PC build stuck in infinite boot loop.

[Summeraude]

This build was bought in the summer of 2016 and has always had this issue. Build was sent back once to be checked out by Overclockers UK (where it was bought) to diagnose it and they said the only issue was RAM incompatibility, new ram was bought that was compatible but the same problem remained. Trying to find the problem STILL.

 

Problem:

PC gets stuck in a boot loop and has never gotten to post. Most of the time I don't get a beep code but sometimes it will give 5 long beeps.

Specs of the build:

• Mobo: Gigabyte ga z170n-wifi rev1

• CPU: Intel i5-6400

• RAM: 2x Ballistix Sport LT White 4GB DDR4-2666 (BLS4G4D26BFSC)

• PSU: Corsair SF450

• GPU: Zotac GTX 1060 AMP! Edition

• Storage: Samsung SSD

I have done all of the following steps so far:

• Tested the RAM in every possible configuration (both slots, each stick in either slot)

• Checked for bent pins (none found)

• Checked if the CPU was properly seated

• Bios reset

• CPU power connector in different connectors on the PSU (3 of the same connectors for PCIE power and CPU power)

• Forcing backup bios

• With and without GPU

• With and without SSD

Most of these resulted in bootlooping without beeps, sometimes I would get 5 long beeps.

One of the problems is also that Gigabyte doesn't even list 5 long beeps on their BIOS beep code page and googling it gives all kinds of different results as to what that can mean.

Hope someone here can help with identifying the issue.

[Levent]

Do you have an aftermarket cpu cooler? IIRC 5 long beeps is either RAM or CPU error code. 

[Summeraude]

2 minutes ago, Levent said:

Do you have an aftermarket cpu cooler? IIRC 5 long beeps is either RAM or CPU error code. 

No, I'm using the stock intel cooler, although I have an NZXT X31 Kraken water cooling system, but it is not in use currently. 

[Levent]

3 minutes ago, Summeraude said:

No, I'm using the stock intel cooler, although I have an NZXT X31 Kraken water cooling system, but it is not in use currently. 

I would suggest you to remove/disconnect everything but motherboard cpu and just 1 stick of ram. Clear cmos couple of times, if that doesnt work try reseating the cpu until it boots (dont even worry about thermal paste at this point, just dont wipe it off). Also if you have another computer that you can steal parts off (or just spare DDR4 ram that is known to work) to test this one, let us know.

[piemadd]

@Summeraude if you have good eyes or a magnifying glass, i would see if any of the traces on the mobo around the ram are screwed up in some way. I would also make sure there isn't anything stuck in your ram slot