[SOLVED] DDR4 3200 Mhz on 3000 Mhz in bios

[Tomislav25]

Hi,

I have 4x 3200 (8GB) Mhz Kingston cl 16 memory instaled which equals 32 GB ram. I tured on second docp profile in bios. Now ddr4 works on 3000 Mhz instead on 2400 Mhz. I tried that option.
And it works. My question is, is this overclock because I think its not because the cpu supports this speed as well as ram. I am just using my ram and cpu capabilities.

System specs:

Ryzen 5 5600
Asus tuf gaming B550-plus
RX 6650xt, sapphire pulse
SEASONIC core gm 650w gold
4x 8GB Kingston, cl 16, 3200 Mhz.

 

[Aeacus]

is this overclock

Yes, it is.

JEDEC default for DDR4 are;

Standard name	Memory clock (MHz)	I/O bus clock (MHz)	Data rate	Module name	Peak trans- fer rate (MB/s)	Timings CL-tRCD-tRP	CAS latency (ns)
DDR4-1600J DDR4-1600K DDR4-1600L	200	800	1600	PC4-12800	12800	10-10-10 11-11-11 12-12-12	12.5 13.75 15
DDR4-1866L DDR4-1866M DDR4-1866N	233.33	933.33	1866.67	PC4-14900	14933.33	12-12-12 13-13-13 14-14-14	12.857 13.929 15
DDR4-2133N DDR4-2133P DDR4-2133R	266.67	1066.67	2133.33	PC4-17000	17066.67	14-14-14 15-15-15 16-16-16	13.125 14.063 15
DDR4-2400P DDR4-2400R DDR4-2400T DDR4-2400U	300	1200	2400	PC4-19200	19200	15-15-15 16-16-16 17-17-17 18-18-18	12.5 13.32 14.16 15
DDR4-2666T DDR4-2666U DDR4-2666V DDR4-2666W	333.33	1333.33	2666.67	PC4-21300	21333.33	17-17-17 18-18-18 19-19-19 20-20-20	12.75 13.50 14.25 15
DDR4-2933V DDR4-2933W DDR4-2933Y DDR4-2933AA	366.67	1466.67	2933.33	PC4-23466	23466.67	19-19-19 20-20-20 21-21-21 22-22-22	12.96 13.64 14.32 15
DDR4-3200W DDR4-3200AA DDR4-3200AC	400	1600	3200	PC4-25600	25600	20-20-20 22-22-22 24-24-24	12.5 13.75 15

Anything outside of the standard, like different frequency, different timings and/or different voltage, is OC.

Namely;

Hardware, and particularly memory, requires standards to ensure maximum compatibility with other devices. For DRAM the Joint Electron Device Engineering Council, or JEDEC, sets guidelines for memory speed, timings, and voltage. For example, DDR4 is rated up to DDR4-3200/PC4-25600, that is 3200 MT/s (1600 MHz) for 25,600 MBps (25.6 GBps) of bandwidth, with a CAS timing of 22 and the memory running at 1.2V.

It’s possible to exceed these baselines with Intel’s Extreme Memory Profile (XMP) or AMD’s Direct Overclocking Profile (DOCP). These include memory profiles that can raise voltage and clock speed, and/or lower timings as an extension of Serial Presence Detect (SPD) for the JEDEC. This is a form of overclocking as it exceeds standard parameters, but can achieve much higher performance than what is otherwise possible. Users can manually dial in a multitude of settings and, with proper testing, achieve superior results. XMP, therefore, is basically a guaranteed overclock.

 

[Tomislav25]

Ok, thanks, I will turn it back to normal frequency not to cause any issues.

 

[Aeacus]

not to cause any issues.

Your RAM is rated for 3200 Mhz. If the XMP holds and doesn't cause system instability, there's no harm using it.

For example; i too have Kingston RAM (Savage series, 4x 4GB) and if i'd use JEDEC default, my RAM speed would be 2133 Mhz. But since my RAM is rated for 3000 Mhz and it also has XMP for 3000 Mhz, while my system being stable when i have my RAM at 3000 Mhz. Due to that, there's no harm to use XMP and i've used my RAM "OC" for ~7 years now, issue free.

Btw, you will not void your RAM warranty if you use the built-in XMP profile with the RAM.

 

[Kona45primo]

It's a "factory" overclock. Your CPU should be able to handle 3200mhz without issue. 2400mhz is just the stock base clock.

XMP is a completely safe setting, but if you'd rather not use it it's all good. That being said its easy enough to turn on if you want to try it in the future. I've got 4 sticks at 3600mhz on a 5700x, no issues for a year+ of daily office use.

 

[Tomislav25]

Thank you guys. I recently updated bios to the latest version. Now I'm running D.O.C.P. profile1 which is even faster than profile2 (3000 MHz). So my DDR4 speed is 3200 MHz and is stable. Also I noticed no stuttering in game but that is cause of latest bios. Now I use new bios and a new profile 👍.