[TOOL] Easy automated Mod tool for Coffee Lake bios

@gpvecchi
with 2xxx version bios, it should work.
PS: recommend use fixed voltage and disable SVID support.

help me

Hello, I have a Asrock z170 pro4s and I can’t boot with a intel 9400f after the bios update. Absolutely nothing happens then I try to boot. I’ve chosen the correct S-spec: SRF6M and the BIOS was flashed. I have also made the connection on the CPU pin. My original I3-6100 is still working fine. What can I do futher?

@mega_nix

The 9400F has 3 revisions - are you sure you inserted the correct microcode?

9400F U0 906EA
9400F P0 906EC
9400F R0 906ED

Have you checked the ME firmware version on the motherboard is correct? (11.6.x.xxxx or 11.7.0.1xxx)

Thanks for quick answer! Yes the S-spec is another way of seeing steeping.s-spec SRF6M = u0

How do I check my Me firmware version?

edit: Yes my firmware is version 11.6.xxx damn

@mega_nix

Try this BIOS based on 7.50;

z17p4s_mod_7.zip (7.6 MB)

I successfully flashed your BIOS, but it still doesn’t work.

Did you connect the SKTOCC pins so that the motherboard detects the CPU?

the 2 pins? Yes I used Electric paint for it

https://ibb.co/XSpTGrW like this.

The sticky mess on the other pins are tape for isolating.

@mega_nix Thanks for the image, you’re over to the left by 1 pad.

That should fix it.

haha… I’m sure I counted several times… smh

I will try, thanks I owe you!

edit: And it works!

@mega_nix Sweet, enjoy your new CPU!

BTW that BIOS has 5 micrcocodes with support for;

506E3 Skylake (6th Series)
906E9 Kaby Lake (7th Series)
906EA Coffee Lake (8 & 9 Series)
906EC Coffee Lake (8 & 9 Series)
906ED Coffee Lake (8 & 9 Series)

@revlaay I used the tool and must say I’m impressed with the result. The tool did NOT update the ME version (was 11.0) but that’s not a problem.

there is one thing you shoud change, though: currently the microcodes inserted are the ones you have chosen (the latest, although they are currently outdated).
I think it is a better option to give the user the option of different microcodes as the latest provide a performance drop up to 10/15% compared to pre meltdown/spectre mitigation.

Hello Guys,
I’m using ASRock Z270 Taichi, but Can’t boot after updating to mod bios.
I have i7 9700T (R0 stepping) and want to use it.

I have also made a pin mod on the 9700T.
And microcode 906ED is embedded in mod bios, and my original i5 7600K is working fine.
ME firmware version tried “11.7.0.1229” and “11.6.0.1126”, but neither will boot.

This motherboard has two BIOS chips, is this the cause?
Are there other ways I can improve?

The ASRock Z270 Taichi is a known problem board for Coffee Lake, Svarmod ported Z370 Taichi BIOS to Z270 Taichi but it refused to boot if overclocked.

You might be ok with a non-k CPU.

I don’t have access to that BIOS - you might want to try contacting Svarmod.

@chinobino Thank you for reply!
I didn’t know it was a known problem motherboard.
I try to contact him, thanks.

Thank you!
I ran 9100F on B250 Gaming K4 BIOS 2.00 Smoothly :smiley:

Just want to clarify so i could do it correctly.

1. So this tool will does the entire guide from [GUIDE] Coffee Lake CPUs on Skylake and Kaby Lake motherboards ?
2. Do i still need to do PCI-E Fixing on the CPU as guide from Fixing PCI-Express for Coffee Lake CPUs on Sky/Kaby Lake non-Asrock(and some new Asrock) motherboards said?
3. Do i still have to flash the modded bios manually right?

i’m running on i3 7100 with MSI B250i gaming pro ac right now and planning to upgrade to i3 9100f and using my B250i as the motherboard.


BTW, Thank you for the tool.

Yes, it has PCI-E, NVMe, HT, etc. patches.

BTW Nice guide, to let you all know, just made a i3 9100F (SRF7W B0 stepping (no wiring/isolation needed)) working in a MAXIMUS VIII GENE with the following steps:
-Download this automated tool (dont put it where are whitespaces in parent dir names)
-Download a BIOS.CAP from ASUS website for your motherboard
-Run the tool on the downloaded BIOS.CAP, when it finishes you will get a NEW_BIOS.BIN
-Close all programs and flash (first the orignial .CAP, than) the NEW_BIOS.BIN with AFUWIN64 tool v3.05.04:

Using the AMI tool AFUWIN
[Guide] How to flash a modded AMI UEFI BIOS

Good luck!



So, only need to connect the two pins?