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Question What does XMP, DOCP, EOCP mean?

Tradesman1

Titan
Moderator
XMP is an Intel tech introduction to automatically set DRAM to intended data rates over and above a base level (for DDR3 it applies to DRAM 1600 and up), DDR4 for DRAM 2400 and up. You enable the feature, it reads the profile off the DRAM sticks and applies it in BIOS.

DOCP (Direct Over Clock Profile), is from ASUS for AMD motherboards and came as the motherboard makers didn't want to pay royalties to Intel to implement XMP on AMD motherboards. It effectively uses the DRAM XMP profile to set up data rates and comparative timings on the AMD motherboards for a variety of data rates.

EOCP (Extended Over Clock Profiles) is Gigabytes version of the ASUS DOCP..

Within the last couple of years, more and more the AMD motherboard makers are simply moving to XMP as it's an industry standard and much easier to keep up in the BIOS than other methods with the proliferation of new DRAM, tighter timings, etc.
 
Last edited by a moderator:
First off XMP is an Intel memory speed / timings extension. These are used for RAM modules that are rated beyond the standard JEDEC speeds. Most motherboards will default to using the fastest JEDEC speed that the platform supports. To utilize the XMP profile, the user has to specify in the BIOS / UEFI for the motherboard to use it. Sometimes there are more than 1 XMP profiles.

DOCP is an ASUS BIOS feature on AMD platforms that translate the XMP (which is Intel) settings to a compatible AMD (AMP) form. So that you can use the faster XMP profiles on AMD motherboards. The obvious reason that DOCP exists as with everything related to these two companies, the Intel standard is more popular and thus more readily available.

Not sure what EOCP is. OCP is overcurrent protection in PSU terms. I'll see if I can dig something up. Can you link to somewhere this acronym / mneumonic is used?

Edit: So I found it, it's a GigaByte BIOS feature that essentially does the same thing as ASUS' DOCP.
 

Tradesman1

Titan
Moderator
XMP is an Intel tech introduction to automatically set DRAM to intended data rates over and above a base level (for DDR3 it applies to DRAM 1600 and up), DDR4 for DRAM 2400 and up. You enable the feature, it reads the profile off the DRAM sticks and applies it in BIOS.

DOCP (Direct Over Clock Profile), is from ASUS for AMD motherboards and came as the motherboard makers didn't want to pay royalties to Intel to implement XMP on AMD motherboards. It effectively uses the DRAM XMP profile to set up data rates and comparative timings on the AMD motherboards for a variety of data rates.

EOCP (Extended Over Clock Profiles) is Gigabytes version of the ASUS DOCP..

Within the last couple of years, more and more the AMD motherboard makers are simply moving to XMP as it's an industry standard and much easier to keep up in the BIOS than other methods with the proliferation of new DRAM, tighter timings, etc.
 
Last edited by a moderator:

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