Changed the RAM speed, computer now won't work. |
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texasbeefnoodles
Newbie Joined: 23 Feb 2021 Status: Offline Points: 4 |
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Posted: 23 Feb 2021 at 9:17pm |
The computer was working properly. Just discovered that I had to change the RAM speed manually in the BIOS to get it to run at its marketed speed. So that's what I did. I changed the speed to 3600. Now the PC won't POST, the monitor is blank.
After reading online I gathered the solution was to clear the CMOS/reset BIOS. I tried numerous techniques, the last being unplugged the PSU, took the CMOS battery out, and left it out overnight. Now POST get stuck at "boot" (observing motherboard's POST status checker), then when I restart it, the monitor will show the motherboard logo and the text below saying press F2 or DEL to go to the BIOS, then the computer will immediately restart and repeat the same thing. Pressing F2 or DEL doesn't do anything. My setup CPU: AMD Ryzen7 3700x Mobo: ASROCK B550m Pro4 RAM: Corsair Vengeance RGB Pro 32GB(2x16GB) CMW32GX4M2D3600C18 Graphics: GTX960 OS: win10 |
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muziqaz
Groupie Joined: 04 Jan 2021 Location: London Status: Offline Points: 590 |
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After resetting the BIOS, remove everything except one stick of RAM placed in second slot from the CPU, CPU itself and GPU.
Make sure your keyboard and mouse is plugged into black USB slots, or if you have PS2 keyboard plug it into PS2 port. Start your PC and when Asrock logo shows up, start punching either Del or F2. Hopefully that will get you into BIOS. Once in BIOS, when setting RAM speed, make sure that RAM voltages (VRAM) are set to at least 1.35v. Even with that set up there is no guarantee you will achieve stable operations with those speeds. Some motherboards run better if you use XMP profile, which sets everything up for you automatically, but that one is like lottery |
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folding@home
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MadScientist
Groupie Joined: 17 Aug 2020 Location: TN Status: Offline Points: 483 |
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Good advice from muziqaz.
Good luck with getting your Corsair ram to run at 3600Mhz. I have a B550 Phantom Gaming 4 MB with 4 x 8GB sticks of Corsair Vengeance 3600Mhz ram. I have not been successful at setting the ram's XMP profile. It defaults to 2166Mhz. Best I can do is run it at 3200Mhz. Like yours sometimes it would get stuck in a boot loop and I would have to use only one stick of ram and clear CMOS to get back into the bios. I have tried flashing it to different bios but still stuck at 3200Mhz. If interested you can read what I have tried in these threads: http://forum.asrock.com/forum_posts.asp?TID=14261&KW=&title=ram-your-using-on-phantom-gaming-4-board http://forum.asrock.com/forum_posts.asp?TID=16936&KW=&title=b550-phantom-gaming-4-a-c-ram-issue |
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texasbeefnoodles
Newbie Joined: 23 Feb 2021 Status: Offline Points: 4 |
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Thank you guys so much for the advice. Unfortunately, it didn't work for me. I sent in a tech support ticket and they gave the same advice and also recommended taking off all components. It still didn't work. So either the motherboard is defective or the instructions didn't really reset the CMOS or the motherboard's defective in the CMOS reset department.
I've sent in a replacement request. |
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StefaanC
Newbie Joined: 13 Feb 2021 Location: Belgium Status: Offline Points: 125 |
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how much ram is in it, cause i had to lower the speed due to 128gb in a x399 taichi , read the manual related to ram configuration oh and usual if the system does not boot, setting too high , latest bios?
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muziqaz
Groupie Joined: 04 Jan 2021 Location: London Status: Offline Points: 590 |
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2x16GB
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folding@home
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