[SOLVED] PC turns off on first boot

[iKaezon]

Hi there,

Just recently finished building my first PC and soemtimes on my first boot of the day after leaving the PC unplugged overnight or even for just a few hours, it will turn on for a few seconds (all RGB/fans spinning), then suddenly shut off. After this when I proceed to turn the PC back on again, it boots perfectly fine with no issues (This second boot takes a little longer than my usual boot however). Despite this, the issue isn't too problematic as it only happens once every day or two and my temps and games run perfect

Keep in mind, I just replaced my PSU yesterday with the new 750w one and (I previously had 550w when I first finished the build a few weeks ago and was told that was the main issue causing it), just updated BIOS, and turned fast boot off. None of these have fixed the issue

• MSI MPG Z490 Gaming Edge Wifi
• i7 10700k
• MSI RTX 2070 Super
• 2x8gb Corsair Vengeance RGB
• Corsair H100i AIO
• Samsung 970 Evo M.2 500gb SSD
• Seasonic GX-750
• Seagate Barracuda 2tb HDD
• 3x CoolerMaster case fans

 

[Darkbreeze]

That is normal and it is BECAUSE you are unplugging it. It has to re-train the memory configuration after losing power. There is no reason, at all, to unplug or switch off the power supply, ever, unless you are working on the system. In fact, it is highly recommended that you DO NOT do that.

Try not unplugging and not switching off the switch on the back of the power supply, either one, and I'm pretty sure you will not have this problem anymore. It is perfectly acceptable to simply put the system to sleep or use the normal shut down routine, without doing anything beyond that. If you have problems, such as system powering on when not wanted or other such issues then simply disable hibernation, which also disables the hybrid sleep/fast restart, and is recommended to do ANYWAY on Windows 8.1 and 10 systems.

 

[iKaezon]

That is normal and it is BECAUSE you are unplugging it. It has to re-train the memory configuration after losing power. There is no reason, at all, to unplug or switch off the power supply, ever, unless you are working on the system. In fact, it is highly recommended that you DO NOT do that.

Try not unplugging and not switching off the switch on the back of the power supply, either one, and I'm pretty sure you will not have this problem anymore. It is perfectly acceptable to simply put the system to sleep or use the normal shut down routine, without doing anything beyond that. If you have problems, such as system powering on when not wanted or other such issues then simply disable hibernation, which also disables the hybrid sleep/fast restart, and is recommended to do ANYWAY on Windows 8.1 and 10 systems.

Hi there,

I have actually experienced this problem while not even unplugging it. For example, if I leave the PC off for 24 hrs straight, it will shut off on its very first boot. I have heard that resetting CMOS might help.

 

[Darkbreeze]

I'm going to guess you do not have your DIMMs installed in the second and fourth slots over from the CPU, which are the A2 and B2 slots, and is where they SHOULD be installed. Where, EXACTLY, starting at the slot next to the CPU as slot 1 and moving to the right towards the edge of the motherboard with the last slot being slot four, are yours installed? If they are not in slots 2 and 4, which are the second slot away from the CPU and the one closest to the edge of the motherboard, then move them to those slots, then reset the BIOS and try it again to see if the problem is resolved.

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.


If that does not resolve the issue, please list the EXACT model of your memory kit, and whether ALL memory modules being used came TOGETHER, in ONE kit, or whether they were purchased/obtained separately, not in one kit.

It would also be very helpful to know whether or not you performed a clean install of Windows WHEN you built this system, or if you are trying to use a Windows installation from BEFORE this system was built? Additionally, if that 970 EVO has Windows on it now BUT the Seagate hard drive HAD Windows installed on it previously, we need to know if that drive was connected or not connected to the system during the installation of windows on the SSD?

 

[iKaezon]

I'm going to guess you do not have your DIMMs installed in the second and fourth slots over from the CPU, which are the A2 and B2 slots, and is where they SHOULD be installed. Where, EXACTLY, starting at the slot next to the CPU as slot 1 and moving to the right towards the edge of the motherboard with the last slot being slot four, are yours installed? If they are not in slots 2 and 4, which are the second slot away from the CPU and the one closest to the edge of the motherboard, then move them to those slots, then reset the BIOS and try it again to see if the problem is resolved.

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.


If that does not resolve the issue, please list the EXACT model of your memory kit, and whether ALL memory modules being used came TOGETHER, in ONE kit, or whether they were purchased/obtained separately, not in one kit.

It would also be very helpful to know whether or not you performed a clean install of Windows WHEN you built this system, or if you are trying to use a Windows installation from BEFORE this system was built? Additionally, if that 970 EVO has Windows on it now BUT the Seagate hard drive HAD Windows installed on it previously, we need to know if that drive was connected or not connected to the system during the installation of windows on the SSD?

Hi there,

My Ram is indeed installed in the A2 and B2 slots of my motherboard. I did install a clean version of Windows 10 onto the 970 Evo, and the HDD is brand new and has never had Windows installed on it, and I unplugged the HDD during the Windows 10 installation as a precaution so all possible problems would be prevented.

With regard to my memory. this is the link to the Corsair Vengeance RGB Pro .

https://www.corsair.com/us/en/vengeance-rgb-pro-memory

Even though my Ram is in the correct slots, should I still perform a BIOS/CMOS reset?

 

[Darkbreeze]

It couldn't hurt to try, but I don't know that it's going to fix anything. I'd still TRY it anyhow though.

That is not a model, that is a link to the SERIES. Series doesn't mean squat. Model is what matters.I need the exact model of your kit to determine if Corsair says it is compatible with that board or not. You can find the model by installing CPU-Z, opening it, clicking on the SPD tab, selecting one of the slots from the drop down menu that has a DIMM installed in it and then looking at the model listed in the "part number" field that becomes populated.