Computer randomly decides not to boot

[Friesen1520]

I just built my first computer, albeit with a lot of difficulties. I have to RMA my RAM sticks, then my Motherboard, and then I had a faulty OS loader USB drive. Ultimately, once I worked everything out, my computer would boot and I got to use it for a bit. Once I got a little comfortable with it, I tried overclocking a bit.

My specs:

• Ryzen 5 3600
• Asus ROG B450-f gaming
• Corsair Vengeance RGB Pro 3600MHz
• EVGA 2060 RTX super XC
• Anything else you need to know, ask me

The motherboard I shortsightedly purchased only supports ram speeds up to 3000MHz. I later found out that motherboards will still run faster ram sticks, just at the speed that the motherboard bottlenecks them at. I said, "Oh well, guess I'll bite the bullet here." My computer would turn on with the faster RAM, so I thought that would be fine. Oddly enough, once I wanted to overclock, I noticed that I could set memory speeds up to ridiculous numbers (I think around 5000MHz). I decided to see what would happen if I set the speed to 3600MHz. I set it, save settings, and boot into windows. Boot takes a little longer than normal, but everything seems fine. In task manager, my memory was listed at 2100MHz which I thought was a little weird, but I could kink it out later. Until now, my computer was being weird in that every time I turned it on, it would boot to the American Megatrends screen, and ask to set up into BIOS. I wanted to make it so that I boot straight into windows (with the mash button into BIOS screen in between), so I found that disabling the fast boot can cure this? I go back into bios to turn off this fast boot, and all of a sudden, when I try to boot into windows, my computer now refuses to post. I have turned my computer on and off multiple times, but it wont turn on. My motherboard now is showing a yellow light indicating RAM problem, if that helps. Any info on how to get somewhere to salvage my computer would be greatly appreciated.

[svmlegacy]

8 minutes ago, Friesen1520 said:

<snip>

Take a look in the motherboards manual for instructions to clear the CMOS. When in, make sure to boot up in default settings with XMP off to make sure everything goes well. Tinker from there.

[Friesen1520]

14 minutes ago, svmlegacy said:

Take a look in the motherboards manual for instructions to clear the CMOS. When in, make sure to boot up in default settings with XMP off to make sure everything goes well. Tinker from there.

Thank you so much, I'm back into my computer! Would you happen to know how to make my computer stop booting straight into bios?

[AdvilLobotomite]

The reason it took longer to boot after you increased the RAM speed is that it would try the speed you set, fail to boot a couple of times, then reset the speed to factory default. If you want to increase your RAM speed, I would go up in increments and test stability with a RAM benchmark. Going from 3000 to 3600 is way too large of a jump. If you don't feel like tinkering with it, you can use default settings then turn on XMP.

If you ever have a bad overclock or set something bad in the BIOS, clear your CMOS. It is really strange that your PC boots into BIOS. Check to make sure your boot drive is the primary drive.

[Friesen1520]

1 minute ago, AdvilLobotomite said:

The reason it took longer to boot after you increased the RAM speed is that it would try the speed you set, fail to boot a couple of times, then reset the speed to factory default. If you want to increase your RAM speed, I would go up in increments and test stability with a RAM benchmark. Going from 3000 to 3600 is way too large of a jump. If you don't feel like tinkering with it, you can use default settings then turn on XMP.

If you ever have a bad overclock or set something bad in the BIOS, clear your CMOS. It is really strange that your PC boots into BIOS. Check to make sure your boot drive is the primary drive.

Thank you for the words of advice about my ram, I'll mess arounf with that when I get more time. I originally thought that the reason I wasn't booting into windows was that my M.2 wasn't my primary drive, but I've checked and double checked, but that's the only item in the boot order. Thanks for helping!

[AdvilLobotomite]

10 hours ago, Friesen1520 said:

Thank you for the words of advice about my ram, I'll mess arounf with that when I get more time. I originally thought that the reason I wasn't booting into windows was that my M.2 wasn't my primary drive, but I've checked and double checked, but that's the only item in the boot order. Thanks for helping!

Are you still booting into BIOS?