Hi @Jasperkiller1, unfortunately I have nothing substantive to add to your request, other than to confirm I was also unable to make this work. I have since gotten rid of my N4640G.
R01-B1.zip (7.2 MB)
I have modified BIOS last year(first time i mod this machine was 2020, and in 2023 i made this bios mod again). it have some modification for myself.
not based on your dump. seems your dump is the same as official one.
dram spd write → true
launch csm → never
ac resume → off
gfx low power mode → disabled
render standby → disabled
and unhide menus.
this bios will support all lga1151 cpu, except xeons.
and when using with cfl u0/p0/r0 stepping, please do pin mod.
if want use xeon or bga1440 cpu, please set offset 0x102 from 0x90 to 0x91, then these cpu will work, and Intel ME will be partially shutdown. so Intel ME related stuff will not work at that situation. such as HDCP, Intel PTT(fTPM), Intel TXT, Intel SGX, resume from sleep under hackintosh using igpu, etc.
sorry for my capacity, it can not support bga1440 10th gen cpu(cpuid a0652). but 6th-9th gen work.
perhaps my machine have a hardware issue so that all my 3 audio jack dont work.
the acer C650/N4640G with LGA1151/Skylake/ALC233, have R01-xx original bios, should compatible with this bios, whatever 65w/90w/135w.
Sorry I was inactive, was gone for a couple of days, that was the original bios I flashed on it
indeed. (lost my backup due to corruption and bought the bios file off some guy on ebay)
Here is a dump I just made
But looking at your bios file you sent it looks like that should work, looking at it with coffeemod it should work with 8th gen cpus as well
Just to be sure you also had the 65w variant right? Read that there is a lot of confusion about different systems with the same name.
I’m honestly so pleasantly surprised!
That is one hell of a bios mod, all those options.
I3 8100t is working in there, had to turn on csm in the “old” options for it to boot my m2.
Couldnt find the option in the “admin” options, but it’s working perfectly!!
Thanks a lot for @dsanke works. I successfully flash the modded bios into my N4640G using Intel ME. It’s a bit tricky to disable ME by shorting pin 1-3 of ME_DISABLE pins (next to clear cmos pins) during boot up process.
I also included the bios region here which extracted from the dsanke’s works. Hopefully someone will continue his works by supporting bga1440 10th gen cpu (cpuid a0652). modded_bios.zip (3.8 MB)
Hey, thanks for helping out! i tried to flash your bios but it doesn’t work because i have the N4640 V2 and BIOS is R02-B1 (latest from Acer Support website) and the R01 doesn’t flash on the R02 models…, could you please mod the bios for N4640 V2 (R02-B1) and upload the modded bios so i can test it? have a i3-9100T and wanted to upgrade my cpu… i have tried to mod the bios but was not sucessfully … thanks for helping!
Any chance that R02 will receive coffelake bios? I tried to load the bios from website (i dont have this unit yet), but after combine bios+ me, i got only 8mb file not 16 mb like you. Could you share your time to look up at spi dump from previous member. Cause now R01 is not available in my country.
i need the spi dump from your machine. if you can make a dump, i can assume you have the ability to flash unofficial bios and unbrick. if you can not make your dump, then how do you flash it?
@dsanke There is spi dump from previous requested member (@9tech ). I can spi dump and unbrick, tried searching topic of me doing with 3050micro with no sucess.
i see 2 variant of r02, ph11k and ph11p, i dont know the difference.
your dump is ph11k @9tech ,thanks for the file.
i modified the file based on this dump.
the bios wont support bga1440 10th gen, and pre-skylake es (which have cpuid not 506e3).
the bios dont support pre-kaby lake es because the lack of uCode for cpuid 506e8, if need, add it yourself. i didnt do it because the bios size limit.
for xeons or bga1440s cpu, please set offset 0x102 from 0x90 to 0x91, then these cpu will work, and Intel ME will be partially shutdown. so Intel ME related stuff will not work at that situation. such as HDCP, Intel PTT(fTPM), Intel TXT, Intel SGX, resume from sleep under hackintosh using igpu, etc.
and i didnt look into option unlock, because i have no machine to test, and no time to dig.
@dsanke
Thanks a lot!
I tried to do it yesterday myself with the Coffee Lake mod tool, but had some issues with it . I will try it as soon as my I5 8400 arrives.
. I will try it as soon as my I5 8400 arrives.