H670M-ITX/ax no signal on i5-12400

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   Hi, I got fellowing new harewares but I am unable to make it work:

ASRock H670M-ITX/ax
i5-12400
Corsair Vengeance LPX 16GB (2x8GB) DDR4 DRAM 3200MHz C16
SAMSUNG 980 PRO 500GB (in M2_1 slot)
(no GPU)

When power on, no signal in HDMI or DP 

Tried:
1. update BIOS
2. reset CMOS
3. change for another PSU (working on another PC)
(still doesn't work)

4. remove all Memory. (didn't hear even a beep. no buzzer?)

any suggestion on troubleshooting before initializing a return?

Thanks!

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log4j Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 01 Apr 2022 Status: Offline Points: 20	Post Options Post Reply Quote log4j Report Post Thanks(0) Quote Reply Topic: H670M-ITX/ax no signal on i5-12400 Posted: 01 Apr 2022 at 2:48am
	Hi, I got fellowing new harewares but I am unable to make it work: ASRock H670M-ITX/ax i5-12400 Corsair Vengeance LPX 16GB (2x8GB) DDR4 DRAM 3200MHz C16 SAMSUNG 980 PRO 500GB (in M2_1 slot) (no GPU) When power on, no signal in HDMI or DP Tried: 1. update BIOS 2. reset CMOS 3. change for another PSU (working on another PC) (still doesn't work) 4. remove all Memory. (didn't hear even a beep. no buzzer?) any suggestion on troubleshooting before initializing a return? Thanks!

threadzipper1957 Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 05 Mar 2022 Status: Offline Points: 9365	Post Options Post Reply Quote threadzipper1957 Report Post Thanks(0) Quote Reply Posted: 09 Aug 2022 at 8:14pm
	When both 8 Pin CPU power and 24 Pint ATX cable are connected, it should start. you could try shortcircuiting the 2 pins of the Power Sw on the System panel header on the board
	Kind Regards