Zucker and others.

Would you guys happen to know what type of eeprom chip the RF uses for bios? I've pulled my case apart a few too many times this week to open it up again today and check!

Need to get myself a few spare eeprom chips that I can use for testing bios modifcations. Friend of mine has a nice EEPROM writer with full PC software control so all I need are the chips to screw up, this way I don't need to damage my original Asus EEPROM and can throw it back in anytime!

Now the reason. I've finally got my head around the 1B and 21 MUI module interaction at bios setup level so I think I can successfully make some changes to the bios I don't plan to make my board unpostable by screwing up my original EEPROM testing with potentially broken bios code! Current public American Megatrends 8.0 tools don't work with the X48 bios' from what I can tell. I haven't successfully been able to load one up in AMIBCP yet, nor can I use the native ms-dos CMOS or DMI EDITOR from MSDOS 7.0, just says they are compatible with the bios. Funny thing is they handle P45 bios roms perfectly! Joys of high end hardware

What this means is I've had to get my head around what the AMIBCP UI does automatically, that is indexing the rom image and creating a tree of all the bios settings, setting their values, etc. It's so much harder to try and imagine how it looks and jump around a hex editor and doing data offset/index offset to track pointers and references! Comprehension is now there thougH, so I'm alot farther along the track than before thanks to Polygons amazing AMI reverse eng work he's done so far.

I've found something interesting with AI Clock Twister that appears to be transparent at least when AI Overclock Tuner is set to Manual.
AI Clock Twister has 2 Profiles for each selectable item, but these can't be manually set at present not directly. From what it looks like Profile 1 or 2 is selected by the Super MEM Profile menu option (AI Overclock Tuner ->). I'll confirm this when I get back from work later today need to check in bios. Heres the hex dump from Module 21 MUI.

Profile #1 :.Has lower DRAM latency.setting.Profile #2 :.Has higher DRAM.frequency setting..Note : Only valid.profiles can be.shown on the list

NB: The '.' is 0x0D hex, which is ASCII code for character return aka \n or newline.

Thing is this is linked to the Module 1B menu function index pointer array for AI Clock Twister so I need to investigate further and figure out whether adding an option to select profile manually from within AI Clock Twister works first and foremost and then makes any negligible difference to performance or stability!