P35-DS3L with Q6600, FSB problem(Overclocking)

Note: I had this OC to 3.0GHz for 4 months. But the BIOS reset my OC setting after re-install Vista 64 recently.

P35-DS3L(rev2.0) , BIOS version F8
RAM: G.SKILL 4GB (2 x 2GB) DDR2 1066 (5 5 5 15, 2.0v-2.1v)

BIOS setting:
C1E: Disabled
TM2: Enabled
EIST: Disabled

R.G.B.: Auto
CPU Clock Ratio: 9X
CPU Host Clock Control: Enabled
CPU Host Frequency (Mhz): 333
PCI Express Frequency (Mhz): 100
C.I.A.2: Disabled
Performance Enhance: Standard
System Memory Multiplier (SPD): 2.0
Memory Frequency (Mhz): 667

System Voltage Control: Manual
DDR2 OverVoltage Control: +0.2v
FSB OverVoltage Control: +0.1v
(G)MCH OverVoltage Control: +0.1v
CPU Voltage Control: 1.381
Normal CPU Vcore:1.325

Then, I hit F10 and restarted. It still shows 2.40GHz(267x9), DDR2 is at 534Mhz instead of 667 (which means CPU Host Frequency didn't change at all). So, I tried different combinations between voltage, it didn't work. I also tried to OC to 2.8GHz only, it didn't work either. CPU Host Frequency resets to 267 everytime I restat. Need help asap, Thank you.
5 answers Last reply
More about ds3l q6600 problem overclocking
  1. CAS Latency Time: 5
    Dram RAS# to CAS# Delay: 5
    Dram RAS# Precharge Delay: 5
    Precharge Delay (tRAS): 12

    ACT to ACT Delay (tRRD): Auto(4)
    Rank Write to READ Delay: Auto(4)
    Write to Precharge Delay: Auto(8)
    Refresh to ACT Delay: Auto(68)
    Read to Precharge Delay: Auto(4)
    Static tRead Value: Auto(4)
    Static tRead Phase Adjust: Auto(0)
  2. try reseting the CMOS and download and flash f9b bios and FSB 0vervoltage to auto,MCH overvoltage to auto CPU Voltage cotrol to 1.30625 and start decreasing it untill you perfectly stable you dont need more for 3.0 GHZ OC and next time save your overclock to bios so it would be easy to re-apply it again
  3. i think you dealing with RAM limitation problems try to keep it stock speed and OC without a problem
  4. @OP: The P35-DS3x boards are known to have problems with DDR2 1066 RAM. That is probably why. Also don't increase MCH voltage. Also I believe you have seen the P35-DS3L OCing Guide?
  5. ^^ same thing happened to me when i was trying to push towards 3.6
    fsb 400x9
    fsb overvoltage +1
    CPU Voltage 1.4
    Static tRead Value 8
    when i put MCH overvoltage to +1 it restarted and during the post it was reported stock speeds 2.4 Ghz, 800 mHZ RAM wich seems to be normal after bad OC on this board but more funny inside bios it was still reporting 3.6 Ghz 400x9 and when i disabled the CPU host Clock Control it reported ^^ 100x9= 900 mHZ CPU couldnt do any overclock everytime ended with stock speeds ^^ just reseting the CMOS fixed it
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