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GA-Z87X-UD5H & I7 4790K - Boot Loop

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Hey

I recently built my first hackintosh but have run into problems trying to get the thing to boot up. Every time I power up the fans start spinning on the CPU and my monitor starts getting a signal but after 3/5seconds it shorts out, then this repeats until I power off the PSU. As the it has dual BIOS I can see in between resets that it's switching between the 2, after switching to single BIOS it will constantly run with power but no display, monitor acts the same way, receives signal but seems to lose it before a picture appears.

Here's a list of things I've tried in terms of trouble shooting.
  • Removed all but one stick of RAM, tested in each slot, then changed RAM and tried each slot again.
  • Removed from case to see if any metal was shorting the MB.
  • Removed H100i and replaced with stock cooler.
  • Removed GPU.
  • Reset CMOS.
  • Tested wall sockets.
It's currently sat on the MB box with only the CPU, Stock CPU Fan, 1 RAM Stick, 12pin/8pin power connected with the same result.

Searching on google and various forums I found that possibly the BIOS version is not compatible with my CPU, obviously without being able to get into the bios I have no idea what it shipped with. When I check Gigabytes website for compatibility it states F9 to work with I7 4790k, with the update being realised 19/03/2014, seeing as I bought the MB 3/4 weeks I would assume it comes pre-load with that.

Asking for any help someone might be able to give, I've read that if I purchase a cheap CPU I might be able to get into BIOS, update it, then reinstall my 4790K. If there was any chance of avoiding this I'd obviously prefer that.

Being my first ever computer build I'm not sure if I'm missing something very obvious, or if my naivety as lead me to build a collection of expensive parts that don't work together.

Any help would be greatly appreciated. Thanks!

Specs -
  • Gigabyte Z87X-UD5H
  • Intel I7 4790K
  • Curcial Ballistix Sport 2x4gb
  • Corsair RM850
  • Gigabyte GTX780
 
Hey

I recently built my first hackintosh but have run into problems trying to get the thing to boot up. Every time I power up the fans start spinning on the CPU and my monitor starts getting a signal but after 3/5seconds it shorts out, then this repeats until I power off the PSU. As the it has dual BIOS I can see in between resets that it's switching between the 2, after switching to single BIOS it will constantly run with power but no display, monitor acts the same way, receives signal but seems to lose it before a picture appears.

Here's a list of things I've tried in terms of trouble shooting.
  • Removed all but one stick of RAM, tested in each slot, then changed RAM and tried each slot again.
  • Removed from case to see if any metal was shorting the MB.
  • Removed H100i and replaced with stock cooler.
  • Removed GPU.
  • Reset CMOS.
  • Tested wall sockets.
It's currently sat on the MB box with only the CPU, Stock CPU Fan, 1 RAM Stick, 12pin/8pin power connected with the same result.

Searching on google and various forums I found that possibly the BIOS version is not compatible with my CPU, obviously without being able to get into the bios I have no idea what it shipped with. When I check Gigabytes website for compatibility it states F9 to work with I7 4790k, with the update being realised 19/03/2014, seeing as I bought the MB 3/4 weeks I would assume it comes pre-load with that.

Asking for any help someone might be able to give, I've read that if I purchase a cheap CPU I might be able to get into BIOS, update it, then reinstall my 4790K. If there was any chance of avoiding this I'd obviously prefer that.

Being my first ever computer build I'm not sure if I'm missing something very obvious, or if my naivety as lead me to build a collection of expensive parts that don't work together.

Any help would be greatly appreciated. Thanks!

Specs -
  • Gigabyte Z87X-UD5H
  • Intel I7 4790K
  • Curcial Ballistix Sport 2x4gb
  • Corsair RM850
  • Gigabyte GTX780

If you cannot get in to the BIOS then you have a problem. Use a cheap socket 1050 Celeron/Pentium processor to update the UEFI/BIOS. Change board to a Z97 model or take the computer to a computer repair centre to get them to do the UEFI?BIOS update.

The Gigabyte boards have a dual bios system (you have a spare backup but it will be on the same bios setting that it had when it left the factory. For that reason alone I would go with a Z97 board or buy and keep a cheap celeron chip in case the first BIOS goes down rendering the whole machine unusable until the BIOS is again updated.
 
Thanks a lot of the reply, I've already ordered a cheap celeron to see if I can update from there, if not hopefully I can return it.

Unfortunately when I bought my MoBo the buyers guide was still recommending the Z87 series, now I've found the Z97x-UD5H at a much cheaper price than the Z87. Not too sure on how amazon sellers are about accepting returned MoBos after they've been fitted and tested, fingers crossed I can do a straight swap.

Thanks a lot again.
 
Hey Dmart i got the exact same situation. GA-Z87X-UD5H with I7 4790K; boot loop with dual bios and black screen on one bios. Did you found a solution? i'm a bit clueless atm :confused:
 
Hey Dmart i got the exact same situation. GA-Z87X-UD5H with I7 4790K; boot loop with dual bios and black screen on one bios. Did you found a solution? i'm a bit clueless atm :confused:


The i7-4790K processor is supported when F9 or above UEFI BIOS is used on the GA-Z87X-UD5H board
http://www.gigabyte.com/support-downloads/cpu-support-popup.aspx?pid=4483
http://www.gigabyte.com/products/product-page.aspx?pid=4483#bios

Update Guide:
http://www.tonymacx86.com/bios-uefi/131047-how-update-your-gigabyte-motherboards-bios.html
 
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