Gigabyte P55A-UD 4 + i7 870 with turbo boot problems

Hi guys, I have a little problem with my system. My specs:
Gigabyte P55a-UD4 Rev 2.0,
Core i7 870,
Mushkin Red Line 2*2 GB 7-7-7-18,
Sapphire Radeon HD 6870.
Running on Windows 7 Ultimate x64.

The problem is Windows 7 hangs at the starting screen if I have processor Turbo mode on and C1E enabled in bios. With EIST and turbo enabled, it works great.

Any ideas? Thank You

3 answers Last reply
More about gigabyte p55a turbo boot problems
  1. Quick update: when the startup freezes the HDD (seagate barracuda 320gb SATA II) makes a strange click and alčso the PSU (i think) makes a strange noise for about a second. Could this be HDD related?
  2. Hi

    I'm having the exact same problem! My system is:

    Gigabyte P55A-UD4 rev.2.0
    Core i5 760
    MSI N460 GTX Cyclone 1GD5/OC
    Kingston HyperX DDR3 Genesis (2x2GB)
    WD6402aaex black caviar 640GB
    Corsair TX650W
    trying to run windows 7 ultimate x64 :kaola:

    At first I thought it was an HD related issue (because of the strange click noise) but it turns out the disk was fine. I ran the wd diagnostics test and i even had the disk returned to the shop were i got it from so they would check it as well. I also put a diffenent HD on and still the same problem.

    PSU seems alright as well, tested it with a multimeter and all the readings were within the 5% margin.

    After reseting the bios I still have the same problem.

    Did you find the solution to this Jure or anybody else?

  3. Giorgio89 said:
    Mushkin Red Line 2*2 GB 7-7-7-18,

    You probably should set up the correct timing & voltage for the memory. 7-7-7-18 seems a little off to me. Check the advertised timings and voltage and set the memory to that in BIOS.
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