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Author Topic: VGA led issues on MPG Z390 pro carbon AC  (Read 148 times)

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novaneithTopic starter

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VGA led issues on MPG Z390 pro carbon AC
« on: 06-December-18, 20:39:37 »

Hello
I'm pretty new to all this so I hope I'll find answers here.
Full specs:
MSI MPG Z390 gaming pro carbon AC
Intel I7 9700k
gigabyte geforce GTX 1080 Ti
Corsair TX650M

I just built my PC but when I power it up there's no display at all, and the VGA debug led (GPU not detected) is on.
I tried differents PCIe ports for the 1080 Ti (especially the higher one). I also tried to remove the Graphic card to plug the HDMI on the motherboad directly, but even like this the VGA LED is still on.

Any help will be very appreciated
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novaneithTopic starter

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« Reply #1 on: 07-December-18, 10:58:48 »

What does that mean...
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badboy2k

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« Reply #2 on: 07-December-18, 11:15:51 »

ok what Power Supply do you have?

are you connecting both PCI-E Power connections to your GPU?
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OS: Windows7 professional SP1 64bit (OEM)
Motherboard: MSI 790FX-GD70 (bios 1.17) AM3
Processor:AMD phenom IIx4 955 black edition 3.2GHz processor(Clock speed of 4GHz)
Cooler: corsair H100 cooler
Ram: 16GB Corsair Dominator DDR3 1600MHz ram (2 dual channel kits model: CMP8GX3M2A1600C9) (underclocked at 1333MHz)
GPU: 1: MSI R7870 -2GD5T/OC @ 1155mhz , 2: MSI R7850-Twin Frozer 2GD5/OC @ 925mhz
PSU: Thermaltake tougthpower 1500W (+12v1 20A, +12v2 20A, +12v3 40A, +12v4 40A) (+12v1=20+4 connector, +12v2=CPU power, +12v3=PCI_E connections, +12v4 = molex+sata+PCI_E connectors  )
Extras: 1 x 4 port raid card (model SIL3114) ASUS Xonar Essence STX sound card PCI-E X1.

novaneithTopic starter

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« Reply #3 on: 07-December-18, 11:23:53 »

I've a Corsair TX650M, and I'm connecting both an 8 pins and a 6 pins. But even without the GPU in the mix, the problem still the same, the computer won't work with i7-9700k GPU.

Edit: I'm thinking it might be a bios update issue. Since 9700k is pretty new, there might be a compatibility issue before updating the mobo.
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darkhawk

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« Reply #4 on: 08-December-18, 16:08:47 »

Try without the Gigabyte GPU installed. Use the on-board video instead.....
Just try it. 

All Z390 boards will support the 9xxx series CPU's without any BIOS updates out of the box.
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Name            Motherboard                                CPU                                              RAM                             GPU                                            
System 1MSI GS73VR-6RFIntel i7 6700HQ16GB DDR4NVidia GTX1060 6GB
System 2MSI X370 SLI PlusAMD Ryzen 5 1500X16GB DDR4R9 290X
System 3MSI Z390 Gaming Pro Carbon ACIntel i9 9900K16GB DDR4 @ 3600 MHz MSI GTX 1070Ti Armor OC
Monitor : MSI Optix MAG

badboy2k

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« Reply #5 on: 08-December-18, 16:58:34 »

Try without the Gigabyte GPU installed. Use the on-board video instead..... Just try it. All Z390 boards will support the 9xxx series CPU's without any BIOS updates out of the box.

they have said they have already tried it without the GPU and its doing the same thing. i'm thinking that either they have a CPU socket issue or a bad CPU on there hands.
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OS: Windows7 professional SP1 64bit (OEM)
Motherboard: MSI 790FX-GD70 (bios 1.17) AM3
Processor:AMD phenom IIx4 955 black edition 3.2GHz processor(Clock speed of 4GHz)
Cooler: corsair H100 cooler
Ram: 16GB Corsair Dominator DDR3 1600MHz ram (2 dual channel kits model: CMP8GX3M2A1600C9) (underclocked at 1333MHz)
GPU: 1: MSI R7870 -2GD5T/OC @ 1155mhz , 2: MSI R7850-Twin Frozer 2GD5/OC @ 925mhz
PSU: Thermaltake tougthpower 1500W (+12v1 20A, +12v2 20A, +12v3 40A, +12v4 40A) (+12v1=20+4 connector, +12v2=CPU power, +12v3=PCI_E connections, +12v4 = molex+sata+PCI_E connectors  )
Extras: 1 x 4 port raid card (model SIL3114) ASUS Xonar Essence STX sound card PCI-E X1.

frazled1

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« Reply #6 on: 09-December-18, 01:27:26 »

Have you tried going into Bios > settings > advanced and then enabling 'Above 4g memory/crypto currency mining'.

I had the same problem with my Z390 tomahawk not recognizing my 1060 gaming x 6G. The above sorted it out.
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