Question GPUs not working after CPU upgrade?

[DBrunt]

Hello,

I am have a lot of trouble right now and don't really know what I'm doing, any help would be appreciated!

So I was trying to upgrade my CPU and GPU, to a RX 5700 and i7-6800K (both second-hand). The first mistake I made was accidentally buying the same CPU I already had (i5-6500), which probably is a good indication of how well I understand what i'm doing.

I started by replacing the CPU (to the same model i had before, unknowingly) and GPU, and received no output to the TV from the card, however the fan on the card was spinning. I plugged into the motherboard instead and could see that the gpu was not showing up in device manager.

I tried a number of steps I saw online, including:

• taking the gpu out and putting back in again to check it is seated properly
• Removing the old graphics card drivers with DDU (I had previously installed some non-AMD drivers to try and get a game to run on the old card)
• Updating the BIOS
• Changing the PCIE connection settings in the bios to "gen 2" and "gen 3"
• Switching to using 2 power cables for the gpu (instead of one daisy chained as i had previously)

After all this i concluded the gpu must not be working, so I put my original card back in and ... same issue, the old card will now not output to the screen, or show up in device manager. I put the original CPU back in as well (same model as before, which I realised at this stage...) and ... same issue again. I set BIOS back to default settings, and still no fix.

So my question is... have I somehow broken my motherboard in replacing these parts, and should I refrain from ever trying to assemble a computer again? Or is there some solution to this?

Setup (before upgrade):
CPU: i5-6500
GPU: R9 390
Motherboard: AsRock B150M-HDV
PSU: EVGA 550 G2

 

[MrN1ce9uy]

i7-6800K is a completely different socket CPU and is not compatible with a B150 motherboard. There is no such thing as an i5-5700. Perhaps you meant i5-7500? You should be looking for an i7-6700K. They are reasonably priced and is the second best i7 you can install in your B150 motherboard behind an i7-7700K.

You may have bent the pins on your motherboard in trying to install the LGA2011 CPU in your LGA1151 motherboard. You can inspect the motherboard pins. Look at it from different angles, any bent pins may stand out. You can attempt to bend them back into shape so that they all may make contact. There is no guarantee.

 

[DBrunt]

i7-6800K is a completely different socket CPU and is not compatible with a B150 motherboard. There is no such thing as an i5-5700. Perhaps you meant i5-7500? You should be looking for an i7-6700K. They are reasonably priced and is the second best i7 you can install in your B150 motherboard behind an i7-7700K.

You may have bent the pins on your motherboard in trying to install the LGA2011 CPU in your LGA1151 motherboard. You can inspect the motherboard pins. Look at it from different angles, any bent pins may stand out. You can attempt to bend them back into shape so that they all may make contact. There is no guarantee.

thanks, i meant i5-6500, was getting it mixed up with the gpu...

to be clear i never actually got the i7-6800k, if i need a new motherboard for that and there's an issue with my current one sounds like I should probably get a new motherboard anyway!

are the CPU pins likely to be bent if the PC is booting fine on integrated graphics? or could there be an issue with GPU pins?

 

[MrN1ce9uy]

thanks, i meant i5-6500, was getting it mixed up with the gpu...

to be clear i never actually got the i7-6800k, if i need a new motherboard for that and there's an issue with my current one sounds like I should probably get a new motherboard anyway!

are the CPU pins likely to be bent if the PC is booting fine on integrated graphics? or could there be an issue with GPU pins?

Okay, no there shouldn't be any GPU pins. Your motherboard should be fine. I suppose I misread your original post. Not sure what's going on.