Will 420W power supply be enough for this rig?

By dimla · 13 replies
Aug 15, 2007
  1. Power Supply 420 Watt
    Processor ( AMD AthlonT64 X2 6000+ Dual-Core CPU w/ HyperTransport Technology )
    Processor Cooling ( [=== Silent ===] Thermaltake MaxOrb CPU Cooling Fan System Kit Silent & Overclocking Proof = Maximum cooling efficiency for quietness and performance )
    Motherboard ( MSI K9A Platinum AMD-Crossfire-580X Chipset w/7.1 Audio , Gb LAN, S-ATA Raid, USB 2.0, IEEE-1394 Dual PCI-E MB )
    Memory ( 2048 [512MB X4] DDR2-800 PC6400 Memory Module Corsair XMS2 Xtreme w/Heat Spreader )
    Video Card ( 2x ATI Radeon HD 2400XT 256MB PCI-Express x16 )
    Hard Drive ( 320 GB HARD DRIVE [Serial-ATA-II, 3Gb, 7200 RPM, 16M Cache] )
    CD-RW/DVD-RW Drive ( [** Special !!! ***] 18X Dual Format/Double Layer DVD±R/±RW + CD-R/RW Drive Black )
    Sound Card ( Creative Lab Sound Blaster X-Fi Platinum Fatal1ty Champion Series)
    Network Card ( Onboard LAN Network (Gb or 10/100) )
  2. A_DOG73

    A_DOG73 TS Rookie Posts: 155

  3. dimla

    dimla TS Rookie Topic Starter Posts: 30

    thanks a lot! i appreciate the help
  4. Mugsy

    Mugsy TS Guru Posts: 488   +43

    Ignore him. The answer is "no".

    Ignore him. You need a good 550+ or more psu (the more the better). A 420W psu would be about a "bare minimum", but Crossfire slaved Radeon Video Cards will draw a lot of power, and a 6000+ Athlon is likewise power hungry.

    Monitor your heat levels CLOSELY on this rig because you're going to be generating a lot of it. If you need to add more fans or go the water-cooled route, that too takes more power.

    550 to 600 should give you more than enough wiggle room with room to grow. Put the 420 in the closet and hold on to it as an emergency backup.
  5. nickslick74

    nickslick74 TS Booster Posts: 550

    Just out of curiosity, what brand is the 420? I went HERE to calculate your power need and it came out to 625watts. I had to make a few guesses but I think I came close. Not nearly enough power in the psu you have chosen. You might want to look at the OCZ Gamestream psu, very popular.
  6. kpo6969

    kpo6969 TS Maniac Posts: 710

    I would say NO. Unless you have a high quality psu. Instead of thinking watts, you should think about amps. I have basically the same set-up as you:
    3 sata drives
    4 sticks ram
    sound card
    video card
    cpu- I have a 5000+

    6000+'s are nice but they don't run cheap. My cpu uses 65w. Guess what your's uses? 125w
    My psu is 22amps and I need to upgrade it when I upgrade my video card.
    Remember, your cpu is always on and drawing power.
  7. Tedster

    Tedster Techspot old timer..... Posts: 5,745   +14

    your psu probably would be underpowered.

    google "psu calculator" use a free tool and add 30% for cushion.
  8. dimla

    dimla TS Rookie Topic Starter Posts: 30

    thanks, im probably gonna go for a 700+ psu to be on the safe side, now to pick which one
  9. Mugsy

    Mugsy TS Guru Posts: 488   +43

    I bought a Thermaltake "ToughPower" 550w myself, which has served me well despite the ridicule I've received from others about my choice.

    If I had it to do over again (and had more money), I would of liked to have purchased the higher end version with detachable cables. Makes for less clutter inside the case and better airflow if you can simply unplug any wires you don't need from the PSU. A windowed case looks better too with when it's not stuffed full of loose wires.
  10. Tedster

    Tedster Techspot old timer..... Posts: 5,745   +14

    you can check out tomshardware.com and read their torture tests of psus. Their 2006 test was extensive.
  11. Rage_3K_Moiz

    Rage_3K_Moiz Sith Lord Posts: 5,397   +36

    One question before I recommend anything, why are you running two HD2400s in Crossfire? They're such weak cards that the extra power needed and heat generated outpaces any actual performance benefits. Get an 8800GTS 320MB or an 8600GT\HD2600XT and save some money on that new PSU and card. Any 600-650W PSU from Antec, Thermaltake, Corsair, Enermax, FSP Fortron, Cooler Master, Silverstone or PC Power & Cooling will do.
  12. dimla

    dimla TS Rookie Topic Starter Posts: 30

    i actually changed that to 1950gt's now.
  13. kpo6969

    kpo6969 TS Maniac Posts: 710

    Why not the X1950xt?
  14. yakwhacker

    yakwhacker TS Rookie Posts: 31

    don't listen. Thermaltake is a great company.
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