Question Changed computer cases and now PC will not power up at all

[MinKee]

I have a ROG strix z790-a motherboard, msi 1000g PSU, GeForce 4070 super, I just changed over from a pre built case to a ASUS tuf 502 case, I am re using the fans from the pre built case. All of the components were in the original case working fine, when I plug in the new case the motherboard rgb turns on but when I press the power button nothing happens, anyone have any suggestions on a fix could be? It looks like everything is plugged into the motherboard correctly

 

[RAIDGoblin]

check, double check and triple check everything, check first that nothing is shorting on the back/front of the mobo, then that the power cables are all plugged in, and are all properly plugged in, that the ram is fully in, CPU fan is fully in, GPU is fully in etc...

next check the switch header, and look up the front panel pinout of your mobo, after you are sure you have checked everything else try putting a jumper across the power switch pins on your mobo instead of the case switch

it worked before so it's likely that you have missed something

 

[MinKee]

check, double check and triple check everything, check first that nothing is shorting on the back/front of the mobo, then that the power cables are all plugged in, and are all properly plugged in, that the ram is fully in, CPU fan is fully in, GPU is fully in etc...

next check the switch header, and look up the front panel pinout of your mobo, after you are sure you have checked everything else try putting a jumper across the power switch pins on your mobo instead of the case switch

it worked before so it's likely that you have missed something

Thank you for the reply, I was planning on just starting over when I get out of work today, the front panel plug that came with the case is just the power and reset wires in an 8pin plug, and when you say putting a jumper across the switch pins how exactly would I do that? As my first thought was maybe the case had a faulty switch or something

 

[ohio_buckeye]

You could even take a screwdriver and touch the 2 pins on the board labeled power button. If it turns on you know something is up with the switch on your case probably if it was connected correctly.

 

[RAIDGoblin]

Thank you for the reply, I was planning on just starting over when I get out of work today, the front panel plug that came with the case is just the power and reset wires in an 8pin plug, and when you say putting a jumper across the switch pins how exactly would I do that? As my first thought was maybe the case had a faulty switch or something

no problem, here's a link to your mobo manual:

https://gzhls.at/blob/ldb/3/7/3/a/995735693c61352cfd4357d87aa63fb0ed5b.pdf

the front panel pinout is in chapter 1 pg 13, called system panel header, this info is sometimes printed on the mobo if your lucky, the two pins labelled PWRSW (short for power switch) are the ones you would have to momentarily short together, while the PSU is turned on and plugged in, to switch the PC on

If you have any old IDE hard disks lying around, they usually have some pieces of plastic that look like this:

that's called a jumper, the safest way to power on a mobo without a switch is to short the pins with one of those, but you can also use any metal object, just a terminal screwdriver (like @ohio_buckeye suggested), just be careful you don't drop it/touch anything else etc... because damage can happen

I would still thoroughly check everything else before trying this

good luck 😉

 

[MinKee]

no problem, here's a link to your mobo manual:

https://gzhls.at/blob/ldb/3/7/3/a/995735693c61352cfd4357d87aa63fb0ed5b.pdf

the front panel pinout is in chapter 1 pg 13, called system panel header, this info is sometimes printed on the mobo if your lucky, the two pins labelled PWRSW (short for power switch) are the ones you would have to momentarily short together, while the PSU is turned on and plugged in, to switch the PC on

If you have any old IDE hard disks lying around, they usually have some pieces of plastic that look like this:

that's called a jumper, the safest way to power on a mobo without a switch is to short the pins with one of those, but you can also use any metal object, just a terminal screwdriver (like @ohio_buckeye suggested), just be careful you don't drop it/touch anything else etc... because damage can happen

I would still thoroughly check everything else before trying this

good luck 😉

Awesome thank you all for your responses, i will try all of this as soon as i get home!

 

[triplex1]

Check the cables from the front panel to the motherboard you have installed.
If it's not there, take out the motherboard and try it

 

[RAIDGoblin]

I just had a thought, I might have the wrong idea, if I have ignore me, but you said:

the front panel plug that came with the case is just the power and reset wires in an 8pin plug

I don't know if this is correct (it's pulled from a somewhat unknown website) but this should be the manual page for the front panel for the ASUS tuf 502

it doesn't show an '8 pin plug for power and reset' like you describe, the closest thing to an 8 pin plug here is the 10 pin audio header, the switch and reset are the two little ones shown at the top. For your front panel to work you would need to plug the two pin one (POWER SW) across the two pins shown in your mobo manual that I pointed out earlier

[edit] here:

your pre-built would have had an all in one 8 pin plug for the case front that would look very similar to the audio header