Help! No display new PC! ):

[Spifro]

Hello All! So, I've recently decided to construct a PC very similar to Linus' "Ultimate Surround PC Build Guide". Here are the specs:

 

Processor: Intel Core i7-4790k

Motherboard: ASUS Sabertooth Z97 Mark 1

GPU(s): (x2) Sapphire R9 290 Vapor-X

RAM: 16 GB Corsair Vengeance Pro

SSD: Samsung Evo 500GB

HDD: Western Digital Black 3TB

CPU Cooler: Corsair H100i GTX

PSU: Corsair HX1000i  (1000W)

Case: NZXT H440

 

Before starting the build, I attempted to post, using only the MOBO and one stick of ram (8GB). After a few failed attempts it finally decided to work and so I began the actual build. I am fairly certain all of my connections are sturdy and all the piece are set correctly, and everything seems to power up just fine. However, when i attempt to boot up the system, there is no display! I attempted to use both the HDMI and Display Port output, and neither of them worked! Seems like I can't even access the BIOS! I would really appreciate some assistance with this, as it is my first build and it did cost me quite some money, not to mention the time and effort that went into this beauty. I would be eternally grateful for anyone who can help me solve this! Thank you all in advance.

 

[blu4]

Try using only one GPU to boot.

[The Core 2 Quad Runner]

Use 1 GPU, and the DVI port. Sometimes the GPUs can be a little shaky when it comes to that.

[cookie17]

Take out the two cards and run the monitor off the mobo's HDMI/DP

 

do what this guy said, i've had this problem back in 2013 when i built my pc with a gtx 760TI

 

after removing my gpu it worked fine, just put your gpu's back in when your done installing your pc.

[Spifro]

Alright! With all your guys help I was able to access the BIOS and am currently installing windows! I don't have either of my GPUs installed yet so I'm hoping I can just pop those right in once the OS is installed and then download the drivers and everything should be fine. But I will let you guys know if I can't.

[Spifro]

Okay, so I've gone ahead and installed Windows, rebooted, and plugged in both GPUs. System won't boot again. What do I do now? ):

[Spifro]

It won't display with either gpu, but it does when I don't have any of them set up

[Spifro]

Okay wait, I may have made a mistake. I was trying to use the display port from the mobo instead of the gpu. It seems to be working with one so far, gonna try both of them now