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weird PC behaviour

Joined
Feb 6, 2019
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103 (0.04/day)
Processor i7 x990
Motherboard GA-X58A-UD3R
Cooling Original Intel Heatsink cooling
Memory 24 GB DDR3 1866 Fury black cl.10 1.5v
Video Card(s) R9 Fury_X
Storage Samsung 860 EVO 500GB + Wd_Elements 3TB
Display(s) TV Samsung
Case Kandalf VA9000 BWS Full tower
Audio Device(s) Azalia ALC 889
Power Supply inter-tech argus 750w 80+ gold
Mouse a4tech
Keyboard no_name wireless
Software win 10 pro x64
Cheers to all,
I have a weird behavior with my computer.When I lose the power from the outlet and suddenly come back im not able to power on my PC.To do that, I must remove my VGA video card from the slot first to power on my pc.In BIOS settings :Restore AC/Power loss is always se to Power Off when i have power lose from the outlet,and I don t know why.Always I must enter the bios to set Power ON to work correctly.My battery motherboard is new and have 3.3v.Bios of the motherboard is up to date at version 3602.
system spec:
-i7 2600k
-mob: p8p67 pro rev 3.1
-ram 24g 1866 fury
-psu inter tech argus 750w-new condition
why never save the last setting Power On in bios when I have current fall ??When I shut down the PC from windows I don t have any problems.
 

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What GPU do you have?
 
maybe is a garbage but with another PSU brand have the same behavior......
Theres no maybe about it...that psu is garbage. :)... get a new one, a quality one sooner than later.

Another no name psu showed the same behavior?


Have you tried an OS install?
 
Buy one cheap UPS and configure it to shutdown PC in 1 min after power loss.
 
Safer to leave the BIOS set to power off.
 
Clear cmos, power on, save optimized defaults.
 
Gold rating is the efficiency, not the quality of the unit. ;)

I wish I could see the UL # so I can get the OEM. But that thread at JG was pretty telling when it uses the words 'dangerous' to describe it, lol.

I'm just wondering if there is some sort of surge this PSU (and the other he hasn't mentioned a brand on) isn't handling on the power outages and borking the BIOS somehow.
 
I don't understand this weirdness with VGA card.Why if I remove video card from slot,the system power On without problem?I tried with another card same result,i tried with another psu same result..cmos is clear,mobo battery is new....
it is possible to have problem with supply floor of the motherboard?
 
i tried with another psu same result
If you swapped in a second power supply and it did the same thing, then it does not matter if the first supply is a hunk of the junk. That is not your problem.

This is pointing to your motherboard going bad.

it is possible to have problem with supply floor of the motherboard?
I don't know what you mean by "supply floor". If you mean where you mount the motherboard in the case, they don't just go bad. If there was a problem, like an extra case standoff, you would have had problems from the start.
 
For giggles, what is the brand and model of the second PSU you tried? If it is the same type of sub-par device, it makes sense a new one didn't stop it.

That said, it may be a board issue. Can you use your GPU in another slot? If so, does the problem happen then as well?
 
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Tell me does this happens if you put gpu in white pci-e 16x slot?
 
What other componets have you tried besides the video card?
RAM? Your not doing any overclocking are you?
And are you choosing the motherboard default BIOS settings?
Did you to do fresh flash of the BIOS? or try a different Ver?
What happens when you just use the iGPU ?
 
"Restore AC/Power loss" set to "Power Off" means that the computer will stay off if it shut down because of a power outage.
When "Restore AC/Power loss" is set to "Power ON" it means that the computer will power on as soon as power is restored after a power outage. This is useful if the computer is a server/NAS/router that should be on all the time.
At least that is the normal behavior of this function.
 
I don't understand this weirdness with VGA card.Why if I remove video card from slot,the system power On without problem?I tried with another card same result,i tried with another psu same result..cmos is clear,mobo battery is new....
it is possible to have problem with supply floor of the motherboard?
Have you tried to use the other pciex slot just to check
 
If it is the same type of sub-par device, it makes sense a new one didn't stop it.
With the exact same "weird" symptoms? No. The odds of that happening is extremely rare. The odds it happening at the same point in time (when the PSU works fine otherwise) is near impossibly rare. I am not saying two supplies can't fail completely at the same time, but that is not what's happening here. The supplies work fine once the boot finally happens.

The power-on behavior after a power outage is set in the BIOS Setup menu. These are not PSU options. So if this is a setting issue, it will be in the BIOS. If it is a fault somewhere, it did not suddenly develop in two different PSUs.
When "Restore AC/Power loss" is set to "Power ON" it means that the computer will power on as soon as power is restored after a power outage.
Right but this is not what most people want or should do. This setting is often used for "unattended computers" like a server stuck in a computer room at a remote location. This also requires the OS to boot without the user entering a password - not a safe option.

The default setting is for the computer to remain off until the user presses the power button again. This prevents the computer from going up and down, up and down in bad weather, for example.

I would try a different graphics card. If that does not fix the problem, then IMO, the motherboard is likely at fault.
..cmos is clear,mobo battery is new....
When you replace a CMOS battery, you need to boot directly into the BIOS Setup menu, verify date and time are correct, as well as boot order (if not the default). Then you must "Save" and Exit. Did you do that?
 
in this instance I would breadboard and if the problem remains the same then I would test his card in a different system and test a different card in his existing system.
If you swapped in a second power supply and it did the same thing, then it does not matter if the first supply is a hunk of the junk. That is not your problem.

This is pointing to your motherboard going bad.

I don't know what you mean by "supply floor". If you mean where you mount the motherboard in the case, they don't just go bad. If there was a problem, like an extra case standoff, you would have had problems from the start.
 
in this instance I would breadboard and if the problem remains the same then I would test his card in a different system and test a different card in his existing system.
That seems like a reasonable troubleshooting approach to me as this would test both the graphics solution and motherboard.
 
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