1. Post #1
    Creator of Exsto
    Prefan's Avatar
    January 2009
    1,049 Posts
    I just installed my new i5-3570K today, been a bitch getting windows set up and everything. Now that everything is finally working, I went ahead and started doing stress tests + gaming. However, any time my CPU gets somewhat to a high usage, my computer completely locks up, sometimes recovering extremely slowly. I'm thinking its my PSU, which is only rated to run at 500W, which is now lugging around a 6850 and the 3570K. Also, my power supply does not supply an 8pin 12v to the CPU, only a 4pin 12v.

    I think its the lack of the 8pin 12v rail to the CPU, but I just want another opinion before I have to lay down $100 on a power supply.

  2. Post #2
    Gold Member
    taipan's Avatar
    September 2005
    5,543 Posts
    Specify the precise brand and model of your PSU and check your temperatures. (you might have mounted the heatsing wrongly)

    Did you also upgrade your motherboard?

  3. Post #3
    Creator of Exsto
    Prefan's Avatar
    January 2009
    1,049 Posts
    PSU: Thermaltake Purepower 500

    Temps are fine. CPU isn't higher than 40c.

    And yes, I did. My old motherboard was using a 4pin 12v rail to the CPU. This new one wants an 8pin 12v rail.

    Edited:

    Motherboard is the MSI Z77A-GD65 specifically.

  4. Post #4
    Asshole Extraordinaire
    Dennab
    May 2005
    3,705 Posts
    Are you using the stock Intel cooler? My i5-2400 had terrible problems with overheating and crashing with the stock Intel cooler. It wasn't until I got a Hyper 212+ that the machine behaved properly.

  5. Post #5
    Creator of Exsto
    Prefan's Avatar
    January 2009
    1,049 Posts
    I am, but my CPU has never gone above 40c, so I don't think that there is any heat related issue.

  6. Post #6
    Tucan Sam's Avatar
    May 2007
    858 Posts
    you might need a bios update