Zitat von Hyperia im Beitrag #72

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NVMe need 2GB/s , that's all so PCIe 3.0 4x or PCIe 2.0 8x is enough !!

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I have done the guide step by step, but my modded bios file is 2kb bigger than 8MB. The CH341 programmer say: "FIle length, beyond range of ill be ignored"

Zitat von LocutusEstBorg im Beitrag #597

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On the stock BIOS, my Rampage IV Formula (X79) & Samsung 950 Pro can boot and install Windows in UEFI mode but only with CSM enabled. Within CSM you can set everything to "UEFI only" and it will still boot, so it's practically the same as disabled. With CSM disabled, you can still install Windows in UEFI mode on to the NVMe drive, but it won't boot.
After modding it with the Rampage V Extreme (X99) modules, it can boot with CSM disabled. So even without modding it appears to be bootable in UEFI mode, but with CSM enabled.
I found that if Fast Boot is enabled while booting from NVMe, it does not detect any SATA drives at all and the drives disappear from Windows. By default when Fast Boot is enabled, it will initialize at least the boot SATA drive. This allows the other drives to be initialized after loading Windows. However when booting from NVMe, no SATA drives are initialized at all by Fast Boot and the SATA drives do not even work inside Windows.

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Answer is probably no but possible support for nforce chipsets? (Specifically the 790i ultra)

Zitat von enyceedanny im Beitrag #649

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That's odd. On my RIVE, I can boot fine with CSM disabled on stock BIOS. But I do indeed notice the same issue when enabling fastboot where it doesn't detect the SATA drives. Just like you, I didn't notice any difference, so I just disabled it.

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I've discovered an issue that I've narrowed down to the BIOS mod. Whenever I switch off my PC for several hours and boot it again, the GPU will not detect at all on my Rampage IV Formula. It beeps the "VGA not detected" code and boots with no display. I rebuilt the entire PC after buying a new PSU and tried a different GPU but the problem still persisted. One day I discovered that after a CMOS reset, the GPU detects immediately and works fine for several hours or days until I shut it down for an extended period. Whenever it fails again I have to do a CMOS reset. I also found that the "Save Profile" function no longer works. The BIOS crashes whenever I try to load a saved profile. Thus I have to enter the settings again manually. We've already confirmed other hardware malfunctions like SATA not working occur due to the mod. GPU not detected could be another one. I reverted to the stock BIOS and the issue got fixed completely - even the Fast Boot SATA got fixed.

Given that the only two models of NVMe SSD are the 950 Pro and Intel 750 and both have OPROMs, I feel it may be better to stick to CSM Enabled mode (with only UEFI enabled) instead of modding.

I flashed the modded BIOS again today and started facing more serious hardware problems. After changing any BIOS settings and restarting, the PC would go into a boot loop. The LEDs would come on for 2 seconds and then shutdown for 5 seconds, and the process would repeat. The only way to successfully reboot after changing BIOS settings was to switch off the PSU. My GPU also started giving more problems. Even when it detected successfully (given the VGA not detected problem) at boot, the monitor would not switch on at all. I had to physically unplug and replug the DisplayPort cable and reboot to get a signal.

Again, after reverting to the stock BIOS and using CSM, all the problems were resolved. The only issue with CSM is the boot logo displays at a lot resolution, including the Windows loading dots. The problems could be amplified in my case because I have almost all the PCIe slots filled (GPU 1, 950 Pro, Sound Card, GPU 2, RAID Card).

Im trying to add this nvme support for my Asus Z87-Pro - but Asus has stopped the .rom bioses and started with the .cap stuff. I can't use the guide like it's written because of this:( I want to use the newest supported bios for my motherboard + mod the nvme support in it, but ut seems its not possible? Would love some help on this :\

Zitat von Trnc im Beitrag #656

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Im trying to add this nvme support for my Asus Z87-Pro - but Asus has stopped the .rom bioses and started with the .cap stuff. I can't use the guide like it's written because of this:( I want to use the newest supported bios for my motherboard + mod the nvme support in it, but ut seems its not possible? Would love some help on this :\

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I'm trying to modify my Gigabyte Z77X-UD3H. How did you modify the bios without error? I used MMTool but it gives me and error the nvme module exceeds the volume size. The nvmeint13 gives a duplicate guid error. Could you provide a copy of your working Z77X-UD3H bios? What was the model and bios did you get your modules from?

I suggest you to use Uefi Tool. :)

Hi, thanks for the effort you all put into this.

I just installed Windows 10 x64 in UEFI mode on a SM951 attached to my old-but-gold ASrock Z68 Extreme3 Gen3.

What I did:
1. Insert uncompressed NVMe module from first post into current ASRock beta bios (2.31), flash that & reconfigure BIOS (undervolt, adjust temp target/fan speed, RAM timings, fan rpm, enable vt-d,...)
2. Boot my Linux and created a GPT partition table on the SM951 (using parted)
3. Create a Windows 10 UEFI Install USB Stick (using winusb on Linux with some manual tweaks for UEFI, guide here)
4. Set the "UEFI: My USB Stick" as first boot device
5. Install Windows

My GPU (R9 290) now only has 8 PCIe lanes according to GPU-z, even though my CPU has 20 lanes (yes, read: twenty - Xeon E3-1235, Sandybridge i7 equivalent with locked multiplicator but some other features).
But I suppose that is a limitation of the Z68, so I have to live with that until I uprade to a new platform in a few years.

Crystal Disk Mark results (default config: 5, 1GB, C: 8% (20/238GiB)):
Seq Q32T1: 1494 Read, 1261 Write
4K Q32T1: 365.2R, 269.6W
Seq: 1342R, 1208W
4k: 39.85R, 135W

That's not as fast as expected, but still better than any SATA based SSD.
A little bit better with Samsung 950 pro drivers:
Seq Q32T1: 1524R, 1228W [about equal]
4K Q32T1: 431.3R, 376.4W [that's a lot!]
Seq: 1380R, 1255W [about equal]
4k: 45.46R, 171.7W [writing improved by a good chunk]

Anvil score is 7847.80 with the samsung drivers.

Open questions:
1. How the h*** do I boot Gentoo again... (yes, refind, but thats offtopic anyway ;-))
2. Does it still boot if I unplug the USB Stick? [edit: yes, MS is not always as stupid as I think]

Other remarks:
I contacted ASRock for a BIOS for the Z87 Extreme3 (b/c I am stupid and mixed up my board with one I bought for someone else), and they gave me a BIOS version L2.61 - with all the NVMe modules, so legacy booting should be supported there.
1. ASRock is awesome!
2. If there is interest in the BIOS, send me a PM and I will send it to you/attach it in the forums. That way you dont have to bug the nice people at their support :)

I also asked for Z68, but I doubt they will recompile 2.61 with NVMe... But I will post an update once I get a reply.


You might want to add a note about better performance with better NVMe drivers to the 1st post ;)