Final Update:
This issue was resolved after getting a new Crosshair Hero VI board. We've been using it for nearly a month and there have been no issues so far.
So, to clarify: Q-Code 8 does NOT necessarily mean that there is a CPU issue, as we swapped identical CPUs and the error still occurred. It also does not necessarily mean that it is a CPU cooler over-tightening issue, as we played around with it, and even just gently placed it on top of the CPU without screws. It CAN be a motherboard issue, as was the case with us.
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Update: I thought that we fixed it, but the 08 code came on again this morning. Shut down/cycled power several times yesterday and it worked flawlessly, even playing Overwatch, etc. We took the motherboard and all components out, unplugged/repulugged everything, dusted the CPU and socket (even found a hair), reseated the CPU and made sure that it was sitting properly.
This is looking like a motherboard issue, not a CPU issue. Like I said earlier, we swapped CPUs and coolers between System 1 and System 2 and System 2 is still showing Q-Code 08.
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AMD 1800X
ASUS Crosshair Hero VI
G. SKill TridentZ 3200 @ 2933, 14 CAS
EVGA G3 750W
Noctua NH-U14S
Windows 10 Home 64
We have two identical Ryzen 1800X systems (except for the sound card). System 2 posted Q-Code 8 today after waking up. After waiting for a few minutes of not posting, seeing Q-Code 8, and the CPU fan briefly starting and then stopping, we took System 2 apart and swapped both systems' CPUs and coolers (identical) to see if CPU 2 was dead. CPU 2 booted up fine and works fine System 1; System 2 is still having problems, even with CPU 1 installed inside of it.
It takes about 30 minutes for Q-Code 8 to finish and for the system to start cycling through other codes and actually begin booting. Before swapping CPUs and unplugging/replugging everything, the CPU fan would start to spin briefly and then stop, with Q-Code 8 lit up the whole time. For whatever reason, it spins the whole time now.
What we have tried:
1. Swapping CPUs and coolers
2. Unplugging everything, taking the motherboard out, and replugging it all back
3. Trying different RAM in different slots
4. Booting without the graphics card, sound card, and RAM
5. Checking for anything that may be short circuiting the motherboard
6. Updating NVIDIA drivers and AMD chipset drivers
7. Flashing different BIOS (0702, 0902, 1002)
8. Unplugging all peripherals - monitor, keyboard, mouse, audio, etc.
9. Taking the battery out for 15 minutes
10. Booting with all fans and front panel connectors unplugged
EDIT: 11. Clearing CMOS
Once we're in Windows in System 2, it seems to work fine, although one time the computer simply froze, the monitor went blank (could not find a signal), although Q-Code 30 did not change and all fans were spinning.
This happens from cold boot, wakeup, and reset when within BIOS. Regular reset seems to work fine.
What could be causing this to happen?
EDIT: It also seems to happen indefinitely (past 45 minutes, but I don't check past that). Sometimes it boots faster, like after only a few minutes of Q-Code 8. I should also note that I cannot get into BIOS during Q-Code 8 and my keyboard and mouse are not on. It is just a blank screen.
EDIT 2: Everything is at stock (auto, etc.) except for DRAM voltage (1.35) and RAM timings and speed. The CPU is not overclocked. This also happens when the CMOS is cleared and everything is at default.
This issue was resolved after getting a new Crosshair Hero VI board. We've been using it for nearly a month and there have been no issues so far.
So, to clarify: Q-Code 8 does NOT necessarily mean that there is a CPU issue, as we swapped identical CPUs and the error still occurred. It also does not necessarily mean that it is a CPU cooler over-tightening issue, as we played around with it, and even just gently placed it on top of the CPU without screws. It CAN be a motherboard issue, as was the case with us.
---
Update: I thought that we fixed it, but the 08 code came on again this morning. Shut down/cycled power several times yesterday and it worked flawlessly, even playing Overwatch, etc. We took the motherboard and all components out, unplugged/repulugged everything, dusted the CPU and socket (even found a hair), reseated the CPU and made sure that it was sitting properly.
This is looking like a motherboard issue, not a CPU issue. Like I said earlier, we swapped CPUs and coolers between System 1 and System 2 and System 2 is still showing Q-Code 08.
---
AMD 1800X
ASUS Crosshair Hero VI
G. SKill TridentZ 3200 @ 2933, 14 CAS
EVGA G3 750W
Noctua NH-U14S
Windows 10 Home 64
We have two identical Ryzen 1800X systems (except for the sound card). System 2 posted Q-Code 8 today after waking up. After waiting for a few minutes of not posting, seeing Q-Code 8, and the CPU fan briefly starting and then stopping, we took System 2 apart and swapped both systems' CPUs and coolers (identical) to see if CPU 2 was dead. CPU 2 booted up fine and works fine System 1; System 2 is still having problems, even with CPU 1 installed inside of it.
It takes about 30 minutes for Q-Code 8 to finish and for the system to start cycling through other codes and actually begin booting. Before swapping CPUs and unplugging/replugging everything, the CPU fan would start to spin briefly and then stop, with Q-Code 8 lit up the whole time. For whatever reason, it spins the whole time now.
What we have tried:
1. Swapping CPUs and coolers
2. Unplugging everything, taking the motherboard out, and replugging it all back
3. Trying different RAM in different slots
4. Booting without the graphics card, sound card, and RAM
5. Checking for anything that may be short circuiting the motherboard
6. Updating NVIDIA drivers and AMD chipset drivers
7. Flashing different BIOS (0702, 0902, 1002)
8. Unplugging all peripherals - monitor, keyboard, mouse, audio, etc.
9. Taking the battery out for 15 minutes
10. Booting with all fans and front panel connectors unplugged
EDIT: 11. Clearing CMOS
Once we're in Windows in System 2, it seems to work fine, although one time the computer simply froze, the monitor went blank (could not find a signal), although Q-Code 30 did not change and all fans were spinning.
This happens from cold boot, wakeup, and reset when within BIOS. Regular reset seems to work fine.
What could be causing this to happen?
EDIT: It also seems to happen indefinitely (past 45 minutes, but I don't check past that). Sometimes it boots faster, like after only a few minutes of Q-Code 8. I should also note that I cannot get into BIOS during Q-Code 8 and my keyboard and mouse are not on. It is just a blank screen.
EDIT 2: Everything is at stock (auto, etc.) except for DRAM voltage (1.35) and RAM timings and speed. The CPU is not overclocked. This also happens when the CMOS is cleared and everything is at default.
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