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Need help choosing power supply

Hello! I am building my first PC, intended for gaming, and I am nearly complete. The only thing that I am still uncertain of is my power supply. I was thinking of going with a 750 watt corsair, but I do not know if I am over shooting the amount of wattage that I need. I will post the full build down here, and any help at all would be greatly appreciated! Mainly I would just like to know if this is a decent power supply, or if I should get something else.

Motherboard:ASUS P8Z77-V LK LGA 1155 Intel Z77 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard with UEFI BIOS
http://www.newegg.com/Product/Prod [...] 6813131837

Video Card:GIGABYTE GV-R785OC-2GD Radeon HD 7850 2GB 256-bit GDDR5 PCI Express 3.0 x16 HDCP Ready CrossFireX Support Video Card
http://www.newegg.com/Product/Prod [...] 6814125419

Processor:Intel Core i5-2500 Sandy Bridge 3.3GHz (3.7GHz Turbo Boost) LGA 1155 95W Quad-Core Desktop Processor Intel HD Graphics 2000 BX80623I52500
http://www.newegg.com/Product/Prod [...] 6819115073

RAM:CORSAIR Vengeance 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model CMZ8GX3M2A1600C9R
http://www.newegg.com/Product/Prod [...] 6820233180

SSD:Corsair Force CSSD-F115GB2-BRKT-A 2.5" 115GB SATA II MLC Internal Solid State Drive (SSD)
http://www.newegg.com/Product/Prod [...] 6820233160

HDD:Western Digital Caviar Blue WD5000AAKS 500GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive -Bare Drive
http://www.newegg.com/Product/Prod [...] 6822136073

Monitor:SAMSUNG B2430H Glossy Black 24" 5ms Full HD 1080P Widescreen LCD Monitor 300 cd/m2 DC 70000:1(1000:1)
http://www.newegg.com/Product/Prod [...] 6824001388

Optical Drive:SAMSUNG 22X DVD Burner 22X DVD+R 8X DVD+RW 8X DVD+R DL 22X DVD-R 6X DVD-RW 16X DVD-ROM 48X CD-R 24X CD-RW 48X CD-ROM SATA Model SH-222BB/BEBE - OEM
http://www.newegg.com/Product/Prod [...] 6827151244

Thanks in advance!
9 answers Last reply Best Answer
More about need choosing power supply
  1. The LOP said:
    Hello! I am building my first PC, intended for gaming, and I am nearly complete. The only thing that I am still uncertain of is my power supply. I was thinking of going with a 750 watt corsair, but I do not know if I am over shooting the amount of wattage that I need. I will post the full build down here, and any help at all would be greatly appreciated! Mainly I would just like to know if this is a decent power supply, or if I should get something else.

    Motherboard:ASUS P8Z77-V LK LGA 1155 Intel Z77 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard with UEFI BIOS
    http://www.newegg.com/Product/Prod [...] 6813131837

    Video Card:GIGABYTE GV-R785OC-2GD Radeon HD 7850 2GB 256-bit GDDR5 PCI Express 3.0 x16 HDCP Ready CrossFireX Support Video Card
    http://www.newegg.com/Product/Prod [...] 6814125419

    Processor:Intel Core i5-2500 Sandy Bridge 3.3GHz (3.7GHz Turbo Boost) LGA 1155 95W Quad-Core Desktop Processor Intel HD Graphics 2000 BX80623I52500
    http://www.newegg.com/Product/Prod [...] 6819115073

    RAM:CORSAIR Vengeance 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model CMZ8GX3M2A1600C9R
    http://www.newegg.com/Product/Prod [...] 6820233180

    SSD:Corsair Force CSSD-F115GB2-BRKT-A 2.5" 115GB SATA II MLC Internal Solid State Drive (SSD)
    http://www.newegg.com/Product/Prod [...] 6820233160

    HDD:Western Digital Caviar Blue WD5000AAKS 500GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive -Bare Drive
    http://www.newegg.com/Product/Prod [...] 6822136073

    Monitor:SAMSUNG B2430H Glossy Black 24" 5ms Full HD 1080P Widescreen LCD Monitor 300 cd/m2 DC 70000:1(1000:1)
    http://www.newegg.com/Product/Prod [...] 6824001388

    Optical Drive:SAMSUNG 22X DVD Burner 22X DVD+R 8X DVD+RW 8X DVD+R DL 22X DVD-R 6X DVD-RW 16X DVD-ROM 48X CD-R 24X CD-RW 48X CD-ROM SATA Model SH-222BB/BEBE - OEM
    http://www.newegg.com/Product/Prod [...] 6827151244

    Thanks in advance!

    i think 600-650watt would be enough for your system,but if you are planning to upgrade to a more power hungry graphics card in the near future,you could opt for a 750watt,this link is for a modular corsair quality psu in australia,you may need to search this product in your country..good luck


    http://www.pccasegear.com/index.php?main_page=product_info&cPath=15_354&products_id=18318
  2. Alright, so would 650 be enough even if I am planning on overshooting a little bit? About 75 watts or so over? Thanks for the reply!
  3. The LOP said:
    Alright, so would 650 be enough even if I am planning on overshooting a little bit? About 75 watts or so over? Thanks for the reply!

    yes i beleive that is correct,i have a similar system running a core I5 2500k, gtx 560ti with a 650watt antec true power supply,how much do you want to spend on a psu for your system?
  4. However much is needed for a good one that will last me. Probably around 250 max?
  5. The LOP said:
    However much is needed for a good one that will last me. Probably around 250 max?

    ok,also take a look at seasonic and enermax,i hear only good things about these brands of psu"s...good luck with your new pc build


    http://www.pccasegear.com/index.php?main_page=product_info&cPath=15_972&products_id=18591
  6. Antec, seasonic, corsair, PC Power & Cooling, Silverstone, XFX any of these will make a goo PSU. Give us a link to your preferred online supplier.
    http://www.pccasegear.com/index.php?main_page=product_info&cPath=15_995&products_id=20230
    This is a newer version of the one I use - Great PSU
    -Bruce
  7. The site that I will most likely use is newegg.
  8. Best answer
    http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&DEPA=0&Order=BESTMATCH&N=-1&isNodeId=1&Description=750w+gold&x=0&y=0
    Antec, Silversone, Corsair or Seasonic - even the Rosewill gets pretty good reviews.
    -Bruce
  9. Best answer selected by The LOP.
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