CPU/Mobo X2 240 or E5300 for 24hrs run

[M@crosoft]

the purpose is not hanging over HD, it's about normal computing and cctv fottage recording+corel draw works

 

[tbf]

I would choose a Gigabyte or Asus G41 chipset mobo and E5300. Preferebly giga EG41, since it is touted to be energy efficient. Intel's 2D graphics handling is quite satisfactory and that is important from coreldraw point of view.

 

[Peter]

Gigabyte motherboard and E5300

 

[tosh79]

its around 50~55w.
its better you do not add a gpu if not planning on gaming. Even idle powerconsumptiojn of 8600GT is around 40w+.

Biostar TA 785G 128m has gr9 power saving techniques, and switches off un necessary CPU phases in idle mode.

No Mate !
An 8600 GT requires only 18 watts at idle, So no problem going for 24/7 if the OP does not mind an additional 20 watts power consumption from the rig.