1. I saw the Asus guys unlock their bclk using setfsb and figured the PM55 can't be too different from the HM55 and decided to give it a shot. The first step is to download SetFSB, switch the clock generator to ICS9LPRS365BGLF, click GET FSB and let it populate the addresses.
2. I realized Dell already gave us the keys to OC'ing the BCLK in the bios so I started by setting my system to default and doing a capture of the addresses setfsb spit out. I then incrementally increased the OC from 1-5% and observed the changes in the offsets (see attached photos). Here's the notes I made last night when testing all this:
Simply amazing. I'll give it a try. I've been using throttlestop and bios but this could be amazing. When the bios overclock is done or the setfsb overclock is done we are raising our base clock and therefore raising our ram operating frequency among others such as the qpi. Since both are locked at a certain ratio of base clock what speeds could our qpi and our ram handle on stock parts? Should we raise ram voltage from 1.5 to 1.6 or even the 1.7 option. I've read 1.65 is Intels max recomended voltage. All this ties in with that magic base clock we are raising. Any advice based on your experience thus far?
so i decided to do some research about overclocking and found out there are two tools which allow you to set the fsb on your main board even if your bios doesn't allow to do so , they were cpucool and setfsb , setfsb didnt really seem to work for me but cpucool did the job perfectly , all i had to do was find my clock generator id (pll) and select it within the software , i was able to raise the bus clock of my motherboard from 266mhz to 340mhz which finally solved my problem although i am still unsure what could have caused the board to lock onto a much lower fsb than it can actually sustain.
I own an Optiplex 780 which is running my processor at much lower clock speed than it should be , hence resulting in a good amount of performance loss , i did some research and found out that the problem could be linked with Intel SpeedStep but disabling it didn't help , my power plan is set to highest performance as well , the processor doesn't seem to throttle as it seems to stay at around 60C under full load.
as you can see in the cpu-z screenshot given below , the rated fsb should be 1333mhz and the bus speed should be 333mhz which is not the case here , the bios also shows the processor bus speed at 1.333ghz
Try clear CMOs settings by jumper reset and replace CMOs battery w a brand new one. Q9550 should run at 2.83 ghz and e8200 at 2.33 ghz. You should not have to tweak bios. After CMOs is cleared it should run at factory default settings.
thanks for your reply , as per your instructions i have tried resetting the bios settings by using jumper method multiple times as well as tried to boot without the cell as well , i have updated the bios to latest version just incase yet the problem still seems to persist , loading factory default settings in bios doesnt help either but it should be expected since the bios shows the bus frequency correctly , i have currently installed fresh fully updated Windows 7 and Windows 10 in dual boot and the bus frequency seems to be underclocked in both of them
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