Performance worse after significant GPU upgrade - 4080 super

[MrKeeno]

Hi all,

Recently bought a Asus GeForce RTX 4080 SUPER TUF OC 16GB GDDR6X as an upgrade to my Gigabyte GeForce RTX 3060Ti. The upgrade was long overdue and as I use a triple monitor setup along with 2 screens on my desk (using a switch) the 5 outputs on this card seemed perfect for my needs. Games ran ok but iRacing chugged at times on the triples.

However my PC now seems to be generally running worse. There is crackling coming from the monitor speakers, games seem to pause for a split second then work fine. I know the rest of the PC now also needs an upgrade (which will come in time) however if i'm honest I was still expecting a half decent jump in performance.

Full specs below:

ASUS ROG STRIX B550-F GAMING AMD B550 DDR4 ATX MOTHERBOARD - SOCKET AM4
AMD Ryzen 5 5600X Six Core 4.6GHz (Socket AM4) Processor - Retail
Team Group Vulcan TUF Gaming Alliance 32GB (4x8GB) DDR4 PC4-28800C19 3600MH
Asus GeForce RTX 4080 SUPER TUF OC 16GB GDDR6X
WD Black SN770 2TB SSD M.2 2280 NVME PCI-E Gen4 Solid State Drive
BeQuiet Dark Power Pro 900W
DeepCool CH780 Full Tower Gaming Case
Samsung Odyssey G6 LS32BG650EUXXU 32" Curved

I’ve done a fresh install of windows and all the drivers are up to date, chipset, sound drivers, everything I can think of.

Any help would be greatly appreciated. I’m a long time out of PC building so you may need to bear with me a bit.

Thanks in advance.

 

[MrKeeno]

Is your PSU old? 900watts should be plenty but maybe its not as stable as it used to be.

With regards upgrading your system a CPU upgrade to a 5800X3D/5700X3d would be great and would let your GPU stretch its legs more for minimal cost.

Also not sure if your on 16 or 32 GB of RAM (your post is conflicting) but a jump to 32GB would also be a good shout.

Thanks for the reply.

The PSU is definitely old, at a guess I'd say over 10 years old…. Would that be an issue?

Also, it is 32GB of ram, i’ll update the post now.

A friend also suggested a CPU upgrade could be worth a shot although the debate now will be what do I do 1st, the PSU or CPU? The struggle is real lol.

 

[MrKeeno]

Change The PSU first 850w is enough but personally would get a 1000w.

Make sure it's the atx 3.0 so it will have the cable for the GPU so you don't have to use the adapter cable.

Yeah, been advised a few times to start with that so have a Asus ROG Strix 1200W Gold on order.

 

[MrKeeno]

Could be your cpu struggling to keep up with GPU demand.

I’d start by removing all overlocks and any GPU software like msi afterburner…
Than do a fresh driver install

For me if the problem was psu you would get reboots

No overclocks and no additional software running, literally a fresh install before I started adding anything I dont need. I have a PSU on order as tbh I need one anyway but also I do think a CPU upgrade should be on the cards soon.

 

[MrKeeno]

?

You using two separate power cables or one with the daisy chain end? - Card came with a 3 into one so using 3 power cables from my PSU

You checked gpuz to see if its running pcie4.0x16 - Yep, running PCI-Express 4.0 (16.0 GT/s)

you disturb anything else when you did the swap - I don't think so however I had to upgrade the case due to the size of the GPU but we were careful moving everything from case to case (By we I mean a friend of mine who is far more capable than me. He's been building gaming PC's for a long time).

you change anything else about your setup at the same time like number of monitors - Nothing else has changed - problems started happening before I even plugged in anything from my sim rig.

its not entirely clear from your post - hope that helps. Thanks for taking the time to reply.

 

[MrKeeno]

Have you made sure your bios is fully up to date?

Yeah, the card wasn't even recognized with the bios version I was running so its been updated to the latest version.

 

[MrKeeno]

Have you made sure your bios is fully up to date?

Yeah, the card wasn't even recognized with the bios version I was running so its been updated to the latest version.

 

[MrKeeno]

Monitor your temps to rule out thermal throttling. Pay particular attention to your M2 drive as it is right under the gpu and a 4080 Super chucks out a lot more heat than a 3060ti and it could be causing the drive to thermal throttle. I had a problem with my Gen 4 drive sitting under the gpu and thermal throttling when using the motherboards M2 heatsink.

You say you have the latest drivers but have you updated to the latest motherboard bios? Even if it's not the cause it's worth keeping it up to date anyway.

Yeah, the card wasn't even recognized with the bios version I was running so its been updated to the latest version.

Whats the best way to minor temps these days? It's honestly nothing I've had to worry about before.

 

[MrKeeno]

One thing that I discovered, moving from the 30 series to the 40 series, was, did you use DDU and then reinstall the drivers?
I was getting problems until someone suggested doing that, and it worked.
DDU makes sure that the old driver is fully removed before you install new. It solves many issues!

Unless you use the speakers in the monitors, I would remove the NVIDIA audio driver. Again, I had to do that with my monitors.

Yep, we used DDU initially as we couldn't even get the system to boot (ended up the bios needed updating) so put the old card back in, ran DDU and tried again. When we eventually got the system to boot and stuck a game on to see how it was running the sound was the 1st thing I noticed tbh. We had nothing else plugged in so just mouse, keyboard and the monitor.

It was after using the system for a few hours I then decided to go with a fresh install of windows completely however I am still having the same issues. The PSU is on pre-order but hopefully once thats installed it helps, at the very least I can rule that out.

 

[MrKeeno]

Looking at the original post OP had done a clean install of Windows drivers should have been fine

I see your using multiple monitors, have you tried with just 1 monitor connected?

Yeah, only the one monitor connected on the initial startup and problems started straight away and have persisted unfortunately.

 

[MrKeeno]

Have you tried the card in the other PCIE slot at all?

Do you have the fps capped in games to just below your monitor refresh rate?

I have not tried that but will give it a go when I get home. The refresh rate for my monitor is 240Hz so cannot see the FPS getting close to that

 

[MrKeeno]

its a fresh install of windows

@MrKeeno have you monitored temps in games. i have to set an offset with my gpu as it was in the 80's in game

Whats the best way to monitor temps? This is where my lack of knowledge is going to be apparent... I had been keeping an eye on task manager as thats displaying the GPU temps but i'll have to go back and take notes.

 

[MrKeeno]

I'm at a loss. I am really not sure this is a hardware problem though. It sounds so much more like software. Especially the occasional glitch.

As soon as I got it all up and running I tried Cyberpunk, The Finals and BF2042. All had that split second delay which I never had with the old card. I downloaded Heaven benchmark and it did exactly the same thing. Very frustrating as I went way over what I would normally be willing to spend on a single item upgrade.

 

[MrKeeno]

I find a good way is Afterburner. Since you have multiple monitors you can throw a graph up on one monitor while you are playing games on a second. You can live monitor everything, including glitches in the FPS, and whether those correspond to various other activity like the PCIe bus. You can also monitor the CPU and see if the glitches are anything to do with the CPU.

Thanks, I'll give that a go this evening.

 

[MrKeeno]

All cables seated fully, GPU power and monitor?

How is the GPU mounted, normal or vertical using the riser kit?

GPU is mounted vertically, it wont fit in the case otherwise. All cables seem to be seated correctly but i'll pull everything out later and start again.

 

[MrKeeno]

Just a quick message to say I really appreciate all the help guys, hopefully i'll get this sorted one way or the other.

 

[MrKeeno]

PCIE 4.0 going by the manual.

Checked gpuz and its running PCI-Express 4.0 (16.0 GT/s)

 

[MrKeeno]

As mentioned above, the first thing I would try is removing the riser and see if you still have issues. The riser may have been ok with your previous card but the new 1 may not be playing ball with it very well.

How comes it will not fit in the case, fans in the way?

Maybe a pain but it you cannot test with it all in the case as you able to build it outside the case without the riser?

The riser is brand new and came with the case. The case seems to be designed to only mount cards vertically but i'll remove the side and mount the card normally to at least rule that out.

 

[MrKeeno]

The more you can strip back the better chance of isolating the issue. As above it needs to be tested without the riser. If it's still problematic after testing, is your dp/hdmi cable up to spec for the card?

I'll try swapping out the cable too although nearly sure its a brand new one that came with the monitor so im assuming it should be good, i'll still swap it out later.