Way to much power consumption?

[JoeFoster]

See my the spec of my pc below. I use to run my pc off a Antec 303XP 300watt PSU. Now since then I have upgraded some parts and the PSU to a Antec True480w and am using a UPS that says it has 200watts. Would my use of energy and bill be higher because of that? Is all those rated watts being used at those maxes or is my system using only what it needs from the electricity?



CPU: AMD Athlon 1700+(tbred b)1.74v w/Alpha PAL8045+AS3+YS-TECH 48.5CFM 1470MHz @ 1950MHz
Motherboard: Epox 8K7A
Memory: 512 MB of Crucial and PNY Two 256MB DDR PC2100@156
Video Card: Gainward 650TV-8X (GeForce4 Ti4200 250/513@253/560)
Hard Drive: Maxtor 40.0 GB @ 7200 RPMS
Monitor: Samsung SyncMaster 955DF
DVD Manufacturer & Model: 16X Liteon
CDR/CDRW Manufacturer & Model: 32x Liteon
Storage Interface: IDE
Sound Card: Turtle Beach
Internet Connection: Pacbell xDSL @ 1200
Operating System: Windows XP SP1
Other Components: Antec - SX1030b
4 80mm NMB Case fans
Antec True480w
Notes: MBM 5 CPU temp at 33c idle and 43c at full load

 

[AgaBoogaBoo]

The PSU only gives out as much power as is needed so even if you got a 600W supply, you would technically be using the same amount.