Question Issue with 4 year old gaming pc

[Newtopc2]

I have a gaming PC that I built myself in 2020. It is almost exactly 4 years old at this point. This system is used exclusively for gaming and I would say has had fairly light use for most of the time I have had it. I was prepping for upgrading some of the components in the new year.

Original Specs:
Mobo - Asus ROG Maximus XII Hero Z490
CPU - Intel Core i9-10850K
RAM - G.Skill Tridentz 32GB DDR4
GPU - FE 3090
SSDs - Samsung 860 and WD SN750
Power - Corsair HX Series 1200 80+ Platinum
AIO - NZXT Kraken X73 360mm

Two weeks ago I added two new things to it:
1. Asus xg27aqdmg as my main monitor and am using my old monitor as a second now.
2. A brand new NVME from WD SN850x. I installed this into one of the NVME slots next to my other SSD, however I didn't have a riser under it since this NVME is shorter than the slot it is in. It appears to be running fine though.

Issue: Since installing the new NVME and the OLED I have experienced multiple issues. Upon boot up, the system will start to boot, shut off, and then boot. Sometimes it boots to where it only turns on my old second monitor. Sometimes it boots to black screens and nothing happens. Sometimes it boots to the second monitor, then the 3090FE will flash its lights on and off, then it boots to my new OLED. One time the majority of the PC just didn't turn on. I can also rarely bring the computer out of sleep, the monitors just don't turn on. Sometimes it boots up perfectly fine.

The thing is, once I do get everything to turn on, it runs for hours perfectly fine.

When installing the new NVME I lightly dusted most external items, but didn't really touch anything power related. I did have to take the behemoth 3090 out to install the NVME though.

Troubleshooting I have done:

- Moved the GPU to the second PCIE slot down just to make sure it wasn't the slot it was in. I also reseated all the power plugs for the GPU to make sure they weren't loose.

- Tried each monitor individually, sometimes it still does weird things like I mentioned above though when booting up.

- Monitored Temps and performance while gaming CPU and GPU intensive games. They all seem in line, with the exception of random super high spikes on my CPU. Those existed before though.


Open to trying whatever I need to try. Any help greatly appreciated.

 

[geofelt]

There are some notes on the specs:

​

*1 Support PCIe bifurcation for RAID on CPU function.

*2 The PCIEX16_3 shares bandwidth wih M.2_2. The PCIEX16_3 will be disabled when M.2_2 runs x4 mode.

*3 When M.2_1 is operating in SATA mode, SATA6G_2 will be disabled.

*4 M.2_2 shares bandwidth with PCIEX16_3. When M.2_2 runs x4 mode, PCIEX16_3 will be disabled. When M.2_2 runs x2 mode, PCIEX16_3 runs x1 mode.

*5 M.2_3 shares bandwidth with SATA6G_56. When M.2_3 is populated SATA6G_56 will be disabled.

*6 Due to limitations in HDA bandwidth, 32-Bit/192kHz is not supported for 7.1 Surround Sound audio.

Is your motherboard bios current?
If not, are any fixes possibly relevant?

Run memtest86+
It boots from a usb stick and does not use windows.
You can download it here:

Memtest86+ | The Open-Source Memory Testing Tool

Memtest86+ is an advanced, free, open-source, stand-alone memory tester for 32- and 64-bit computers (UEFI & BIOS supported)

memtest.org

If you can run a full pass with NO errors, your ram should be ok.

You have a good psu with a 10 year warranty.
That said, possibly the psu is failing.
Can you test with a known good psu of sufficient power?

 

[Newtopc2]

There are some notes on the specs:

​

*1 Support PCIe bifurcation for RAID on CPU function.

*2 The PCIEX16_3 shares bandwidth wih M.2_2. The PCIEX16_3 will be disabled when M.2_2 runs x4 mode.

*3 When M.2_1 is operating in SATA mode, SATA6G_2 will be disabled.

*4 M.2_2 shares bandwidth with PCIEX16_3. When M.2_2 runs x4 mode, PCIEX16_3 will be disabled. When M.2_2 runs x2 mode, PCIEX16_3 runs x1 mode.

*5 M.2_3 shares bandwidth with SATA6G_56. When M.2_3 is populated SATA6G_56 will be disabled.

*6 Due to limitations in HDA bandwidth, 32-Bit/192kHz is not supported for 7.1 Surround Sound audio.

Is your motherboard bios current?
If not, are any fixes possibly relevant?

Run memtest86+
It boots from a usb stick and does not use windows.
You can download it here:

Memtest86+ | The Open-Source Memory Testing Tool

Memtest86+ is an advanced, free, open-source, stand-alone memory tester for 32- and 64-bit computers (UEFI & BIOS supported)

memtest.org

If you can run a full pass with NO errors, your ram should be ok.

You have a good psu with a 10 year warranty.
That said, possibly the psu is failing.
Can you test with a known good psu of sufficient power?

Thank you for the response. I need to track down a USB for the Memtest.

Unfortunately, this is all I have at this moment, so there isn't a different PSU I can try out.

Ill check the BIOS too, it annoyingly pops up on my side monitor which is horizontal unless I unplug that one.