RTX 4090. Ryzen 7800x3d ddr 5 MT/S only 4800
Posted by Cheap_Theory_7162@reddit | buildapc | View on Reddit | 3 comments
Does anyone know how to hire my speed my RAM goes up to 6400 I have trident Z5 neo RGB DDR5 and I already tried to go into the bios and activate the profile but every time I do, my screen goes black. I read a lot of things online, but I would need a more detailed step-by-step process if anybody could help only had my PC for about a year and Iām scared to go in the bios
lichtspieler@reddit
Check mainboard manual for DIMM population rules and try a manual 6000 MT/s speed and let the mainboard auto adjust timings. You MIGHT want to adjust some of those timings for real world recommendations or you copy similarly binned EXPO profiles and try to use those. The basic auto mainboard settings are when it comes to gaming performance impact, pretty close to basic JEDEC 4800 (NO RAM OC).
A quick hint, above 6200 - 6400 MT/s RAM speeds you only trigger GEAR-2 mode or are stuck in GEAR-2 mode for stability reasons even with manual overlocking and its simply less desirable with RYZEN + RAM overclocking for gaming performance. (= this is not good)
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The main point with the 5600 - 6000 MT/s RAM recommendations for RYZEN is, that you dont have to manually do all the work if you are not into manual RAM overclocking and you end up in this RAM speed rating for various reasons with RYZEN CPUs.
6200 - 6400 MT/s RAM will usually trigger GEAR-2 mode (MCLK half cycle) and thats not great for a gaming system and the latency penalty alone requires 7800+ MT/s speeds just to offset what you allready lost by going above \~6000 MT/s and GEAR-1 mode.
In general 5600 MT/s RAM bandwith does allready saturate the 1 CCD RYZEN CPUs - the 8-core RYZEN CPUs can only utilize around \~55GB/s for computational gains. Lets not get into how AMD also halves the bandwith (*) between the I/O-DIE and the single CCD RYZEN CPUs.
(*) Lets just say, there is a reason why "AIDA64-gamers" use R9 RYZEN CPUs for metrics and with FCLK overclocking, stay as far away from computational benchmarks as possible, because the latency weirdness makes it allready stupid enough for those who know what happens with a higher FCLK, but there is also a fantastic performance regression. RYZEN overclocking is marvelous if you never ever test performance gains.
But enough of this dooming, this is social media and not an overlocking forum, where you might be forced via moderation to keep it more honest. š
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TLDR: If you are able to return your RAM kit and get a "normal" / recommended 6000 CL-whateveryouthinkisgood kit with EXPO, you could make your DIY experience a lot easier. Otherwise try to enjoy the manual RAM OC process. You either like it or you might research for your next build 5 minutes extra when it comes to RAM compatibility and recommendations. š
DZCreeper@reddit
Your CPU has to be capable of 3200MHz memory controller clock which is rare. Running your kit at DDR5 6000/6200 with matching 3000/3100MHz UCLK is easier.
https://youtu.be/Xcn_nvWGj7U
Also, make sure your sticks are in slots 2+4. Using slots 1+3 drags down signal quality, the electrical layout is not optimized for that on consumer motherboards.
Cheap_Theory_7162@reddit (OP)
Thank you even 6000 would be great