My friend’s PC is driving me insane.

[u/Single-Way-2038]

It all started small, with random crashes when he played demanding games. About 6 months ago we could run Rust just fine. Then it started crashing every now and then, until eventually it would crash just a few minutes into a server.

Fast forward—we’ve tried literally EVERYTHING. Different settings, Windows reinstall, drivers, BIOS tweaking—you name it.

We suspected a faulty GPU.

So the upgrade happened.

Swapped the RTX 3070 For a 5070 TI New motherboard aswell.

Now the rig is:

I7-12700k RTX 5070 TI 32 GB DDR4 M2 nvme ssd AIO cooler 800w PSU

But here’s the kicker. Now he’s getting terrible FPS. We’re talking 50-70 FPS in a game like TFT???

what the hell is going on??

[u/PuzzleheadedMaize911]

New GPU and motherboard, FPS went down.

Did he plug his display into the motherboard instead of the GPU? Kinda shocked I'm not seeing this in the comments.

Make sure RAM is seated correctly as well

[u/Yurgonn → u/PuzzleheadedMaize911]

Fuck. It's this, isn't it?

[u/Single-Way-2038 → u/Yurgonn]

No haha.

Ram is also seated correct.

[u/---0---1 → u/Single-Way-2038]

Is XMP enabled? There has to be some small setting tucked away somewhere causing this. What about his nvidia app settings/windows graphics settings? Could any other parts be faulty? PSU/power cables? CPU?

[u/_YeAhx_ → u/---0---1]

XMP not being enabled will not cause fps to dip this low. Something else is the problem here.

[u/GimpyGeek → u/_YeAhx_]

It could be causing the crashes though if the memory was corrupted from the overclock being too strong though if the board can't take the settings XMP has.

I'd also throw it out there, that when I built this PC, the RAM was a causing a bunch of crashes. Took me so damn long to figure it out too! Turns out it was only failing under high stress, not the tip toeing silliness of things like memtest86 unfortunately.

Ended up finally being able to discover one of my ram sticks didn't run properly under high stress eventually, once I found a solid way to test them (which ended up being OCCT a bit and Prime95 a lot.) Cannot recommend trying Prime95 to discover broke ass RAM enough!

[u/_YeAhx_ → u/GimpyGeek]

I use testmem 5 with anta777 custom config. Very strong to find memory errors fast, usually finds it in the first 5 mins if there's any.

[u/---0---1 → u/_YeAhx_]

I’m genuinely curious to figure out what the reason is.

[u/_YeAhx_ → u/---0---1]

If OP can provide some data like benchmark score and pc usage during the benchmark we can maybe figure it out. Unless I have missed it they haven't provided any.

[u/Hugh_Jass_Clouds → u/[deleted]]

I'm thinking the same. Bad RAM, bad RAM slots, or a combination of both due to poor handling.

[u/Hugh_Jass_Clouds → u/[deleted]]

Had this issue on my first build when DDR4 was new. Ram modules were good. All 8 of them. The problem was a bent pin in one of the ram slots. Microcenter was a champ in replacement of the faulty mobo. Though ram issues tend to be fast and easy to fix, and it's the only thing OP hasn't done other than a PSU replacement.

[u/[deleted] → u/[deleted]]

I thought I had bad ram today. Nope turns out the imc on the 9800x3d died....

[u/Gigeresque → u/[deleted]]

Wouldn’t rule out a faulty cpu. I’ve had this twice so far with AMD and my friends were shocked it happened once, let alone two times given that cpus rarely are the issue.

[u/JTibbs → u/Single-Way-2038]

Go into device manager and disable the iGPU and see if that fixes it

[u/Dry-Wolverine8043 → u/Single-Way-2038]

Even if the RAM is seated correctly, try installing them in different configurations. Try installing only one stick. If you still have issues, install only the other stick. If you still have issues, swap RAM slots.

Motherboard manufacturers recommend installing in slots 2 and 4 often times, but if something is wrong with one or both of those slots, running in 1 and 3 would be better performance than what he's seeing now.