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#11
When "UEFI Only" is used, only UEFI devices will be listed.
When the DVD drive is empty, it can't be a UEFI device, so it will not be listed.
For information only, since I clean-installed Windows 10 a few months ago, I have never installed anything from GIGABYTE and never installed any drivers via Windows Update, and my PC has been working fine.
Yes. Finally, today did my 1st UEFI GPT installation. Set bios to(OPTION C) Win8 and CSM to NEVER (Full/Native UEFI) and Secure Boot OFF. Setup detected unpartitioned HDD (unallocated space) and I never bothered to create NEW partition there. Just select the unallocated space and clicking Next..my setup of Win 10 Pro x64 was completed in 6-7 mins.
After compulsory restart booted using F12 and found new entry Windows Boot Manager(HDD NAME). After booting from that entry completed the setup and confirmed that my Windows was installed in UEFI and GPT (MSINFO32 and Disk Management).
Later in BIOS enabled the Secure Boot option and the system booted fine again.
Last tried both Option A and Option B. The HDD was listed twice and had to select windows boot manager to boot. Non-UEFI prefix HDD didn't boot as expected with error No OS Found press any key to try next bootable device.
As this system is installed in UEFI mode and wont be having any other OS,will select the OPTION C (FULL UEFI) for regular use.
Thanks for all the help you guys offered.
Best Wishes
That mode is not available as I checked. If I need to boot other OS regularly, I will set bios to CSM Enabled Mode and always use F12 to select the boot device. (Win Manager for UEFI Win10 boot and other HDD for Legacy boot)
btw, I have a query regarding this particular installation I did today. should I post it here or in the Installation section?
Thank you once again.
If you paid for DDR4 RAM higher than 2133MHz speed than you've wasted money using defaults. Example you bought 3200MHz DDR4 RAM - With the BIOS set to defaults, the RAM will only run at 2133MHz because that's the default JEDEC spec for DDR4 RAM.
In order to run the RAM at its 3200MHz speed spec setting, you'll need to enable "XMP" setting in the BIOS/UEFI. XMP is disabled by default because XMP is considered an overclock feature, and thus not part of the default (Load optimized default) settings.
You could of course manually set the the RAM's speed, timings, and voltage, but then that would also override the "default" settings.
To see what your RAM is currently running at you can use an app like CPU-Z and look at the "Memory" tab. My RAM specs are 3600MHz @16-18-18-36. Voltage is 1.35 volts. looking at the CPU-Z memory tab shows this is what the RAM is running at (XMP enabled). Since I'm running in dual channel mode the 1800MHz speed would be doubled (1800 x 2 = 3600MHz). We also see the correct timings listed - 16-18-18-36...
Under the SPD tab (which also shows what XMP version your board supports) it show the JEDEC speeds (1066 x 2 = 2132MHz (2133MHz)), the XMP speed (1798 x 2 = 3596 (3600MHz)), timings and required voltage (up from 1.20 to 1.35) to run at those settings....
Just FYI![]()
I use option A. My HDD is listed twice as shown in the screenshot in post #10. I never have to manually select Windows Boot Manager, the default option.
I need not change the settings before selecting another device on the boot menu.
Unfortunately, the OP's motherboard and mine do not support DDR4 RAM. Thanks for the info anyway.
Unfortunately, my DDR3-1333 is lower than 2133MHz. Anyway, thanks for the info, which might be useful in the future.