Question PC power button blinks, can't boot PC ?

[twopixel]

I've been using an ASUS G10AC for quite sometime till one day when switching on, power button starts to blink but not able to boot, nothing on the screen, even when changing CMOS batt and taking out everything, unplugging everything except a single ram. Result still the same when power on power button blink but not booting. Could this be a failure of mobo or psu if so can anyone recommend reasonable price with same dimension of psu to fit the casing, as Im not sure is this the failure of present psu if is not i will be wasting money on new psu.
The defaultpsu for G10AC is delta_dps500ab6_a_500w.

 

[Misgar]

Is this your power supply? If so, it's a standard ATX PSU and you can replace it with any one of dozens of good quality power supplies, or hundreds of nasty cheap low quality units.

Choose something from the top three tiers in this list (check the exact model number carefully and see if you can match it in the list). If you can afford it, buy a Tier A High-End PSU. Don't go any lower than Tier C Low-End.
https://cultists.network/140/psu-tier-list/

I don't think you need anything fancy with multiple 6/8-way PCIe power cables for power hungry graphics cards. By the looks of it all you need is a 24-way ATX and an 8-way EPS12V cable for the motherboard, plus a selection of SATA and old-fashioned Molex connectors for hard disks and optical drives.

 

[twopixel]

Is this your power supply? If so, it's a standard ATX PSU and you can replace it with any one of dozens of good quality power supplies, or hundreds of nasty cheap low quality units.

Choose something from the top three tiers in this list (check the exact model number carefully and see if you can match it in the list). If you can afford it, buy a Tier A High-End PSU. Don't go any lower than Tier C Low-End.
https://cultists.network/140/psu-tier-list/

I don't think you need anything fancy with multiple 6/8-way PCIe power cables for power hungry graphics cards. By the looks of it all you need is a 24-way ATX and an 8-way EPS12V cable for the motherboard, plus a selection of SATA and old-fashioned Molex connectors for hard disks and optical drives.

Hey thanks, everything works until when I started dusting off the thick dust from the motherboard and PSU with a paintbrush, I even take out the fan from PSU to brush off the dust. All these I had done in the past before but when I fixed back everything, PSU working, and the fan is spinning I even did a paperclip test on PSUs only the power button from the pc starts blinking but not booting. I have been browsing online for answers it narrow down either PSU was damaged I may brush off too hard on the capacitor or the mobo was damaged. But I need a second opinion from anyone who encountered the power button blinking but nothing on the screen.
I just do not want to waste any money on the wrong component.

 

[DSzymborski]

The symptoms you describe are common and can be a whole bunch of different issues. In situations like this, it's extremely rare to know with absolutely certainty what the one definite problem is, so you're asking for a degree of certainty than nobody honest can give you.

 

[twopixel]

The symptoms you describe are common and can be a whole bunch of different issues. In situations like this, it's extremely rare to know with absolutely certainty what the one definite problem is, so you're asking for a degree of certainty than nobody honest can give you.

I know what you mean thanks.

 

[DSzymborski]

I know what you mean thanks.

I wish it were more direct. You should see this past weekend I spent the entirety of resolving a single problem that turned out to be far smaller than I expected. It's frequently just not clear cut.

 

[twopixel]

Yea, I can relate to that, and at times how the machine works cannot be explained by logic when you try to solve with every possible way in machine 1+1 must be 2, no it doesn't always turn out that way.