No sign of life when hard drives installed

[pyrotechnic]

I came home after work one day to find that I could not bring my computer out of sleep mode so I had to do a force reboot by holding the power button. After this, I would only get a split second of fan movement then nothing. It wouldn't even make it to POST.
After a few months of replacing pretty much everything, I discovered that I could get it to boot to the BIOS, but only when there is not hard drive of any kind plugged into it. As soon as I plug any drive in I get the same issue.
No beep codes because it won't make it far enough.

Below are the steps i have done.
1. I immediately thought it was the PSU, so i purchased a new one and switched it over. No luck, returned it.
2. Next i purchased a new mobo and switched it over. No luck.
3. I tested the RAM individually and confirmed that they were in the correct slots. No luck.
4. I replaced the CPU with a new one. No luck.
5. I verified that the only standoffs touching the board are the ones holding it to the case.
6. I removed the GPU and no change.
7. Verified that the power connectors are fully connected. To the GPU (both), the 16 pin to the board, and the 8 pin CPU connector.
8. I've tried the SSD and the HDD individually, and in each slot.
9. I've tried temporarily installing a known working SSD.

I'm out of ideas, and am to the point of desperation.


Below are the components in the build, none of which are more than a few months old.
PSU:
EVGA SuperNOVA 750 G2 80+ GOLD, 750W ECO Mode Fully Modular

Motherboard:
MSI Computer ATX DDR3 2600 LGA 1150 Z97S SLI KRAIT EDITION

RAM:
Kingston HyperX FURY 16GB Kit (2x8GB) 1866MHz DDR3 CL10 DIMM - Black

GPU:
EVGA GeForce GTX 970 4GB SSC Gaming ACX 2.0+

HDD:
WD Black 1TB

SSD:
Samsung 850 EVO 250GB

CPU:
Intel I7-4790k

Case: Corsair Carbide Series Air 540

 

[MeanMachine41]

I suspect bent pins in the CPU socket. Intel MBs are notorious for this due to uneven or excessive tightening of the hold down bracket.
You will have to carefully examine the socket with a magnifying glass. If bent pins are found you can carefully straighten them with a toothpick.

Although this is no guarantee to solve your issue. It will have to be checked and at the same time, benchtest outside your case prior to re-assy

 

[smorizio]

if the power supply died badly it may have killed the mb and cpu. i dont know if all those parts are new or still the old ones. if there still the old ones buy a post it card. pull the gpu and one stick of ram and no drives see if the mb posts fine. then put a drive in if the mb locks up and it shows on the post it card. may have bad chipset on the mb or drive that shorting out the mb. if the power supply is stil lthe old one. have someone test all of the plugs outputs if the harddrive ones are above 12v they may be burning out the drives.

 

[pyrotechnic]

I suspect bent pins in the CPU socket. Intel MBs are notorious for this due to uneven or excessive tightening of the hold down bracket.
You will have to carefully examine the socket with a magnifying glass. If bent pins are found you can carefully straighten them with a toothpick.

Although this is no guarantee to solve your issue. It will have to be checked and at the same time, benchtest outside your case prior to re-assy

Thanks for the reply. There are no bent pens on either motherboard cpu socket. Also, there shouldn't be a need to breadboard again since we know that the issue only happens when a hard drive is installed

 

[Plumboby]

be probly ur hdd or ur bootind media format

 

[pyrotechnic]

be probly ur hdd or ur bootind media format

The issue is consistent with the HDD, SSD, as well as with a known working SSD.

 

[pyrotechnic]

Quick update, The Socket has no bent pens. Also, in the BIOS I can change the boot order, but it's impossible to select a drive that isn't installed.

Thanks for the input guys!