Gigabyte EX58A-UD3R (rev:1)

[cloneX]

Hi..this is a new build...having problems getting the computer to boot....no post screen & no bios.
The computer booted fine to bios....I installed & updated windows7Ultimate, which include GTX470 drivers & then left it turned on for 2 hours.
When I returned, the computer was inactive & the only indication it was on, was the 'clr_cmos' light on the  back panel.
I shut it down, by holding the power button down for 5 seconds
Then when I restarted it, the mobo lit up like the proverbial Christmas tree.....phase LEDs 2 green 2 yellow on...NB phase LEDs 1 green 1 yellow on...
SB voltage LEDs are showing red. There is no power to the optical drives. I removed each component for the same result each time...I also took all but 1 stick ram out & then tried with 2 & 3 sticks installed.
I read several similar posts & found a reference to this problem here which suggests manually setting the voltage from auto to 1·5v.
But it doesn't tell me how to get it to boot to bios so I can reset the voltage.
Gigabyte EX58A-UD3R (rev:1)    serial # is 10120020801
Intel core i7 930
Corsair H50 Liquid Cooling
Corsair HX-1000W CMPSU
Kingston 12GB DDR3 1333MHZ
Gigabyte NvidiaGTX470
Western Digital VelociRaptor 150GB
This board does not have the electrical noise problems that others are reporting.
Thanks.

[onemilimeter]

You mentioned that "The computer booted fine to bios". How did you do that? Did you press "DEL" during POST?

[cloneX]

Hi...thanks for your prompt reply.
As mentioned, this is a new build. I assembled the hardware, then started the computer which booted to bios fine...then I installed W7U....then the problems started.The computer will no longer boot to bios or post screen.

[onemilimeter]

Thanks for clarification.

You mentioned that "There is no power to optical drives". How do you confirm that? Have you measured the +12V and +5V of the 4-pin molex connector?

Is there any case fan in your system? If YES, does it work after you hit the power switch button?

Does the heat sink fan work after you hit the power switch button?

You may try to power up your system without the HDD first and see if you can see the POST text...

You may also consider to check if there is any "bent pin" in the CPU socket...

[cloneX]

"There is no power to optical drives".
The lights don't come on & the eject button doesn't work on either of the optical drives(the W7 disc is still in it)

Is there any case fan in your system? If YES, does it work after you hit the power switch button?
There are 5 case fans.....all spinning & lit up

Does the heat sink fan work after you hit the power switch button?
The radiator cooling fan on the corsair H50 liqiud cpu cooler is spinning

You may try to power up your system without the HDD first and see if you can see the POST text...
I tried this again, both HDDs disconnected(power & mobo) I removed each component for the same result each time...I also tried with 1, 2 & 3 sticks of ram installed in single, dual & tripple channel array.
There are no bent pins on the cpu.

[Dark Mantis]

Firstly I would advise you to remove the serial number from your post.
Secondly it sounds like it could be an overheat problem, did you remember to use the thermal paste on the CPU/H50 pump? Have you checked the the H50 pump is attached properly still(quite a common problem especially with the stock coolers)?
Don't worry about the motherboard lighting up like a christmas tree, that is perfectly normal. Do the lights go out after a while?

[cloneX]

Hi....yes, the thermal paste was pre-applied when I installed it.....when I checked for bent pins I re-applied arctic silver 5.
the H50 cooler is properly installed....I had this computer running for at least a couple of hours during which, I installed Windows7 Ultimate....I then updated through auto-update.....these updates which included drivers for the GTX470, downloaded & installed successfully. There were no flashing or solid LEDs apparent on the mobo throught the hardware or software instalation. I have only allowed it to run for 30 seconds so Ican't tell you if the lights go out eventually or not. I read a post here, that these boards take 15-20 seconds to display the post screen so I gave it 30.

[Dark Mantis]

I recommend that you remove half of your memory( I am guessing that you have filled all the slots) and then test it.
I would say the next stage is to remove all the cables from the motherboard and check to make sure that are making a good connection as you replace them. I would also leave it for longer than 30 seconds as it could be that the BIOS is looking for a floppy drive or similar that should have been disabled.

[cloneX]

I also tried with 1, 2 & 3 sticks of ram installed in single, dual & triple channel array.
thanks.... I will pull it down tomorrow & start again

[Dark Mantis]

Check the cables(both power and data) to the drives also. Make sure that you have installed the 12v power leads to the CPU.
By the way have you made an error in the board number? Did you mean GA-X58A-UD3R?

[cloneX]

Board description is wrong, I did mean the GA-X58A-UD3R (rev:1)
I will check the cables too....thanks.
System drive is connected to sata0 & storage drive to sata1 with a Lian-Li 4 in one blue cable.
Primary optical drive is on sata3 & secondary optical drive is on sata4 with yellow sata cables.....all are new.
I can't find the edit button to remove the serial # from the first post....any ideas please?

[Dark Mantis]

The chance to modify your post goes after (I think) four hours. I am afraid the only moderator who has the power to edit posts is on holiday for a couple of weeks. I took it that it was just a typo for the model number. I am not familiar with the Lian-Li 4 in1 cable but as long as you are happy with it hopefully it should be fine.

[cloneX]

http://www.pccasegear.com/index.php?main_page=product_info&cPath=19_104&products_id=13461


Its just 4 sata cables of varying length in one sleeve.

[Dark Mantis]

Yes, thanks fore clarifying that but I guessed that was pretty much what you were talking about.

[onemilimeter]

Have you ever tried the following option: reset the BIOS? You may find how to reset the BIOS in the user manual.