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trying to overclock an old HP Compaq 6720s


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Hi, they gift me an old HP 6720s and I want to have a try overclocking it,
I saw on schematics that it should have the ICS9LPRS355 PLL,
I tried SetFSB with the ICS9LPRS365BGLF and it displays the right FSB and PCI/E Frequencies
with ICS9LPRS355BGLF or with SetPLL on ICS9LPRS355BKLF are not reporting the right frequencies..
but it seems it has locked TME since it can't set the FSB,
anybody has already tried to overclock this laptop? what should I do? i can't find an already succesfull TME unlock on this PLL.
Thank you very much

PS: I just want to rise pci ex frequency a bit, since i'm trying an Egpu without nvidia optimus . igpu is x3100 :(

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