Siren on Intel motherboard

[BrianC]

I have just assembled the following components for a new computer,
Intel mobo D975XBX2
Intel QX6700 CPU
Corsair RAM
Thermalright CPU heatsink with fan with thermal compound
eVGA nVidia graphics (PCIe)
CoolerMaster Stacker chassis
2 x Turbocoll 510 W PSU
HDD, FDD, DVD, sound card

When I urn on the PSUs the power LED on the mobo and sound card light up.

When I hit the on switch there is instantly a continuous, high pitched wail. No display to screen, no power LED. The wail stops as I turn off the PSU to the mobo.

The Intel mobo product guide mentions
Siren - Processor overheat (on reboot)
but I cannot find any reference to this on the Intel support site.

Any and all help will be very much appreciated.

[newbuilder14]

Why do you have two power supplies? You really just need one.

Make sure you correctly installed the heatsink fan, and try one memory stick at a time.

Reference: http://forum.pcmech.com/showthread.php?t=132409

[BrianC]

I used 2 PSUs because I was repairing / upgrading another computer so had a 510 W PSU available and the config requires more than 510W.

The fans work fine (chassis and CPU heat sink)

The instructions for the mobo cover installing 2, 3 or 4 memory sticks but not 1.

[Mr.Ferrari]

Hold on here, how exactly did you go about doing dual psu? Did you do a wire mod internally on the psu or did you make a dual relay (master/slave) adapter to connect them?

[BrianC]

You were onthe right track Mr. Ferrari. The chassis manufacturer provides a special connector for dual PSU installations and I had forgotten to install it. With that in place, both PSUs turn on and the set up works. I have a clean POST, next stop is OS installation.