I built a new PC with a Ryzen 7 9800X3D, 64 GB of RAM, and a Radeon RX 9070 XT. It has repeatedly crashed with MEMORY_MANAGEMENT blue screens. Windows Memory Diagnostic reported no problems, but a crash dump showed bug check 0x1A with parameter 0x41792, indicating that a corrupt page table entry (PTE) was detected.
The first incident happened while playing Cyberpunk 2077, when the computer shut down and my surge protector briefly reported a short-circuit condition. The next day, Satisfactory crashed to a blue screen when I selected Continue from the main menu. The electrical warning has happened only once; the other failures have been MEMORY_MANAGEMENT crashes. I am inexperienced with interpreting dump files, so I would appreciate guidance on what to test next and whether this points to faulty RAM, a motherboard or power issue, unstable settings, or something else.
4 Answers
A clean Windows Memory Diagnostic result does not completely rule out unstable memory. Run a bootable memory test such as Memtest86+ for several full passes, ideally overnight. Test each DIMM individually and try each motherboard slot with a known-good module. If errors appear, disable EXPO or any memory overclocking and load the motherboard's default settings. Also confirm that the modules are installed in the recommended slots and that the BIOS is current.
The one short-circuit warning from the surge protector is worth taking seriously. Stop using that outlet or protector until it has been checked, and verify that the PSU is correctly connected and is a reputable unit with enough capacity. A quality UPS with voltage regulation can help if the household power is unstable, but it should not be treated as a substitute for diagnosing a defective PSU, cable, outlet, or component.
Because the system is new and the crashes happen during games, start with the basics: return the BIOS to stock settings, reseat the RAM and graphics card, check every power connector, and reinstall the chipset and graphics drivers. A corrupt PTE can be caused by bad or unstable memory, but it can also result from a motherboard, CPU, GPU, driver, or power problem, so the dump code alone does not identify the exact part.
For memory troubleshooting, remove the storage drives only if you are comfortable doing so and test from the bootable USB instead of inside Windows. After each test, power the machine down fully and unplug it before moving a DIMM. If every stick passes individually but the complete kit fails together, that can indicate an EXPO/configuration or memory-controller compatibility issue rather than a single bad module.
They use similar concepts, so a second tool is not guaranteed to produce a different result. The important part is running a long test and checking each module and slot separately, preferably with EXPO disabled. If that is clean, move on to stock BIOS settings, drivers, cabling, and component isolation.

I already ran PassMark MemTest86 and it reported no errors. Would Memtest86+ be likely to find something different, or should I focus on the BIOS, power, and component checks next?