STRIX Z790-H No post

[xmanrigger]

So my son got all the components and we got his new PC all together. Big issue. This is my first build out of more than 20 that didnt start up and go into the BIOS first push of power switch. Gets stuck on boot at white light on mobo that indicates VGA error. No video signal.

Card is a MSI RTX 3070 Ventus (waiting on a 4070Ti). Tried a GTX1070. No video and wont enter BIOS. No beeps on PC speaker. Re-seated memory, checked every power cable connection, re-seated video card. Both video cards test good prior to and after.

When first inspecting CPU socket on mobo and prior to installing CPU, one pin in the socket had a shine to it more than any others. I took a close up picture of the area with my cell phone, but they all looked good.

Pump/rez combo is a Alphacool Eisbecher Aurora D5 Acetal/Glas – 150mm with D5 VPP655 PWM Pump. When powering up PC, all fans and pump start up at full speed initially, but then rpm's drop. Fans stay running but pump stops. Could this possibly be a PSU issue? Or is that what to expect from the pump being it isnt getting full power? Pump is powerd by a molex and sensor wire on Chass. #3 Fan header. Fans are on the CPU header.

Could this be a CPU contact pressure issue? It is very difficult to evenly tighten the EK waterblock retention bolts due to mobo VRM cooler. I have to remove VRM heatsink to mount a f'n, EK waterblock? Hey Eddie, how about some screw driver friendly retention nuts? Thumb nuts are nice. But so is the option of using a tool.

His System Specs: (all components brand new other than video cards we tried)
MOBO: Asus Strix Z790-H
CPU: i7-14700KF (Thermaright Contact Plate)
MEM: GSKILL TridentZ5 (F5-6400J3239G16QX2-TZ5RK)
PSU: Seasonic Focus 1000w
M.2 is in Slot 1, no other drives connected

Any ideas?

 

[FreedomEclipse]

Sounds like you might require a bios update... the 14700KF isnt supported until bios 1202

Although the most current bios is 1501 and in theory should include all the fixes and additions in the previous bioses but update to 1202 before jumping to 1501 just to be safe

In theory, the 'flashback/crashfree' system should work for updating your bios but consult the manual for more information.

 

[ir_cow]

USB flash for ASUS works. Just need to follow the steps correctly.

 

[xmanrigger]

UPDATE: SOLVED

Thanks for the replies.

It was the BIOS. I did the BIOS flashback to the latest and mobo posted with video.

Issue though. I used a GTX680 for a video card. When BIOS posted, it indicated this card isnt supported. Should I relash the BIOS before installing the RTX 3070? Or is just resetting the BIOS going to be good enough. I think it made some changes itself.

 

[FreedomEclipse]

Issue though. I used a GTX680 for a video card. When BIOS posted, it indicated this card isnt supported. Should I relash the BIOS before installing the RTX 3070? Or is just resetting the BIOS going to be good enough. I think it made some changes itself.

No youre fine to carry on with the 3070. Not supported just means the 680 doesnt have UEFI bios support and it probably doesnt given its age.

 

[pressing on]

When first inspecting CPU socket on mobo and prior to installing CPU, one pin in the socket had a shine to it more than any others.

Might be a damaged pin. One damaged pin can be enough to stop a boot, and if that is the case there is no solution for it. RMA/return the board to the vendor for a refund or replacement.