA devices and this can be changed in the BIOS.
Sorry that I can't be more help - I'm not a BIOS expert either. These are just things I found out whilst adding a second card and a M.2 SSD.
Whats odd is that I own a GTX 1070 as well. Last year when I installed my 1080Ti. I also placed my 1070 in my machine just to test. It showed up just fine. But I know your not supposed to have two different cards so I took it out. But now I have the proper set up and its not working. Even though I followed the same steps as with the 1070.
That is really strange. Just for reference, for iray rendering, the cards don't have to be the same - I believe that for SLI gaming they do.
I've just put your system details into a PSU calculator and it seems to be below 850W, so insufficient power is unlikely unless you are running something else not mentioned in your specs such as a lot of HDD's or water cooling systems etc.
Just a thought - when you move the cards from one slot to another, are you keeping the same power cords and in the same slots on the power supply?
EDIT: Might be worth putting your full system specs into a calculator. I've just added a few drives and fans and it puts the estimated load over 850W. You could try:
http://www.coolermaster.com/power-supply-calculator/
Well this is what I have at the moment. Not sure how much this helps.
I had to take a few guesses, but this seems to be close to your spec and it's recommending 886W. If it is correct (bear in mind thissite is in the business of selling PSUs), then your PSU may not be sending enough power to the second card.
I wouldn't recommend going out and buying a new PSU just on the basis of this site though. If no one else here comes up with a better idea, I'd say try a local computer shop and get their advice first.
I got a different result. But I dont have a traditional Hard Drive anymore. I only use SSD now. And it's (8) 8GB Ram Sticks.
I figure if it was going to be a power problem then my 1070's card shoulnt have shown up, right?
What I found interesting is that the LED lights on my 2nd card lit up... So, it had power. Everything was connected.
I'm thinking its gotta be a BIOS setting, or something. I just dont know what I'm doing in BIOS.
Huh... Strangest thing ever... I installed it again. Now it's working. O.O
But I didnt bridge. Do I have to bridge in iRay, or not? I wont render anything until I know its safe to do so. And besides checking the two cards in Advanced Settings. Is there anything else within Daz Studio I may want to make sure is on or off
Yeah, the 850watt power supply is fine. I have a 1080ti with a 1070 and it barely hits 400watts (measured with an actual watt meter, rather than relying on a calculator) while full render. With two 1080ti's I'm guessing it might get to around 500-600watts at most. An 850w power supply is more than enough, unless you're also running a room airconditioner with it.
If you're concerned, like I've recommended 100 times before, spend $30 on a Belkin (or other) power monitor and it will tell you the realtime power usage of your entire system. I would never rely on a calculator, especially from a company whose business is selling power supplies.
No bridge needed. I have a 1080ti running with a 1070 and it runs fine with no SLI bridge. Like I said originally, disconnect any bridges.
Glad you got it fixed. Computers are complicated. Sometimes you just need to reboot a few times or wait for the OS to do some stuff before things work.
Correct. I have a 1080ti with a 1070 and they run fine together for iray.
Glad you got it fixed.
haha! But I didnt! lol! Thats the thing. I did nothing! xD
But thanks for the Help. I installed the latest driver from GeForce Experience. Everything is gold as far as I can tell. Now for the real test... =O
Thanks for the help everyone. I'll bump this if I run into anymore snags.
Holy snap. I rendered this image in about 4 seconds. =O
Also, keep in mind that those power supply calculators assume that everything is running at full, simultaneously. So all your CPU's are running all their cores at the same time (and at 90% TDP) as your GPU's are rendering flat out and your hard drives are accessing, and so on. And on top of that, they recommend a power supply that is far more than what was calculated. For a 600watt peak load, all running simultaneously, they recommend an 850watt power supply? Seriously?
Yeah, you could believe the hype that it's more efficient and you're saving electricity costs with a more efficient power supply, but if you crunch the numbers it's peanuts. Less than peanuts. Not even worth considering.
Well I am lucky enough to have a power company with a "set" price that I pay every month. 150.00. So I'm not too worried about my power bill. The PSU should always be at least 50 watts more then what you need to prevent bottlenecking and if you've ever had a RC Car before as a kid. You'd know that a low battery wears down your toy at a much faster pace then one with a Fully Charged battery. But these companys want you to have 200 or more watts then what you need and are always going to refer you to premo items. It's important to have enough juice, but you gotta stay practical.. My next upgrade will be 1k Watts... Beyond that its total overkill cause then your starting to talk about industrial level wattage.... For a home PC... lol!
Agreed, no SLI bridge for iray - I have a 1080ti and 980ti running together without one.
Glad to hear that you've got it running - must have been the drivers. Perhaps they didn't completely uninstall prior to the last driver install that you did.
Not sure what you mean by "bottlenecking"...
A low battery implies low DC voltage, which isn't what we're talking about here. If a power supply is rated for 600 watts it will deliver 600 watts at rated voltage (like 5V or 12V to the motherboard). If you go over that you might get into problems, but generally power supplies are self protecting, just like GPU's and CPU's. It might shut down if it gets overloaded, but otherwise it should work fine.
Sure, get a larger power supply than what you need if that's what makes you feel better. But that generally means getting the next larger size that's available, since they are offered at fixed sizes. Just realize that you may not NEED a larger one.
I said I would bump if I ran into any more snags.. Now I'm getting this. - No it's not my drivers. I've uninstalled and installed both the latest driver and the factory default drivers like 6 times...
Nvidia Control Pannel is Gone. Wont show up. Wont open.
So is it working now or not?
Also, when you say you uninstalled and installed drivers like 6 times it makes me go "hmmm...."...Did you use DDU to remove all traces of the drivers before reinstalling?
So is it working now or not?
-No
.Did you use DDU to remove all traces of the drivers before reinstalling?
-The fact that I have to ask, What is that? Is probably a, No. xD
Display Driver Uninstaller.
Not sure if this is the best video on the subject, but it is a good introduction:
https://www.youtube.com/watch?v=ZxiLwLCxmkk
Yeah, probably not the best way to respond to someone just trying to help you. Good luck, I hope you get it resolved.
lol. I was poking fun of myself. Not you. K, so I did this DDU Uninstall in safe mode. Now what?
Both cards are showing now. But I'm kind of afraid to update the driver. That seems to be the route of my issues. I bought Driver Easy. Cause I'm lazy like that.. What do you think I should do?
Glad it got sorted, no matter how it happend - end results are what matters, not fame and glory LOL
I think there is a BIOS setting you have to adjust when adding GPUs - something about a memory allocation for something (can never recall unless I'm looking at it). But, since yours works, either it didn't need it or it resolved it on its own.
As for the PSU, I ran into a problem with my GPU cluster where a 1375w PSU couldn't power my Titan Z and a 980, and wound up killing two identical PSUs. Turned out I wasn't exceeding the wattage, but the 12v rail capability. The Titan Z needed one of PSU all to itself, as a second card cut into the 12v supply for the Titan Z.
Now I've got 4 550w PSUs - one for each card, and a 5th one for the cluster board itself.
Turns out I may have baked the cluster's backplane anyway, as it's not lighting up like it's supposed to :(
Ah well, hopefully I can get it fixed for less than a replacement. If not, I'll just replace it, because it was just tons faster than just using 2 GPUs.
I'll probably go with 4 1070 TIs though - the 1080tis are just too hard to get and too expensive right now. 4 1070 TIs would add 4800+ cores, and I've still got the Titan X (Pascal) and 1080ti.
However, one thing I did run into when I first set up the cluster is not enough motherboard resources. I had to crawl through Device Manager and disable the rear USB ports, as well as Uninstall the HD Audio resources for all but the primary display driver. I was concerned that this was the issue with your setup, but it seemed odd that an X99 would need that with only 2 cards, because I was actually looking at that board as an upgrade to my Z97-Pro. Glad it wasn't a MOBO issue.
Speaking of the X99, the spec sheet says it has Thunderbolt headers on the board, but no ports. ASUS does have an add-in card that enables TB3 on X99 boards. Akitio makes an external GPU enclosure for TB3, so you might be able to add a third GPU with ease. I use one of their Thunderbotl 2 units, and though they claim it's not rated for GPUs, rendering works just fine. However, it doesn't work if there's 2 cards in the machine due to the lack of system resources (which I can't resolve, even though I'm only running 3 cards - I was running 6 with the cluster (Titan Z showed up as 2 separate cards, now it only shows as 1, and not enough resources), but it is detected). Then again, I'm using a different board, with a butchered Resource stack. Yours may do better at it.