[SOLVED] CPU Upgrade Gone Wrong?

[Jkt97401]

Hello all, at my wits end here.

I just attempted to upgrade my CPU and now my PC won't even boot to BIOS.

Here are my specs:

Mobo - MSI B450 Tomahawk
CPU - AMD Ryzen 5 2600 (Trying to upgrade to Ryzen 7 3700x)
RAM - 32GB Corsair Vengeance RGB PRO 3200 MHZ
GPU - GIGABYTE Radeon RX 5600 XT


I did update my BIOS to the latest version, and I even tried different versions with no luck.

I reseated all components - twice

I also put the ryzen 5 2600 back in and cleared the BIOS settings.

I also noticed that one of my error LED lights is on, it's the DRAM error light. This light does not turn on when the 2600 is in but only with the 3700x.

I tried a different set of RAM, even just one stick. I'm so flustered! If anybody has any ideas to try, I would be very appreciative!!

Thank you for reading this

 

[Mr.Spock]

probably a corrupt flash. download bios 7C02v19 (or even 7C02v18 ) and copy it to a USB flash drive, fortunately your motherboard supports flashing w/o CPU/GPU and RAM

https://www.msi.com/Motherboard/B450-TOMAHAWK/Overview

 

[MeanMachine41]

Post will not continue till the error with your RAM is rectified

Ryzen 5 2600 supports 2933Mhz
Ryzen 7 3700x supports up to 3200Mhz

Your Motherboard supports 2667/ 2800/ 2933/ 3000/ 3066/ 3200/ 3466/ 4000/ 4133 MHz (by A-XMP OC MODE)
3200Mhz are OC RAM so see if your Bios will enable A-XMP for easy Overclocking or you may have to manually enter your SPD values to get them to work at their rated frequency. SPD can be obtained from Bios or CPUz.

If you are unable to get them to work then list the SKU or P/N of your RAM kit and we will see what can be done.

You should also run a test on your RAM using Memtest86 and booting from a USB. Run 4 passes and if any errors then RMA the full kit.

 

[drea.drechsler]

Hello all, at my wits end here.

I just attempted to upgrade my CPU and now my PC won't even boot to BIOS.

Here are my specs:

Mobo - MSI B450 Tomahawk
CPU - AMD Ryzen 5 2600 (Trying to upgrade to Ryzen 7 3700x)
RAM - 32GB Corsair Vengeance RGB PRO 3200 MHZ
GPU - GIGABYTE Radeon RX 5600 XT


I did update my BIOS to the latest version, and I even tried different versions with no luck.

I reseated all components - twice

I also put the ryzen 5 2600 back in and cleared the BIOS settings.

I also noticed that one of my error LED lights is on, it's the DRAM error light. This light does not turn on when the 2600 is in but only with the 3700x.

I tried a different set of RAM, even just one stick. I'm so flustered! If anybody has any ideas to try, I would be very appreciative!!

Thank you for reading this

Did you reset CMOS with the new CPU in place?

Turn off, disconnect power, remove coin cell battery and short pins for 30 sec's to a minute. Then reassemble. The system will probably cycle a few times while training memory.

 

[Jkt97401]

probably a corrupt flash. download bios 7C02v19 (or even 7C02v18 ) and copy it to a USB flash drive, fortunately your motherboard supports flashing w/o CPU/GPU and RAM

https://www.msi.com/Motherboard/B450-TOMAHAWK/Overview

I did re-flash the BIOS a few times, once when I put the 2600 back in and again with the 3700x in using the flash bios button

 

[DRagor]

Does system work when you put 2600 back?

 

[Jkt97401]

Does system work when you put 2600 back?

Yes, I can boot fully into Windows and I can access the BIOS only with the 2600 installed

 

[DRagor]

Yes, I can boot fully into Windows and I can access the BIOS only with the 2600 installed

So, to sum things up: your old CPU still works fine, and new CPU will not start no matter what you do. In my book, this means 3700 is DOA (probably memory controller is dead).

 

[Jkt97401]

Did you reset CMOS with the new CPU in place?

Turn off, disconnect power, remove coin cell battery and short pins for 30 sec's to a minute. Then reassemble. The system will probably cycle a few times while training memory.

Thank you for the tip! I tried this just now and I also booted into the BIOS (with the 2600 inserted) and manually reset the BIOS and neither option helped :-(

 

[Jkt97401]

Post will not continue till the error with your RAM is rectified

Ryzen 5 2600 supports 2933Mhz
Ryzen 7 3700x supports up to 3200Mhz

Your Motherboard supports 2667/ 2800/ 2933/ 3000/ 3066/ 3200/ 3466/ 4000/ 4133 MHz (by A-XMP OC MODE)
3200Mhz are OC RAM so see if your Bios will enable A-XMP for easy Overclocking or you may have to manually enter your SPD values to get them to work at their rated frequency. SPD can be obtained from Bios or CPUz.

If you are unable to get them to work then list the SKU or P/N of your RAM kit and we will see what can be done.

You should also run a test on your RAM using Memtest86 and booting from a USB. Run 4 passes and if any errors then RMA the full kit.

Thank you for the recommendation!

I put the 2600 back in so I could access the BIOS, and then set it to an XMP profile for 3200 MHZ RAM and nothing changed once I put the 3700x back in.

I also have a set of Patriot Viper 4 RAM that I have access to and they won't work either. I just left for work for the day but when I get home tonight I'll check and share the SKU of my RAM kit(s) to see if that will help

 

[Jkt97401]

So, to sum things up: your old CPU still works fine, and new CPU will not start no matter what you do. In my book, this means 3700 is DOA (probably memory controller is dead).

Darn! I was hoping this wasn't the case but its starting to seem more and more likely. I picked it up from Best Buy so I should be able to swap it out for a new one

 

[ohio_buckeye]

They should have a 30 day return policy I think. I do know on my asrock board, I had to do a few updates in sequence before I could upgrade to my 3600.

 

[Jkt97401]

They should have a 30 day return policy I think. I do know on my asrock board, I had to do a few updates in sequence before I could upgrade to my 3600.

Thank you for this... I'm going to try to do BIOS updates in sequence

Post will not continue till the error with your RAM is rectified

Ryzen 5 2600 supports 2933Mhz
Ryzen 7 3700x supports up to 3200Mhz

Your Motherboard supports 2667/ 2800/ 2933/ 3000/ 3066/ 3200/ 3466/ 4000/ 4133 MHz (by A-XMP OC MODE)
3200Mhz are OC RAM so see if your Bios will enable A-XMP for easy Overclocking or you may have to manually enter your SPD values to get them to work at their rated frequency. SPD can be obtained from Bios or CPUz.

If you are unable to get them to work then list the SKU or P/N of your RAM kit and we will see what can be done.

You should also run a test on your RAM using Memtest86 and booting from a USB. Run 4 passes and if any errors then RMA the full kit.

So an update here:

I was able to return and exchange the 3700X for a new one to rule out a bad chip. It's still giving me the DRAM error light. I found the SKU for my RAM kit and it is:

CMW16GX4M2C3200C16 ver 5.32

I checked on MSI's website for compatibility under the Matisse CPU subsection and it is listed as compatible.
Do you or anyone else have any further recommendations? I know the MSI B450 Tomahawk is listed as compatible with the 3700X but I am at a loss here

 

[MeanMachine41]

Thank you for this... I'm going to try to do BIOS updates in sequence


So an update here:

I was able to return and exchange the 3700X for a new one to rule out a bad chip. It's still giving me the DRAM error light. I found the SKU for my RAM kit and it is:

CMW16GX4M2C3200C16 ver 5.32

I checked on MSI's website for compatibility under the Matisse CPU subsection and it is listed as compatible.
Do you or anyone else have any further recommendations? I know the MSI B450 Tomahawk is listed as compatible with the 3700X but I am at a loss here

CMW16GX4M2C3200C16 (ver 5.32) should work however you may have to manually enter the Timings and voltage in Bios as there may not be a D.O.C.P profile for your RAM at 3200Mhz.
You may well have success once you update your Bios.

 

[Jkt97401]

They should have a 30 day return policy I think. I do know on my asrock board, I had to do a few updates in sequence before I could upgrade to my 3600.

THANK YOU SO MUCH!

I started over at BIOS v1 and slowly, methodically updated my BIOS to the version I needed and lo and behold, it booted!

I really appreciate your response and everyone else who helped guide me through this. This was so frustrating, and you guys really helped take some of the anxiety out with your tips and recommendations.

Thank you again!

 

[ohio_buckeye]

Good deal. I had to do that on my asrock b350 pro 4. I think it had to do that they didn’t have enough memory space in the bios storage chips to support all the cpus at once, you had to do step by step updates until you got to where it would support the cpu. The catch was on my asrock is that you may not be able to run your old cpu after the update. Probably due to memory size and how the new cpus tend to boost and use more power.