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Corsair HX750 problem

post #1 of 13
Thread Starter 
Okay so I'm a beginner when it comes to building computers, and the one I'm building right now is actually my first one. I got everything assembled and I try and power on the computer and it turns on for about a second and turns off, and I hear an audible click coming from the power supply unit. I double checked all the connections inside the computer. Any ideas/suggestions??

Rest of the rig:

FX-8350
Gigabyte GA-990FXA-UD3
Corsair H80
Corsair Vengeance 8GB 1866MHz
Sapphire 7950 3GB
ADATA XPG SX900 128GB SSD
WD Blue 1TB HDD
Asus DVD drive
Antec Eleven Hundred case
post #2 of 13
Did you make sure you plugged in the power connector for the CPU?
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 4770k Asrock Z97 Extreme6 EVGA GTX 1080 FTW 16GB DDR3 1866 
Hard DriveOSMonitorKeyboard
Samsung 840 Pro 256GB SSD / 3TB Seagate / 1TB ... Windows 10 Pro 64-bit Asus PG279Q Das Prime 13 
PowerCaseMouseMouse Pad
Corsair RM850 CM Storm Stryker Logitech G900 Razer Goliathus 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 4770k Asrock Z97 Extreme6 EVGA GTX 1080 FTW 16GB DDR3 1866 
Hard DriveOSMonitorKeyboard
Samsung 840 Pro 256GB SSD / 3TB Seagate / 1TB ... Windows 10 Pro 64-bit Asus PG279Q Das Prime 13 
PowerCaseMouseMouse Pad
Corsair RM850 CM Storm Stryker Logitech G900 Razer Goliathus 
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post #3 of 13
Thread Starter 
Quote:
Originally Posted by siryak View Post

Did you make sure you plugged in the power connector for the CPU?


Yeah everything is plugged in, just checked it again.
post #4 of 13
Thread Starter 
Just pulled the power supply out of the case, does not look like there is anything that is impeding the fan from spinning. I also did try the paperclip test a few times over to see what would happen, and it was the same thing, it spun up for about two or three seconds then stopped spinning. Should I just RMA it?
post #5 of 13
Current-gen Corsair GS, TX, HX, AX, and AXi all turn off the fan for low loads / temps. PSU fan not spinning is not an indication of anything wrong.

Do all the usual troubleshooting like rebuilding out of the case, removing all components except CPU, GPU, 1 RAM stick, etc. and seeing if it works with a minimal setup (then build from there or try a different system / motherboard).
post #6 of 13
Thread Starter 
Quote:
Originally Posted by mikeaj View Post

Current-gen Corsair GS, TX, HX, AX, and AXi all turn off the fan for low loads / temps. PSU fan not spinning is not an indication of anything wrong.

Do all the usual troubleshooting like rebuilding out of the case, removing all components except CPU, GPU, 1 RAM stick, etc. and seeing if it works with a minimal setup (then build from there or try a different system / motherboard).


Okay will do, thanks for the help!
post #7 of 13
Thread Starter 
Quote:
Originally Posted by mikeaj View Post

Current-gen Corsair GS, TX, HX, AX, and AXi all turn off the fan for low loads / temps. PSU fan not spinning is not an indication of anything wrong.

Do all the usual troubleshooting like rebuilding out of the case, removing all components except CPU, GPU, 1 RAM stick, etc. and seeing if it works with a minimal setup (then build from there or try a different system / motherboard).



Tried rebuilding it out of the case with a minimal setup, still didn't work, don't have another system I can try it on, just have my laptop.
post #8 of 13
Power supply outputs stay stable or they cut off? Check with multimeter. If they cut off, then try again with paperclip and see what the voltages are.

Try resetting BIOS, if you didn't already.

Do you have the PC speaker hooked up? Get POST beeps? If yes, consult motherboard manual to see what they mean. No display outputs?

Reseat everything again for good measure and double-check ATX 20+4 pin / ATX12V (CPU power) 4+4 pin / HD 7950 both PCIe 6-pin / CPU fan are all plugged in.

If nothing comes up, it's hard to crosscheck without using a different power supply and different motherboard.
post #9 of 13
Thread Starter 
Quote:
Originally Posted by mikeaj View Post

Power supply outputs stay stable or they cut off? Check with multimeter. If they cut off, then try again with paperclip and see what the voltages are.

Try resetting BIOS, if you didn't already.

Do you have the PC speaker hooked up? Get POST beeps? If yes, consult motherboard manual to see what they mean. No display outputs?

Reseat everything again for good measure and double-check ATX 20+4 pin / ATX12V (CPU power) 4+4 pin / HD 7950 both PCIe 6-pin / CPU fan are all plugged in.

If nothing comes up, it's hard to crosscheck without using a different power supply and different motherboard.


Okay I want to try and reset the BIOS and I see the "CLR_CMOS" pin header on the motherboard but it did not come with a jumper to put in there, and I went to check the motherboard manual and could not find anything about it, it had literature about doing it while you're actually in the BIOS itself but obviously I can't get the system to even power on to do that.

Case/motherboard did not come with a speaker unfortunately either frown.gif

Have to see if my stepdad has a multimeter I can use, he's a retired electrical engineer so he may have one.
post #10 of 13
Thread Starter 
UPDATE: Checked the power supply with the multimeter, it turned out not to be the unit because it was showing voltages, went and unplugged all the front panel connections on the case with the exception of the power switch, went to turn on the power and it came on. So it's probably just something with the front panel connection that was messed up.
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