Enabling Intel 750 NVMe boot with Windows Reset?

nostrocrompt

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Aug 27, 2015
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So I've just built a nice gaming rig and I picked up one of the Intel 750 NVMe SSDs. After building, installing, and configuring everything I discovered that I had neglected to flash my BIOS before installing Windows on the Intel 750 (I'm using an ASUS X99-A/3.1 motherboard) and it appeared I was getting only about 550-600mbps write speed on the hard drive. I subsequently read that in order to fully exploit the nvme protocol and its speed on the boot drive I should have flashed BIOS before installing Windows.
My question is, now that I have flashed BIOS, would simply doing a full reset of Windows on the drive make NVMe work, or do I need to re-start from scratch? Full specs if it helps:

Intel 5820k I7 @ 3.3 ghz
Asus X99-A/ 3.1 motherboard
16 GB Corsair DDR4 2400 RAM
nVidia 980 Ti
Intel 750 400 GB SSD
Seagate 1 TB 7200RPM HDD

Thanks in advance for the help; I bought the drive for performance, so I'm willing to do whatever it takes to make it fully functional!
 
Solution
Well if you have already flashed, does it give you the slow speeds still? You can try a full reset first. If that doesn't work then a full reinstall.

nostrocrompt

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Aug 27, 2015
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Update: Yes, the speeds were still slow after flashing BIOS, but after backing up my files and doing a Windows reset it is fixed! Full-on NVMe glory; max write speeds over 1000 mbps, and a Passmark score of 12000 +. Happy poster :)