Issue with RAM functioning during startup even though it appears compatible on the original manufacturer's site.
Issue with RAM functioning during startup even though it appears compatible on the original manufacturer's site.
Recently installed an Ultra 7 256k with Gigabyte Z890I and RAM that manufacturers claim are compatible, but it didn’t work. I’ve heard about RAM failing randomly on AMD systems, not Intel ones. Could it be that some RAM kits just don’t fit or work properly on certain motherboards? My Corsair Vengeance DDR5 6000 MHz is still working fine on an LGA1700 board, so the issue isn’t with the RAM itself. It’s confusing and frustrating.
The SKU for the RAM is listed here. These are the sole Corsair compatible part numbers for the 6000MT/s check; please confirm your RAM product P/N in the list. Regarding "doesn't work on boot," it means the system remains inactive with a black screen for a short period, possibly due to memory training that takes time to initialize. Intel or AMD differences are minimal, and issues can occur regardless of brand or platform.
CMK32GX5M2D6000C36 appears when copying from the website, causing a persistent DRAM light on the motherboard without booting. The indicator alternates between DRAM and CPU lights. After trying other RAM, it still doesn’t work. Memory training lasted several minutes, then waited up to 20 minutes multiple times. Confusion remains.
I don’t have any overclocks installed, and XMP isn’t enabled. All drivers are current, and BIOs are also up to date. I retried using the RAM that didn’t work after the BIO update, but it still didn’t help. I’m expecting a new Corsair version with a 6400 MHz RAM soon to test if it works. The other model that functions is the Dominator 6200 MHz—it’s not low-profile, uses more space, and blocks the side of the case.
It seems like an unusual scenario. If you're willing, I can process a return of the faulty RAM. Since you've already purchased replacements, it probably isn't worth fixing further. You might safely use the functional ones while the panel is off until the new units arrive and you verify their performance. Typically, such issues are resolved with a BIOS update, but if you already have the latest one, this shouldn't be the issue.
The item has been sent back to Amazon before the deadline, which is fine. I’m still a bit puzzled but thank you for the thorough replies. I just want to make sure it wasn’t an accident and that the newer ones are okay.
bad production runs often occur unexpectedly and affect everyone, even top quality checks can miss issues due to errors. From what I understand from your account, it seems like a faulty batch might be the issue, as both compatibility and BIOS versions appear stable. It’s likely just a common situation—most of the next batches should work reliably, with over 99% confidence.
Have you experimented with using a single stick first and testing each one in various RAM slots? Another option is to reinsert the CPU. Lift the CPU and inspect the pins on the board before putting it back. For testing only, avoid tightening the block or air cooler—turn it on and gently press down on the cooler with your hand. Remember to keep the CMOS battery charged during troubleshooting by either removing the battery or using the reset button if available.