Upgrading T21 CPU to 1GHz

Message

Illah · #1 Post by **Illah** » Mon Jul 24, 2006 11:59 am

I've searched already and...

1) Yes, I'm already planning to max to 512MB RAM
2) I already have a decently quick 32GB drive

...so all that's left is the CPU. They're pretty cheap on eBay, like as low as $10, so cost isn't really an issue. I just need to know what kind of processor to get. I'm very experienced in the desktop world but a little confused on laptops. I know it runs a 100MHz FSB so I'd need a chip with a multi based on that, but am I looking for a Pentium M?

Thanks,

--Illah

#2 Post by **AlphaKilo470** » Mon Jul 24, 2006 12:51 pm

Since the T21 and T22 both use the same chipset, you might be able to use the 1ghz Pentium III from a T22 but I'm not too sure on this.

Thinkpaddict · #3 Post by **Thinkpaddict** » Mon Jul 24, 2006 1:07 pm

Illah wrote:I've searched already and...

1) Yes, I'm already planning to max to 512MB RAM
2) I already have a decently quick 32GB drive

...so all that's left is the CPU. They're pretty cheap on eBay, like as low as $10, so cost isn't really an issue.
I just need to know what kind of processor to get.
I'm very experienced in the desktop world but a little confused on laptops.
I know it runs a 100MHz FSB so I'd need a chip with a multi based on that, but am I looking for a Pentium M?

Thanks,

--Illah

You need to get an SL53S.
Plenty of them on eBay right now:
http://search.ebay.com/SL53S_W0QQsacatZQ2d1

Make sure to put some Arctic Silver or the like, and monitor your temperatures for a while after installation.

Have fun

skou · #4 Post by **skou** » Mon Jul 24, 2006 1:31 pm

Illah, send a PM to Xaotic, over at OCF, and see if he has any left.

Someone over there said they had some, so you might want to post in the lappy classies section, and see, too.

steve

skou · #5 Post by **skou** » Mon Jul 24, 2006 1:32 pm

Oh, welcome to the Thinkpad Forum!

steve

Illah · #6 Post by **Illah** » Mon Jul 24, 2006 2:18 pm

Sweet, thanks all - that's what I needed to know. Right now I have an 850MHz chip so I prob won't upgrade unless I get a really hot deal, but good to know none the less!

And yeah, I'll PM that guy on OCF - I've been on there for years.

Take care,

--Illah

skou · #7 Post by **skou** » Mon Jul 24, 2006 2:24 pm

I know. So have I.

steve

skou · #8 Post by **skou** » Mon Jul 24, 2006 2:33 pm

Illah, some T20-22 mobos only support up to an 800 CPU, and the rest will support the 1000MHz. Since your board is running the 850, it will run the 1000. (Is it running the 850 at 850? If not, it won't run the 1000.)

If your board doesn't support a CPU above 800 MHz, it will still run, but will run at 800, even with a 850,900 or 1000 in. (Yes, I did find out the hard way.)

steve

Illah · #9 Post by **Illah** » Mon Jul 24, 2006 5:17 pm

Yeah, it's verified at 850MHz/100MHz FSB by CPU-Z. Good to know it'll run 1GHz then! For the right price it doesn't seem like that bad of a deal even though it's only 150MHz, it's about 18% of a boost.

So with speedstep will it drop just as low as the 850 while on battery power? I think mine drops to 600MHz or 700MHz, I forget exactly.

--Illah

skygodtj · #10 Post by **skygodtj** » Mon Jul 31, 2006 8:27 am

Over on the T4x forum (might have been the 600/770 forum), someone had posted about a SpeedStep app for XP, other than BigBlue's... it's here:

http://www.diefer.de/speedswitchxp/index.html

I d/l'ed it on my T23 and ran it, it changed the SpeedStep to a more dynamic state, allowing the speed to change from the 1.2GHz all the way down to 146mhz!! In the System Tray, the display also shows the cpu load. I like it, and will load it on my other T23's when I get home. It's really for XP, tho I dont know if it'll run on 2000.

TJ

clayton.bigsby · #11 Post by **clayton.bigsby** » Tue Aug 01, 2006 3:38 pm

skou wrote:Illah, some T20-22 mobos only support up to an 800 CPU, and the rest will support the 1000MHz. Since your board is running the 850, it will run the 1000. (Is it running the 850 at 850? If not, it won't run the 1000.)

If your board doesn't support a CPU above 800 MHz, it will still run, but will run at 800, even with a 850,900 or 1000 in. (Yes, I did find out the hard way.)

steve

Hi. My T21 currently runs at 800MHz. How do I find out if my mobo is one of those that does not support 1GHz?

skou · #12 Post by **skou** » Tue Aug 01, 2006 3:53 pm

The only way I know, is to try a different CPU.

I'm pretty sure that you can tell, by the 3 digit number, after the 2647. 2647-***, but I don't know it.

steve

tom_k · #13 Post by **tom_k** » Wed Aug 02, 2006 7:59 pm

upgrading cpu from 800 to 1000 MHz
i´d also change the fan assembly .

FRU 26P9317 with copper plate in my T22 shows remakable less activity compared to my T21 ,
even the T23 had to fight harder with those temperatures we had in Germany last weeks.

btw :
"SL53S" , will a SL5TF also work ?
according to intel`s data shet ,
the only difference to me seems to be the lower junction temperature of 92°

regards tom_k
___
T23 98se.. 2x512MB 250Wh etc

JonathanW · #14 Post by **JonathanW** » Mon Aug 14, 2006 12:45 pm

Just to confirm that the SL5TF will work just fine. That's what has been running in one of my T21's here for the last year or so!

Jonathan

clayton.bigsby · #15 Post by **clayton.bigsby** » Wed Oct 18, 2006 1:03 pm

I just want to update this thread because I have successfully upgraded my T21 (2647-4BU) from 800MHz to 1GHz (though XP says its 995MHz). I was afraid it wouldn't be supported, but the chance anyway when I came across an SL53S for cheap on ebay. Also, someone said in another thread that the reason some t20s aren't running at full 1GHz is due to a BIOS issue. Upgrading the BIOS may work.

I also just got the T22 heatsink/fan as suggested, but I've yet to install it. That fan is definitely different from my T21 fan. Its got a much more polished surface where it makes contact with the chip.

cyanide959 · #16 Post by **cyanide959** » Sun Nov 12, 2006 12:49 am

hi, i also think i am in the market for a new chip. see my t22 acts up sometimes when i am surfing and playing music simultaneously. the music gets washed out at times and i am using tools such as speed fan to monitor my chip and temps. i do see the cpu is jumping up and down in terms of usage at times so i lowered the stepspeed in bios to max battery and it has resolved 75% of the washing and taken the tmp from 60c to 50c. also just recently took my t22 apart and seen the thermal grease was not even present any where on the hsf, just around the edges. seems like the as5 i put on helped a little too, took the temp to 45c, but i think the chip is basically shot. is there a special name i can search for on ebay for new chip. do i have to get a particular model of p3? any help would be appreciated.

#17 Post by **rkawakami** » Sun Nov 12, 2006 2:32 am

cyanide959 wrote:hi, i also think i am in the market for a new chip. see my t22 acts up sometimes when i am surfing and playing music simultaneously.

Could be a number of issues at work here (software and hardware). The best thing that I can suggest is to run some diagnostic programs on the hardware before you start buying parts for the system. I'm assuming you don't have the Windows version of PC Doctor on your system since it shipped with Windows 98 and your .sig says XP. Refer to this post of mine:

PC Doctor for T2x

You can download three programs from IBM's site, which when each of them are executed will create a bootable floppy disk. You can also get a CD image (.ISO file) of the diagnostic program. Using that program you can execute the CPU/Coprocessor test to see if you are having problems with the CPU. There is an option in the program which may benefit you; pressing the F2 key after you have selected a test to run will bring up a test option menu. One of the things you can specify is the Set Pass Count value. That tells the program to repeat your selected tests that many times. Quite useful to "burn-in" a system.

As it appears that you may also be having a thermal problem, PC Doctor also has tests for the fan and the thermal sensors. Actually, that program contains test procedures for almost every piece of hardware in your system.

cyanide959 wrote:is there a special name i can search for on ebay for new chip. do i have to get a particular model of p3? any help would be appreciated.

Most of the listings on eBay will either have IBM's FRU number or the Intel processor codename as part of the title. For the T22 900Mhz CPU, the IBM FRU is 08K3346. This is information from the Hardware Maintenance Manual. I don't see any option for 933Mhz in that manual or in IBM's obsolete system descriptions manual (tawbook). According to what I have found online, Intel's codename for the 900Mhz P3-M processor for the T22 is an SL53T. Please double-check my information before you commit to buy.

(Thanks for updating your profile!)

cyanide959 · #18 Post by **cyanide959** » Mon Nov 13, 2006 2:05 am

i have pc doctor on my desktop. once i install it on my t22 and do some testing, i'll post my results this upcoming weekend. now i did find a 1ghz SL53S on forums that should work in case my processor is faulty. thanks for your help, very much appreciated, oh and i went to your other thread, i downloaded that mobilemeter.

jruschme · #19 Post by **jruschme** » Mon Nov 13, 2006 9:16 am

skygodtj wrote:Over on the T4x forum (might have been the 600/770 forum), someone had posted about a SpeedStep app for XP, other than BigBlue's... it's here:

http://www.diefer.de/speedswitchxp/index.html

I d/l'ed it on my T23 and ran it, it changed the SpeedStep to a more dynamic state, allowing the speed to change from the 1.2GHz all the way down to 146mhz!!

Actually, I don't think that's really true. The CPU itself only has two speeds- fast and slow (i.e., 850/700, 700/550, etc.). The larger range of dynamic speeds appears to be an artifact of what algorithm SpeedSwitchXP uses to calcualte the speed.

IIRC, there are three algorithms, two calculated, one which requires asking Windows what it thinks the speed is. Each appears to give more or less accurate results, depending on the hardware. At least one gives very "strange" results for cases of extreme high and extreme low activity. (For instance, on my T20 with an 850mhz processor, I've seen speeds reported as high as 1.2ghz!)

I believe that Mobilmeter uses a similar set of algorithms and can, if so configured, give equally interesting results.

cyanide959 · #20 Post by **cyanide959** » Mon Nov 13, 2006 4:22 pm

i have the stepspeed turned off in bios and change the customized speed to medium. mobile meter and cpu-z are reporting 700mhz which is right because the multiplier is set from 9 to 7. justing testing how it runs when its slower. now what is goin on when u go to system properties/system device where is displays your cpu mhz, it shows 354mhz??? just a little weird why xp is saying that. any thoughts or is it just xp being retarded?

nikki605 · #21 Post by **nikki605** » Sat Dec 09, 2006 10:55 am

I've searched through and read several topics on this forum about upgrading the CPU in a T21 using the SL53S 1GHz chip. After reading several posts, however, I'm confused about being able to determine if the particular mobo in my T21 will run a 1GHz processor. Can anyone please clear that up for me? I've searched Ebay and found a few, but the prices appear to be up a little bit from some of the other posts I've read here.

I've downloaded and installed CPU-Z, but looking at the results, I don't know if I can interpret them to tell me any more than what the mobo/CPU currently are, as opposed to what the mobo can run.

btw - I can't believe I've owned my T21 for 5 years, Googled many Thinkpad issues and just yesterday, managed to find this forum! You guys are great

! I found more useful information here than I have at most other web sites combined - CPU-Z, MobileMeter, power cycling problems (which I've started to recently have), suspected overheating (I went out and bought some AS5), found out about and downloaded the HMM from IBM's web site, and reminded me that I had PC Doctor sitting here all along and I ought to get it out and use it (it showed me that I did not have a CPU fan problem and probably all I needed to do was apply some AS5 to help cool down the CPU). Kudos

nikki605 · #22 Post by **nikki605** » Wed Dec 13, 2006 10:11 am

I bought an SL53S on Ebay ($25, inc. shipping) to try my luck. I'll monitor the CPU temp with mobilemeter to see how it does. The 800MHz CPU runs around 40°C when just idling. The fan comes on at around 75°C under load and begins to cool down right away. If the temps are up significantly, or if the fan cannot bring the temp down under load, I'll look for a T22 heatsink/fan. I've already got AS5 to put on the 1GHz CPU and the T21 sitting on a Targus Chill Mat.

I already have the latest BIOS update installed - 1.16

Thanks for everyone's great info on doing this upgrade!

nikki605 · #23 Post by **nikki605** » Mon Dec 18, 2006 8:42 pm

Got the SL53S today. Installed it in the socket, applied some AS5 and booted it up. It came right up with no problem.

Win XP and CPU-Z both report the CPU speed as 995 MHz. MobileMeter reports 1 GHz, even. The CPU temp when idling is about 7-10° higher than before. Under load, the fan came on between 75-80°C but could only drop the temp to around 70°C. Not too bad. I'll keep monitoring to see if I should go to a T22 fan/heatsink assembly.

Now if I can just figure out why it randomly powers off.

helmet4000 · #24 Post by **helmet4000** » Fri Jan 19, 2007 10:51 am

I did the 1ghz upgrade from 800mhz (I do some statistical work so 200mhz makes a difference).

Powerleap's inspecs says its operating at 995mhz.

When I first installed it, it was at 697mhz, but I changed a bios setting concerning cpu identification and it now seems peppier.

-tom volscho
Manufacturer : IBM
Model : 26478AU Rev. Not Available
CPU Slot/Socket Type : BGA/Micro-PGA
Chipset Vendor : Intel i440BX/ZX Rev. C1
Bios Manufacturer : IBM
Bios Version : KZET34WW (1.16 )

Number Of Processors : 1
Type : Intel Pentium III E 1000 MHz
Package : BGA/Micro-PGA
Manufacturer Codename : Coppermine-T
Clock Speed : 995 MHz
Clock Multiplier : 10.0
Front Side Bus (FSB) Speed : 100 MHz
L2 Cache Size : 256 KBytes Stepping : cD0
Trace Width : 0.18
Microcode : 4h
Instruction Sets : MMX, SSE
Processor Throttling : SpeedStep+

furiousmonkey · #25 Post by **furiousmonkey** » Mon Jan 22, 2007 1:42 pm

BIOS Date: 04/28/04
BIOS Type: PhoenixBIOS 4.0 Release 6.0 for IBM ThinkPad
BIOS ID: IBM 26478AU BIOS Version: KZET34WW (1.16 )
Chipset: Intel 440BX/ZX rev 3
CPU: Pentium(R) III 800 Mhz

I was wondering if my T21 2647 8AU could take a 1gig chip? If it can is there a website around that has a visual step by step disassembly of a t2x?

dsigma6 · #26 Post by **dsigma6** » Mon Jan 22, 2007 2:51 pm

furiousmonkey wrote:is there a website around that has a visual step by step disassembly of a t2x?

ftp://ftp.software.ibm.com/pc/pccbbs/mo ... 2p9631.pdf

furiousmonkey · #27 Post by **furiousmonkey** » Tue Jan 23, 2007 11:18 am

If I upgrade my t21 800mhz to 1gig can I put the 800mhz p3 in my 1300i to replace its 750Mhz p3?

vlyne · #28 Post by **vlyne** » Tue Jan 23, 2007 6:51 pm

Below is my attempt at compiling a list 1Ghz CPUs for the T20/21/22 series from this site:

Part# CPU_Speed BUS_Speed Mfg_Tech Stepping Cache Package
SL58S 1 GHz 100 MHz 0.18 micron PD0 256 KB 495 pin
SL53S 1 GHz 100 MHz 0.18 micron PD0 256 KB 495 pin
SL5TB 1 GHz 100 MHz 0.18 micron BD0 256 KB BGA2
SL54F 1 GHz 100 MHz 0.18 micron BD0 256 KB BGA2
SL5TF 1 GHz 100 MHz 0.18 micron PD0 256 KB Micro-PGA2

I'm not sure if the 3rd and 4th chips with the BGA2 package type will work? but the rest would seem to be suitable from what's been trialled by others.
Cheers

nikki605 · #29 Post by **nikki605** » Sun Feb 04, 2007 2:17 pm

Following the recommendations on this forum, I bought a T22 heatsink/fan assembly (FRU P/N : 26P9317) on Ebay ($4.25 + shipping) and installed it with no problem. The only modification was to use a pair of scissors to trim off some of the Keyboard CRU Insulator so it wasn't resting on the heatsink, which is a little larger than the T21 heatsink.

It passed the PC Doctor fan test and keeps the CPU much cooler - 63°C when idle and the fan comes on (low speed) at about 79°C under heavy usage and almost immediately drops to about 70°C. So far, it has not needed to run at high speed.

goofyGAguy · #30 Post by **goofyGAguy** » Sun Feb 04, 2007 4:31 pm

63 C at idle?

My T23 runs 20 degrees cooler than that.

Upgrading T21 CPU to 1GHz

Upgrading T21 CPU to 1GHz

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Another Successful T21 CPU Upgrade To 1 GHz!

success

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Installed a T22 Heatsink/Fan Assembly After CPU Upgrade

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