Question Pc won't boot properly after CPU upgrade.

[JakobH]

Hiya so I've recently just upgraded from a g4560 to a i5 6600k (mobo supports both 6th and 7th gen) and my pc won't boot past the bios splash screen. I attempted reverting to my old CPU to see if it would boot correctly however I keep encountering the same issue no matter what I do. However I did briefly manage to successfully get into the bios at one point but now my pc is also failing to detect my keyboard and mouse and I really have no idea what to do and I'm shit scared about it😂😭.

 

[winks42]

Make sure you have the bios updated to the latest one. Also clear CMOS after taking the cpu out.

 

[JakobH]

Make sure you have the bios updated to the latest one. Also clear CMOS after taking the cpu out.

Just in reference to the bios update how am I meant to do that when my mouse and keyboard are no longer responsive?

 

[ove_taksdal]

what motherboard are you using, and have you inspected it for a bent pin... ?
Recommend always dismounting the motherboard and assemble ram, cpu and cooler outside the case.

 

[JakobH]

what motherboard are you using, and have you inspected it for a bent pin... ?
Recommend always dismounting the motherboard and assemble ram, cpu and cooler outside the case.

I built this pc a couple years again and only have an MSI B250M PRO VD. Whenever I do swap the processors I do have a screen flash telling me to enter the bios as CPU or memory has been changed. However, as the keyboard and mouse are no longer responsive I'm unable to press F1 to enter the bios when I have that short screen flash up.

 

[SkyNetRising]

Reset BIOS settings with onboard jumper on motherboard. Consult user manual, to find location of the jumper.
Or you can try using PS/2 style keyboard.

 

[JakobH]

Reset BIOS settings with onboard jumper on motherboard. Consult user manual, to find location of the jumper.
Or you can try using PS/2 style keyboard.

I've reset cmos and now all my peripherals are functional. My pc has detected the new CPU (i5 6600k) I'd just like to ask since I've reached the bios what should I do next to ensure I boot to windows?

 

[JakobH]

I've reset cmos and now all my peripherals are functional. My pc has detected the new CPU (i5 6600k) I'd just like to ask since I've reached the bios what should I do next to ensure I boot to windows?

In reference to this I attempted to boot again and I was once again stuck on the bios splash screen. I've reset cmos again and I'm back in the bios menu.

 

[SkyNetRising]

Restore settings related to boot.
Those are:

sata controller mode (AHCI,IDE,RAID) and​

boot mode (UEFI, legacy/CSM).​

 

[JakobH]

Restore settings related to boot.
Those are:

sata controller mode (AHCI,IDE,RAID) and​

boot mode (UEFI, legacy/CSM).​

Upon cmos reset my bootmode is set to Legacy+UEFI. Are you suggesting I should change the bootmode to EUFI? As that's the only other bootmode I have available.
Also in regards to sata controller mode where do I access that in the bios?

 

[JakobH]

Upon cmos reset my bootmode is set to Legacy+UEFI. Are you suggesting I should change the bootmode to EUFI? As that's the only other bootmode I have available.
Also in regards to sata controller mode where do I access that in the bios?

Ive located the sata configuration and the only mode available is AHCI

 

[SgtScream]

Try restoring factory defaults in the bios.

 

[JakobH]

Try restoring factory defaults in the bios.

Tried this and again. No luck.

 

[SgtScream]

What is your boot priority? Make sure your boot drive is selected.

 

[SkyNetRising]

Are you suggesting I should change the bootmode to UEFI?

You have to restore those settings to same values, that were before BIOS reset. If you don't remember the settings, then you'll have to try all possible combinations.

Wrong settings will not work. Or you can just reinstall windows.

 

[SgtScream]

Try this:

Windows won't boot after resetting the CMOS battery

So, I was trying to get into my BIOS, but I had forgotten the password. To remove the password I simply took out the CMOS battery, removed power from the motherboard, and waited for a few minutes before returning the battery and power. This worked for removing the password and I can get to my...

forums.tomshardware.com

 

[JakobH]

Well I've managed to fix it and oh my is it the stupidest thing.
Turns out it's a harddrive issue 😂😂😭 I booted on a different harddrive with windows on that I had and it worked absolutely fine straight to windows....