Question Multitasking any sort of graphically intensive tasks causes my machine to slow to a crawl on a newer hardware when it didn't on older.

[Retribution1337]

Hey all!

I recently swapped out my CPU/Mobo/RAM from an Intel i7 7820x 3.6GHz 8-core CPU on an Asus STRIX X299-E GAMING ATX LGA2066 Motherboard with Corsair Vengeance RGB 32 GB (4 x 8 GB) DDR4-2666 CL16 Memory to the specs listed at the bottom of this post. While I've seen performance increases in most cases, it seems that as soon as I get more than one graphically intensive program going, it slows to a crawl. Things I used to be able to run side by side on different monitors with my older CPU/Mobo/RAM and the current GPU seem to seriously struggle now and for the life of me I can't work out why.

My first thought was, obviously, the new hardware. I've updated the BIOS, ensured the chipset drivers are up to date, run various benchmarks and tests with 3DMarks Time Spy and CPU Profile, Unigine Heaven, Memtest86 (0 errors). I've checked my BIOS and ensured it's running the EXPO II settings for the memory timings. I've also tried software tweaks like disabling the high precision event timer and just today, a full windows reinstall.

I'm kind of at a loss because nothing seems to be yielding any obvious errors, yet any time of multitasking with graphically intensive tasks is immeasurably better on objectively weaker hardware. My best guess is memory timings but that's outside of my expertise and I'm not really sure what I'd be looking for. I would really appreciate any insight or advice anyone may have and I'm more than willing to provide any additional information anyone requests to help troubleshoot this. Thank you.

System Specs:
CPU: AMD Ryzen™ 7 7800X3D
GPU: ASUS NVIDIA GeForce RTX 3070 8GB Dual V2 OC
Motherboard: Asus ROG STRIX B650E-F
RAM: Corsair Vengeance Grey 64GB 5600MHz DDR5 2x 32gb sticks
OS Drive: Samsung 970 EVO Plus 2 TB PCIe NVMe M.2
OS: Windows 11

 

[COLGeek]

When you swapped components, did you also perform a full, clean install of Windows?

 

[Retribution1337]

I did at the time (which was a few months ago) and another just a few hours ago in an attempt to resolve the problem, no change.

 

[COLGeek]

What is the make/model of your power supply (PSU)?

 

[Retribution1337]

My apologies, I knew I missed something. It's an OCZ ZS Series 750 W. Amending the original post to include it as well.

 

[COLGeek]

I would replace that old beast immediately if this is the one you are using:

OCZ ZS Series 750 W Review

OCZ, having the value-oriented user in mind, recently released a new PSU series. According to OCZ the ZS series PSUs offer affordable power solutions to value-oriented gaming systems.

www.techpowerup.com

 

[Retribution1337]

Is that just general advice (and to be fair, good advice because it is indeed that one and I didn't realise how ancient it was until I plugged in it's name) or do you suspect it might be a cause. I ask because my partner has a much newer Corsair 650w (not sure the exact model) and if that's going to be strong enough, I can try slapping it in my machine to see what difference it makes.

 

[COLGeek]

I suspect your old PSU is simply not providing sufficient power under load. Replace with a quality, modern PSU.

What is your budget to replace?

The Corsair is under-powered for your GPU. See here:

ASUS Dual GeForce RTX™ 3070 V2 OC Edition 8GB GDDR6 | Graphics Card - Specifications

ASUS Dual GeForce RTX™ 3070 V2 OC Edition 8GB GDDR6 with LHR features two powerful Axial-tech fans for AAA gaming performance and ray tracing.

www.asus.com

 

[Retribution1337]

That's honestly the first theory someones presented me that makes sense. I've been wracking my brain over this one. To be fair, my budget isn't great at this exact moment but I'm sure I can find a way to squeeze some money out for something like a Corsair RM1000x. (I'll go stir crazy without a functional PC.) though I am open to reccomendations for future proofing. Thanks for the spot on that wattage requirement on the I'll have a nose around a couple of friends to see if they have a more modern PSU I can test first, more for piece of mind than anything. If I get one beefy enough

 

[COLGeek]

The RM1000x would be more than enough and should help with any future GPU upgrades.

If you test with another PSU, make sure to only use the power cables designed for that PSU.

While your current PSU doesn't use modular cables, the one you swap in may. Modular PSU cables are not universal (on the PSU end), even if the connectors look the same.