F5F Stay Refreshed Hardware Desktop Pc fails to start (green Q-LED on ASUS motherboard) following RAM reinstallation

Pc fails to start (green Q-LED on ASUS motherboard) following RAM reinstallation

Pc fails to start (green Q-LED on ASUS motherboard) following RAM reinstallation

R
Rayack
Senior Member
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11-25-2025, 02:27 AM
#1
Pc components: i5 12400f, B660-PLUS D4 ASUS PRIME, 2x8gb DDR4 3600mhz Crucial, RX 6600xt, 2TB Samsung 990 pro. Issue: Attempted to merge two 8GB RAM sticks (3200mhz) for a total of 32GB, but it failed due to DRAM error. Ran Corsair RAM alone successfully and they functioned. Reinstalled Crucial and the BIOS reset lights came on, but the monitor displayed black and prevented BIOS access. Restarted with a new CMOS battery, unplugged the PC and held the power button for 30 seconds. No issue with 16GB being sufficient; I just need the system to boot. Any advice? How can I get the monitor signal without accessing BIOS?
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R
Rayack
11-25-2025, 02:27 AM #1

Pc components: i5 12400f, B660-PLUS D4 ASUS PRIME, 2x8gb DDR4 3600mhz Crucial, RX 6600xt, 2TB Samsung 990 pro. Issue: Attempted to merge two 8GB RAM sticks (3200mhz) for a total of 32GB, but it failed due to DRAM error. Ran Corsair RAM alone successfully and they functioned. Reinstalled Crucial and the BIOS reset lights came on, but the monitor displayed black and prevented BIOS access. Restarted with a new CMOS battery, unplugged the PC and held the power button for 30 seconds. No issue with 16GB being sufficient; I just need the system to boot. Any advice? How can I get the monitor signal without accessing BIOS?

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jamesydog
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11-25-2025, 02:27 AM
#2
Your post is not clear, You've got two sets of 2x8gb RAM. Before, the Corsair set worked and now it doesn't ? You never tried only the Crucial ? There's a jumper to reset the bios, did you use it ? Edited February 7 by leclod
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jamesydog
11-25-2025, 02:27 AM #2

Your post is not clear, You've got two sets of 2x8gb RAM. Before, the Corsair set worked and now it doesn't ? You never tried only the Crucial ? There's a jumper to reset the bios, did you use it ? Edited February 7 by leclod

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Dragonxd07
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11-25-2025, 02:27 AM
#3
I understand if the explanation isn't clear. I'll try to simplify it:
I have two pairs of RAM sticks—one Crucial 2x8GB at 3600MHz and another Corsair Vegance 2x8GB at 3200MHz. After installing the Crucial sticks, I tested them separately and together. Together they caused a DRAM error (yellow light). When I tried them one by one, I got a boot error (green light). I think the motherboard has a CMOS pin to reset the BIOS, so I plan to check that next.
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D
Dragonxd07
11-25-2025, 02:27 AM #3

I understand if the explanation isn't clear. I'll try to simplify it:
I have two pairs of RAM sticks—one Crucial 2x8GB at 3600MHz and another Corsair Vegance 2x8GB at 3200MHz. After installing the Crucial sticks, I tested them separately and together. Together they caused a DRAM error (yellow light). When I tried them one by one, I got a boot error (green light). I think the motherboard has a CMOS pin to reset the BIOS, so I plan to check that next.

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