Overclocking SLG8SP556 equipped M11xR1 using FSLx PLL pinmod
333Mhz mod implemented successfully by some guy, ron_g, varndo
The datasheet indicates no software programmable settings, so no point in looking for a TME-unlock. So then only a FSLx mod can be used to overclock this PLL.
Cutting pin2 only - extra safety margin ([email protected])
333Mhz (2.0Ghz@333x6)
It's actually very easy then to get 333Mhz PLL speed, 2.0Ghz SU7300 CPU speed. The PLL must be set to 1-0-0. To do that, ensure the bios has been set in OC mode where the PLL will see 0-0-0 (266Mhz). Then disconnect the FS_C pin7 from the circuit and route it to a 3.3V point (eg: pin6 of the PLL provides 3.3V) via a 10k resistor. Best done if there is a resistor attached to pin7 which you can lift a leg on. Ensure too RAM timings have been slowed down. You may also need more CPU voltage by applying a VID mod to get stability. See first post for details on these.
Once running like this if you changed the bios setting to the non-overclocked mode the PLL would see 1-1-0, 400Mhz, yet set timings for 200Mhz mode so it's unlikely to work.
If you did want to try 400Mhz then would need to do so while in OC mode. That would mean disconnecting FS_B (pin2) and route it to 3.3V via a 10k resistor. Based on this result it seems the chipset can run at 400Mhz PLL speed (1600Mhz FSB). You'd have a SU7300 running at 2.4Ghz if successful. Certainly would need slowed RAM timings and VID pinmod overvolting to achieve that.
300Mhz (1.8Ghz@300x6)
Here need to to set the PLL to see 1-1-1, needing to route FS_C, FS_B and FS_A to 3.3V points as described for the 333Mhz PLL pinmod above.
The datasheet
Below the datasheet snippet tells the whole story. The three FS_C, FS_B and FS_A pins of interest are highlighted in RED.
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<strike>REF also: possibility of TME-unlock for this PLL here</strike>: can't TME-unlock this PLL.
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User Retired 2 Notebook Nobel Laureate NBR Reviewer
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I did email abo with the datasheet I posted here. I also emailed seligo again about the tme function and they said that this chip doesn't have that function. I'd be willing to try the flcx mod but my expertise in this area....well don't excist, nor do I have the proper tools
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+1 nando4
has anyone with a SLG tried any of these mods yet? -
User Retired 2 Notebook Nobel Laureate NBR Reviewer
FYI: I've asked Kravis to release a generic PLL-load binary to program the PLL with some dump data based off the binary here. He agreed and is working on it. That would remove the need to manually program PLL bits. Would help folks with other too PLLs as well as be a workaround too to buying the shareware setfsb version.
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Right now, I'm trying to VID mod the CPU. How do I set a 1? There are 2 power outputs 3.3v and 5v. Do I connect to 5v next to the VID pin or 3.3v? I seen naton's BSEL guide and he connects pins using wire, which would mean a conductive pen can also work, yes? -
I've found a tool called SPDTool which works with Windows 7 64bit and is similiar to the thaiphoon burner. Unfortunately, it does not support CAS timings under 6. Anyway, ordered a pair of the Kingston CL7 RAM and they should arrive tomorrow. Hopefully, this will give me another boost
maddi -
so i take it you hit a wall just like DavyGT?
what is your highest stable clocks @ what voltage?
thanks. -
maddi -
nice. it seems most people who try this should get around 2.0Ghz. thats a nice 800Mhz bump over stock (counting both cores).
i will be getting my HyperX Ram this week too, but my M11x wont be here till maybe the week after that... this is killing me. -
euchrid_eucrow Notebook Consultant
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User Retired 2 Notebook Nobel Laureate NBR Reviewer
1.10V: VID4+Vss (+0.2V)
1.00V: VID4+Vss (+0.2V) and VID3+Vcc (-0.1V)
0.95V: VID4+Vss (+0.2V) and VID3+Vcc (-0.1V) and VID2+Vcc (-0.05V)
Vss = 0 = This can be done by simply jumping the wire to another 0 logic pin. Eg: VID4+Vss can be accomplished by bridging it with the existing VID3=0 pin.
Vcc = 1 = attach a pull up resistor of 10k to 3.3V
The m11xR1 voltage regulator datasheet is here.Last edited by a moderator: May 7, 2015 -
annnnnd it will be here Thursday. -
euchrid_eucrow Notebook Consultant
So if I've understood the thread correctly, i'm limited to the FSLx mod which pretty much locks me in @ a 2.0ghz ceiling. -
from what i understand thats almost correct. you maybe able to go to 2.4 (or 2.6 depending how the multiplier changes) with a volt mod and strong ram. but only those s peeds.
i dont think the FSLx mod has been actually done yet tho. atleast i asked and no one responded about it. -
euchrid_eucrow Notebook Consultant
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i actually like the idea of the FSLx mod too. after the mod your done. no software to mess with or anything. just set it and forget it.
at any rate 2.0ghz is still a 800mhz boost (counting both cores) in my book and thats better than 1.6Ghz. so i wont be sad if thats all i can get. in fact it will make me pretty happy! -
Is there a thread on the FSLx mod? I was wondering..
Just in case when I get my m11x and I get an SLG. Want to look that up as well..
Not sure if Im going to do a pinmod.. Maybe if its the FSLx mod. I really dont like having to mess with software every time upon boot. I too like the set it and forget it aspect of the FSLx mod vs the try to get every drop of power out of the chip approach but have to play with setFSB every damm time senario. -
i dont know of any thread that really talks about it but this one. someone posted a way to do it in this thread and they sounded pretty confedent that what they said was the way to get it done but im not sure if anyone has actually done the FSLx mod yet.
im kinda shocked this thread isnt getting more traffic.
i got my HyperX ram today and my m11x comes tomorrow. ill prob be busy getting the OS reinstalled on my WD320 black. but some time the begining of next week i want to see what my options are depending on what chip i have. -
This thread isn't getting traffic because a) everyone who needed this mod, moved on to an R2 and b) everyone who wants to do this mod, has an SLG.
I'm thinking Dell is phasing out the ICS PLL, 3 of the 4 M11x I've tested have an SLG PLL. -
euchrid_eucrow Notebook Consultant
I might try it at some point but after reading Nando's post (thanks for linking it,) it looks like the kind of thing that should be done patiently with a nice free afternoon to work on it (which i won't be having for a while.) -
regardless i get mine today so the moment of truth will come soon enough.
@ DavyGT thanks for clearing all that up for us. -
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thanks again for your help. -
With OC mode on, the RAM ratio should stay at 2:3 (1.5 x FSB), giving us 333:500, so the RAM should run at 1000mhz with this mod. This is the recommended variant of the untested mod.
The 1333mhz RAM speed can only be achieved with OC mode off, and further modding, by disconnecting FS_B pin either by soldering or cutting. By doing this, you'll get 2.16Ghz, SpeedStep and full voltage, provided your RAM can clock that far...
EDIT: Just looked and 300FSB is possible but is a PITA- three FSx pins need to be enabled instead of one for 333. It is possible to do 400FSB without 1600 RAM but let's do 333 first. -
dude.... im getting so lost in all this. lol
dont get me wrong im not new to overclocking by any means. but as far as hard mods go ive only done a few so all this jumping pins and whatnot is a little out of my understanding of whats really going on here.
so let me back it up for a sec. i know which mod to try first if i have the ICS. but in the senerio i get a SLG, which mod should i be trying first? nando4's method?
thanks -
Sorry for confusing you, there are alot of combinations possible. -
im just having trouble following the fsb/ram ratios for the different mods. i guess im just used to Bsel mods where just the fsb goes up. -
I do have trouble with FSB/RAM ratios too- learnt RAM ratios as multipliers (Gigabyte FTW).
Btw: I remember now, you wanted Team Fortress 2 performance so you sold your R1 for an R2. I tested TF2 a while ago and it runs fine (25-100+FPS, avg 40-50) in a 24 player 2Fort server at 2.07Ghz. -
Hi guys, I decided to become a member here because of this mod for the M11X. I've visted here numerous times in the past, so I figured why not finally join and say thanks. I'll be doing this mod tomorrow night after I get out of class and will post back my results. I'll see about getting a benchmark from bad company 2 before and after. My laptop does have the ICS as I just checked it so I should be good to go. I bought the laptop for $499 at the end of Novermber and it was a refurb that looked brand new but came with 4gb ram and 320gb HD and the standard 1 year warranty. I just put the dell internal bluetooth module inside of it for $20. I'm pretty happy with the performance and the 8 hrs of battery life which is great for when I have off time between lectures and lab.
On a side note, I put an 8600m gt video card in a dell Inspiron E1505 (inspiron 6400) months ago and I'll probably make a post/write up on how I did this. This video card never was an option for this laptop as the only dedicated cards you could get were an ati-x1400 and nvidia go7300 (or something like that). -
that seems pretty good on a busy server like that. -
i got SLG... :\
well ill let you guys know when i get a free day to tear this guy down and try some stuff out. -
euchrid_eucrow Notebook Consultant
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Opps.. sorry,..??.. that wasn't a push, that wasn't a push!
Can I warm up the soldering iron for you? A nice cup of tea maybe, before 'we' start? -
i can take a hint.... lol
its really not a matter of if, its just a matter of when. i have the map to take me to a place no one has seen before. i just need to get up the balls to tear this thing down and find out if this place is real with out frying a brand new laptop in the process... -
Just a caution guys, this mod requires soldering a 10k resistor to PIN 7. Do not connect PIN 7 to 3.3V with conductive ink, the resistor is there to reduce current!
Btw, PIN 6 and 12 are 3.3V, the other solder points. -
pin 6 and 7 are prob to close to each other so ill prob have to use 7 and 12. unless the distance from 6 to 7 is the same as the length of the restior... prob not tho. :/
ill take as many pics as i can. i dont really have a good camera so im not sure how much detail i can get but ill try my best. -
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ok then. ill just grab my meter and some old mobos i got layin around here and see if i can find a 10k resistor to rob. and just to be clear, i am not lifting the pins off the board right? just jumping them?
i honestly dont have a set date i plan on doing this. i want it to be sooner than later but i just dont know when yet, just so you guys know.
on a other note not related. i noticed this battery seems not as good as the last one i had. the last one i had got almost 9hrs downloading steam games over wifi with the screen off 90% of the time. this one only got 7.5hrs with the screen off the whole time. it maybe that this time i was further away from my router... but more than a hr difference? just tought id comment on that. -
There is no need to rush, you are the only guy doing this mod, take the time and do it right. -
thanks you sir. ill post back with results when i try it out.
if sucessful... ill write up a small tut for all the other SLG owners.
thanks again guys. -
euchrid_eucrow Notebook Consultant
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Curious to see the end results- I'm subscribing to this thread! Don't know if I want to tear down my laptop myself but this is awesome stuff.
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I took apart my entire laptop and have a question about the chip.
The SETFSB shows my chip as ICS9LPRS365BGLF. I took my motherboard out of the laptop and it appears that the physical number on my actual chip is ICS9LPRS387BKLF. I thought these two numbers were suppose to match? I paid for the SETFSB which came out to $9.90 last night and can't wait to start Overclocking this. I bought the 10k 1/4 watt resistors and would like to get this done tonight.
Is their another ICS chips on my board that I've overlooked? Just to clarify the ICS chip is on the top side of the motherboard. This side is the side that faces the keyboard and is opposite of all the copper heatpipes
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ICS 365 and 387 don't match because the free version of SetFSB does not feature the 387 PLL, thus we have to manually program the PLL using a compatible relative, in this case, the 365. You don't have to do this since you paid for the shareware version- you just need to select ICS9LPRS387 and pull the sliders. It's also possible to have SetFSB set the speed onboot, if you're doing the TME mod.
I presume you're doing the TME mod by soldering a 10k resistor? -
Here is the before Windows score with Factory Overclock
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Here is my mild overclock so far. Note that CPUZ shows 1849mhz while SetFSB shows 2003mhz. I think the SetFSB is using the SU7300 multiplier of 6.5 while CPUZ is using the multiplier of 6. I've used CPUZ in the past and its been really reliable. I wonder which one is accurate.
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Pic of Resistor
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CPU-Z is correct. SetFSB did not read the CPU speed properly for me either, like other programs.
BTW: Try overclocking without Overclock mode, it may break you through a vcore wall.
Can I borrow an image to put into the guide? -
VID with overclocking on is .900 v
I wish we could change the ram divider or timings which might help some. I can get my FSB up to 550 FSB on SETFSB, but I'm having stability issues. I'm fully stable at FSB of 530 so far. Going to try and run some intel burn test sessions now.
Sure you can use my pictures -
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How to pinmod and further overclock the M11x R1 (SLG= Hardmod only)
Discussion in 'Alienware M11x' started by DavyGT, Jan 12, 2011.