Question PC power cycles continuously in Sleep Mode ?

[Red1917]

Hey, thanks for taking the time to read this.

Recently my PC has begun power cycling in sleep mode. A few seconds after I put my PC to sleep the fans will spin back to life and the power button will light up. The PC will run like this for about a minute before powering down again for a few seconds and repeating the cycle.

While this is happening the monitor remains in low power mode and is never woken up.I can break the cycle at any point by moving the mouse or pressing a keyboard button. This causes the monitor to wake up and for the computer to operate normally.

I put the PC to sleep every night and this has occurred three times in the past two weeks. I can resolve the problem by restarting the PC, but I’d like to know what’s causing this in case it’s a sign of my PSU or motherboard failing.
I can’t find any information about this problem online so any advice will be appreciated.

Thank you!

 

[kerberos_20]

does pc turns off or it stays alive whole time when this happens?

 

[Red1917]

does pc turns off or it stays alive whole time when this happens?

I don’t believe it completely turns off because even during the few seconds of the “powered down” phase I can still bring the computer back to normal operation by moving the mouse or tapping the keyboard. Next time this happens I will make sure to test this to be certain.

 

[jonnyguru]

Hey, thanks for taking the time to read this.

Recently my PC has begun power cycling in sleep mode. A few seconds after I put my PC to sleep the fans will spin back to life and the power button will light up. The PC will run like this for about a minute before powering down again for a few seconds and repeating the cycle.

While this is happening the monitor remains in low power mode and is never woken up.I can break the cycle at any point by moving the mouse or pressing a keyboard button. This causes the monitor to wake up and for the computer to operate normally.

I put the PC to sleep every night and this has occurred three times in the past two weeks. I can resolve the problem by restarting the PC, but I’d like to know what’s causing this in case it’s a sign of my PSU or motherboard failing.
I can’t find any information about this problem online so any advice will be appreciated.

Thank you!

It would be really nice to know what hardware you're using. Especially what motherboard and what BIOS revision as well as what PSU.

What's you're describing sounds exactly like modern standby mode.

 

[Red1917]

It would be really nice to know what hardware you're using. Especially what motherboard and what BIOS revision as well as what PSU.

What's you're describing sounds exactly like modern standby mode.

Absolutely, my mobo is a Gigabyte B560M DS3H and my BIOS version is "American Megatrends International, LLC. F3, 3/16/2021" according to the Sys Info. If that's not what you were looking for just let me know and I can find the right information.

I don't know the exact model of my PSU. It's manufactured by Thermaltake and it's 600 watts. The rest of my hardware specifications are listed in my bio on my profile.

 

[jonnyguru]

Thermaltake and it's 600 watts

That's a manufacturer and a wattage. Might as well say you have a Buick with a V6. Did you not build this PC yourself?

 

[Red1917]

That's a manufacturer and a wattage. Might as well say you have a Buick with a V6. Did you not build this PC yourself?

I did, but I bought this PSU five years ago, and I don’t recall the exact model number.

 

[jonnyguru]

I did, but I bought this PSU five years ago, and I don’t recall the exact model number.

You bought the PSU and motherboard at the same time and this problem just developed? Or did you update the motherboard and/or BIOS recently?

You can't look at the PSU and see what the model of it is?

In the BIOS, are all sleep states set to "auto"?

 

[Red1917]

You bought the PSU and motherboard at the same time and this problem just developed? Or did you update the motherboard and/or BIOS recently?

You can't look at the PSU and see what the model of it is?

In the BIOS, are all sleep states set to "auto"?

I popped the side panel off and it's a Thermaltake TR2 600w.

I built the system in 2017, but I upgraded my CPU and motherboard earlier this year. This problem began just two weeks ago. It's possible it's related to the upgrade, but everything has operated normally for months after the upgrade.

 

[bignastyid]

Thermaltake TR2 600w

You are going to want to replace that. Just feel lucky it gave you a sign it was dying. I have seen those units take out systems when they fail.

 

[jonnyguru]

Ok. It's a terrible and old PSU. It makes sense that it and the new mobo doesn't play well together.

You might want to make sure that "ErP" is disabled in the BIOS. Also, "C-Starte Control" should be "disabled". At least until you get a decent PSU... which should be sooner than later.

A lot of people don't realize that there's more to a PSU than just "wattage".

 

[Red1917]

Thanks you two. Honestly until I looked at my PSU today I had been thinking it was 80+ rated. I guess my memory had failed me. I'll be ordering something more reliable immediately.

 

[Red1917]

Just logging back in to discuss another issue, but I wanted to add a note here for posterity. I replaced the PSU with a high quality Corsair model and this issue has still persisted since then. I'm really at a loss, but I've just lived with it by not using the sleep feature.