[HELP] Run at Rated Speed: GALAX(or KFA2) HOF Series 3200MHz C14 8GB*2 Kit, 4 Channels

cherry_hinz

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Dec 26, 2011
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I have a new computer.
The shop assembled the PC for me.
There are 2 kits of "GALAX HOF DDR4-3200 16G (8G*2)"
Rating: D4-3200 8G C14-14-14-34 1.35V
So there are total of 32GB memory.
I know GALAX may not be well-known in Europe.
Instead, "KFA2" is used for the RAM, so I put the name here for your reference too.

I am now testing my PC.
I would like to run the memory at rated speed, 3200MHz C14.

My New Computer
CPU: Ryzen 1700X
Ram: GALAX HOF 3200MHz C14 8GB (4 sticks)
Motherboard: Gigabyte AX370-Gaming 5, newest BIOS
PSU: Corsair RM650x
Windows: Windows 10 Home Edition

Bios's Default RAM settings
Frequency: 2133MHz
DRAM Voltage: 1.20V
Memtest Result: 4 full passes (22hr),0 error, :D
aida64 System Memory stress test: tested for 1 hour, 0 failure, :D

OC RAM settings, Try to Run at Rated Spec
RAM Frequency: 3200MHz (XMP profile enabled)
Memory timing mode = Manual
Channel Interleaving = Enabled
Rank Interleaving = Enabled
DRAM Voltage: 1.35V
PC can boot well, enter Windows 10. I never see any BSOD.
I can play recent games like ROTTR, although the game may crash in an hour.

Memtest Result: tested each individual ram / 2 rams in same kit.
Always see a few errors (below 20), usually in test #3, #6, #7 within 1 or 2 passes.
All rams not quite stable, usually see some error within 2 passes.

aida64 System Memory stress test: failures in 30min, somtimes in a few min



I am now quite certain that my RAM's OC settings in BIOS caused the instability in my RAMs.
So, how should I tune my RAM settings (voltages, timings) to make the most out of my RAMs?
Any comment is welcomed!
Thanks in advance!
 

cherry_hinz

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Dec 26, 2011
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18,510
After numerous trials and errors,

I can now use 3200MHz, DRAM 1.35V, channel interleaving, rank interleaving,
and the following timing setting is found to be stable, able to sustain aida64 stability test (cpu+fpu+cache+mem all ticked) for over 9 hours
14-15-14-14-34

Question:
2nd value (read delay) is 15,
3rd value (write delay) is 14.
Is this okay or not?