BSEL Mod on a socket P explained with photos

[naton]

I have a T4200 cpu (45nm penryn), but my voltage choice in rmclock or cpugenie is very limited - only voltages betwen 1,1V and 1,15V are selectable. Yes, thats total of 5 voltages - all the settings in programs are correct (ticked mobile cpu,...).

Before i go and open my laptop to vid mod, i want to contemplate my options:
- vid4 mod: will lower voltage by 0.2V, but only if I manually select voltage 1,1V (lowest possible voltage for me via rmclock), any higher selected voltage (in rmclock) and vid 4 mod wont have any effect. Since only the lowest multi is using 1,1V as default, i shouldn have any trubles getting into windows with this mod... But question is, if i can select 1.1V (-0,2V) on my max multi (10X) will I still have stability....? If not, I will set my max multi on 1,125V.

- vid4 mod+ vid3 mod will lower voltage by 0,3V, which is certanly too much for the max multi (0,8V at 2000mhz), but still I shouldnt have any problems getting into windows (only 6X multi is using 1,1v - 0,3V=0,8V at 1200mhz). Then I will try set as many multipliers as possible on 1,1V (-0,3V) in rmclock. Those who wont be stable, will work on 1,125V.

Any other suggestions? Its a shame that my options are so limmited... damn you intel

I'll try to answer you questions one by one
1- If you can access only values between 1.1v and 1.15v you should stay away from the volt mod.

2- If you want to decrease the heat use a good thermal compound instead such as arctic silver 5

[naton]

Update: I did vid4 mod, its stable on all multis - even 10x200@0,9V.

Is there any way to confirm mod is a success, except lower temp? Coretemp is showing the same voltage before and after the mod, but I did one test:
- setting voltage at 1.1V (cpugenie) - 0,2V (real voltage 0,9V), start temp 50 degrees and running stress test for 1 minute -> final temperature is 65 degrees
- seting voltage at 1,125V (real voltage 1,125V), start temp 50 degrees and running stres test for 1 minute -> final temperature 80 degrees

OH .. I forgot to plug in cpu fan connector, thats why temperatures are so high. Disasembling notebook is a real pain in the - I had to get off every single part to get to the cpu I dont think I will be doing that again - cpu will be a little hot without a fan (but at 0,9V at 2000mhz the temp shouldnt exceed 80 - tmax is 105). It idles at 40 (0,9V@1200mhz). I will post pics of my notebooks mobo later, maybe moral hazard will spoot the name of PLL.

Edit: pics of notebook motherboard: http://fantek.shrani.si/?cq71 (sorry for large size and bad quality)

to check the success of the mod do the following:
1- take a specific multiplier (e.g. x10)
2- let say that x10 is stable with a minimim vcore of 1v without mod
Selecting 1v after mod will crash the laptop
if the laptop crash, it means you did the mod properly.

[juliobbv]

Hi guys, last Saturday I did the VID4-VID1 mod on my XPS M1210 and I'm getting some mixed results, the problem I have is that some voltages that shouldn't be changed were modified.

For example, before the mod my T7200 was stable at 10x@0.950 V, which is strange because according to the attached picture, it should remain unchanged. It's the same story with the other voltages, 12x@1.037 V now is freezing. Maybe something is interfering with the VIDs which makes this mod not viable.

Thanks for your attention.

[zorror]

Hi guys, last Saturday I did the VID4-VID1 mod on my XPS M1210 and I'm getting some mixed results, the problem I have is that some voltages that shouldn't be changed were modified.

For example, before the mod my T7200 was stable at 10x@0.950 V, which is strange because according to the attached picture, it should remain unchanged. It's the same story with the other voltages, 12x@1.037 V now is freezing. Maybe something is interfering with the VIDs which makes this mod not viable.

Thanks for your attention.

If you connected VID4 to VID1, those voltages you mentioned should remain unchanged, at least according to my tests. Did you insulate the wire, since VID4 pin hole is in between many other pin holes? I have used Scotch tape to trace the wire, sticking the tape onto socket where the wire is.

Did your mod freeze immediately at those voltages? Did the other voltages work as expected and did you notice lowered temperature at some? I have also tried VID to VID mods if you read my last post, but they have crashed later at any voltage for no reason. Have you read someone having this mod fully working? People in this thread have only connected multiple VID's to VCC or VSS simultaneously but not VID to VID (unless I missed something).

[juliobbv]

If you connected VID4 to VID1, those voltages you mentioned should remain unchanged, at least according to my tests. Did you insulate the wire, since VID4 pin hole is in between many other pin holes? I have used Scotch tape to trace the wire, sticking the tape onto socket where the wire is.

Did your mod freeze immediately at those voltages? Did the other voltages work as expected and did you notice lowered temperature at some? I have also tried VID to VID mods if you read my last post, but they have crashed later at any voltage for no reason. Have you read someone having this mod fully working? People in this thread have only connected multiple VID's to VCC or VSS simultaneously but not VID to VID (unless I missed something).

Hi zorror, I only used some inductor wire to connect the VIDs, making sure I only peeled off enough to make contact between those holes.

The temps do seem to match the new VIDs, e.g. 1.0125 V is 3 °C lower than 0.950 V at 6x with OCCT, so is 1.025 V. Both 1 V and 1.0375 V temps are higher than 0.950 V.

I think I'm the first to do this mod sort of successfully, maybe this problem is related to yours. The only case I read someone attempted the mod failed too, he was ivantagan from the RMClock forums http://forum.rightmark.org/topic.cgi?id=6:1455.

[naton]

miguelcba21
there was a mistake in my last post regarding the volt mod that you can do. Below are the corrected mods:

[naton]

Hi guys, last Saturday I did the VID4-VID1 mod on my XPS M1210 and I'm getting some mixed results, the problem I have is that some voltages that shouldn't be changed were modified.

For example, before the mod my T7200 was stable at 10x@0.950 V, which is strange because according to the attached picture, it should remain unchanged. It's the same story with the other voltages, 12x@1.037 V now is freezing. Maybe something is interfering with the VIDs which makes this mod not viable.

Thanks for your attention.

1- Why did you connect VID4 to VID1? The right connections are:
VID + Vcc to lower the voltage
VID + Vss to rise the voltage

2- The values shown in your Excel picture seems to be wrong. When VID4 is connected to a Vcc this what happens:
0.9500v to 1.1000v become 0.7500v to 0.9000v
1.1125v to 1.3000v remain the same

3- If you T7200 is stable at 0.9500 before mod, after mod you should use 1.1125v to have a stable system. Same for x12. This is because with the mod you lose access to the vcores between 0.9125 and 1.1000v.
12x@1.037 V crash because 1.0375v after mod = 0.8375v

[naton]

I tried that, but still no change.
I will try to get a secund socket p cpu somewhere, to test it in my laptop.

Edit: Its not the cpu, because i tried t5470 and it also doesnt work
I can see default copaq start screen, but its not backlit, very strange. If I try to hook up external screen via VGA, its no signal. I hope i didnt overcook graphic card (4500hd) which shares heatsink with cpu, and Cpu had more than 80 degrees (with no fan).

My guess would be that the intel graphics is OK. A lapt6op with a faulty graphics usually turns ON with either a black screen, or most often white screen or a screen with artifacts.
if you haven't fixed your laptop yet try the following (the order is different to the one described by moral hazard):
1- turn laptop off
2- unplug power cord
3- remove battery
4- remove any cpu mod
5- remove the cmos battery for few minutes (sometimes few seconds are enough, but to be in the safe side remove it for 10 minutes).
6- put everything back and test.

[miguelcba21]

Thanks Naton, actually i was going to post because i´ve a doubt when i checked with celeron´s datasheet and the mods posted undervolted the processor instead of overvolt. I also read that the max voltage for celeron is 1.30V according to datasheet.
When you checked the celeron 530 that you overclocked with rmclock the voltage was 1.225? I think that maybe its variable within diferent celerons.
I´ll try soon, then i´ll tell you if i´succeed. (i must do it in total peace, hehe no mistakes are allowed, neither static electricity )
I can´t pass 58º core temp with 166 bsel mod, so i think that i´ve a good cooling to make overvolting and 200mhz bsel. What´s the increase of the voltage that you think it´s reasonable?

[zorror]

1- Why did you connect VID4 to VID1? The right connections are:
VID + Vcc to lower the voltage
VID + Vss to rise the voltage

2- The values shown in your Excel picture seems to be wrong. When VID4 is connected to a Vcc this what happens:
0.9500v to 1.1000v become 0.7500v to 0.9000v
1.1125v to 1.3000v remain the same

3- If you T7200 is stable at 0.9500 before mod, after mod you should use 1.1125v to have a stable system. Same for x12. This is because with the mod you lose access to the vcores between 0.9125 and 1.1000v.
12x@1.037 V crash because 1.0375v after mod = 0.8375v

He connected VID4 to VID1 because he was trying to do another mod that has some advantages over connecting VID to VCC or VSS. I tried that too, see my post. Do you have any idea why these mods doesn't work properly (VID to VID mod, or the other mod I tried)?