Windows experiences crashes upon enabling EXPO.
Windows experiences crashes upon enabling EXPO.
Good evening everyone. I’m reaching out for assistance regarding problems I’ve encountered since installing my AM5 platform. Specifically, my RAM performance has been inconsistent when overclocked to its rated speeds. I’ve tested three different kits: Silicon Power 6000/CL30 SU032GXLWU60AFDGSW 2x16 (two units), Crucial 6000/CL36 CP2K16G60C36U5B (one unit), and Mushkin Enhanced Redline Lumina 6000/CL30 MLB5C600AEEM16GX2 (two units). The Silicon Power kits would loop until hitting a Windows recovery screen or only reached stable speeds at 3600mhz. The Mushkin kits maintained stability at stock speeds, though Windows EXPO caused freezes with an error message on my main monitor before crashes. The Crucial kit performed well even with EXPO enabled, but only had one x2 unit. I’m curious if there’s a way to resolve the issue by filling all slots. I currently own the Crucial and Mushkin kits, while the rest of the system includes Windows 11 Pro 64-bit 22H2, Gigabyte B650E Aorus Elite X AX ICE (BIOS F5c, latest), AMD Ryzen 7800X3D (stock), MSI Radeon 6900XT Merc 319 Black, Corsair MP600 Pro LPX 2TB, Crucial MX500 2TB x4, and WD Blue 5400 8TB Seasonic Vertex GX-1000.
The positive side is that this situation is quite typical. The negative aspect stems from RAM and CPU constraints: handling four sticks makes it unlikely the memory will maintain its rated speed. Two sticks usually suffice and might even push beyond 6000Mhz under favorable conditions, but four sticks present real challenges due to CPU controller limitations. If you had four hands instead of two, you could manage more tasks simultaneously, though processing speed would drop significantly. The issue lies in the CPU controller's capabilities—AM5 supports a maximum RAM speed of 7800x3D, which means this particular stick configuration won’t perform well unless you use two sticks to achieve the desired performance. I only have a basic understanding of this topic, so if anyone knows how to improve four-stick compatibility slightly, please share that information.
There are options available, but keep in mind that running 4x16GB DDR5 is risky. The correct BIOS version and memory configurations are essential to avoid crashes. Newer BIOS updates aren't always superior for this setup, so experiment with older revisions to check if compatibility improves (roughly every other BIOS supports 2x16GB on AM5).
It's challenging. Intel shows more stability now, but connecting four DIMMs at such high speeds is difficult. AMD adds complexity due to frequent changes in AGESA memory training, altering how the system handles multiple DIMMs and breaking support. On AM4, similar issues arose with higher memory speeds—once BIOS updates occurred, performance dropped significantly, making it hard to exceed 1900MHz or even get a stable boot beyond 3600CL14.
Having four sticks on AM5 means you're facing slow performance issues. With the RAM I received—2x32GB of top-tier Hynix M die—plus the 6000CL30 chipset, it’s confirmed in my motherboard QVL. You might start with lower XMP speeds such as 5200CL30 or CL32 until stability is achieved.
Based on what I've seen, it seems rarer to find an M die in 2x32GB packages compared to getting an A die. The CL30-40-40 speed range from G.Skill is mostly A dies in that configuration.
I’ll make sure those kits don’t alter the SoC voltage beyond safe limits. Some adjustments made by EXPO when enabled might cause instability, so you could manually tweak the EXPO settings. For more specifics, being on an AM5 motherboard with UEFI would help.