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overclocking a q6600 in dell optiplex 755 minitower

okay, so i need to overclock my q6600 in my dell optiplex 755 minitower, but i don't know where to find the PLL code on the motherboard. can someone tell me where it is located?
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  1. cdgamerz said:
    okay, so i need to overclock my q6600 in my dell optiplex 755 minitower, but i don't know where to find the PLL code on the motherboard. can someone tell me where it is located?


    You can't oc on that motherboard.
  2. Really, because i see people on youtube overclocking it.
  3. Best answer
    cdgamerz said:
    Really, because i see people on youtube overclocking it.


    Nevermind did a google and seems you can force oc it but you can also brick the system. The pll chip is bewlo the heatsink cover just behinf the pci-e slot. It should say CV or PAG on it.
  4. which PCI-E slot? i looked everywhere near the heatsink, and nothing, there is pci-e X16 and pci-e x1
  5. cdgamerz said:
    which PCI-E slot? i looked everywhere near the heatsink, and nothing, there is pci-e X16 and pci-e x1


    The x16
  6. still can't find it. if you can, can you post a picture? im new to this kind of stuff.
  7. cdgamerz said:
    still can't find it. if you can, can you post a picture? im new to this kind of stuff.


    https://www.youtube.com/watch?v=ikHXAoitM8A
    Found this when looking for a higher rez picture at 2:56 he kinda finds it.
  8. MERGED QUESTION
    Question from cdgamerz : "Dell optiplex 755 force overclock"

    cdgamerz said:
    can you overclock a dell optiplex 755 with MSI afterburner? the CPU is a q6600


    Ali Tauseef said:
    Dell Optiplex 755? That's the name of the PC. What are you planning to overclock? You will be able to overclock graphics card and CPU (probably).
    Which form factor of the Optiplex 755 do you have?


    cdgamerz said:
    The Form Factor Is a Minitower.


    k1114 said:
    Msi ab has nothing to do with cpu ocing. We would need to know your gpu since it's for gpu ocing. But there is no way to lock gpus and you can even oc laptop gpus with it.


    Ali Tauseef said:
    Please be clear on the rest of the qeustions


    cdgamerz said:
    what program can i use to overclock it then?


    Anonymous said:
    No, but it is easy enough with a hardware mod on BSEL pads:

    Just connect the bottom of the CPU like so with conductive pen or defroster grid paint to force the FSB from 1066 to 1333.


    The BSEL mod will get you from 266fsb to 333fsb so with the 9x multiplier 9x266=2.4GHz, 9x333=3GHz. you could just install a Q9650 (3GHz)and be done with it. The Q6700 with 10x Multiplier will go 3.3GHz. You will need heatpipe cooler D9729 which bolts in. The other pinmod you might need is VID mod to raise voltage.
    With more voltage available SETfsb, and Clockgen software can be used.
  9. Don't use the PLL method. Use the BSEL pinmod to 333fsb. Or just run a Q9650 3GHz. A Q6700 with BSEL will go 3.3GHz. VID pinmod will help also. Cooler D9729 is highly recommended.
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