[SOLVED] Monitor "No signal detected" after CPU upgrade

[Saltybutter]

Hi, I upgraded my cpu from amd 1600x to 3800x and after the switch my monitor won't turn on keeps saying "No signal detected". Going back to old CPU now also shows the message. Also i updated BIOS few days before i got the new CPU

Things i have tried so far:

Cleaning ram sticks
CMOS reset
getting the battery out
Trying 1 ram stick at a time all 4 slots
different port 1050ti and 2060S GPU's
Trying dvi on 1050ti
Removing hdd
I'm running out of ideas what to do, appreciate the help!

MB: Asus PRIME B350-PLUS ATX AM4
PSU: EVGA 500 W 80+ Bronze Certified ATX
RAM: Corsair Vengeance LPX 8 GB (2 x 4 GB) DDR4-3000 CL16 and 1 x 8 GB

 

[Darkbreeze]

The system ran AFTER you did the BIOS update, yes?

First, try removing the 8GB memory module entirely. Leave ONLY the two 4GB modules installed AND make SURE they are installed in the second and fourth slots over, to the right of the CPU socket. The A2 and B2 slots.

Next, do the following, WITH the NEW CPU installed. And before doing so, make sure that all connections to the motherboard are seated and secure.


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 five minutes. In some cases it may be necessary to remove the graphics card to access the CMOS battery.

During that five minutes, press the power button on the case, continuously, for 30 seconds. 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.

 

[Saltybutter]

Yes the system was working fine after BIOS update for days till i changed the cpu. I'm off to bed now i'll do the steps after work tomorrow. Thanks!

 

[Saltybutter]

The system ran AFTER you did the BIOS update, yes?

First, try removing the 8GB memory module entirely. Leave ONLY the two 4GB modules installed AND make SURE they are installed in the second and fourth slots over, to the right of the CPU socket. The A2 and B2 slots.

Next, do the following, WITH the NEW CPU installed. And before doing so, make sure that all connections to the motherboard are seated and secure.


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 five minutes. In some cases it may be necessary to remove the graphics card to access the CMOS battery.

During that five minutes, press the power button on the case, continuously, for 30 seconds. 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.

So i done everything as you said, same thing keeps saying no signal

 

[Darkbreeze]

Ok, so I'd look VERY closely at both CPUs to make sure there are no bent pins.

If there are not, then I'd put the old CPU back in, and try the procedure above again.

Just out of curiosity, you DID either unplug or flip the power switch on the PSU to the off position before changing out the CPU, right?

 

[Saltybutter]

yup, i unplugged from psu and switched off. Tried with old CPU same thing, no bent pins. At this point i'm losing hope, thinking of getting new MB ASUS B450 / Ram / PSU and re-building PC.

 

[Darkbreeze]

Before I did that, I'd double and triple check everything listed here, just to make sure you're not overlooking something simple.

"No POST", "system won't boot", and "no video output" troubleshooting checklist

"No POST", "system won't boot", and "no video output" troubleshooting checklist This checklist is a compilation of troubleshooting ideas from many forum members. It's very important to actually perform every step in the checklist if you want to effectively troubleshoot your problem. 1.Did you...

forums.tomshardware.com

Also, I'd make SURE you are not connecting your display cable to the motherboard video output, and are plugging your HDMI or DP cable into the video card output, otherwise you're not going to get any signal ever.

What is the EXACT model of that EVGA power supply, and are you plugging in the auxiliary power to the graphics card?

 

[Saltybutter]

Before I did that, I'd double and triple check everything listed here, just to make sure you're not overlooking something simple.

"No POST", "system won't boot", and "no video output" troubleshooting checklist

"No POST", "system won't boot", and "no video output" troubleshooting checklist This checklist is a compilation of troubleshooting ideas from many forum members. It's very important to actually perform every step in the checklist if you want to effectively troubleshoot your problem. 1.Did you...

forums.tomshardware.com

Also, I'd make SURE you are not connecting your display cable to the motherboard video output, and are plugging your HDMI or DP cable into the video card output, otherwise you're not going to get any signal ever.

What is the EXACT model of that EVGA power supply, and are you plugging in the auxiliary power to the graphics card?

Yea im plugging dp cable to my gpu. My PSU: EVGA 500 W 80+ Bronze. It's 8 pin

 

[Darkbreeze]

There are MANY "EVGA 500w bronze" power supplies. Which one do you have? Because EVGA 500w bronze is not a model. EVGA B1 is a model. EVGA BQ is a model. EVGA G3 is a model. What SERIES is your power supply from? That will tell us what the model is if you are unable to identify it.

 

[Saltybutter]

There are MANY "EVGA 500w bronze" power supplies. Which one do you have? Because EVGA 500w bronze is not a model. EVGA B1 is a model. EVGA BQ is a model. EVGA G3 is a model. What SERIES is your power supply from? That will tell us what the model is if you are unable to identify it.

100-B1-0500-KR

 

[Darkbreeze]

That's a really poor quality unit. How long has it been in service?

 

[Saltybutter]

Over 1.5 year

 

[Darkbreeze]

That's where I'd start.

 

[Saltybutter]

I bought new case, psu, memory and motherboard and will be re-building tomorrow will see how that goes.

 

[Darkbreeze]

Fingers crossed.

 

[Saltybutter]

Fingers crossed.

Okay, so thank god everything is working fine. But here's some funny stuff. Once i assembled new PC and turned it on i literally (mod edit) myself because I'm getting no Signal message on monitor, i checked motherboard orange/red/white LED blinking, so i was like maiby something with PSU? While searching on the internet if i plugged all PSU cables correct i find some forum message saying he wasn't able to enter BIOS without keyboard plugged in. So i was like what the hell, let's just try plugging in the keyboard and yeah of course everything is working. I still get no signal detected message for few seconds before BIOS logo pops up, i never used to have that. So yeah i guess not plugging the keyboard was the issue ? Not sure but i guess it was good time for upgrading psu/motherboard and probably will be selling old parts on ebay just to get some money back. Anyways thanks for staying with me through the process!

 

[Darkbreeze]

For sure man. Glad you got it sorted. In the future you should be aware that most BIOS are by default set to halt on error without keyboard or mouse connected, but I've never heard of one that wouldn't show a display signal because of it. Normally you'll just get the POST screen with a keyboard error. Glad you got it sorted though.