[10-10-2009 - Notice I don't have this MB anymore, I've switched to UD4H, so I have no reason to follow BIOS updates anymore for DS4H, hopefully this thread still helps someone] Originally I posted this to XtremeSystems forums, and as it got some attention, I'll post this here too. LINK for available BIOS versions from GIGABYTE - F1 First release - F2a Updated CPU ID for Phenom 9950 125W -Also slight naming changes in BIOS (Memory Controller Freq. -> Northbridge Frequency) - F2 - F3h Updated CPU ID for Athlon X2 7750 -HT Link speed setting now works also updwards, earlier versions could only drop HT Link. -C1E support option disappeared -DCTs Mode disappeared (no option for ganged/unganged, defaults as unganged with 2x sticks) -New type of BIOS settings saving option with baby blue background, supports saving to / loading from HDD, FDD, USB - F3i -Nothing special changes (I did only a fast test) ^ All these have cold boot issue with ACC enabled. ----------- - F3m Mentioned here -Unreleased version that should have better compatibility with Phenom II's - F3o"Update CPU ID (for AMD NPRP)" (?) -C1E support option back -No cold boot issue with ACC enabled (I tried only once) -SLOW posting when ACC enabled -MUCH harder to get any overclocking stable -This is the worst version, but still it has some promising fixes. Not recommended for any overclocking. - F3t "Update CPU ID (for AMD NPRP)" This version has the same description as F3o. Could be an improved version. -Date is 2009/02/25 - F3 "Update CPU ID (AGESA 3.3.20)" -C1E support option disappeared again -Cold boot issue with ACC enabled still there* but now it can be passed with simply pressing reset. After that POSTing is a flash compared to earlier versions. -(01/13/2009). -Officially supports Deneb *EDIT: I have had problems with booting and now it seems that after shutting down from XP, and powering up after, the reset button will do the workaround but when shutting down from Win7, I have to cut the power before getting it up again. - F4a "-Improve Phenom II CPU compatibility" - Most probably cannot unlock the 4th core with 720 "-Improve Audio compatibility" -No C1E option -Ganged/Unganged option back -BIOS backup to HDD option -Highly recommended for benching -Gives good OC -No cold boot problem with ACC enabled -PCIe speed has a weird issue in AOD, keeps bouncing to high values when setting it. It's recommended to manually set the PCIe speed from bios. - F4 "Update CPU ID (Support AGESA18.104.22.168 code / AM3 CPU)" - F4V "Update CPU ID (for AMD NPRP)" Might just add support for new CPU's. - F5 "Update ACC code and CPU ID (Support AGESA 22.214.171.124 code for Phenom X3 CPU)" -Added EC Firmware (Normal / Hybrid) to ACC menu for core unlocking (Hybrid mode) -Now resuming from S3 works ok. - F6 -"Update CPU ID (Support AGESA 126.96.36.199 code / AM3 C3 CPU)" -2009/09/16 - F7B -"Beta BIOS" -"Update CPU ID (AGESA 188.8.131.52)" -2009/12/14 F7E -"Beta BIOS" -"Update CPU AGESA 184.108.40.206 for AMD 6core CPU" -2010/04/26 -------------------------------- If you need some of these, I could send them via email or msn. The versions that I don't have, are F2a, F3m and everything after F5. Updated 02-05-2010 *Note that these changes and functionalities have been tested with Phenom X4 9950 BE. Experience can be different with other CPU's* I haven't noted ALL changes of the different versions (haven't tried F3m, F3t and F4V), so feel free to make comments and additions. -------- Offtopic: AOD 2.1.5 will most assumably NOT work with this board, so get version 2.1.4 instead. I have tried both 2.1.5 versions (0218 and 238) and they will not even recognize AMD CPU. The newest 2.1.6 seems to work ok.