ROG G751-JY BIOS 211 NVMe Upgrade Guide Step by Step

[chris_tronic]

good news very nice. Ive also installed a second ssd beneath the M2 Drive. Its a pity that the HM87 PCH only has PCIx4 Gen2 ability.
Somebody "Aeolisio" managed it to run in Gen3 in full speed. He showed a pic of his M.2 working in Gen 3 with 2200 MB/s on a G751-JY.
I didnt find out if this is really possible or fake.. would be great if we can open this bottleneck... and get full speed.
Enjoy your M2 High Speed NVMe Drive. And many thanks for writing back.

Greetings from Germany

Chris

[Intrepidtron]

Any reason why this guide wouldn't work for the G771JM-DH71-CA?

I assume it also doesn't support NVMe out of the box, as the G771JW doesn't (https://rog.asus.com/forum/showthrea...960-EVO-250GB).

Thanks in advance.

[feihtthief]

Thank you again @chris_tronic for this great guide.

Tested with the 960 Evo 256GB from my colleague. Worked like a charm. Did a Clean Windows 10 (1709) install from USB stick without a hitch.

Samsung Magician recognizes the drive & trim support works.

Conclusion: NVME on G751JY can be done.

Benchmarks attached:

Crystal disk mark version: 6.0.0 x64
Test size: 8GB
Test count: 5

Crystal disk mark stats (Default driver)

Sequential Read (Q= 32,T= 1) : 1633.926 MB/s
Sequential Write (Q= 32,T= 1) : 1441.562 MB/s
Random Read 4KiB (Q= 8,T= 8) : 1306.480 MB/s [ 318964.8 IOPS]
Random Write 4KiB (Q= 8,T= 8) : 1272.528 MB/s [ 310675.8 IOPS]
Random Read 4KiB (Q= 32,T= 1) : 451.841 MB/s [ 110312.7 IOPS]
Random Write 4KiB (Q= 32,T= 1) : 363.350 MB/s [ 88708.5 IOPS]
Random Read 4KiB (Q= 1,T= 1) : 46.156 MB/s [ 11268.6 IOPS]
Random Write 4KiB (Q= 1,T= 1) : 109.746 MB/s [ 26793.5 IOPS]

Crystal disk mark stats (Samsung driver)

Sequential Read (Q= 32,T= 1) : 1667.677 MB/s
Sequential Write (Q= 32,T= 1) : 1424.893 MB/s
Random Read 4KiB (Q= 8,T= 8) : 1320.152 MB/s [ 322302.7 IOPS]
Random Write 4KiB (Q= 8,T= 8) : 1292.003 MB/s [ 315430.4 IOPS]
Random Read 4KiB (Q= 32,T= 1) : 548.925 MB/s [ 134014.9 IOPS]
Random Write 4KiB (Q= 32,T= 1) : 452.200 MB/s [ 110400.4 IOPS]
Random Read 4KiB (Q= 1,T= 1) : 50.631 MB/s [ 12361.1 IOPS]
Random Write 4KiB (Q= 1,T= 1) : 142.450 MB/s [ 34777.8 IOPS]

Test : 8192 MiB [C: 12.8% (29.8/232.3 GiB)] (x5) [Interval=5 sec]

For comparison my original AHCI drive as shipped from Asus (SAMSUNG MZHPU256HCGL-00004):

Sequential Read (Q= 32,T= 1) : 1170.173 MB/s
Sequential Write (Q= 32,T= 1) : 844.104 MB/s
Random Read 4KiB (Q= 8,T= 8) : 502.087 MB/s [ 122579.8 IOPS]
Random Write 4KiB (Q= 8,T= 8) : 262.785 MB/s [ 64156.5 IOPS]
Random Read 4KiB (Q= 32,T= 1) : 326.940 MB/s [ 79819.3 IOPS]
Random Write 4KiB (Q= 32,T= 1) : 224.309 MB/s [ 54762.9 IOPS]
Random Read 4KiB (Q= 1,T= 1) : 29.045 MB/s [ 7091.1 IOPS]
Random Write 4KiB (Q= 1,T= 1) : 72.635 MB/s [ 17733.2 IOPS]

Test : 8192 MiB [C: 73.8% (175.2/237.4 GiB)] (x5) [Interval=5 sec]

[chris_tronic]

Any reason why this guide wouldn't work for the G771JM-DH71-CA?

I assume it also doesn't support NVMe out of the box, as the G771JW doesn't (https://rog.asus.com/forum/showthrea...960-EVO-250GB).

Thanks in advance.

I suppose, the DXE Driver should work with the Asus G771 as well.
The Bioslength could differ compared to the G751, but the implementation should be the same, like i already showed in my Step by Step Guide.
The most important thing is, that you install the NVMe DXE driver in into free Space after another DXE Driver. And that the moded Bios has the same length compared to the non-moded Bios.

I hope, I could help you

Regards

Chris

[nvr21]

Any ideas if this is compatible with it http://www.dx.com/p/pci-e-v9-5-exp-g...m_rid=88092606

[Gps3dx]

Any ideas if this is compatible with it http://www.dx.com/p/pci-e-v9-5-exp-g...m_rid=88092606

how exactly does pluggin ext-GPU into the M.2 is similar to connecting a storage device and modding the uefi to support NVME ( which is the topic of this thread ).

you've already made new thread with that question - NO NEED to SPAM other threads.

[vlad_iv]

Thank @chris_tronic so much!!!!
I updated my ASUS G751JT with Samsung 960 EVO 1T, it boots and works!

[season_of_ages]

Hello, here are the links ,

AFUWIN64 http://voltground.com/vbioses/AFUWIN64_v3.05.04.zip
MMTOOL Aptio 4 voltground.com/vbioses/MMTOOL_v4.50.zip
AMIBCP Aptio 4 http://voltground.com/vbioses/AMIBCP_v4.53.zip

I can create check and send the modified 211nvme.rom Bios File file to you, if you send me your saved Bios with afuwin (valid only for G751having a PCIe x4 M.2) Than you only need to Flash the new Bios with AfuWin64 without to be afraid bricking your G751.
Just send my an E-Mail to: chris-tronic@gmx.de

Regards

Christian Karbe ( Informatic / Computer Enginneer)

Hello, I just purchased a G751JT-CH71 with an m.2 connector, and I just received my Samsung 960 Evo NVMe SSD. I would like to attempt this procedure, unfortunately all the aforementioned links are dead. Might I find them anywhere else?

[Clintlgm]

Hello, I just purchased a G751JT-CH71 with an m.2 connector, and I just received my Samsung 960 Evo NVMe SSD. I would like to attempt this procedure, unfortunately, all the aforementioned links are dead. Might I find them anywhere else?

I would not proceed without getting into contact with the original Poster so far as I know this is the only thread on this subject!!

[season_of_ages]

Alrighty, I am have modified my BIOS and I'm ready to risk flashing. I tried already, but the build date is "too old"
It's the same version I currently have installed, can someone help me get passed this final hurdle?