GA-Z97X-UD5H Wont Power UP with more than 2 HDD's?

[BauerD]

I cant get this board to power up and boot with more than 2 drives attached. I have 2 SSD's and 2 WD 1 T byte drives. Can only power up and boot with the SSD'S, when I add even 1 of the WD HDD it wont power up. It just powers itself off again. Is there a bios setting to correct this?
                    Thanks for any help.

[grandtheft]

Hi,

Have you upgraded you BIOS to the lastest Version?

Check this version F7

http://www.gigabyte.com/products/product-page.aspx?pid=4950&dl=1&RWD=0#bios

Hope it helps

[shadowsports]

BauerD,
We are going to need some more information.

What ports are your devices connected to?  When it works, when it doesn't?

Troubleshooting steps you've performed? 

What is the brand/model of your PSU?

Please include your complete system specs and BIOS rev.

[BauerD]

I am on F7 bios, intel i7-4771 processor, using onboard graphics,G.Skill TridentX,2X8Gig memory. Win 8.1 OS on Samsung SSD 840 EVO 1TB drive and a Samsung 840 256 gb SSD and trying to use 2 1TB WD Caviar Black drives, CoolerMaster 850W power. In my previous system all 4 drives were powered up at the same time. Have been trying various BIOS settings, updated to F7 bios from F4, still same result. I can add the other drives after booting and they will operate ok, I have ACHI on. Then after shutdown and rebooting ,it wont power up until I unplug the WD drives.

[BauerD]

I found I have to hold the power on button for 7-10 sec. then it will power on and boot normally, is it checking something while doing this?
Maybe a bios setting. the bios seems pretty flaky, dont always see the same thing in bios.

[absic]

Have you tried the F8b beta BIOS that was released the other day and is available over at TweakTown? http://forums.tweaktown.com/gigabyte/28441-gigabyte-latest-beta-bios.html

[BauerD]

I flashed F8B and I am using sw 2 for backup BIOS and it seems stable so far. I tried to find the listing of changes for F8B and could not find any explanation for it. When I flash with SW 2 is both bios updated or only the backup bios? When I try to boot on SW1 it is all flakey again. So far SW2 is stable enough to use.
            Thanks

[absic]

My understanding is that you need to put the BIOS switch to the appropriate BIOS chip that you want to flash.

So, if you flashed with the BIOS switch set at SW2 and it is OK then put the switch to SW1 and flash that chip with the same BIOS.

[ac]

Sounds like a power supply issue.  If your computer turns on, and then a second later it powers down,  it is your power supply. Your power supply is either too small, old, has an internal problem, a connection is shorted,  can be your power supply is over heating due to insufficient cooling, or overloaded.

A drive can also be bad activating the overload protection in your power supply.