PLL Pinmod Overclocking Methods and Examples

yeah, I know it will lock on the lowest multiplier
just want to check that cpu can run at 266fsb
when it's ok I will do a pll mod, but if not works at 266fsb with BSEL it wil not work with pll mod, so I don't have to risk with my soldering skill...

 

Hi I hava a Dell inspiron 1720 laptod with a t2370 1.73ghz cpu and I want to overclock a little because I need it for rendering a bit faster so could this work on my laptod and if dont what I have to do I found
in another post that my pll is CY28547lfxc you help will be very apreciated thanks in advance

 

Follow directions here for the CY28547 PLL.

Your T2370 is a 533Mhz FSB CPU, so the PLL is set to 133Mhz. Could instead separate the FSB track (pin45) routing it to 3.3V via a 10K resistor to run 166Mhz FSB (2.16Ghz). You'd certainly notice the improved performance if doing that.

 

Since you already have a 1mb cache CPU, you could also buy a very cheap and similar celeron dual core CPU such as t1600 or t1700. To run at 2-2.2ghz would require no soldering.
The t1400 and t1500 (which have dual core versions) only have 512kb of cache but could potentially run at 2.6 and 2.8ghz.

 

Originally Posted by nando4
Your T2370 is a 533Mhz FSB CPU, so the PLL is set to 133Mhz. Could instead separate the FSB track (pin45) routing it to 3.3V via a 10K resistor to run 166Mhz FSB (2.16Ghz). You'd certainly notice the improved performance if doing that.

So I have to solder but I dont know much about that, is there any sofware way? I download setfsb and dont found my pll on the list, thanks for the info

Originally Posted by niffcreature
Since you already have a 1mb cache CPU, you could also buy a very cheap and similar celeron dual core CPU such as t1600 or t1700. To run at 2-2.2ghz would require no soldering.

oh thanks but where I live is very difficult to find a mobile cpu and if I could buy one instead I would bought something a little better XD like a core 2 duo

excuseme my english

 

Unless your PLL is TME-unlocked AND has a compatible entry in setfsb then software PLL overclocking is not possible.

Options then are:

1. Soldering as described in my last post. A mobile phone repair technician could do that for you.
2. Purchasing a Celeron CPU. They can be BSEL modded to run a faster FSB. That requires no soldering. A core2duo (C2D) will lock you to x6 multiplier if do that.
3. Purchase a C2D and run it at factory designated speed.

 

Opstion response
1. If I get the mobile phone repair technician I would tell you and again apreciate your help
2.I dont undestard why lock to 6x multiplier this laptod isn´t suposse to be compatible with even T9300 cpus and x9000?
3.so in this case I maybe will be getting a c2d cpu could I will be able to use the full 667mhz on the ddr2 rams anyways you will see me back is I do that
4. Thanks for your help guys I realy apreciate your faster responses and interesting.
5.]I am still learning english.

 

I am back after i while.
I already gained 200 MHz from using throttlestop but i do really want to keep on pushing my laptop.
I also used r-w everything to read my pll but it won't access it, so i guess i can't do anything on a software level.
Same old CY28547 and i really want to try and mod it to go for 266 MHz FSB.

 

Hi. I am new to these forums but they interest me because I, like many others, like to squeeze as much performance as possible out of our hardware. We paid for it, right? So I used the information here to do my own research and perform pll pin mod on ICS9LPR355BKL. Laptop model is HPG60 which is notorious for problems but as I will explain later, mine is running well. The processor is LGA 478 Intel T4200 @ 2ghz. Chipset is Intel GL40 (ICH9 Raid Controller).I was afraid that this laptop was going to be ulockable since it is a budget hp product with an insyde bios (however it is looking like insyde bios is extremely powerful, just has to be unlocked) but it looks like a pll mod can be performed on almost any pll. You just have to look at the data sheets and see what pins need to be grounded (in this case) or whatever. Well, I came across some things that you may find interesting while testing for max fsb. Here is what I found:

1. It seems that the highest overclock I can achieve without BSOD (unstable overclock) is around 240 mhz. 240 * 10 = 2400 mhz. This is with stock heatsink. If I play games it will crash in about half hour. It seems that even if I relax my spd timings on ram I still have the exact same wall so i think it is not a ram wall but maybe the cpu not being able to run at elevated bus speeds. This is specified as a 200 mhz only processor. However the chipset is rated for 266 fsb for use with newer processors so it seems to be a cpu limitation. And since it runs at 6x multiplier unless more power is needed than it can't be the heat since it is at 1.4ghz. I tried raising voltage and the exact same wall. Does anyone have any imput? If I buy some 1066 mhz (800 is in there right now) ram and throw that in there do you think I could hit 266 bus speed?

2. The fsb always resets itself to 200 mhz UNLESS I set the fsb to 233.3 mhz. For some reason when I set the fsb to this speed not only does it 1) survive resets and poweroffs. 2)This is the only setting where the PCI frequency stays at 33.3 mhz. This inidcates that it MUST BE ENTERING SOME SPECIAL MODE. Any other setting raises the PCI frequency percentage wise.

3. If I change the fsb to anything but 233.3 mhz it will reset itself on reset or poweroff and must be set by setfsb again.

4. PC is rock solid stable at this 233.3 mhz setting even after a full night of counterstrike source (full dual core utilization) with no extra ventilation but stock laptop fan. Anything above this setting seems unstable and causes crashes.

5. Framerates are better at this 233.3 mhz settings than at 238 mhz. It seems to me that the chipset or cpu enters some sort of turbo mode. I don't know if this is a chipset feature or what but that's what it seems to me.

6. At this 233.3 mhz setting I have been able to run my kingston pc6400 valuram (800 mhz ddr2) @ 933 mhz 5-5-5-18 which is amazing considering this is the cheapest ram kingston makes. It seems it is pretty tolerant to frequency hikes. Again, stability at this 233.3 mhz setting seems to be rock solid.

Now, this is pretty cool considering I am getting a 17 percent hike in performance with no additional modifications. An added benefit of this is that at idle it sits at 1400 mhz instead of stock 1200 mhz. Now with some unlocking of insyde bios to enable dual ida (which i have a sneaking suspicion this processor is actually capable of) and enable EIST. Then we can really get to work.

 

Great work. Just to save you grief, a T6600-2.2 in a Dell Inspiron 1440 is not dualIDA capable, even though the bios itself has an option to unlock EIST to allow dualIDA. The Penryn "budget" T4xxx, T6xxx miss out on IDA and superLFM mode, plus are 800Mhz FSB CPUs. A shame since IDA mode unlocks higher voltages as well, which is what you may need for stability (??). You could get higher voltage by doing a VID pinmod. See http://forum.notebookreview.com/har...90696-bsel-mod-socket-p-explained-photos.html .

 

Thanks for the quick reply. It looks like I can only do reductions to vcore on socket P... I may be wrong but that's what I gather from the thread.

 

Anyone want to help a mod out?

Attached is a SPDTool dump of my SAMSUNG DDR2 667mhz RAM with 5-5-5-15 timings that I need to take to CAS 6, 444mhz to work with an FSLx overclock from 200mhz to 266mhz.

Anyone want to give pointers on how to modify this RAM for CAS 6 using SPDTool?

So far I understand that I have to change SDRAM Cycle time at Maximum Supported CAS Latency to 2.25ns 444mhz.

What else has to be adjusted?

We really need a guide for how to use SPDTool for this purpose.

 

I would just open SPDtool, change "CAS Latencies Supported" from "3, 4, 5" to "4, 5, 6".

Then click Edit > Fix checksum.

From what I remember, that is all that needs to be done if you want 333mhz cas 6.

Then when you overclock the FSB, the ram will go to 4xxmhz still @ cas 6.

 

Nice, thank you. Going to try it out now. don't worry, I made a backup.

 

Just did the undervolt on T4200 w/intel gl40 chipset. I did the -.2v mod... Working fine and temps are noticably lower.. Fan has only been on medium speed so far has not hit high speed. Running at 233.3 fsb right now (2333 mhz). I am thinking that the ram is my bottleneck. Everything else on this board is capable of 266 fsb. I saw a post on a chinese blog w/pcitures of a 4200 running @ 2666 mhz @ 48 degrees c so I know that the ram must be it. I will buy some 1066 ram in the next week and report.

Report : At idle core temps are 10 degrees celsius cooler (41 c) than before (52 c)

I remember seeing my t4200 @ 72 c when I was testing max fsb so I know the cpu is capable of the heat. Something on the board cannot tolerate anything higher than 240 mhz. GL40 is rated for 266 mhz cpus so its not that... .ICH9 is rated for 266 fsb so its not that. CPU is proven to run at 266 with -.2v mod. Everything is pointing to RAM.

EDIT: Just looked at the "compatible products" for a GL40 and no 1066 mhz CPUs are listed... So maybe it is simply the gl40 chipset that cannot run at elevated fsb

QUESTION: I know this is way beyond what were doing here, but is it possible to actually replace just the northbridge on a motherboard? Note to self: umnm... google it .

Answer: Impossible because bga pins are soldered in a certain order. Even with advanced machinery an identical chipset would have to be used.

 

Ok so I went and researched and it looks like they do make something called PC2 8500 ram. Most of the 8500 is PC3 204 pin SoDIMM. So I had to look for 200 pin SoDIMM pc2 which was hard to find. I finally found some 1066 mhz PC 2 for 31$ for 2gb. There was only one listing by the way for pc2-8500 everything else was pc3-8500. I double checked and the form factor is indeed pc2. It is funny because corsair does not list this memory on its webpage but it has corsair product id.... My thought is that this will allow me to do what Im doing so it is a hard product to get. i ordered 2 2gb sticks of the pc2-8500. They should be here in a week. After that I will let you know if I can hit 1066 fsb. Specs. HP G60 Laptop, T4200 2.0 ghz @ 2.33 ghz, GL40 Northbridge, ICH9 Raid Controller, Intel MOBO. Im convinced this baby can 266 * 10, 2666 mhz. As soon as this memory comes I will report the news. here is the wiki showing that they do indeed make 1066 mhz DDR2. http://en.wikipedia.org/wiki/DDR2_SDRAM . Its funny because on the product review the "RAM Technology" on the specs page states "DDR3" But the "Memory Standard" denotes DDR2, and the "Form Factor" states PC2. The picture also shows the pc2 form factor.

Again I will report and give details if I am succesful in this 30 percent overclock on intel board.

What's been done so far - PLL Unlock for TME disable on ICS9LPR355BKL

Undervolt Mod for Socket P - VID 4 Mod for -.2 V

Right now running at 2333 mhz, 233 FSB, DDR2-800 @ 933, Rock Solid Stable

1066 MHZ PC2 DDR2 ram ordered...

 

I would like some 1066mhz DDR2 sodimm ram, can you post a link to it?

 

Yes . Here you go. ANTOnline.com - Corsair CM3X2GSD1066 Corsair CM3X2GSD1066 2GB PC3-8500 1066MHz DDR3 200-Pin SO-DIMM Laptop Memory . It took me a while to find it again lol. Look carefully at the Form Factor. The size is 200 pin SoDimm which is PC2. 204 pin is PC3 and it is not compatible with PC2. NOTE ALL DDR2 (PC2) RAM MODULES ARE BACKWARDS COMPATIBLE, so you can use 1066 mhz pc2 8500 on any pc2 slot. The Picture is also a 200 pin sodimm module. On a 204 pin sodimm the notch is farther towards the center by maybe 4 pins.

Here is another site with specs for it http://www.factoriesonline.com/ProductInfo.aspx?id=5715357

Again, Corsair's website does not list this product.

One more very interesting thing to note. The data transfer rate with pc2 8500 is 8533 mb / s compared to 6400 mb / s for pc2 6400... I'm starting to get a happy feeling in my stomach.

 

I googled CM3X2GSD1066 (Manufacturer Part Number) and most places list it as 204 pin DDR3 ram.

When you get the ram, can you please post here if it really turned out to be 1066mhz DDR2 ram?

 

Yes, I will post pictures as soon as they arrive. It should be here wednesday. Here is another link. I don't think walmart would mess the specs up. Walmart.com: Corsair CM3X2GSD1066 2GB DDR3-1066 200-pin SO DIMM SDRAM Laptop Memory Module: Computers however you may be right. I think that the memory technology of the ram chips themselves are DDR3 but the interface is DDR2 or PC2. So maybe when some sites are cataloging it they catalog it as ddr-3. but the product specs say pc2 8500 and 200 pin sodimm. so let's hope it is what it says it is. Remember 200 pin sodimm = PC2, DDR2

GOLD MINE! Directly from Corsair... http://corsair.pricegrabber.com/sea...tr=CM3X2GSD1066%20/__utmv=-/__utmk=260724749/

They may have released it in two different form factors. I'm sure the vendors would have gotten enough complaints by now that the wrong form factor was advertised, especially a place like walmart.

Quote from Wiki "Notebooks have 200-pin modules for DDR and DDR2"

Idea: Initially released as a 200 pin PC2 Module, but industry shifted to PC3 for 1066 and so they just changed the form factor to PC3. Just an idea.

 

pabloa2, that site isn't from Corsair, it's from pricegrabber.com with corsair used as a prefix.

Try here.. Welcome to Corsair :: Value Select Product Information

CM3X2GSD1066 = DDR3 204 pin

P.S. don't hate me after reading this.

 

Trust me Ive read all that stuff but I saw someone earlier that said he posted something on the Corsair forum about the same thing we're talking about here and it was removed due to competetive marketing something.

For example notice that this product is not listed under the DDR3 Modules Section....

And also there are 5 sellers for this product and only 1 for the other 2 in the same family. Don't you think with the ammount of sales someone would have raised a beef about the 200 pin form factor by now?

 

Did you look at the link posted? CM3X2GSD1066

It would be great if such a thing exists but since it would also require a hardware volt mod then I think the only way your going to get what you want is to make it yourself. Although there are 240pin 1066 DDR2 available I don't see it moving to sodimms this late in the game. Still, can't you use what you have by changing the memory ratio using the spd?

 

Read this Can I Upgrade The Memory (RAM) On My Notebook?
And don't say I didn't tell you... Now that we know it exists we MUST find out where to get it.... wow the possibilities. I hope what I got is the right stuff.

Now compare the specs of the ram for the P460, P560, X360 and X460 to what I just bought. Now this is Samsung's own f.a.q. and they manufacture ram, that's what they do, so I don't think they messed this one up.

EDIT: They messed it up. They posted a newer version of the document that lists all PC3 8500 DDR3 204 So-Dimm... Shame on Samsung for those (serious) typos.

 

Yes I did but look at the section above that. It says DDR3 Modules. This makes me think that it was produced in both PC3 and PC2. Why wouldn't they have placed all the DDR3 under DDR3?
It would not require a volt mod because it is PC2 8500 200 pin SoDimm... DDR3 just denotes the speed not the form factor. the PC denotes the form factor. PC, PC2, PC3 etc. PC 3200 DDR , PC2 6400 DDR2, PC3 10666 DDR3 etc. BUT there is such thing as the PC2-8500 standard. You just need to find a manufacturer that puts it in the 200 pin SoDimm package. Since all PC2 SoDimm (except for some special mac ram) uses same voltage and form factor it is all backwards compatible... I hope you see where I'm coming from here... I think that there may be some incredible speeds reached if we can get our hands on some of this ram. And PC2 8500 1066 has CL 5-5-5 compared to PC3 8500 1066 CL 7-7-7.

"Higher performance DDR2 DIMMs are compatible with lower performance DDR2 DIMMs; however, the higher performance module runs at the lower module's frequency. Using lower performing DDR2 memory in a system capable of higher performance results in the bus running at the rate of the lowest performance memory in use; however, in many systems this performance hit can be mitigated to some extent by setting the timings of the memory to a lower latency setting."

I am convinced this was a product that was made first in PC2 form and very shortly afterwards shifted to PC3. That's why a lot of retailers are out of stock of this part. So two variations were made I am thinking. Also, look at where the product is in the lineup. Directly after the 800 mhz DDR2 ram and before the "DDR3" group. Maybe they were planning on taking PC2 to 1066 and decided to back out. More evidence would be Samsung only having four models of laptop that used this ram. Maybe as a pilot program to see how it performed. Samsung does manufacture ram. The point is the stuff exists so we need to find out where to buy it!

All I know is they made it really hard to find :/

EDIT: I found these quotes on my search... This is 4 out of 9 reviews on one seller's page... I think my suspicion is correct...

NOTE: Asus EeePC 1015PED uses PC3 DDR3 ram.

"This product matched ASUS recommendations for 2G upgrade but would not work in the machine. Amazon's recommended would not either I am sure as it is DDR2 instead of DDR3 which the machine would not run."

"This item shows up as a suggested purchase with the ASUS EeePC 1015PED which is why I bought it since I wanted to upgrade to 2 GB Ram. This memory, however, is not compatible with it. Lots of researching later and your best shot is to look at Crucial's ram for this netbook. Save yourself the hassle of returning and reordering if you have this netbook (Amazon carries the crucial one)."

"I ordered this product for my Asus Eee PC 1015PED netbook and it did not work. Netbooks are very picky with memory upgrades. Read the discussion board for my mini review."

"This Ram causes my Mac Mini to Kernel panic a lot. I am rather dissappointed in the quality of it. While Amazon does an amazing job ensuring that the product gets to you quickly it just seems like they dind't do the QC on this particular set of SO-DIMMS. I am torn as to whether I would buy it again likely I would spend the little extra to get Crucial Memory. I think if there wasn't a back order on Crucial memory I would return this to Amazon.com. But because I can't get a better quality product in a timely manner from Amazon I will settle for this. "

Notice the one person that says that it works fine and fast is the Chinese guy, lol, no pun intended, they are just smarter than Americans. He says "I bought this RAM for 40$, to my surprise, it was fast shipped and runs very well."

Here is the whole page => http://www.amazon.com/Corsair-CM3X2...iewpoints=1&sortBy=bySubmissionDateDescending

Note the specs for the Lenovo T400 here => http://www.lenovo.com/us/en/PDFs/Thinkpad_t400_and_t500_datasheet.html it says "Up to 8GB of PC2-8500 1066MHz DDR3"

Here is a quote from a "Corsair Product Guru"

"Unofficially, the memory is essentially the same, however they are qualified and tested in different platforms, and in some cases (depending on revision) they could be programmed slightly differently. " Talking about the differences between CM3X2GSD1066 and VSA2GSDS1066.

They seem to be very hush hush about CM3X2GSD1066

Here is a link to the DDR2-1066 JEDEC standard. You need to register to view it but it's free.. http://www.jedec.org/standards-documents/docs/jesd208

 

Hello,
i have an acer one a150 with ICS9LPRS365BKL Clock generator. I found where my pin11 is connected and opened the circuit, actually i destroyed the resistance where pin11 is connected when i was trying the desolder it. And then i did not ground the pin over a 10k resistance, i just left it floating. But it was not my problem, my board restarted without any distruption and when i checked the tme bit with setfsb, it was 0. Then i hope to change the fsb and set it by clicking setfsb button, but it is not working. As soon as i clicked the button, it gets the old value and nothing changes.
Here a screenshot from my setfsb, i dont know how setfsb working, but is there anyway to change the bits manually which affects the fsb.

 

If you want to do it manually, try something like this:
http://forum.notebookreview.com/ali...generator-ics9lprs387bklf-12.html#post6188065

But check your datasheet for the correct registers.

 

Hi. Here's what I did and what the control registers look like afterwards.


Here is SetFSB before....


And the control registers afterwards...


Notice all the changes... its not just bit 09. Bit 01, 09, OD, OE, 11 and 12 all change.
This is off a tutorial I wrote.

 

I thank you both guys moral hazard and pabloa2 for your response. After testing 2 days long i realized that the pin 14 should be grounded over a 10k resistor. Even the tme bit is 0, it wont let me manipulate the pll3 or pll1 manually. Then as a last hope i put a 10k resistor with my hand on the pin14 and grounded it and then it worked. Tomorrow i am gonna try to solder it, but it is nice to know what the problem was. This tme bit is a little bit strange, you can write it by clicking update at setfsb. So i beleive the only solution is grounding with a 10k resistor.

 

It doesn't matter that you can write it with SetFSB because the bit is only sampled at startup for 1 second then it turns into PCI2. This is why you must modify the PLL to send the proper signal AT STARTUP.

 

Hi,
I've a nVidia Graphics Card and an Intel chipset. Can I use a Pinmod to overclock the bus from 200 to 266 mhz on my Core 2 T3100 ?

 

If your chipset supports a 266mhz FSB you can do a BSEL mod:
http://forum.notebookreview.com/har...90696-bsel-mod-socket-p-explained-photos.html

If the chipset doesn't support a 266mhz FSB, then find the PLL and maybe you will overclock it with a PLL pinmod.

 

I've tested SetFSB already but it doesn't work. In the thread you posted me it's written that it doesn't work with the Intel Chipsets. I've got a nVidia graphic card and I think that it'll not work for me.
There's the post where I explain my problem with Setfsb : http://forum.notebookreview.com/samsung/539752-overclocking-samsung-r530.html.
Thank you for your response.

 

It does work with intel chipsets, the problem is that if your CPU supports EIST then it will be locked to 6x when you do the BSEL mod.

But since your CPU does not support EIST, you are lucky and the BSEL mod will be fine.

I can't find the datasheet for your PLL, so can't help with setfsb.

EDIT: what brand is your PLL? I don't know what "CV" is...

 

My processor is an Intel Core 2 T3100. Supports it EIST ?
For SetFSB, I can send you the datasheet but I can't PM you.

 

Please upload the datasheet to rapidshare or something like that.

Yes your CPU does not have EIST, so you can do the BSEL mod.

 

There is it : http://rapidshare.com/files/438108872/Samsung_R530.pdf
You can directly response me in that thread : http://forum.notebookreview.com/samsung/539752-overclocking-samsung-r530.html.

 

R530 uses a GL40 chipset. Not 100% if it supports 266Mhz operation. If not, the chipset will refuse to boot, in which case would need to do a FSLx PLL pinmod or revert to setfsb PLL overclock if the PLL is not TME-locked.

It's simple enough to test if the GL40 is 266Mhz BSEL capable. Just do a 266Mhz BSEL CPU pinmod as shown here.

 

I don't want to hijack here but I've done a lot of reading on GL40 (my chipset) and initially it was supposed to support 266 mhz fsb, but when they released oem versions it does not list 266 mhz as a "supported" fsb setting.

 

Hello, I'm new here and don't know where to post this, I hope this is the right place.

I'm trying to overclock my new A42JE-VX244, I assume it have the same PLL chip as A42Jv but I don't know how to check whether it could be overclocked or not. Here is a screenshot of it

 

Looks good, TME disabled.

Did you try moving the slider?

Any problems?

 

It locks immediately when I click apply. That's the weird part. I try to play around with it, but so far no go

 

The locking is caused by setfsb changing something that it shouldn't.

Sometimes it's the source for the sata clock.
So try changing bit 1 of byte 0 and see if there is a problem when you do that.

 

I've read the datasheet and I know what you saying, but where does it located in the setfsb? I'm a complete newbie in setfsb so maybe you could highlight it for me please

EDIT: Is this the right one?


Still locks up when I changed it. But I could change hex from 61 to 29 and get proper FSB/DDR clocks when I did that

 

Yes that's correct.

 

Still don't work. But from my own experiment and datasheet reading, the 5, 6 and 7 bit of 00/00 is the clock setting, correct? Even so it still won't budge a megahertz. I'm puzzled.

 

No bits 5, 6 and 7 are not programmable.

You want to look at the frequency control registers, like byte 13, 14, 17 and 18.

I think setfsb changes those bytes to program the frequency.

 

I rip apart my laptop to see the actual PLL chip, and my expectation is correct, it don't use the same PLL as A42Jv but it uses ICS9LPRS427CGLF.

But the free setfsb don't support it, I would like to ask courtesy for anyone please export the ,pll chip ID and send it to me please?

 

Did you try using all of the similar PLLs in the freeware version?

One might work.

BTW you might want to start a new thread for your request, like this:
http://forum.notebookreview.com/asu...ator-import-into-freeware-setfsb-version.html

 

so any one call help in trying to find the ppll of a acer 6930g, because i want to overclock it and i cant