I recently got my gaming PC back after several years without access to it, and I'm unsure where to begin with upgrades. The system has an ASUS Crosshair Hero VII WiFi motherboard, a Ryzen 7 3800X, 16GB of RAM, and an MSI RTX 3070 8GB. I believe the memory is DDR5, although I understand this platform normally uses DDR4. I mainly play at 1440p, and newer games are starting to run less smoothly. I also receive an error when trying to upgrade from Windows 10 Pro to Windows 11. Which upgrades would make the biggest difference, and is there anything I should check before replacing parts?
4 Answers
For a future graphics upgrade, look at cards such as an RX 9060 XT with 16GB, RX 9070, RX 9070 XT, or comparable RTX 5070-class options depending on pricing. The RTX 3070 can still handle 1440p, but newer cards with more VRAM should age better. There’s no need to replace the GPU immediately if the CPU upgrade solves the games that are currently struggling.
The Windows 11 error may be caused by TPM or Secure Boot being disabled. The motherboard’s firmware TPM setting often needs to be enabled in the BIOS, and Windows 11 also expects Secure Boot and UEFI mode. Check those settings carefully first, and make sure important files are backed up before changing firmware or boot settings.
The 3800X and RTX 3070 are still a fairly balanced 1440p pairing. The limiting part depends on the game: competitive and simulation games often benefit more from a faster CPU, while demanding cinematic games usually stress the GPU. Your 16GB of memory is still usable, but moving to 32GB would help with newer games, multitasking, and heavily modded titles. Also double-check the memory type, because the Crosshair Hero VII platform uses DDR4, not DDR5.
Your first upgrade should probably be the CPU. Since you’re on the AM4 platform, a Ryzen 7 5700X3D is usually the best value gaming upgrade, while a 5800X3D is worth considering only if the price difference is small. Make sure your BIOS supports the new processor before installing it. After that, upgrade the graphics card when your budget allows.
That makes sense. The CPU does seem to be the likely first step based on the games where I’m noticing slowdowns. I’ll check BIOS support before buying anything.

I hadn’t realized it could be a BIOS setting, so I’ll check TPM and Secure Boot. I’ll also verify whether the installed memory is actually DDR4.