Very Strange Problem

[vwcrusher]

Experiencing a very strange behavior after switching out PSU and case, all other components are identical as before.

After working on the PC, I typically put it in sleep mode, and when I want on again I simply hit a key and it wakes up. Now when I do that the monitor turns on for a second and then turns off! I cannot get it to come to life other than reboot the system.

Honestly, all internals have not changed, but clearly something did; please help.

For the record the old PSU was a XFX Pro550W Bronze; the new is a Seasonic Focus+ 650W gold. The old case was a Xion Onyx XON-303; the new is a FD Define R6.

Again thanks for the help; this is weird.

 

[clarkjd]

Experiencing a very strange behavior after switching out PSU and case, all other components are identical as before.

After working on the PC, I typically put it in sleep mode, and when I want on again I simply hit a key and it wakes up. Now when I do that the monitor turns on for a second and then turns off! I cannot get it to come to life other than reboot the system.

Honestly, all internals have not changed, but clearly something did; please help.

For the record the old PSU was a XFX Pro550W Bronze; the new is a Seasonic Focus+ 650W gold. The old case was a Xion Onyx XON-303; the new is a FD Define R6.

Again thanks for the help; this is weird.

What are the rest of your system specs (CPU, MB, GPU, Etc.)?

 

[vwcrusher]

Experiencing a very strange behavior after switching out PSU and case, all other components are identical as before.

After working on the PC, I typically put it in sleep mode, and when I want on again I simply hit a key and it wakes up. Now when I do that the monitor turns on for a second and then turns off! I cannot get it to come to life other than reboot the system.

Honestly, all internals have not changed, but clearly something did; please help.

For the record the old PSU was a XFX Pro550W Bronze; the new is a Seasonic Focus+ 650W gold. The old case was a Xion Onyx XON-303; the new is a FD Define R6.

Again thanks for the help; this is weird.

What are the rest of your system specs (CPU, MB, GPU, Etc.)?

Thanks for the reply; below is the rest of the system:

Intel i7-3770 3.4GHz
Cooler Master Hyper 212 EVO
ASUS P8H77-V MB
16GB DDR3
Samsung 256GB 830 SSD (OS and apps)
1TB WD Black HDD 64MB cache (data)
Auria 27" EQ276W (2560 x 1440) Monitor

Perhaps the timing of the events will help:

After putting it in sleep, the fans stop and the monitor turns off (red led). When I hit a key to wake up, the fans start up, the monitor led goes green, then the screen notes "no signal" for a second flashes and then turns off. Could it be a GPU issue?

 

[clarkjd]

Possibly. I would be inclined to suspect a BIOS setting. Make sure that your sleep and hybernation states are still enabled in BIOS.

 

[vwcrusher]

Possibly. I would be inclined to suspect a BIOS setting. Make sure that your sleep and hybernation states are still enabled in BIOS.

Went into bios and could not find anything related to sleep and hibernation......ugh.

I wonder if the new PSU doesn't apply power to the GPU right away causing the monitor to shut down?

 

[clarkjd]

Possibly. I would be inclined to suspect a BIOS setting. Make sure that your sleep and hybernation states are still enabled in BIOS.

Went into bios and could not find anything related to sleep and hibernation......ugh.

I wonder if the new PSU doesn't apply power to the GPU right away causing the monitor to shut down?

They might be referred to as "C6/C7" states. IDK about the GPU not "waking uo" in a timely matter.

 

[vwcrusher]

Figured it out!
My bad actually; there are two PCIe slots in my MB and I placed the GPU in the slot that provided the best air flow; I didn't realize it was a slot for SLI.

After moving the card up to where it originally was in old chassis.....works like it should.
DUH.

 

[clarkjd]

Figured it out!
My bad actually; there are two PCIe slots in my MB and I placed the GPU in the slot that provided the best air flow; I didn't realize it was a slot for SLI.

After moving the card up to where it originally was in old chassis.....works like it should.
DUH.

Glad you got it sorted out!