XMP activation isn't supported, while QVL does allow it.
XMP activation isn't supported, while QVL does allow it.
I updated my motherboard to the latest BIOS and attempted to activate XMP. The RAM I’m using is a G.Skill Trident Z5 RGB DDR5-7200 SL C34 DC - 32GB. When I turned XMP on, saved, and exited, I couldn’t access the BIOS anymore. Now I have no display and can’t perform any tasks. After disconnecting all cables and clearing CMOS from the motherboard, I was able to enter safe mode, which displayed my specs and restarted the BIOS—though it was disabled afterward. I’m using a powerful board that supports QVL up to 8000 MHz, and the RAM is 7200 MHz with XMP enabled. Any suggestions on what might be happening? My specs are: 13900K Z790 Apex Maximus 4090, ASUS Strix Corsair HX1500i, 990 Pro SSD (2TB), X-Grand SKT Trident Z5 RGB DDR5 7200 MHz, and Lian Li cables for GPU, motherboard, and fans.
It seems you're questioning whether your setup was a mistake. The chance of failure goes up with higher specs, and once you hit 6400, the risk becomes significant. Beyond that, the extra benefit of more RAM usually doesn't justify the cost.
Being costly doesn't guarantee anything. They can increase prices as they wish, ultimately it comes down to one of three factors: board, RAM, or CPU IMC. Unless you add more RAM and try to identify the problem more precisely, we can only guess it might be one of those three areas. Make sure your BIOS is current to double-check.
Reach out directly to ASUS support. There were several boards, especially at first, that were nearly unusable (some reports mention around three out of ten boards failed within a month, including one from Skullbringer, a writer for igorslab, whose board wouldn’t work with the Z790 Hero frequencies). The QC process for the Apex series has been quite poor recently. Check if they can provide a newer BIOS version or arrange an RMA.
You're asking about the availability of G.Skill DDR5-7200 memory for the ASUS Maximus Z790 Apex motherboard. The official QVL listing doesn't mention it, and G.Skill hasn't confirmed testing on their end. It's possible they used specific methods or BIOS settings to enable it, but you won't know the exact process. You might need to explore UEFI BIOS options and adjust timings manually, which carries risks. Even if the board supports DDR5-8000, other factors like chip quality and CPU IMC can affect performance. Just because it's priced high doesn't guarantee success.
Intel verifies the 13900KS supports up to 5600 MT/s; anything beyond is an overclock attempt. It seems your CPU's memory controller can't handle 7200 MT/s. Your previous 6700K also struggled at 3200 MT/s, needing 3000 for boot. These are the limits. I'd enable XMP and aim for 6000, testing stability first, then adjust gradually until it works reliably. Then lower it back.
I’d adjust the speed to 6000, restart it, then increase the frequency by 200MHz until it stops booting. After that, I’d lower the settings by one level. Given the build and expense involved, I’d probably go for a full watercooling solution.
I went down to 5800 mhz ramspeed and this seem to work without long boot times. when in windows able to do things normaly i still get some error codes on my asus apex motherboard. 47, 49, 48, 47, 50 , 60. and theres also a white light over the error code.