- I have an ordinary DDR2 RAM stick and I would like to make it compatible with
the NVIDIA EPP specification.
The easiest way to do that is to extract EPP profiles from SPD dump of another or similar RAM
stick that features EPP data. So, load the SPD data of your RAM
stick into the Hex Editor by pushing the Read button on the main toolbox.
Now select an appropriate SPD address that corresponds to the memory
module to begin reading.
When the EPPROM data has been read you can update it with EPP
profiles. Under the Filemenu select
Update Dump with...
Now choose a desired EPP compliant SPD dump file created by Thaiphoon Burner and press the
Open button. A new dialog box will appear.
As you probably know, according to the NVIDIAТs specification bytes 63h-7Fh are reserved for the
EPP profiles. Therefore, we should overwrite this address range with
the EPP data from the selected dump file. In the
Left-most Hex Value field type 63 and in the Right-most Hex Value field type 7F.
Now press Update.
green cells represent our integrated EPP profiles. The final step
is reprogramming the memory module with our updated SPD data. Actually, we
have to reprogram bytes 63-7Fh only. Therefore, choose
Rewrite Selectively under the
or click on the Write button on the
main toolbox and choose the same command.
Another window will appear.
Now type 63 in the Left-most Hex Value
field and in the Right-most Hex Value field
type 7F. Make sure the SPD Hex Address
contains the same address value that corresponds to your memory
module. Set Refresh Hex Editor on
completion to checked
in order to read the SPD data again after the EEPROM has been
reprogrammed. Now click on the Write
button to begin reprogramming.
As we mentioned before, the described method is the easiest.
Another method of implementation of EPP profiles consists
in creating profiles by using EPP Enhancer of Thaiphoon
Burner. Despite it takes more time to integrate
profiles into the SPD it is more preferable when you need to
choose a type of EPP profiles or a number of them. Besides, EPP
Enhancer provides more flexible tweaking for all EPP parameters. We
also recommend you to run EPP Enhancer before reprogramming
EEPROM to be sure you have selected a proper SPD dump file with the
suitable EPP profiles for your memory module.