How bigger power supply do I need? Tags: Homebuilt Western Digital Power Supplies Sata Systems Last response: September 25, 2009 4:47 PM in Systems Share ozrock July 2, 2009 7:52:34 AM Hi, I have a Gigabyte P5Q3 mobo with a Geforce 4850 display card (with 2 power leads to it. 2.8 CPU Intel, running 2 LCD monitors. 4 GB Ram. Inside XP box I have 2 x Seagate SATA 500 GB 1 x WD SATA 500GB 1 x WD SATA 640 GB 1 x LG CDrom SATA 4 external USB GDs each with their own power supply thru a hub with it's owm power supply. My box Power supply is.. 650W (P4-C650) A/C input 115/220 (using 240 Australia) 50-60Hz 6a/4a DC out +3.3v | +5 | +12 V1 | +12V2 | -12V | +5VsB Max a 32a | 48a | 20A | 18 A | 08 | 3.5 A Total Max 650. Do I have enough power please in my power supply, and is there anything I should be aware of here? Thanks, oz More about : bigger power supply | E-mail me updates | Report abuse Register or log in to remove jsc Homebuilt system Master Power supply Master July 2, 2009 9:12:15 AM You have plenty of power for your listed configuration. | Report abuse cmichael138 Homebuilt system Expert July 2, 2009 2:25:09 PM No problem with your 650. | Report abuse thefox14 July 2, 2009 2:34:50 PM yeah, you could probably put another 4850 in there with that much power. | Report abuse Related ressources Do i need a bigger power supply ? - Forum If i added a bigger Power supply to a dell 4600 would it perform bette - Forum Do i need a bigger power supply for dedicating 2 graphics cards? - Forum I need a bigger power supply - Forum Should I get a bigger power supply ? - Forum Ask the community Publish Nayanak August 18, 2009 12:42:16 AM just a quick bit of advice, have a look on the power supply's label and see if it lists the total available watts on the 12V rails thats the number you want to look at from what ive read that PSU is a cheap generic rebranded shaw psu and probly wont be able to deliver anywhere close to 650 watts on the 12v rails just going by the label itself and using a calculater the 3.3 and 5v rails add up to 345 watts leaving 305 for the 12v rail and thats only if it can deliver the full 650 watts. granted all this info is based on my own research but im pretty sure its accurate if i am wrong im sure somebody will correct me but just be careful about adding to much to your system generic psus can sometimes burn out easily and can take your comp with them skimp out on a vid card skimp out on a processor hell even skimp out on a keyboard and mouse but never skimp out on a power supply oh and to answer the question even though its a bit old, a good quality 350-500 watt will handle that set up | Report abuse ahem August 18, 2009 6:17:08 AM no probs, a quality 550 could take that | Report abuse stevensl2 August 18, 2009 8:14:17 AM lol a quality 400w could take it | Report abuse girtha1134 September 25, 2009 4:47:55 PM This is the link that i use for that: http://extreme.outervision.com/psucalculatorlite.jsp | Report abuse Register or log in to remove Ask the community Publish Tom's Hardware>Forum>Systems>How bigger power supply do I need?> Related ressources: ForumNeed a bigger power supply ? ForumIs my overclock Unstable or should I get a bigger power supply ? ForumBigger power supply bad for my mobo? ForumPower Supply bigger than fan cutout? ForumWill my pc have enough power ? or will i need a bigger power supply ? ForumDo I need a bigger power supply ? ForumStudios XPS,buy bigger case or upgrade power supply ? ForumPossibly need a bigger Power Supply ? ForumHow difficult is it to replace your wattage with a bigger one, and are there any ForumHow many watts i need in a new power supply ? ForumHow do you know when to get a bigger PSU ForumA bigger PSU means saving more on bills? ForumWhat Power supply do I need ? ForumNeed replacement power supply and/or media center case ForumNew to building ($1,000 budget) More resources Read discussions in other Systems categories Homebuilt New Build Prebuilt Cases Power Supplies RAM CyberPower !