Amillercuts

Just like it says. I am trying to see if I spike and peak over my 1200W PSU or if there is some other issue, the problem is monitoring is tricky as each device has it's own power usage. I've been looking for a way to monitor the the total but to no luck. Anyone know of such a software?

First install the 3090 ti driver, restart, then go to device manager>display adaptors>your non 3090ti card. Right click > Properties> Driver > Update driver Browse my computer > Select "Let me pick from a list of available drivers on my computer Uncheck "show compatible hardware" Select NVIDA , scroll until you find 3090 ti and install. Restart and you should be good to go until NVIDIA launches a proper multi card driver. Have ran into 1 random error that I cannot figure out. If rendering a very intense scene I get a HARD crash, like PC just shuts off. I cannot be sure if this is a strange driver issue or power draw. I SHOULD have enough power but I know these can spike pretty hard. Might try a second PSU but 1200 should be more than enough according to most reports.

OOOOKay After a bunch of testing and searching and more testing I got it up and running. It is in fact a driver issue. I was able to get it to work but putting both cards in the system, installing the latest 3090ti driver. Going into device manager and installing the same driver manually on the 3080. The only "down side" to this is the OS sees the 3080 as a 3090 ti, sorta feels like I downloaded a gpu haha. It still sees it as only having 10 gigs of vram though so I don't think it is an issue. I also ran a render test which worked fine and also viewed the card correctly: It is faster than 2x3080s with over 2x the vram for sims and other cache heavy projects. So I am happy. Hopefully this helps someone else until Nvidia releases a proper multi card driver.

I think this is it, after a bunch of testing I can boot reliably and fully power any two cards, it just does not "see" the 3080 at this point. 2x 3080s work as well as 3080 + 2070. Sent in a report and hopefully their will be a new driver soon

Yes it works fine solo. Also by swapping slots and manually installing the 3090ti driver I can now boot to windows but it refuses to see the 3080 now. My guess at this point is that it is a driver issue on nvidia's side as the 3090ti is a new card.

Before everyone yells at me, I am a 3D designer understand that it doesn't make sense for gaming. TLDR; Shouldn't a 1200 W PSU be enough to power a RTX 3090ti + RTX 2070? The long way around: I'm rending in Redshift which uses as many cuda cores as you can throw at it. I have 2x 3080s running on a 1200 W PSU no problem. I saw the 3090ti drop and had the option to buy one, decided to pull the trigger despite it not being the best value because I also do fire and liquid sims which are limited by a single cards vRam and by selling my 3080s it would more or less make it offset the cost. After doing some tests my render times are worse (due to stated sheer amounts of cuda cores in the combined 3080s) so I figured I would add one 3080 back in with the 3090ti instead of selling both. It won't post. I also tried a RTX2070 for good measure still no post. It will power up but with certain fans and LEDs not turning on or flickering, I don't get any error from the Mobo lights unfortunately but the 3090ti's fans will will go full speed and the monitors will go back and forth over detecting a signal or not. I have the PC plugged in one outlet and 2 monitors and an external HDD bay plugged into a power strip in the outlet below. My thought is it it's a power issue due to the odd led/fan stuff, but a 2070 + 3090ti shouldn't overwhelm a 1200 W PSU right? I also wonder if it is a driver issue, because every time I added a new card, then went back to the 3090ti solo the driver would have reset and needed to be re installed. Not sure if anyone experienced this with a multi card set up. (This should work fine BTW I did it with a 3080 and above mentioned 2070. You can read about it working well here too: https://www.pugetsystems.com/labs/articles/Can-You-Mix-Different-GPUs-in-Octane-and-Redshift-1189/) Full Specs 1200 W Corsair PSU Zotac RTX 3090 ti 120 GB DD4 RAM i7-9700k 1tb M.2 SSD 2 X 500gb SATA SSDs Any insight would be appreciated.

Interesting didn't know that might be an issue! Thanks.

Noise isn't an issue, but I don't exactly want a card just hanging like an eyeball knocked out of socket. Have a buddy that thinks I should just use a test bench as a "case". Might be a middle ground.

TLDR; If I have two hot GPUs stacked so one is exhausting onto the other and the later onto the PSU an inch below is this going to hurt performance significantly enough to warrant a bigger MOBO/Case? So I have a RTX3080 and a RTX2070. I am using these for Redshift, a GPU accelerated render engine that can take whatever I can throw at it. Although I do game on occasion I know the 2070 isn't being used unless I point Nvidia PhysX or something at it. I see over a 1/3rd decrease in render times using both vs one card which is awesome, but I am trying to weigh the pros and cons. My issue is these are hot cards and very close together on my small board under an inch of air between my 3080 and 2070. They are both blower style and I am worried that when setting a render to go often for over 8 hours at a time it will hurt the performance and lifetime of one or both the cards. Also wondering if a larger case/motherboard would help. I'll be monitoring the cards in MSI afterburner but would love any tips/knowledge you all have. Thanks. Sorry if this is common knowledge and I am being a noob. But didn't find much on here with a quick search.

Quick question: I have a used RTX 2070 and am hoping to upgrade and sell it. But I cannot seem to find an accurate price. I've seen it on Amazon and other places higher priced than the 2070 Super!? Not finding a lot for sale on ebay and the such either. Is it a collector's item or something? What would be a fair price for it?

Bumping to see if the OP found a solution.

Just tried this, no luck.

My RTX 2070 founder edition is spiking to 100% usage randomly. Seems like only happens if I am doing SOMETHING as leaving it completely alone does not seem to cause spike so no virus... Also virus scan says no and I am immunized and up to date. It will also crash in most games but regularly in BF4 as I end a map and return to the menu. I can recreate the spikes by opening or closing chrome. Also Here is what it looks like opening BF5 setting everything to low. Then setting everything to high. THEN crashing. You can tell pretty easily by looking at the curves in 1:33:51 Crash happens at 01:56:23 After burner log: https://drive.google.com/open?id=1kdgh1rOhktu4Uc19EQIm2h1Dr_HsH9Le Ram: CORSAIR Vengeance LPX 64GB (4 x 16GB) 288-Pin DDR4 SDRAM DDR4 2666 PSU Corsair 750m CPU i7-9700k Nothing is overclocked It worked fine until recently. I updated to the creative driver as I mostly use my PC for After Effects and Cinema 4D. However I started getting these spike so I swapped to the latest game ready driver and am still getting these issues. Also started getting BSOD with memory mismanagement as the issue at the exact same time. I tested all my ram and there are no issues. No XMP running at rams speed 2666 and correct voltage. This is super confusing and I would appreciate any help. I am not sure what all is the issue, ram seems fine, heat seems fine, all parts are less than 2 months old and everything has worked fine until now when I made no major changes. EDIT Did a clean video driver install and still getting spikes. Can force them by opening or closing almost any program.

That makes a lot of sense, thanks. This is my first time trying to do a build of this sort so I appreciate all the patience with my lack of understanding. Normally I do gaming builds for friends where it is pretty easy to choose what you need and what works together. Heck half the time you can just find a guide at your price point and follow that.

Okay, what do you all think of this: https://secure.newegg.com/Wishlist/PublicWishlistDetail?ID=24013874 Might look for cheaper ram or a more reliable motherboard. But so far it seems like a great boost for not crazy amounts of money. Bonus points: Will my current cooler still fit?