M860TU and setFSB

Hello all. Been lurking here for a while and thought I should share some of my success in using setFSB. I know that the accepted norm is that you can only gain a 200mhz increase with setFSB, however I have discovered that you can exceed this and have been undertaking a bit of an experiment which I hope you can build upon.

Im using setFSB 2.2.134.98

If you use ICS9248BF-96 you can select a number of overclocks. With my P8400 I can get 2.374Ghz from 14/30 and 2.283Ghz from 15/30 and 2.826Ghz from 16/30. Now you will find that these speeds can be gained at a number of points, for example 9/30 will also get you 2.374Ghz. I had a hard lock on 4/30 so avoid.

Now the real interesting thing is that you can customise the PLL control registers. So far I have uncovered 2.458Ghz in adjusting the BIN. These changes can be made when you open the diagnosis tab and edit the PLL setting using update and apply.

Now there is a real possibility you will open up further o/c speeds by experimenting with the editor. I would love to post the pics, but the missus is nagging me and I havent the time!

 

Impressive! Thanks for posting this, many M860TU users (including myself) have been struggling to overclock for ages.

 

Thanks for the info. I tried messing with setFSB to get my clocks higher for ages, but gave up with no success. It worked fine though on my M571RU.

 

It seems there's 4 FSB's available with that PLL, 1066MHz, 1077MHz, 1120MHz, and 1333MHz.

Below is a list:

01/30 1066MHz
02/30 1077MHz
03/30 1120MHz
04/30 1333MHz
05/30 1077MHz
06/30 1333MHz
07/30 1120MHz
08/30 1120MHz
09/30 1120MHz
10/30 1066MHz
11/30 1077MHz
12/30 1333MHz
13/30 1066MHz
14/30 1120MHz
15/30 1077MHz
16/30 1333MHz
17/30 1120MHz
18/30 1066MHz
19/30 1066MHz
20/30 1077MHz
21/30 1077MHz
22/30 1066MHz
23/30 1077MHz
24/30 1077MHz
25/30 1333MHz
26/30 1066MHz
27/30 1333MHz
28/30 1333MHz
29/30 1120MHz
30/30 1120MHz

 

Nice find, I do believe 1333mhz would be a bit much on my machine.

 

You can also gain another overclock by changing the first PLL register. For example load up the PLL and select 8/30 for example. Now in the diagnosis tab change the first PLL to 1F this will see the BIN chnage to 00011111, select update and then apply and my P8400 is now running at 2.4Ghz. CPUZ tells me im running at 1149Mhz.

Im looking for a FSB of 1200Mhz so I will be at 2.5Ghz. Will let you know as soon as I can find it. Ive found that my laptop will crash with BIN 01101101, so avoid that one.

 

Thanks for the update, I'll give that a try.

 

As I thought 1333mhz freq. was too much, I think 1200 or 1266 would be spot on.

 

I guess mine locks up as I'm using a T9300 CPU which apparently doesn't like having the FSB tampered at all

 

If i could find a frequency above 1200-1300, i think that would be perfect.

 

Well Im hitting the same problem with 1333 on the RAM. Using RMCLOCK I dropped the multiplyer to 8 and my CPU was running at 2.6Ghz. It ran prime95 for a while but then I would get errors in windows. I dont think the ram likes running out of spec. I might look at adjusting the spd settings or using just one stick and experiment.

 

i confirm that this works with Quads. I set the FSB to 4x280 (1120Mhz) and my QX9200 is running at 2.52Ghz at 9x and 2.8Ghz in IDA mode. Havent tried to go higher than that though.

I've read that increasing the FSB also overclocks the GPU? is that true, cause both GPU-Z and Everest still report stock clocks after increasing the FSB.

 

Yes and your RAM.

 

yes Everest reports the ram OC correctly but not the GPU. i really dont want to fiddle with my GPU clocks... with all those horror stories of Nvidia cards dying after a few years I want to leave mine as cool as possible

 

Im sure that the GPU wont be overclocked but the PCI-E. As far as I know your graphics cards GPU and RAM should remain at stock.

 

The GPU is overclocked but it is as though the system doesn't know it's overclocked. So it will still share the higher temperatures and possibly less stability (depending on the FSB) that come with overclocking.

 

is there any way to get around this? can we lock the pci-e clock?

 

You could underclock the GPU and the GPU memory beforehand to compensate.

 

I've had my m571ru OC'ed with setFSB with a .450mhz OC with no stability issues or problems whatsoever. That being said the NP8662/M860 do seem a bit finicky compared to its brother laptop, but normally a FSB OC of .200-.500 is generally perfectly safe and stable.

 

Let me know when you find the bin update for 1200Mhz.

 

Ive had a look through ICS9248BF-96 and 102. No sign whatsoever of a 1200 setting. I did find that 102 was a little more stable in that I didnt get so many shutdowns when experimenting.

Im now looking at ways to change ram timings and use the higher fsb and keep the cpu at 2.6Ghz (8X multiplyer) or 2.8ghz using RMCLOCK.

Not having much luck with memset. Whilst it reads the ram timings correctly it doesnt change the timings when I load up CPU-Z.

 

I've used Thaiphoon Burner to edit my RAM's SPD settings in the past.

It's best to only flash one stick at a time, so if something goes wrong you can re-flash to safe values.

 

Ive been reading up on peoples experience with Thaiphoon Burner and the software is not that easy to use and is not 100% reliable. However, I think its the only way Im going to get my OCZ3M13332G to run at 1333

 

Been following up links elsewhere and even with Thaiphoon Burner I am going to run into problems with the SPD. It appears that the M860TU does not like SPD's that run out of spec. For example I would likely need a Cas Latency of 9 to run 1333 and I have read elsewhere that the M860TU will not boot up with Cas 9. http://www.overclock.net/intel-memory/638121-flashing-ram.html

 

I think problems occur when you only change the cas latency. I flashed one of my sticks using the (800-E) settings only. Rig hasn't crashed in 4 months and it crunches on wcg 24/7. but im also hard oc'd at 1333

 

has anyone found the right combination to get ~1200MHz yet?

 

The highest I got the Q9200 was 2.52Ghz. Everything else just hard locked my system, so I quit trying.

 

same here although i havent tried much...

i did try the PLL RTM876-660 200Mhz OC but it was a disaster... it gave me a FSB of 287MHz = 2.58 Ghz @ 9x for a while but then my system crashed (probably because of my undervolt), and no matter what I tried in Set-FSB the overclock would stick there so my system crashed 4-5 times and then for some reason it reverted back to original clocks (thank God!). how do you revert back to original clocks if you set them too high for your system to handle?

i hate the fact Clevo locked our BIOS, it makes us try stupid things!

by the way i dont understand how to set the second overclock someone was talking about in the diagnosis mode. I enter an Hex number, hit update then apply but nothing happens. could you post screenshots?

 

I never had any issues using the RTM876-660 PLL, which raises my QX9300 to 2.73GHz, but the 1333MHz FSB from the ICS9248BF-96 PLL is unstable.

Interestingly enough, my hardware OC to 1333MHz is much more stable (but still crashes in stress testing), than the software OC to 1333MHz.

 

Roymathiey, if I remember correct, it revert the clocks back to original every time you reboot.

 

hmmm it doesnt on my machine... FSB overclocks seem to stick through reboots... unless both CPU-Z and Everest are reporting bad clock data

if I set a higher FSB with the ICS9248BF-96 PLL I can easily bring it back down using the slider, but with the RTM876-660 I seem to lose control over my clocks

 

Usually, the FSB stays changed until the system is completely turned off, before being turned back on.

 

For some PLLs you can reboot and the overclock stays, for others you have to overclock even after you tell the notebook to sleep and wake up.

I believe there is one bit in the first control register that controlls that.

 

hmmm makes sense... i think i was able to revert back to normal clock only when i completely shut down the computer and power it back on. all the other reboots were restarts

 

great find!
oc my t9400 to 333x9.5, but lower in cpugenie to 333x8 due to instability. oc still resets when laptop goes to sleep or turn off.
And what about pci\pci-e freq? does anybody know how to check them?

 

how exactly did you OC, SETFSB? what PLL and what settings?

 

naticus
did u read 1st and 4th post of this thread?
(setfsb, ICS9248BF-96, 12/30)

 

worked perfect for me at 14/30

anyone tried using different DLL with higher success? Getting bluescreen at 1333 MHz so i would also like something in between 1120 and 1333;D

is there any way to increase the multiplier from 11 to 12 on the processor by any method? ugh wish i didn't have to startup set fsb every time i booted;/

tnx a lot for figuring this out, gonna try 3dmark06 and record the diffrence

 

Been trying to find a good median with those frequencies myself. No luck though.

 

You have to flash your ram modules for 1333mhz. directions in my project thread.

 

Unfortunately my RAMS are write protected. Any one found a way to increase RAM voltage?

 

I hope this thread isn't old enough to make it count as necro-posting...

I'm in the process of acquiring an M860TU, and wanted to ask a couple of questions:

1) If I get 1333MHz RAM, do I still need to bother with flashing the SPD on it? I'm guessing I will because it would end up still stuck at 1066 timings rather than 1333 timings after the setfsb change. Can anyone confirm? Can memset be used instead, to keep the OC 100% in software? If so, what secondary timings need to be set?

2) How can I change the CPU voltage? I have seen people mention such things, but I haven't seen any links pointing at instructions for it. Is there a page/thread documenting this? Is there a way to do this by changing the relevant VRM registers, like what setfsb does for PLLs? I'm hoping to get a P9500 (2.53GHz) in order to reduce possible issues with high multipliers at 333FSB (3.16GHz core), but at that speed, I expect I will still need a core voltage increase.

TIA.

 

Montevina doesn`t work on setFSB. You can only get 200mhz increase and that isn`t perfectly stable.

You can use RMclock to change voltage. Very easy. Google it.

 

Can RMclock be used to increase voltages, though?

And there seem to be people on this thread that are reporting 333FSB to be working just fine for them, using setfsb, as explained in the first few posts. Do you have something to add to that?

 

333fsb is unstable unless you flash your RAM sticks to a different timing. I haven;t done this yet as of right now I think the memory on my gpu is bad, so I will be sending it in very soon.

 

Even with 1333MHz memory modules? So boosting the FSB doesn't re-set the memory timings as per SPD for 1333MHz operation? That was what I was asking. So the 1066 timings have to be flashed to the 1333MHz timings?