Well bios obviously shows wrong processor since it was made before PIII came out. Bios shows lower frequenc because high speed kicks in later in Windows.
As to the powerleap utility display, it looks like SS has kicked in during the utility was running because the display is inconsistent. It got the multipler from the lower speed and fsb and clock frequency from the higher speed.
CPUZ looks correct.
IBM Thinkpad 600E bios mod for processor update
When doing upgrades it would be nice to know how the performance increases. I found these practical pages for punishing the processor load:
http://pifast.hexus.net/pifast.php
- download & instructions
- run the test just as such and comment your results
P3 500 should go somewhere 310-340 seconds.
I had a plan to run the TP just as eprom emulator with trace but I noticed
that the emulator hw eats all the power and 100% processor usage with P3 500. OS is XP SP1 and no other sw running but the emulator.
http://pifast.hexus.net/pifast.php
- download & instructions
- run the test just as such and comment your results
P3 500 should go somewhere 310-340 seconds.
I had a plan to run the TP just as eprom emulator with trace but I noticed
that the emulator hw eats all the power and 100% processor usage with P3 500. OS is XP SP1 and no other sw running but the emulator.
I think you must have something wrong in your setup (L2 off?), because
Pifast 125,56 s PIII-750@648MHz (108*6)
Pifast 106.01 s PIII-750@810MHz (108*7.5)
Pifast 103 seconds PIII-700@829MHz.
Pifast 125,56 s PIII-750@648MHz (108*6)
Pifast 106.01 s PIII-750@810MHz (108*7.5)
Pifast 103 seconds PIII-700@829MHz.
Last edited by Sharedoc on Sun May 01, 2005 6:05 pm, edited 1 time in total.
OK, my 750 is unstable at 108FSB at the moment. Blue screens out of Prime95 and other high load tests. When I have more time I'm going to drop the Vcore, try and improve the cooling a bit and see what happens.
Thinkpad T20 - 900 MHz (Looking for 1 GHz) 512 Mb - 40Gb 5200rpm - Mini PCI wireless Mod installed behind LCD - (Looking for Slim DVDRW)
Would it be possible to increase the voltage to the cpu fan to help cool things down? My TP is a PIII 750 also and I would like to overclock it as well.
I have tried it by taking +5 volts from the USB connector and connecting through diode to the blower connector red wire. I used diode to protect the electronics controlling the blower.
Result was not good, lot more noise but no noticeable additional cooling effect.
It is my understanding that the problem is with exceeding capacity of the heat pipe (the pipe on top of the cooler assembly). When the capacity of the heat pipe is exceeded its heat transfer kind of collapses and the processor heat increases rapidly.
Result was not good, lot more noise but no noticeable additional cooling effect.
It is my understanding that the problem is with exceeding capacity of the heat pipe (the pipe on top of the cooler assembly). When the capacity of the heat pipe is exceeded its heat transfer kind of collapses and the processor heat increases rapidly.
Update.
Ok, Pad is actiing odd after dropping the VCore .20 by removing R5. Doesn't ever select the higher multiplier and has various crashes hangs and blues.
Gonna put the resistor back and try a .10 V drop. I'm also going to have a serious think about cooling sollutions.
Ok, Pad is actiing odd after dropping the VCore .20 by removing R5. Doesn't ever select the higher multiplier and has various crashes hangs and blues.
Gonna put the resistor back and try a .10 V drop. I'm also going to have a serious think about cooling sollutions.
Thinkpad T20 - 900 MHz (Looking for 1 GHz) 512 Mb - 40Gb 5200rpm - Mini PCI wireless Mod installed behind LCD - (Looking for Slim DVDRW)
Down the thread someone asked if it is possible to change the processor chip on the MMC2 module for a >850MHz PGA-type PIII processor.
A Finnish overclocker colleague removed the PIII processor from a broken MMC2 printed circuit board. He compared the pinout , turns out look identical, with the exception that Micro-PGA PIII has an additional pin seating. You can find the images here
http://www.ratol.fi/~ppiippo/s/Mobile_penat.jpg
Figures courtesy Pekka Piippo
A Finnish overclocker colleague removed the PIII processor from a broken MMC2 printed circuit board. He compared the pinout , turns out look identical, with the exception that Micro-PGA PIII has an additional pin seating. You can find the images here
http://www.ratol.fi/~ppiippo/s/Mobile_penat.jpg
Figures courtesy Pekka Piippo
-
DK6400Brian
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ShareDoc.
Interesting stuff
I wonder.
In the photo, the chips themselves looks identical.
The MMC-2 PIII's pinlayout is seen from the chip itself.
The Micro-PGA PIII chip sits on a green PCB and it's the PCB pinlayout you see.
If the chip is taken off the PCB.....wouldn't you also come to the theoretical conclusion, that they're exactly the same ?
I see a lot of work ahead.....but with the right skills and carefulness....it seems pretty obvious, that a 1 GHz PIII would work on a MMC-2 module.
My regards to your colleague
Brian
Interesting stuff
I wonder.
In the photo, the chips themselves looks identical.
The MMC-2 PIII's pinlayout is seen from the chip itself.
The Micro-PGA PIII chip sits on a green PCB and it's the PCB pinlayout you see.
If the chip is taken off the PCB.....wouldn't you also come to the theoretical conclusion, that they're exactly the same ?
I see a lot of work ahead.....but with the right skills and carefulness....it seems pretty obvious, that a 1 GHz PIII would work on a MMC-2 module.
My regards to your colleague
Brian
ThinkPad 770Z, PIII850@700, 512MB, 7K60 and 5K80GB, 13.7" SXGA 1280x1024, Running Windows 2000 SP4+
How can you change the multiplier on your CPU?Sharedoc wrote:Pifast 125,56 s PIII-750@648MHz (108*6)
Pifast 106.01 s PIII-750@810MHz (108*7.5)
Pifast 103 seconds PIII-700@829MHz.
Is it possible?
IBM ThinkPad 600E (2645-4AU) PIII 600 @ 598.2MHz /13.3"/CD-ROM/160Mb/40Gb/56k
@ [FSB_mod] => (Current ~99.7MHz)
@ [SS_mod] => Enable Intel SpeedStep technology
@ [DS_mod] => Start SpeedStep
@ [Volt_mod] => Takes 0.20 volts off Vcore (Current 1.35V)
@ [FSB_mod] => (Current ~99.7MHz)
@ [SS_mod] => Enable Intel SpeedStep technology
@ [DS_mod] => Start SpeedStep
@ [Volt_mod] => Takes 0.20 volts off Vcore (Current 1.35V)
As I've wrote several messages ago, on my TP SpeedStep enabled after Windows complitely boot, but not depend on how it boot (battery or AC adaptor) it boots in low speed, than hi speed enable.Sharedoc wrote:7.5 and 6 are the two SpeedStep multipliers for PIII-750
How can I boot on battery only in low spped, but on AC adaptor in full speed?
Thanks!
IBM ThinkPad 600E (2645-4AU) PIII 600 @ 598.2MHz /13.3"/CD-ROM/160Mb/40Gb/56k
@ [FSB_mod] => (Current ~99.7MHz)
@ [SS_mod] => Enable Intel SpeedStep technology
@ [DS_mod] => Start SpeedStep
@ [Volt_mod] => Takes 0.20 volts off Vcore (Current 1.35V)
@ [FSB_mod] => (Current ~99.7MHz)
@ [SS_mod] => Enable Intel SpeedStep technology
@ [DS_mod] => Start SpeedStep
@ [Volt_mod] => Takes 0.20 volts off Vcore (Current 1.35V)
Dr Morg,
Sorry but your English is sometimes difficult to understand.
Unfortunately the SpeedStep mod seems to work only when booting with battery (at the later stages of the boot). The reason is unknown but I wellcome any effort to solve it.
Whatabout if we mod the AC power unit to give signal that AC power is off? Hmmm, this is worth thinking and checking...
Sorry but your English is sometimes difficult to understand.
Unfortunately the SpeedStep mod seems to work only when booting with battery (at the later stages of the boot). The reason is unknown but I wellcome any effort to solve it.
Whatabout if we mod the AC power unit to give signal that AC power is off? Hmmm, this is worth thinking and checking...
I went through the MMC2 connector signals and I cannot find a signal telling that laptop is running on AC or Battery.
So there are at least two altenatives left
(1) AC power detector generating internal signal in the motherboard
(2) Signal coming from the battery
Battery contains a processor that communicates via SMbus serial link using the middle two pins in the 4-pin battery connector.
I believe(2) makes sense, since I believe it is the embedded processor on the lower level of the mainboard that is contrlolling the CPU core temperature and is responsible of throttling. I believe it is this embedded processor that controls also AC/battery status.
Hmmm, have to think what this observation means ...
So there are at least two altenatives left
(1) AC power detector generating internal signal in the motherboard
(2) Signal coming from the battery
Battery contains a processor that communicates via SMbus serial link using the middle two pins in the 4-pin battery connector.
I believe(2) makes sense, since I believe it is the embedded processor on the lower level of the mainboard that is contrlolling the CPU core temperature and is responsible of throttling. I believe it is this embedded processor that controls also AC/battery status.
Hmmm, have to think what this observation means ...
Just a quick note, been too busy to play laptops much recently. However my 750 when speedstep modded and 108 fsb modded will boot at x7.5 on AC, even with the battery completely removed.Sharedoc wrote:Dr Morg,
Sorry but your English is sometimes difficult to understand.
Unfortunately the SpeedStep mod seems to work only when booting with battery (at the later stages of the boot). The reason is unknown but I wellcome any effort to solve it.
Whatabout if we mod the AC power unit to give signal that AC power is off? Hmmm, this is worth thinking and checking...
I'm gonna finish up the site I've written about all this over the next week hopefully and get it live. I've just picked up a T20 to play with so I'll be selling the 600E (reverted back to a PII 400) to fund a 1GHz CPU and the MPCI wireless card I intend to implant.
I will have a Cel 600 and PIII 750 speedstep modded and volt dropped by .05 if anyone's interested.
PS - resoldering surface mount resistors is a bitch!
Thinkpad T20 - 900 MHz (Looking for 1 GHz) 512 Mb - 40Gb 5200rpm - Mini PCI wireless Mod installed behind LCD - (Looking for Slim DVDRW)
