Hello! There are a few things you can try in order to get your RAM running at its intended speed of 3600MHz:
1. Check for BIOS updates - Make sure your motherboard is running the latest BIOS version. Sometimes, motherboard manufacturers release BIOS updates that improve RAM compatibility and performance.
2. Enable XMP/DOCP - The XMP (Intel) or DOCP (AMD) profile in your BIOS is designed to automatically overclock your RAM to its rated speed. Try enabling this profile in your BIOS and see if it helps.
3. Manually adjust frequency and timings - If XMP/DOCP doesn't work, you can try manually adjusting the RAM frequency and timings in your BIOS. Make sure you're following the specifications for your RAM, which should be listed on the packaging or on the manufacturer's website.
4. Check for compatibility issues - Check your motherboard's QVL (Qualified Vendor List) to see if your RAM is officially supported. If it's not, there may be compatibility issues that prevent it from running at its rated speed.
5. Test stability - Once you've made changes to your RAM settings, be sure to run stability tests to ensure everything is working properly. Programs like Prime95 and Memtest86 can help you stress test your system and detect any errors.
I hope these tips help! Let me know if you have any other questions.