Question is the cpu the problem? or is it something else?

Dec 2, 2023
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Okay, so my boyfriend recently bought a new cpu and wanted to put it in but hasn't done it before, he put everything into pc part picker and it didn't say he had to update the bios or anything so he just went for it, when he took off his heatsink his original cpu did also come out and some pins bent, he straightened them out with a credit card but then his pc wasn't recognizing his mouse or keyboard or anything with the new cpu so he thought oh i must need to update the bios. but when he put his old cpu the same problem was happening. his pc turns on, everything lights up and the fans spin and stuff but his monitor doesn't display anything, and his keyboard and mouse aren't working. is his cpu messed up? or is it anything he can fix. idk much about computers i'm just saying what he told me because i want to help him. thank you :)
 
What CPU? What motherboard?

Is he SURE that he is inserting the CPU properly with the alignment markings correctly lined up on both the CPU and motherboard?
cpu- ryzen 5 2600 motherboard- asrock a320m-hdv r4.0, his new cpu he wanted to change it to is the ryzen 9 5900x. and yes he said he is sure that its lined up correctly.
 
So, you have a problem, potentially.

First of all, that board DOES NOT support the 5900x unless you have BIOS version 7.1, and you have to update to version 7.0 before updating to version 7.1 per the BIOS notes on the product page. However, IF you update the BIOS to version 7.1, ASRock says they do not recommend using any Pinnacle ridge, Raven ridge or Summit ridge CPUs in that board after updating and your Ryzen 2600 IS a Pinnacle ridge CPU.

Do you have any idea what BIOS version this board was running prior to it not working?

Can you post a picture of the installed CPU in the motherboard showing that the alignment marks are correctly lined up, because this is a VERY common mistake that unexperienced users make and if you've at ANY POINT installed the CPU wrong and then locked down the retention mechanism or attempted to start the machine, it is highly likely that the CPU or motherboard are toast.

Additionally, it is a VERY BAD IDEA to run ANY Ryzen 9 processor on that board because it has a VERY poor VRM configuration (Voltage regulator module, you can find information on exactly what that is here: https://blog.logicalincrements.com/2019/02/what-are-how-many-motherboard-vrms-power-phases/ ) as well as it does not have ANY heatsinks on it's VRMs which means even if you got this running it is extremely likely you would experience VRM thermal throttling issues with that CPU installed.

The fact that the original CPU no longer wants to work might indicate that there has been damage to the board, but it might also only indicate that the board tried to reconfigure for the new CPU but was unable due to not having a new enough BIOS version installed and now that it tried, it needs to be hard reset to force it back into the configuration that worked with your original Ryzen 2600. So reinstalling the original CPU and then doing a hard reset would probably be the first thing to try. He will want to do this EXACTLY as I've outlined below. Do not skip steps or take alternate steps and do not think that some other method such as "well, I already tried the jumper" or I took out the battery and then put it back in are the same as doing the entire process.

BIOS Hard Reset procedure

Power off the unit, switch the PSU off and unplug the PSU cord from either the wall or the power supply.

Remove the motherboard CMOS battery for about three to five minutes. In some cases it may be necessary to remove the graphics card to access the CMOS battery.

During that five minutes while the CMOS battery is out of the motherboard, press the power button on the case, continuously, for 15-30 seconds, in order to deplete any residual charge that might be present in the CMOS circuit. After the five minutes is up, reinstall the CMOS battery making sure to insert it with the correct side up just as it came out.

If you had to remove the graphics card you can now reinstall it, but remember to reconnect your power cables if there were any attached to it as well as your display cable.

Now, plug the power supply cable back in, switch the PSU back on and power up the system. It should display the POST screen and the options to enter CMOS/BIOS setup. Enter the bios setup program and reconfigure the boot settings for either the Windows boot manager or for legacy systems, the drive your OS is installed on if necessary.

Save settings and exit. If the system will POST and boot then you can move forward from there including going back into the bios and configuring any other custom settings you may need to configure such as Memory XMP, A-XMP or D.O.C.P profile settings, custom fan profile settings or other specific settings you may have previously had configured that were wiped out by resetting the CMOS.

In some cases it may be necessary when you go into the BIOS after a reset, to load the Optimal default or Default values and then save settings, to actually get the hardware tables to reset in the boot manager.

It is probably also worth mentioning that for anything that might require an attempt to DO a hard reset in the first place, IF the problem is related to a lack of video signal, it is a GOOD IDEA to try a different type of display as many systems will not work properly for some reason with displayport configurations. It is worth trying HDMI if you are having no display or lack of visual ability to enter the BIOS, or no signal messages.

Trying a different monitor as well, if possible, is also a good idea if there is a lack of display. It happens.