Asus P8Z68-V not detecting on-board graphics adapter

etmh · 19 Feb 2018 at 17:42

I'm trying to get my Asus P8Z68-V motherboard working with a monitor connected to the built-in DVI connector.

It's booting successfully using a PCI-E graphics card attached, but without I'm getting a beepcode (long-short-short-short) and VGA_LED is remaining lit (and BOOT_DEVICE_LED).

The processor is a 2500K (also tried 2600K).

I can't find in the BIOS settings anywhere to enable/disable the igpu, only an option to switch the primary graphics adapter (PCI/PCI-E). I have reset the CMOS via the jumper.

Just hoping that someone can give me some suggestions on what to try.

Orcvader · 20 Feb 2018 at 21:16

When you have the discrete GPU attached, have you tried installing Windows and see if you can see the Intel IGP on there? Maybe even try a second screen going off it to see if it works?

etmh · 20 Feb 2018 at 21:29

Orcvader said:
When you have the discrete GPU attached, have you tried installing Windows and see if you can see the Intel IGP on there? Maybe even try a second screen going off it to see if it works?

With the graphics card attached, I can boot into Windows but only the discrete graphics shows up in device manager and there is no signal on the motherboard's DVI socket.

Orcvader · 20 Feb 2018 at 21:57

etmh said:
With the graphics card attached, I can boot into Windows but only the discrete graphics shows up in device manager and there is no signal on the motherboard's DVI socket.

In the BIOS, under Advanced -> System Agent Configuration, make sure IGP Multi-Monitor is enabled. I'm not sure if Render Standby needs to be enabled too, the options are different from my old Gigabyte Z68 board.

etmh · 20 Feb 2018 at 22:00

It's within System Agent Configuration that I get the option to select the primary adapter, but only PCI and PCIe are available.

Orcvader · 20 Feb 2018 at 22:20

Have you tried enabling IGP multi-monitor though? That should be the option that will allow the IGP to be enabled when you have a discrete GPU plugged in, allowing you to see both in device manager.

etmh · 21 Feb 2018 at 08:46

I can see in the manual (Section 3.5.2) it shows the following:
System Agent Configuration
Advanced
Initiate Graphic Adapter [iGPU] [PCI/iGPU] [PCI/PCIE] [PCIE/PCI]
iGPU Memory [32M] [64M] [96M] [128M]
Render Standy [Disabled] [Enabled]
iGPU Multi-Monitor [Disabled] [Enabled]

However, I can only see the following:

System Agent Configuration
Advanced
Memory Remap Feature [Disabled] [Enabled]
Graphics Configuration [AUTO] [PCIE] [PCI]

There is simply no mention of iGPU underneath System Agent Configuration.

Orcvader · 21 Feb 2018 at 11:06

Are you on the latest BIOS version?

etmh · 21 Feb 2018 at 11:16

I've tried rolling back to the last few versions, and am currently on the latest version.

Redek · 21 Feb 2018 at 16:32

Has the board seen much use? I've heard a few months ago now that quite a few of these had started to fail.

etmh · 21 Feb 2018 at 16:40

Not a major amount of usage, as I tend to use my laptop more for day-to-day stuff. There's not sign of damage to any of the capacitors on the board, which I'd guess is the primary cause of failure.

etmh · 22 Feb 2018 at 18:56

Just had opportunity to test the processor on another motherboard, and can confirm that the integrated graphics work fine.

pandem0nium · 23 Feb 2018 at 12:48

Do you have anything plugged into the PCIe slots that use lanes from the cpu?

etmh · 23 Feb 2018 at 13:08

I just have the CPU, RAM and a hard-drive.

spolsh · 23 Feb 2018 at 18:08

Can you try with the onboard HDMI to see if that works. (or even VGA). Might just be the DVI connection that's duff ?

etmh · 24 Feb 2018 at 12:55

Nothing from the HDMI either, unfortunately.

etmh · 20 Mar 2018 at 22:32

A quick update on this, as I've finally got the integrated graphics working again after downgrading to an earlier bios version.

I'd tried this before on a couple of occasions, but it seems that I never successfully managed to flash the ME region back to the earlier version (using afudos and bupdater). With an earlier bios, I did get the iGPU options back.

Vladimir deura · 24 Apr 2022 at 13:56

Hi etmh, i have an exactly same problem as you, and can you write how you manage to get IGP working? In details

Tetras · 24 Apr 2022 at 14:33

Vladimir deura said:
Hi etmh, i have an exactly same problem as you, and can you write how you manage to get IGP working? In details

This was a long time ago, so etmh probably won't reply. My understanding is that a 'normal' BIOS flash through the manufacturer tools often does not update the ME (a partial flash), so third party tools were used to flash the bios.

Vladimir deura · 25 Apr 2022 at 07:48

OK. Thanks for respond