Dual Xeon E5-2687W PSU restarting issues

[nightwoodwolf]

Hey guys,

my computer started restarting suddenly since one week ago now while rendering using 3D applications, the problems occurs when the system is fully used with all of its power .. i tested all the parts ram, HDDs, SSDs and Video Card all seems to be working good .... i am currently using PSU from my previous rig, which is Antec Truepower Quattro 1200w power supply ... feeding everything to separate +12 rail ( card to one rail, fans to one rail, mobo to another ... etc )

so i am thinking it might be my PSU since it is 3 years old, it has six dimensioned +12V rails with 38A each which is why i kept it and using it with the current pc, it should be great for dual Xeon build !! , however i'm thinking i might be having some issues with the psu after using for it that long ... efficiency dropping or something !!!

any idea ? if you guys thinking the psu might be the issue as i do .. what PSU would be a good replacement ? specially now i hear single rail for 12v wont be good for this kind of build ...


my pc specs : -

2x Intel Xeon E5-2687W CPU
Asus Z9PE-D8 WS Motherboard
32GB Corsair Vengeance 1600mhz RAM
Nvidia Geforce GTX 680 Graphics Card
1x Intel 520 SSD 240GB
1x Crucial C300 SSD 250GB
3x WD Caviar Green 3T HDD
1x Blu Ray Writer
2x koolance 350 Pumps
9x 120mm Fans
2x 140mm Fans
1 Fan Controller
1 Internal Card Reader
Antec Truepower Quattro 1200w power supply

so the system as you can tell pulling a lot of watts from the wall, CPUs and Graphics card staying very cool since they are watercooled .... i would appreciate any suggestions

Cheers