PLL Pinmod Overclocking Methods and Examples

[User Retired 2]

its ICS is
8358124
0806
9LPRS502PGLF

The 9LPRS502PGLF is likely very similar to a 9LPRS501PGLF for which Moral Hazard has explained in detail in Method 1: TME-unlock a PLL to allow software overclocking on the first post on how to apply the TME-unlock PLL pinmod. Summarized as:

1. The G in the model means it's a TSSOP (rectangular) PLL package for which a TME-unlock is set by applying a logic 0 to the PLL pin4.
   
   
2. Do that by following the track leading off pin4 to a nearby resistor. Lift the other side of the resistor leg to isolate the resistor from the rest of the circuit. Run a patch lead to GND, a nearby screwpoint, to the lifted resistor leg. Place some insulation tape below the resistor so that it never becomes part of the circuit again.
   
   
3. OR run a 22-100 ohm resistor on the TME-side of the resistor leg to GND. This is a strong pull down resistor that will set the TME pin to logic 0.

Confirm TME-unlock is now set by reading the TME_Readback flag, register 9 bit 6. Then proceed to use setfsb or setpll to program the PLL. The 45nm T8100 you were deliberating over prior to purchasing your T7500 would have been a better choice for overclocking purposes since it runs cooler. But nevermind, see if you can get a decent T7500 overclock.

[moral hazard]

I found the pll in my netbook (toshiba nb500), it's rtm890n-397. Can't find a datasheet for it, guessing that the pinout should be similar to SLG8SP556 (I think), because one notebook uses both those plls.

Now the m11x uses both the slg8sp556 and ics9lprs387, I compared those 2 plls and they have the same pinout. That means my pll must have the same pinout as ics9lprs387.

So I think I know how to disable TME and also do an fslx mod, but I'll try it later when I have a second notebook to fall back on if anything goes wrong.

[masterjumong2012]

The 9LPRS502PGLF is likely very similar to a 9LPRS501PGLF for which Moral Hazard has explained in detail in Method 1: TME-unlock a PLL to allow software overclocking on the first post on how to apply the TME-unlock PLL pinmod. Summarized as:

1. The G in the model means it's a TSSOP (rectangular) PLL package for which a TME-unlock is set by applying a logic 0 to the PLL pin4.
   
   
   
2. Do that by following the track leading off pin4 to a nearby resistor. Lift the other side of the resistor leg to isolate the resistor from the rest of the circuit. Run a patch lead to GND, a nearby screwpoint, to the lifted resistor leg. Place some insulation tape below the resistor so that it never becomes part of the circuit again.
   
   
3. OR run a 22-100 ohm resistor on the TME-side of the resistor leg to GND. This is a strong pull down resistor that will set the TME pin to logic 0.

Confirm TME-unlock is now set by reading the TME_Readback flag, register 9 bit 6. Then proceed to use setfsb or setpll to program the PLL. The 45nm T8100 you were deliberating over prior to purchasing your T7500 would have been a better choice for overclocking purposes since it runs cooler. But nevermind, see if you can get a decent T7500 overclock.

i never thought i would go this far because i thought the T7500 @ 2.4Ghz would be able to let me play smoothly but i was wrong and now i need to find a way to increase CPU performance.

for the T8100, for sure if i only knew i would go this far and do this modding, i would have pick that instead xD

yes the ICS is indeed rectangular shape but the total pin is 56 because it is shorter


i can see that the nearest resistor closest to the Pin 4 has 2 ending points
im sorry but what do you mean by " Lift the other side of the resistor leg to isolate the resistor from the rest of the circuit"


do i need to literally "lift/remove either end of the resistor?


what do you mean by "Run a patch lead to GND"?

what is a patch lead btw?

what is GND how can identify?

i still have left over 75 ohm resistors from my previews Ultramon/Chung-Gun Internal LCD setup
6 Resistors 1/4 Watt 75 ohms metal film 1% - eBay (item 180501881515 end time Mar-27-11 15:30:40 PDT)

since it seems that hardware modding is my only option.
what is the best possible mod for me that will give the best absolute result?


i don't have any tools for this modding so i need to get it.

so what i need is a soldering iron?


do you guys know any soldering iron that is cheap?
i want to get the cheapest stuff that will do the job

[masterjumong2012]

i need help guys!


i tear open up my laptop again and what i did was get the left over transistor from my Ultramon/Chung-gun and put it on the resistor for the nearest pointing resistor on PIN4 and put the other end of it on the nearest screw using a tape

what happened was when i boot my computer, i hear a slow clicking sound(not from my hard drive) then slowly but gradually it becomes louder and faster(i never had that sound before @_@)

i also open SETFSB and check the status on register 9 and the #1 on the second digit is gone and when i try to overclock my bus using ICS9LPR501SGLF

it did work. i can now adjust my FSB and cpu-z is reporting the clocks i selected without crash


i am really worried that the clicking sound will have a bad effect on my computer and it sound is just super annoying and it is getting on my nerves

please help me get rid of the clicking sound asap

edit:

[moral hazard]

Clicking sound, which area of the notebook does it come from?

Did you make sure the speakers were muted?

[masterjumong2012]

Clicking sound, which area of the notebook does it come from?

Did you make sure the speakers were muted?

the sound starts even before it would post

it seems like it is coming from system speaker or something

[moral hazard]

Can you disconnect the speaker?

[masterjumong2012]

i manage to make the sound disappear

what i did was remove the tape and make sure it is not making any contact with other transistor.

i can now set the FSB to 230 but as soon as i go 235 my computer would lock up

[masterjumong2012]

it seems that it is getting loose

i need to get an soldering iron

do you guys know any cheap soldering iron that will do the job?

[User Retired 2]

i can now set the FSB to 230 but as soon as i go 235 my computer would lock up

To maximise your overclock possible alter your system as noted below:

1. Set your x3100 graphics' Power Settings using igfxtray to the more overclock tolerant "Maximum Battery". The key option that allows higher overclocking being "Intel Rapid Memory Power Management".

2. Increase your CPU voltage. Overvolting will give more CPU stability.

3. Change your RAM's 333Mhz SPDTable entry to have CAS=6, matching what a 400Mhz SPDTable entry would have. Do this using ThaiphoonBurner or SPDTool. Moral Hazard has an example on how to do this on the first post. This will give RAM stability since at your 235Mhz BCLK you are running RAM at 391Mhz.

PS: Consider using the Macro function of your camera to get clear close up pics of the TME-unlock PLL pinmod you are doing.

For the DIY ViDock you may well find that a pci-e overclock of 10-25% will yield noticable improvements in framerates. A CPU overclock will help as well.