This is my first time do some overclocking for RAM so please excuse my ignorance in the world of Overclocking.
Just wanted to share something small but meaningful to me. I spent the past few days learning RAM tuning and trying to stabilize a non-ideal setup:
- 64GB DDR4 (4x16gb)
- 2× Samsung + 2× Hynix (mixed chipsets)
- Dual-rank + dual-rank
- Running on B550 with a Ryzen CPU
I know this isn’t a world-record OC or anything like that but just something I’m proud of because mixed RAM kits are usually a nightmare to tune (as far as I know). Most guides assume same chips, same rank, same behavior. Apparently, mine definitely didn’t match 😂
After a lot of trial and error, latency testing, OCCT, and several Y-Cruncher failures, I finally got it fully stable. Here is my config:
| tCL | 16 |
|---|---|
| tRCDRD & tRCDWR | 17 |
| tRP | 17 |
| tRAS | 34 |
| tRC | 52 |
| tRRDS | 4 |
| tRRDL | 6 |
| tFAW | 16 |
| tWR | 10 |
| tRTP | 10 |
| tWTRS | 4 |
| tWTRL | 10 |
| tCWL | 14 |
| tCCD_L | 8 |
| tCCD_S | 8 |
| tRFC | 550 |
| tRFC2 | Auto |
| tRFC4 | Auto |
| tCKE | 6 |
| DRAM | 1.350V |
| SoC | 1.15V |
| VDDP | 0.900V |
| VDDG CCD | 1.000V |
| VDDG IOD | 1.050V |
| PROC ODT | 36.9 |
| Power Down Mode | Off |
| Gear Down Mode | On |
Huge credit to this tuning guide though I still get confused with it:
https://github.com/integralfx/MemTestHelper/blob/oc-guide/DDR4%20OC%20Guide.md
My goal is max performance with max stability and will be used as a daily driver config.
I'm not sure if this is the limit of it or if the result performance is something amazing. Though I run some test and it is stable using OCCT for 90 mins.