Full load calculation

[macho84]

Hello guys i need your help . See i am running the following spec and let me know whats the max wattage at full load

pentium d 2.8 cpu
intel d945gcl
2gb ddr2 667 kingston
80gb hdd
2tb external
1 linksys wrt120n
17 inch lg lcd monitor max res 1280x1024
HD 5770 1gb gpu
CM 600 EXTREME PLUS
Currently i am runing with numeric ups 600 va. i hardly get 2 min of backup. Not sure over load or wattage.

I recently installed invertor. But even that is overloaded when my TV and Pc are running at the same time

Invertor 1kva 650 ratted max 700 watts
Exide Inva tubular IT 500 150AH.

Let me know if my PC max power usage.

I am not sure this is right thread to ask.

 

[coderunknown]

use this to calculate the total power. but remember that PSU will draw lot more power than the amount your PC requires. hence the low backup of the UPS & overloaded inverter. also maybe the UPS is old. so battery maybe dying.