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Enough Power for my PC?

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Jul 23, 2003
Berkeley, CA
Hey all, i have these parts running on an Antec 400 watt PSU. I'm wondering if i have enough power for it all or if i should buy a new PSU.

-Athlon XP-M IQYHA0351MPMW never exceeding 1.8v
-DFI Ultra Infinity A+
-1 80GB HDD WD800JB (RMAing 120GB maxtor 7200rpm 8mb cache)
-Radeon 9500np 128MB softmod no vmods, but OC'd
-1 dvd-rom drive samsung
-1 dvd-rom/cd-rw drive samsung
-1 floppy drive
-3 80mm case fans (cheapy)
-1 39cfm panaflo on the CPU
-1 iceberq4 on the radeon 9500

i'm wondering if i'll need a new PSU, or to stick with this, and what voltages i need to stay w/in based on readings. Thanks!