crosshair V formula Z won't power up

[Christine]

I bought a Crosshair V Formula Z motherboard, an AMDFX8320 cpu, Corsair Vengeance Black 2400 DDR3 memory, a Corsair TX 650 power supply. I assembled the things, and when I switch on the power supply, lights on the board go on, as does a red line, but the fans don't. When I press start, or the power button, nothing happens, fans don't turn on. The memory is 2x8gb, I put it in the red memory slots. There's no beeps at all when I press the power button.

The cpu cooler has one fan, I connected it to the output that says "CPU FAN". All housing fans are connected to outputs marked "CHA FAN".

Is this combination of board and cpu supposed to work out of the box? Or should I flash the board via the cable? Is there a linux version of the ROG flashing software?

[Christine]

skellattarr wrote:
when you mounted your board to the case did you use the stand offs? my brother made that mistake.

Yes, I did.

[BeepBeep2]

Christine wrote:
I bought a Crosshair V Formula Z motherboard, an AMDFX8320 cpu, Corsair Vengeance Black 2400 DDR3 memory, a Corsair TX 650 power supply. I assembled the things, and when I switch on the power supply, lights on the board go on, as does a red line, but the fans don't. When I press start, or the power button, nothing happens, fans don't turn on. The memory is 2x8gb, I put it in the red memory slots. There's no beeps at all when I press the power button.

The cpu cooler has one fan, I connected it to the output that says "CPU FAN". All housing fans are connected to outputs marked "CHA FAN".

Is this combination of board and cpu supposed to work out of the box? Or should I flash the board via the cable? Is there a linux version of the ROG flashing software?

Hello 🙂

Is there a code displayed on the POST CODE/Debug LED? Also, near the ATX 24-pin power connector, is a light on? Which one is it? The lights are labled ie. "CPU_LED, DRAM_LED, VGA_LED" etc.

Your board has low-level support for the FX-8320 right out of the box - at the very least it should run no matter what BIOS is installed. If the board does not POST as-is, then a BIOS update will probably not fix the issue. Any board with a Bulldozer (AM3+) compatible BIOS will run Piledriver-based (Vishera) CPUs including 890FX boards with their BETA BIOSes.

If the CPU FAN and other case fans are plugged in and do not spin when you press the power button, or spin for only a split second, there may be an electrical issue related to the motherboard and/or PSU. Check to make sure you used the standoffs provided with your case to raise the motherboard off of the tray, and that you are using a known good PSU. In this case there would be an electrical short somewhere in the system that needs to be corrected or a part(s) are faulty.

[Christine]

BeepBeep2 wrote:

If the CPU FAN and other case fans are plugged in and do not spin when you press the power button, or spin for only a split second, there may be an electrical issue related to the motherboard and/or PSU.

That's what I would think, and you're right 🙂
There's a 4pin connector on the board. My previous boards had that, and I connected the four pin cable from the PSU to that connector. The psu I have now doesn't have that 4pin cable, so I used an 8 pin cable with two connections bent away and two hanging over. Removing that connection made the board start.
Now, can I leave that 4pin connector just unplugged, or which cable do I use to connect it? The PSU is a Corsair TX650, which should do for this board, shouldn't it? But it doesn't have the 4pin cable...

[Chino]

Connect the EPS (4+4 pin) cable from your PSU to the 8 pin 12V connector since that is the primary power connector. The other 4 pin connector is an auxiliary power connector which means it's optional. It's supposed to give the motherboard more juice. You won't need it unless you're doing some hardcore overclocking.

[Area_66]

the Corsair TX650 as 1 x 8 pins connector that can be split in 2 x 4 pins. this is the one you connect on the 8 pins, you don't connect anything on the 4 pins connectors, now the Corsair TX650 don't have an extra 4 pins, the 2 others cable have 6 pins + a 2 pins hanging, , those are for the Video Card only.

[Christine]

Area 66 wrote:
the Corsair TX650 as 1 x 8 pins connector that can be split in 2 x 4 pins. this is the one you connect on the 8 pins, you don't connect anything on the 4 pins connectors, now the Corsair TX650 don't have an extra 4 pins, the 2 others cable have 6 pins + a 2 pins hanging, , those are for the Video Card only.

ok, thanks. I'll leave the 24 pin and 8pin cables connected, I'll remove both 4pin connectors.

[Area_66]

yes, especially that your Power supply don't have extra 4 pins.

[Christine]

I guess I'll flash a new bios anyway. The "CPU support list" on the crosshair page appears to be unreachable from Europe, but I assume that the link there just links me to the latest bios for my motherboard? Or is the bios different for different CPU's?

[chrsplmr]

http://support.asus.com/cpusupport/cpu_support_right_detail_mkt.aspx?SLanguage=en&p=1&m=Crosshair V Formula-Z&cpu=FX-8320(FD8320FRW8KHK,3.5GHz,8C,125W,rev.C0,AM3+)&pcb=ALL&sincebios=0806&memo=

I dont know if this helps ... i tried copying this every way I could figure ..
it takes you to the latest bios download page ... hopefully ...

[Christine]

Guys, thanks for the help! The computer works fine 🙂

Now, suppose I do want to overclock, is there a way to connect this additional 4pin connector? Or do I need another psu?