Question GA-990FXA-UD7 won't turn on after shutdown ?

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Alkilator

Nov 3, 2023
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I received a Gigabyte GA-990FXA-UD7 rev.3 motherboard. I had a processor FX-8350 and DDR3 4 x 4gb RAM. I bought a new Cooler Master V750 Gold V2 PSU and a Gigabyte GTX 1060 Xtreme Edition GPU.

Everything worked fine until yesterday when I shut it down (without switching off at the power strip) and had to start it after a few minutes, and surprise, it didn't want to start. I decided to turn off the power strip for a few seconds and turn on again, after which the system worked and loaded Windows.

I checked the power supply, but it is not from it, which led me to think that it is the motherboard. There are officially three bios versions for this motherboard, one of which is beta. I tried to change them, but nothing improved, even the system started to load more slowly. Windows is on Samsung 850 Evo SSD and at the beginning before I started changing the bios it loaded for about 10 seconds, and then it started to slow down for 1 minute. I don't know what else can be done. Has anyone faced such a problem ?
 
Alkilator said:
I received across this motherboard (Gigabyte GA-990FXA-UD7 rev.3), I had a processor FX-8350 and memory ddr3 4x4gb. I bought a new power supply cooler master V750 Gold V2 and a Gigabyte GTX 1060 xtreme edition. Everything worked fine until yesterday when I stopped (without switch off power strip) it and had to start it after a few minutes, and surprise, didn't want to start. I decided to turn off the power strip for a few seconds and turn on again, after which the system worked and loaded Windows. I checked the power supply, but it is not from it, which led me to think that it is the motherboard. There are officially three bios for this motherboard, one of which is beta. I tried to change them, but nothing improved, even the system started to load more slowly. Windows is on a SSD Samsung 850 evo and at the beginning before I started changing the bios it loaded for about 10 seconds, and then it started to slow down for 1 minute. I don't know what else can be done. Has anyone faced such a problem.
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That's pretty old MB, check and replace CMOS battery first.
 
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You know the drill: unplug everything except the basics, remove the RAM + GPU & clean the contacts, reseat with only 1 stick of RAM, and see how it behaves. If I reach BIOS, I then like using a live Linux Mint USB to boot to for this sort of thing to eliminate any a) weird MS OS shenanigans, and b) weird board/sata/drive issues. In Mint, you can at least have a quick check of your drives in the DISKS utility.

You also mention a power strip. Get a new one. It doesn't have to be a UPS, just a decent new strip to eliminate that as the culprit.
 
Girl_Downunder said:
You know the drill: unplug everything except the basics, remove the RAM + GPU & clean the contacts, reseat with only 1 stick of RAM, and see how it behaves. If I reach BIOS, I then like using a live Linux Mint USB to boot to for this sort of thing to eliminate any a) weird MS OS shenanigans, and b) weird board/sata/drive issues. In Mint, you can at least have a quick check of your drives in the DISKS utility.

You also mention a power strip. Get a new one. It doesn't have to be a UPS, just a decent new strip to eliminate that as the culprit.
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Today I replaced the processor with another FX-8350 and bought 2 new ram ddr3 (second hands), but nothing changed. Again, I have to leave it without power until the illuminated buttons on the motherboard go out. I will look for another AM3+ processor without the fx series, because it seems to me that the 8350 does not get along well with this motherboard. The power strip is a new Eaton, I put it in so I don't have to turn it off from the button on power supply.
 
Alkilator said:
Today I replaced the processor with another FX-8350 and bought 2 new ram ddr3 (second hands), but nothing changed. Again, I have to leave it without power until the illuminated buttons on the motherboard go out. I will look for another AM3+ processor without the fx series, because it seems to me that the 8350 does not get along well with this motherboard. The power strip is a new Eaton, I put it in so I don't have to turn it off from the button on power supply.
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I had exact MB and it worked perfectly with FX6350 and FX8350 even OC-ed to close to 5GHz, so it can't be compatibility issue with FX processors. Run windows 7 and 10 as well as Linux Mint.
 
CountMike said:
I had exact MB and it worked perfectly with FX6350 and FX8350 even OC-ed to close to 5GHz, so it can't be compatibility issue with FX processors. Run windows 7 and 10 as well as Linux Mint.
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So something is wrong with me or the bios settings are not correct. Currently in Bios - Cool & Quiet, C1E Support and SVM is disabled CinebenchR20 finish without freezing or rebooting my system. But the problem of starting after shutdown remains, I replaced almost all components except the video card.
 
Alkilator said:
So something is wrong with me or the bios settings are not correct. Currently in Bios - Cool & Quiet, C1E Support and SVM is disabled CinebenchR20 finish without freezing or rebooting my system. But the problem of starting after shutdown remains, I replaced almost all components except the video card.
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Was BIOS updated ? It also has dual BIOS and both can be different versions. Second/spare kicks in if primary fails.
 
Alkilator said:
I'm currently with the beta version of the bios FDe from the Gigabyte site. Bios didn't crash to boot from backup.
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Try resetting CMOS. It may or may not help, of course, but it that should be one of the first steps anyway when troubleshooting problems simply to remove the possibility of flaky settings interfering with operation.

When you try to start and it fails do any lights or fans turn on?
 
drea.drechsler said:
Try resetting CMOS. It may or may not help, of course, but it that should be one of the first steps anyway when troubleshooting problems simply to remove the possibility of flaky settings interfering with operation.

When you try to start and it fails do any lights or fans turn on?
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I reset the CMOS, removed the battery, waited 5 minutes, put the battery back in and forced it to overwrite the bios from the backup by pressing the power and reset buttons at the same time. Everything started, I left the bios at default, just set it to boot the ssd first. The system worked, but with a normal shutdown and subsequent startup, nothing started, the buttons on the motherboard remained lit. I decided to change all the cables from the power supply to the motherboard, the cable to hdd and video card, sata cable too. I left the case in front of me to see if the fans would turn on. Only this time I hooked the monitor from my main computer, and surprise all is well. I turn it off normally wait about a minute and start normally. I did this 3 times and decided that the problem was something from the cables. I collected the box and put it back in place and when I attached his monitor ( Dell P2414H ) and again the same problem starts, I stop it and I can't start it again. Already annoyed, I changed the monitors and I can't believe the problem is coming from the monitor. I can't figure out how the monitor won't let me start my computer. The instability is most likely due to the fact that I played a lot with the settings in the bios until I realized that everything is fine there, and from the beginning the problem it was the monitor.

PS: This explanation may have very long, I hope you understand me.
 
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Alkilator said:
Today I replaced the processor with another FX-8350 and bought 2 new ram ddr3 (second hands), but nothing changed. Again, I have to leave it without power until the illuminated buttons on the motherboard go out. I will look for another AM3+ processor without the fx series, because it seems to me that the 8350 does not get along well with this motherboard. The power strip is a new Eaton, I put it in so I don't have to turn it off from the button on power supply.
Click to expand...

The motherboard gets along fine. This was one of the most recommended motherboards for 125W AM3+ CPUs back in the day. You've already replaced the least likely part to fail once. There's clearly a problem, but it's unlikely to be the CPU's fault.
 
DSzymborski said:
The motherboard gets along fine. This was one of the most recommended motherboards for 125W AM3+ CPUs back in the day. You've already replaced the least likely part to fail once. There's clearly a problem, but it's unlikely to be the CPU's fault.
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As I wrote, the fault is the monitor that was attached to it. I can't fathom this.
 
COLGeek said:
Just saw this response. This could be a grounding issue that you noticed with the other monitor.

Are you using the backplate that came with the motherboard itself?
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Yes, I have a backplate. There was something wrong with this monitor. I had given it to a friend to use until he got a new one when his burned out. When I returned it, he told me that there was a problem with the DVI input and it wasn't working. I don't use it, so I didn't pay much attention. And now that I need it, I had forgotten about it because I use the DP port and the monitor was working. I don't know what could have burned in the DVI port to have an effect on the DP port and from there cause problems on the computer.
 
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