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GA-Z68AP-D3 wont boot headless, endless power cycle

GA-Z68AP-D3 wont boot headless, endless power cycle
« on: December 02, 2011, 09:58:42 pm »
Cannot seem to get the machine to boot headless (w/o monitor connected), box cycles every 20 seconds or so. No POST beeps.
Contacted support asking if there was a specific setting in the bios that would control this.
"Bios is plug n play, No setting.  Verify all hardware installed correctly" was the answer I received.
Any pointers, hints, solutions would be greatly appreciated.
Having gone through two operating systems now, attempting to debug the issue I've come to the conclusion it is not the operating system.
CenOS 6.0 (wont boot without monitor)
VMWare ESXi 5.0 (wont boot without monitor)


This is intended to be a VM development bed, as such it has no additional cards. Simply motherboard utilizing onboard graphics card, Sata 2tb, cdrom, 16GB Ram, i5 proc, 500w PS

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Model Name : GA-Z68AP-D3(rev. 1.0)
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M/B Rev : 1.0
BIOS Ver : F4
Serial No. : SN114200024866
Purchase Dealer : Micro Center
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VGA Brand : GIGABYTE (onboard)      Model :
CPU Brand : Intel      Model : CI5 2500K      Speed :
Operation System : Linux      SP :
Memory Brand :       Type :
Memory Size :       Speed :
Power Supply : W

Fatman

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Re: GA-Z68AP-D3 wont boot headless, endless power cycle
« Reply #1 on: December 02, 2011, 11:31:17 pm »
Have you tried resetting the bios the load optimised default? Check in the bios and make sure your ram voltages are correct and also that the machine is set for onboard graphics aswell
Did you put this machine together yourself. Try all connections and make sure they are all seated home firmly. Do you know someone with a stronger power supply? It could be that?
« Last Edit: December 02, 2011, 11:39:55 pm by Fatman »

Re: GA-Z68AP-D3 wont boot headless, endless power cycle
« Reply #2 on: December 03, 2011, 12:07:07 am »
Thank you for your quick reply

Have you tried resetting the bios the load optimised default? Check in the bios and make sure your ram voltages are correct and also that the machine is set for onboard graphics aswell

optimised settings had no effect. tried that before posting.
bios has Auto set for all voltages. I will go back into the box after posting this to verify voltage settings.
Advanced Bios Features => Init Display First (changed from Auto to Onboard) - no effect
Advanced Bios Features => Onboard VGA (changed from Auto to Alwas Enable - no effect

Did you put this machine together yourself. Try all connections and make sure they are all seated home firmly. Do you know someone with a stronger power supply? It could be that?

I did put the machine together myself. All the connections have been verified by a service center as part of the purchase. It was only after this checkup that I found that the system would not boot headless.

Please note that the system has an operating system on it now, VMWare ESXi 5.0. As long as the monitor is connected I can get the OS up.
Please correct me if I'm wrong but even that would fail if (a) ram voltages were incorrect and / or (b) power supply were insufficient?

Dark Mantis

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    • Dark Mantis
Re: GA-Z68AP-D3 wont boot headless, endless power cycle
« Reply #3 on: December 03, 2011, 08:11:42 am »
The inclusion of a monitor should have no bearing at all on the power supply requirements or the memory .  I would suggest trying it with a Windows OS installed, not that it should make any difference but just that you are likely to get more help as people are more used to that OS than what you are currently trying to use.

I can't think why it should not boot ok without a monitor attached as I am sure mine does, or at least with them switched off.

Perhaps if you could give us a complete list of your hardware we could get somewhere a little bit closer.
« Last Edit: December 03, 2011, 09:10:33 am by Dark Mantis »
Gigabyte X58A-UD7
i7 920
Dominators 1600 x6 12GB
6970 2GB
HX850
256GB SSD, Sam 1TB, WDB320GB
Blu-Ray
HAF 932

Gigabyte Z68X-UD5-B3
i7 3770K
Vengeance 1600 16GB
6950 2GB
HCP1200W
Revo Drive x2, 1.5TB WDB RAID0
16x DLRW
StrikeX S7
Full water cooling
3 x 27" Iiy

teknology9

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Re: GA-Z68AP-D3 wont boot headless, endless power cycle
« Reply #4 on: December 03, 2011, 09:11:09 am »
Hi,

Do your H/W specifications match this...see link below:

http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1003661


Teknology9
Windows 11Home Edition
NZXT Phantom
Seasonic Platinum 1000w
Noctua NH-U12P SE2
Corsair 16GB 3200
Gigabyte B550 Aorus Elite V2 Rev 1.5
MSI GeForce GTX 1650 D6 Gaming X 4G
Ryzen 5 5600
Samsung 970 Evo Plus - 250GB
Samsung 830 SSD - 250GB
PC building.........it's no fun if it's easy!!!