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Help request overclocking G.Skill Trident Z5 RGB Series (Intel XMP) 32GB (2 x 16GB) 288-Pin SDRAM DDR5 6400 CL32-39-39-102 1.40V on MSI MPG z790

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New Member
Jan 21, 2023
Hi guys. I'm new here and new to overclocking memory. I'm having trouble getting my timings right since my bios won't boot with my current changes and was wondering if someone can look at and recommend changes to the timings in my screenshots in order to get my PC to boot and play games stable. Not trying to do an extreme overclock that will give me a headache with crashing but just something stable and slightly better than the XMP profile. (XMP works fine and stable with no errors for me btw). I know I should be close and am just off slightly. my PC specs are listed below as well. thank you for your time

CPU: i9-13900K
CPU cooler: Arctic Liquid freezer II 360
Motherboard: MSI MPG Z790 CARBON WIFI LGA 1700 Intel Z790 SATA 6Gb/s DDR5 ATX
GPU: PNY GeForce Rtx 4090 24 gb
PSU: EVGA 210-GQ-1000-V1,1000 GQ, 80+ GOLD 1000W, Semi Modular
Memory: F5-6400J3239G16GA2-TZ5RK


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I would start with built-in profiles for Hynix IC. MSI has Mem Try It and more extreme profiles on the main OC page (near RAM frequency). There is a long list with various settings that also adjust sub-timings and everything else. If you don't need anything extreme, then just go for 6800-7000 CL34-40-40 1.45V. No matter what you do, in games, it's like +0-1% performance gain. Usually closer to that 0%. 6400 CL32 kits are already fast.