Asus Sabertooth Z87 + Intel i7 4790k= Red CPU LED

Cooljak96

Reputable
Jul 13, 2014
2
0
4,510
Hello,

I am doing my first ever PC build with a Asus Sabertooth Z87 and an Intel i7 4790k CPU. I have been messing around with it all night, but I can't seem to get the CPU LED to turn off. I have tried a bunch of steps that I read online such as:

1. Unplugging everything and plugging it back in

2. Taking the Motherboard, CPU, power and testing them just sitting out (both with and without CPU fan plugged in)

3. Alternating RAM sticks

4. Checking to make sure there are no pins bent on the CPU or socket itself

5. Both the 24 pin as well as the 8 pin power cord are plugged into the motherboard

Some thing to note: All the fans start spinning like normal. Not sure if that makes a difference or not.

I can't think or find any new steps to take for this issue. Any advice is appreciated.

(I may have tried to other troubleshooting steps, but its late and I'm tired so I may have forgotten them all).

Thanks!
 
Solution
On most ASUS boards (including the Z87), you can replace the chip itself. You will not be able to boot to the BIOS or desktop until either a) A supported CPU is installed, or b) The bios chip is replaced with a chip that has been flashed to the latest BIOS version.

ODST120

Reputable
May 3, 2014
119
0
4,710
The board is probably running an older BIOS. According to ASUS, the 4790k isn't supported until BIOS revision 2003. There should be a sticker somewhere indicating the BIOS version. If the BIOS is outdated, you can either order a new BIOS chip on ebay (15ish) or get a cheap celeron to boot and flash the BIOS with.
 

Cooljak96

Reputable
Jul 13, 2014
2
0
4,510


Ok, I tried looking up steps on how to do this, however it all shows selecting stuff on the monitor. I have no video displaying on my monitor either, so I am unable to select anything on the screen that may been needed.
 

ODST120

Reputable
May 3, 2014
119
0
4,710
On most ASUS boards (including the Z87), you can replace the chip itself. You will not be able to boot to the BIOS or desktop until either a) A supported CPU is installed, or b) The bios chip is replaced with a chip that has been flashed to the latest BIOS version.
 
Solution