Z97 Extreme6 Post Error 64

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   A bad SATA cable can cause the system to fail to post so I would disconnect your HDDs too and see if you can get into the UEFI. Have you tried the second BIOS yet?

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Xaltar Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 29113	Post Options Post Reply Quote Xaltar Report Post Thanks(0) Quote Reply Posted: 10 Nov 2015 at 3:58pm
	A bad SATA cable can cause the system to fail to post so I would disconnect your HDDs too and see if you can get into the UEFI. Have you tried the second BIOS yet?

rustybh1 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 10 Nov 2015 Status: Offline Points: 8	Post Options Post Reply Quote rustybh1 Report Post Thanks(0) Quote Reply Posted: 10 Nov 2015 at 3:54pm
	Good advice thanks - just tried with an older 850w psu, no difference, then followed that by removing both gpu's, sticks of ram and all the SATA connections except the one the OS is connected to. I have no access to the BIOS/UEFI setup screen, even with a PS2 keyboard and mouse so can't do anything with the BIOS setup.

Xaltar Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 29113	Post Options Post Reply Quote Xaltar Report Post Thanks(0) Quote Reply Posted: 10 Nov 2015 at 3:04pm
	Your board has dual BIOS, try switching to the second BIOS and seeing if that allows you to boot. If that still gives problems then you will want to try a different PSU with the system to rule out a failing power supply. You can also try removing everything from the system except 1 stick of RAM and CPU then see if you can boot off the iGPU. Edited by Xaltar - 10 Nov 2015 at 3:04pm

rustybh1 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 10 Nov 2015 Status: Offline Points: 8	Post Options Post Reply Quote rustybh1 Report Post Thanks(0) Quote Reply Posted: 10 Nov 2015 at 11:59am
	First of all here's my set-up:- MB - Z97 Extreme6 OS - Windows 10 64-Bit Bios - P2.50 CPU - Intel i7-4790K Cooler - NZXT Kraken X41 RAM - Corsair Vengeance Pro 32GB 1600MHz GPU - 2x EVGA Titan X PSU - AX1500i SSD - Samsung 840EVO 500GB My system has been totally stable since I built it back in April of this year. Apart from upgrading the GPU's in the summer, I've made no hardware changes and haven't installed any new software for a few weeks. I tried launching a game the other evening and the screen froze. The only option I had was to shut the PC down, but when I tried to reboot a few minutes later, I was stuck on a post screen with "64" showing on the MB. I've tried several attempts at the 10 hour CMOS clearing exercise, which on reboot gives me the option to load UEFI defaults by pressing F1, which just produces a blank screen (no MB post error though). I'm not one of the sensible people who keeps all the packing and extras, and I'm out of my 30 day return with Amazon, so does anyone have any suggestions?