Adjust RAM clock speeds and latency settings directly.
Adjust RAM clock speeds and latency settings directly.
I believe your motherboard has incorrect timing settings even when XMP is enabled. You’d like to adjust the timings manually, but it’s unclear where to place specific values. AIDA64 Extreme displays the correct XMP v1.3 settings for your DDR3: XMPv1.3: @1200 MHz 10-12-12-31 (CL-RCD-RP-RAS) / 43-313-2-6-16-9-9-26-7 (RC-RFC-CR-RRD-WR-WTR-RTP-FAW-WCL). Your motherboard timings should match these: DRAM CAS# Latency, DRAM RAS# to CAS# Delay, DRAM RAS# PRE Time, DRAM RAS# ACT Time, DRAM Read to PRE Time, DRAM RAS# to RAS# Delay, DRAM WRITE to READ Delay, DRAM CAS# write Latency, DRAM WRITE Recovery Time, DRAM REF Cycle Time, DRAM Row Cycle Time. Follow the guide carefully and check the values against your components. You can find more details on Overclock.net if you need further help.
The motherboard may not accommodate all configurations. You can attempt using the values from AIDA64 Extreme while keeping other settings automatic. Although boosting to 2400 MHz through overclocking is feasible, you could encounter instability or other problems.
I tested 1200MHz at 2400MT/s with a voltage of 1.65v using the first four clock cycles: 10-12-12-31 2T, and it worked smoothly without any problems. Now I need the remaining XMP timings to match correctly, including RC, RFC, CR, RRD, WR, WTR, RTP, FAW, and WCL.
It's a shortened version of this, covering CL-RCD-RP-RAS, with certain items in the same sequence. Manual: https://dlcdnets.asus.com/pub/ASUS/mb/So...=Crosshair V Formula-Z
Maybe I'm not smart enough, but I can only fill those RAM CAS# and latency details. Here’s the info you asked for:
- RAM CAS# Latency: 10 DRAM RAS#
- CAS# Delay: 12 DRAM RAS#
- Pre Time: 12 DRAM RAS#
- ACT Time: 31 DRAM Read to PRE
- DRAM RAS# to RAS# Delay: 12 DRAM RAS#
- DRAM WRITE to READ Delay: DRAM CAS# write Latency
Let me know if you need anything else!
RAM CAS# Latency: 10 DRAM RAS# to CAS# Delay: 12 DRAM RAS# Pre Time: 12 DRAM RAS# ACT Time: 31 DRAM Ref Cycle Time: 313 DRAM Row Cycle Time: 43 DRAM Command Rate: 2 Rest Auto from motherboard I noticed better performance when switching WR from 14(auto) to 16 and WTR from 7(auto) to 9
Sorry, I didn't catch you already talking about the manual. It's actually quite challenging. I haven't seen such detailed BIOS information in a long time.
I'll attempt it later. DRAM CAS# latency: 10. RAS# to CAS delay: 12. DRAM RAS pre-time: 12. DRAM read time: 31. RAS# to read delay: 6. DRAM write to read delay: 9. CAS# write latency: 7. DRAM write recovery time: 16. Ref cycle time: 313. Row cycle time: 43. DRAM read to write delay: 9. Write to read delay (DD): auto. DRAM write rate timing: auto.