First if the still have any stick of your old ram use it alone and try to boot If nothing changed shutdown your pc and unplug it, there is a bios switch on the down right edge of the motherboard next to sata ports, flip it to other side so you can use B bios instead of A bios Plug your pc and power it, see what happens If nothing goes wrong you should be able to boot to OS, but you need to use Secure Backup UEFI tool (B bios to A bios) as you should use A bios and leave B bios for backups For short steps: Shutdown PC, and remove power. Set the UEFI/BIOS select switch to the 'B' position. Apply power and start the PC. Let it boot into the OS. Restart the PC into the UEFI/BIOS. Start the Secure Backup UEFI feature, and allow it to complete. Restart the PC as prompted after Secure Backup UEFI is complete. Allow the PC to boot into the OS. Shutdown the PC, remove power. Set the UEFI/BIOS select switch to the 'A' position. Apply power and start the PC. Let it boot in the OS. Done. Note : I think this is more of a RAM issue than bios issues Answer from ThinkMention on reddit.com
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Tom's Hardware Forum
forums.tomshardware.com โ€บ home โ€บ motherboards
[SOLVED] - ASRock z97 Extreme4 ERROR CODES | Tom's Hardware Forum
March 25, 2020 - Unplugged all peripheral devices. Error codes I have seen: A2/D7 /64. After seeing an A2 error code. I proceeded to unplug the mouse and keyboard and restarted the PC. I saw a D7 code so plugged in the keyboard. After doing so, the 64 code appeared. Please could someone help me out because ...
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Reddit
reddit.com โ€บ r/pcmasterrace โ€บ asrock z97 extreme4 error code 64
r/pcmasterrace on Reddit: ASRock Z97 Extreme4 Error Code 64
June 6, 2016 -

Whenever I boot up my system, I receive an error code 64 on my motherboard. I've searched multiple places and found out it's a motherboard issue. I tried pushing the reset CMOS button and un tightening my CPU cooler a bit. Usually, I am able to solve my own problems, but I am at a loss right now. Any help would be appreciated.

EDIT: I unplugged a bunch of shit and apparently my PSP was drawing too much power.

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ASRock Forums
forum.asrock.com โ€บ forum_posts.asp
Asrock Z97 Extreme4 Error Code 6A? - ASRock Forums
Summary:Hi, I just put together a new build for gaming using the Asrock z97 extreme4 motherboard (windows...
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ASRock Forums
forum.asrock.com โ€บ forum_posts.asp
z97 Extreme 4 - Defective motherboard ? - ASRock Forums
Oh well i build a new z97 based system with an extreme4 and i'm getting a bunch of post codes...
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Super User
superuser.com โ€บ questions โ€บ 1358456 โ€บ asrock-z97-extreme4-dr-debug-code-10
motherboard - ASRock Z97 Extreme4 Dr Debug Code 10 - Super User
September 15, 2018 - I took the ram from the bad machine and put it in the good machine. That machine then worked fine. If I take all RAM out of the good machine I get code 53 - memory issue. If I put one stick into A2 I get code A6 - because I unplugged the SATA drives.
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Reddit
reddit.com โ€บ r/buildapc โ€บ old pc problems - asrock z97 extreme4 potential mobo failure
r/buildapc on Reddit: Old PC Problems - Asrock Z97 Extreme4 potential mobo failure
February 18, 2019 -

Troubleshooting Help:

What is your parts list? Consider formatting your parts list.

CPU - Intel Core i7-4790K Devil's Canyon Processor 4.0Ghz 5.0GT/s 8MB LGA 1150 CPU
CPU Cooler - Cooler Master Hyper 212 Evo Direct Touch 4 Heatpipe Heatsink
Motherboard - Asrock Z97 Extreme4 LGA 1150 Intel HDMI SATA6
RAM - G.SKILL Ripjaws X Series 32GB (4x8GB) DDR3 19200 2400MHz
Storage 1 - PNY CS1311 480GB 2.5โ€ SATA III Internal Solid State Drive
Storage 2 - Seagate Barracuda 1TB 7200RPM 64MB SATA 6Gbps 3.5in Internal Hard Drive
Storage 3 - SanDisk SSD PLUS 1TB Internal SSD - SATA III 6 Gb/s, 2.5"/7mm
GPU - EVGA GeForce GTX 1080 Ti FTW3 Gaming, 11GB
Case - Thermaltake Chaser A31 VP300A1W2N Mid Tower
PSU - EVGA SuperNOVA 750 G2 220-G2-0750-XR 750W
Optical Drive - ASUS 24X SATA DVD Burner DRW-24B1ST/BLK/B/AS
Operating System - Windows 10 64bit

Describe your problem. List any error messages and symptoms. Be descriptive.

I purchased the components and built this PC back in March of 2015, originally with a GIGABYTE GTX 970 and 8GB of G.SKILL Trident X Series (2x4GB). I upgraded the GPU and RAM in November of 2018 to the parts listed above, all bought used from ebay auctions but they seemed to be in good shape when I installed them. Not long after the upgrade (within a week) I started to get beeps from the motherboard on startup and occasionally a failed boot that would sort itself out in a minute or two. It never went away, so I simply avoided restarting the computer for a couple months. Yesterday, I turned it off because it was being rather slow and now I cannot reboot the PC. The mobo is displaying various error codes, including occasionally '55' and most often '36', which I've read indicates an issue with the RAM.

List anything you've done in attempt to diagnose or fix the problem.

I've removed the RAM, moved the sticks around in different slots, tried brand new RAM, etc, and I've cleared the CMOS several times between various RAM configuration changes. Today I also removed the GPU and tried to boot but it still resolves to error code '36' before inevitably showing F2 indicating recovery procedures in process (or so I've read).

Post relevant photos of build/parts here.

N/A

Provide any additional details you wish below.

If anyone knows how to help me fix it, please offer your advice. Otherwise, I'd like to know what my options are for replacement of the motherboard without sacrificing any of the other components. Everything should be in good shape. Not counting the ebay items I recently added, I've owned everything since factory new and always been rather gentle with the PC. I've never overclocked it or run very demanding games at high resolution. I do a lot of 3D modeling and 3D printing, so it gets most of it's miles from that. I believe most of my components should be good to go if I can replace whatever is failing in the system, but a direct replacement motherboard is going for almost twice what I paid for it back in 2015 and would keep me tied to DDR3 RAM for the foreseeable future. If I could, I'd like to move my current CPU to a DDR4-capable motherboard and upgrade to DDR4 RAM while maintaining all of the other components as is. If anyone can recommend a motherboard that would be a good fit for this application please chime in. I'm pretty inexperienced and ignorant with the latest PC tech so please be gentle.

Thank you!

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Asrock
asrock.com โ€บ support โ€บ faq.asp
ASRock > FAQ
Dr. Debug is used to provide codes that represent different errors that your system has encountered. Please see the diagram below for reading the Dr.
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ManualsLib
manualslib.com โ€บ brands โ€บ asrock manuals โ€บ asrock motherboard manuals โ€บ asrock z97 extreme4 manuals โ€บ asrock z97 extreme4 user manual
Dr. Debug - ASROCK Z97 Extreme4 User Manual [Page 33] | ManualsLib
May 30, 2014 - Debug codes. ... Problem related to memory, VGA card or other devices. Please clear CMOS, re-install the memory and VGA card, ... Problem related to memory. Please re-install the CPU and ... The Memory could not be detected. Please re-install the ยท memory and CPU. If the problem still exists, please install ... Chipset initialization error.
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Level1Techs
forum.level1techs.com โ€บ hardware hub โ€บ motherboards
List of Dr Debug BIOS Codes - Motherboards - Level1Techs Forums
March 28, 2017 - Recently I was busy troubleshooting an issue with my ASRock mainboard and Ryzen and I needed to lookup some of the Mainboard debug display error codes. As It turns out there arenโ€™t really any official manuals I could find for this. So here are my debug codes that I could find and what they mean.
Find elsewhere
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Tom's Hardware Forum
forums.tomshardware.com โ€บ home โ€บ motherboards
ASRock z97 Extreme4 Error Code 99 | Tom's Hardware Forum
May 14, 2015 - I recently just build my first computer and can boot everything up without the GPU installed, but as soon as I try to install it I will always give me a 99 error code, which should mean that there is something wrong with the PCI-e slot. I have tried multiple times to reset the GPU and make sure it's locked into place and even tried moving to different slots. The GPU evens powers up when I plug it in. My question is whether the problem is the motherboard or GPU which is a MSI GTX 970 4G card. ... My ASRock motherboard's BIOS requires that you change the location of the graphics adapter from "on board" to "PCI Express" after installing a PCI Express graphics card.
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ASRock Forums
forum.asrock.com โ€บ forum_posts.asp
ASRock Z97 Extreme4 issue - ASRock Forums
Hey guys,I believe I have a bad mobo on my hands. I figured I would ask you guys to make sure it's...
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Asrock
download.asrock.com โ€บ Manual โ€บ Z87 Extreme4.pdf pdf
User Manual
We cannot provide a description for this page right now
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ASRock Forums
forum.asrock.com โ€บ forum_posts.asp
Z77 Extreme4 Debug 4f - ASRock Forums - Page 1
March 29, 2018 - Today I was updating the BIOS 2.90m and it took a lot, more than 20 minutes and then the Restart stopped...
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Linus Tech Tips
linustechtips.com โ€บ computer hardware โ€บ cpus, motherboards, and memory
Asrock Extreme 4 error code "99" - CPUs, Motherboards, and Memory - Linus Tech Tips
February 16, 2016 - Hi guys! I booted up my pc and it got stuck at the logo and i got the error code b4 and that meant that there was something wrong with the USB connections so i unplugged all my USB devices and now it gets stuck at the logo but gives me the error code 99.. i can't find it anywhere online, please h...
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Tom's Hardware Forum
forums.tomshardware.com โ€บ home โ€บ motherboards
Asrock extreme 4 error code 99 | Tom's Hardware Forum
February 11, 2017 - I have just finished my first PC but when i try to boot the debugger cycles through multiple codes but then stops on code 99 which means there is a problem with the pci slot or gpu but my Gpu is getting the power needed and i have tried booting with out the gpu and with only one stick of ram...
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ASRock Forums
forum.asrock.com โ€บ forum_posts.asp
ASRock Z77 Extreme4 LGA 1155 A2 error - ASRock Forums
June 24, 2017 - I have aASRock Z77 Extreme4LGA1155, i was working fine untill 3days ego. Than suddenly there was no...
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ASRock Forums
forum.asrock.com โ€บ forum_posts.asp
Z97 Extreme4 not booting - ASRock Forums
This PC has ran with no issues since I built it 2 years ago. Last weekend I moved my case and I believe...
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ASRock Forums
forum.asrock.com โ€บ forum_posts.asp
Z170 extreme4 dr.debug 04 - ASRock Forums - Page 1
August 9, 2016 - What is code 04 actually means. I keep getting that code when shutting down and restarting the computer.But...