Z270 Gaming K6 (Many questions)
Printed From: ASRock.com
Category: Technical Support
Forum Name: Intel Motherboards
Forum Description: Question about ASRock Intel Motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=5238
Printed Date: 26 Jul 2025 at 3:28pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Z270 Gaming K6 (Many questions)
Posted By: reptilematt
Subject: Z270 Gaming K6 (Many questions)
Date Posted: 28 May 2017 at 5:34am
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" rel="nofollow - Hi -- I have a Z270 K6 and have several questions with proper setup. My last motherboard was a Z77 Extreme 4 and I loved it. 1. I am using the Fatal1ty USB mouse port. Is it normal for my mouse (G700s) to have LED lights remain on after the PC is turned off? Is there a way to disable 5V USB power after shutdown in BIOS or a jumper? 2. I have a Samsung 960 Pro NVMe and somehow managed to install Windows 10 without UEFI fully enabled. Using Samsung Magician, it looks like the drive read and write speeds are good (about 3,460 MB/s Read and 2,146 MB/s Write). Will I loose any performance benefits in my 'Legacy' boot other than Fast and Ultra boot options? 3. When turning on the PC the Asrock boot logo loads, then a _ cursor blinks for about a second, and then Windows 10 loads. Is it normal to have this _cursor (black screen) for about a second before Windows 10 logon screen appears? 4. Which Ethernet LAN port should I use of the two? I updated to the latest BIOS ( I believe 2.0). Thanks everyone!
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Replies:
Posted By: parsec
Date Posted: 28 May 2017 at 9:41am
To answer your questions: 1. Yes it is normal for a wired mouse connected to any USB port to have power supplied to it. That is to allow starting the PC with the mouse or keyboard, and to charge cell phones and other devices while the PC is shutdown. You can try the following to turn off power from the USB ports, but I can't test it myself since I don't have a mouse with extra LEDs or a visible tracking LED. In the UEFI/BIOS, Advanced, Chipset Configuration screen, scroll down and find the Deep Sleep option. Set it to S5 from the default Disabled. 2. No loss of SSD performance at all with Legacy booting of an NVMe SSD. UEFI fully enabled is only applicable to the pre-OS environment. What you did was either by your choice or by chance, selected the entry for your Windows 10 installation media in the boot order that had the prefix, "UEFI:" before the device name. That is enough to signal the Windows 10 installer to use the EFI bootloader and to partition the SSD as GPT. 3. I have the same board as you, and a 960 EVO as the OS drive, fully UEFI enabled, and I have never seen underscore '_' cursor when the PC starts. I would not worry about it at all, probably a side affect of the way you installed Windows 10 in semi-Legacy mode. 4. No difference between the two LAN ports, use either one. ------------- http://valid.x86.fr/48rujh" rel="nofollow"> 
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reptilematt wrote: