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ThinkPad T40 stopped working, Freezes
ThinkPad T40 stopped working, Freezes
Hi,
I was using my TP yesterday evening and suddenly it froze on WIN desktop. I tried changing HD, RAM and CPU but it turns on and then freeze or only does not. I noticed that if I plug the AC Adapter it stucks, if I run on battery it works for few minutes. (I tried with/without battery) I tested the Adapter on a X41 and it works.
What can I do?
P.S. does a T42P mobo fit in a T40 with XGA screen?
Thanks in advance, waiting your answers.
Best Regards.
I was using my TP yesterday evening and suddenly it froze on WIN desktop. I tried changing HD, RAM and CPU but it turns on and then freeze or only does not. I noticed that if I plug the AC Adapter it stucks, if I run on battery it works for few minutes. (I tried with/without battery) I tested the Adapter on a X41 and it works.
What can I do?
P.S. does a T42P mobo fit in a T40 with XGA screen?
Thanks in advance, waiting your answers.
Best Regards.
W520 4284-A54 WIN 10 FHD upgrade
T43 2668-WDA 15'' IPS Flex-View WIN Vista SP2
X41 2525-AE5 WIN Vista SP2
T40 2373-42G WIN Vista SP2 *DEAD*
T520 4242-AK7 WIN 10 *ON SALE*
X220 4290-Y11 WIN 10 *SOLD*
X61 7674-BA6 WIN 7 *SOLD*
T60 2007-WJJ 15'' IPS Flex-View WIN 7 *SOLD*
T400 6475-J92 WIN 7 *SOLD*
T43 2668-WDA 15'' IPS Flex-View WIN Vista SP2
X41 2525-AE5 WIN Vista SP2
T40 2373-42G WIN Vista SP2 *DEAD*
T520 4242-AK7 WIN 10 *ON SALE*
X220 4290-Y11 WIN 10 *SOLD*
X61 7674-BA6 WIN 7 *SOLD*
T60 2007-WJJ 15'' IPS Flex-View WIN 7 *SOLD*
T400 6475-J92 WIN 7 *SOLD*
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- Senior ThinkPadder
- Posts: 2504
- Joined: Tue Sep 22, 2015 10:59 pm
- Location: Toronto, Canada
Re: ThinkPad T40 stopped working, Freezes
that seems like a southbridge failure or short circuit to me. I think you should try to boot it off the battery without palmrest and minipci card and try the temperature of the southbridge. My A31p motherboard has the same issue and you can feel like the southbridge is reaching to boiling hot before it freezes.
Yes a T42p motherboard will fit if you don't care about the fingerprint sensor but why would you use XGA display for that motherboard?
Yes a T42p motherboard will fit if you don't care about the fingerprint sensor but why would you use XGA display for that motherboard?
Dell Lat CP MMX-233 64mb 40gb W2k
600 PII-266 416mb 40gb WXP
T23 PIII 1.13ghz 1gb W7
Precision M4300 X9000 8gb 160gb WUXGA Ultrasharp fp W10
T530i 15.6" i7 16gb fp W10
UXGA:
A30p PIII 1.2 1gb W7 (IDTech)
T43p 2.26 2gb fp W10 (Sharp)
Lat C840 P4-2.5 2gb 60gb W7 (Ultrasharp)
600 PII-266 416mb 40gb WXP
T23 PIII 1.13ghz 1gb W7
Precision M4300 X9000 8gb 160gb WUXGA Ultrasharp fp W10
T530i 15.6" i7 16gb fp W10
UXGA:
A30p PIII 1.2 1gb W7 (IDTech)
T43p 2.26 2gb fp W10 (Sharp)
Lat C840 P4-2.5 2gb 60gb W7 (Ultrasharp)
Re: ThinkPad T40 stopped working, Freezes
I try it now.kfzhu1229 wrote:that seems like a southbridge failure or short circuit to me. I think you should try to boot it off the battery without palmrest and minipci card and try the temperature of the southbridge. My A31p motherboard has the same issue and you can feel like the southbridge is reaching to boiling hot before it freezes.
Yes a T42p motherboard will fit if you don't care about the fingerprint sensor but why would you use XGA display for that motherboard?
I would use a XGA because it is the Screen I have. I use this TP on torrent and photo storage... so the screen is not important to me.
I'll let you know. Thanks.
Edit: I'm Trying now it seems it goes, i'm using it without palmrest but gave problem at the startup...
I'll tell you if it freezes
Thanks
W520 4284-A54 WIN 10 FHD upgrade
T43 2668-WDA 15'' IPS Flex-View WIN Vista SP2
X41 2525-AE5 WIN Vista SP2
T40 2373-42G WIN Vista SP2 *DEAD*
T520 4242-AK7 WIN 10 *ON SALE*
X220 4290-Y11 WIN 10 *SOLD*
X61 7674-BA6 WIN 7 *SOLD*
T60 2007-WJJ 15'' IPS Flex-View WIN 7 *SOLD*
T400 6475-J92 WIN 7 *SOLD*
T43 2668-WDA 15'' IPS Flex-View WIN Vista SP2
X41 2525-AE5 WIN Vista SP2
T40 2373-42G WIN Vista SP2 *DEAD*
T520 4242-AK7 WIN 10 *ON SALE*
X220 4290-Y11 WIN 10 *SOLD*
X61 7674-BA6 WIN 7 *SOLD*
T60 2007-WJJ 15'' IPS Flex-View WIN 7 *SOLD*
T400 6475-J92 WIN 7 *SOLD*
-
- Senior ThinkPadder
- Posts: 2504
- Joined: Tue Sep 22, 2015 10:59 pm
- Location: Toronto, Canada
Re: ThinkPad T40 stopped working, Freezes
For my A31p, every time before it freezes the southbridge got boiling hot so just a reminder be careful about the contact if you are using your finger to try the temperature (I suggest you to try it with a piece of cloth so that it does not directly burn you)
Dell Lat CP MMX-233 64mb 40gb W2k
600 PII-266 416mb 40gb WXP
T23 PIII 1.13ghz 1gb W7
Precision M4300 X9000 8gb 160gb WUXGA Ultrasharp fp W10
T530i 15.6" i7 16gb fp W10
UXGA:
A30p PIII 1.2 1gb W7 (IDTech)
T43p 2.26 2gb fp W10 (Sharp)
Lat C840 P4-2.5 2gb 60gb W7 (Ultrasharp)
600 PII-266 416mb 40gb WXP
T23 PIII 1.13ghz 1gb W7
Precision M4300 X9000 8gb 160gb WUXGA Ultrasharp fp W10
T530i 15.6" i7 16gb fp W10
UXGA:
A30p PIII 1.2 1gb W7 (IDTech)
T43p 2.26 2gb fp W10 (Sharp)
Lat C840 P4-2.5 2gb 60gb W7 (Ultrasharp)
Re: ThinkPad T40 stopped working, Freezes
Yeah, netburst bus chips get pretty hot (and usually cooled with heatsinks that are too small). What a shame.kfzhu1229 wrote:For my A31p, every time before it freezes the southbridge got boiling hot so just a reminder be careful about the contact if you are using your finger to try the temperature (I suggest you to try it with a piece of cloth so that it does not directly burn you)
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- Senior ThinkPadder
- Posts: 2504
- Joined: Tue Sep 22, 2015 10:59 pm
- Location: Toronto, Canada
Re: ThinkPad T40 stopped working, Freezes
I know that fact. The netburst southbridge get hot to the touch, but it is not hot enough to burn your hands. And that's even true to my OptiPlex GX520!micrex22 wrote:Yeah, netburst bus chips get pretty hot (and usually cooled with heatsinks that are too small). What a shame.
What I was trying to say was my motherboard was just defective. The southbridge heats up to just the same burning hot and stops charging battery even if you leave it as a battery charger!
Dell Lat CP MMX-233 64mb 40gb W2k
600 PII-266 416mb 40gb WXP
T23 PIII 1.13ghz 1gb W7
Precision M4300 X9000 8gb 160gb WUXGA Ultrasharp fp W10
T530i 15.6" i7 16gb fp W10
UXGA:
A30p PIII 1.2 1gb W7 (IDTech)
T43p 2.26 2gb fp W10 (Sharp)
Lat C840 P4-2.5 2gb 60gb W7 (Ultrasharp)
600 PII-266 416mb 40gb WXP
T23 PIII 1.13ghz 1gb W7
Precision M4300 X9000 8gb 160gb WUXGA Ultrasharp fp W10
T530i 15.6" i7 16gb fp W10
UXGA:
A30p PIII 1.2 1gb W7 (IDTech)
T43p 2.26 2gb fp W10 (Sharp)
Lat C840 P4-2.5 2gb 60gb W7 (Ultrasharp)
Re: ThinkPad T40 stopped working, Freezes
Thank you all for answering. I'm attempting to make it works. I tried as you said, the chip next to CPU heats up and the one under the Wireless Card does not. I have been using this T40 with 2 stick 2x1 GB PC3200 DDR-400 and it worked, If use use them now it surely freeze... I put in his original 512 MB stick and it seem it is not freezing but sometimes it doesn't boot up (Black Screen). I also put in his 1.6 GHz CPU instead of my Pentium M 725 but I think it is not the issue.kfzhu1229 wrote:I know that fact. The netburst southbridge get hot to the touch, but it is not hot enough to burn your hands. And that's even true to my OptiPlex GX520!micrex22 wrote:Yeah, netburst bus chips get pretty hot (and usually cooled with heatsinks that are too small). What a shame.
What I was trying to say was my motherboard was just defective. The southbridge heats up to just the same burning hot and stops charging battery even if you leave it as a battery charger!
Have I to change the mobo or I can try other things before ?
Edit: Maybe CMOS Battery can affect?
W520 4284-A54 WIN 10 FHD upgrade
T43 2668-WDA 15'' IPS Flex-View WIN Vista SP2
X41 2525-AE5 WIN Vista SP2
T40 2373-42G WIN Vista SP2 *DEAD*
T520 4242-AK7 WIN 10 *ON SALE*
X220 4290-Y11 WIN 10 *SOLD*
X61 7674-BA6 WIN 7 *SOLD*
T60 2007-WJJ 15'' IPS Flex-View WIN 7 *SOLD*
T400 6475-J92 WIN 7 *SOLD*
T43 2668-WDA 15'' IPS Flex-View WIN Vista SP2
X41 2525-AE5 WIN Vista SP2
T40 2373-42G WIN Vista SP2 *DEAD*
T520 4242-AK7 WIN 10 *ON SALE*
X220 4290-Y11 WIN 10 *SOLD*
X61 7674-BA6 WIN 7 *SOLD*
T60 2007-WJJ 15'' IPS Flex-View WIN 7 *SOLD*
T400 6475-J92 WIN 7 *SOLD*
Re: ThinkPad T40 stopped working, Freezes
Why don't you run memtestx86+?luca9903 wrote:Thank you all for answering. I'm attempting to make it works. I tried as you said, the chip next to CPU heats up and the one under the Wireless Card does not. I have been using this T40 with 2 stick 2x1 GB PC3200 DDR-400 and it worked, If use use them now it surely freeze... I put in his original 512 MB stick and it seem it is not freezing but sometimes it doesn't boot up (Black Screen). I also put in his 1.6 GHz CPU instead of my Pentium M 725 but I think it is not the issue.kfzhu1229 wrote: I know that fact. The netburst southbridge get hot to the touch, but it is not hot enough to burn your hands. And that's even true to my OptiPlex GX520!
What I was trying to say was my motherboard was just defective. The southbridge heats up to just the same burning hot and stops charging battery even if you leave it as a battery charger!
Have I to change the mobo or I can try other things before ?
Edit: Maybe CMOS Battery can affect?
http://www.memtest.org/
There could be defective memory. If not, then one of the BGA chips is at fault and has a poor connection (which would explain the intermittance).
Re: ThinkPad T40 stopped working, Freezes
I'll try Memtest. Now I pushed on the GPU and SouthBridge and seem it is working... maybe theese component are not more soldered well.micrex22 wrote:Why don't you run memtestx86+?luca9903 wrote:
Thank you all for answering. I'm attempting to make it works. I tried as you said, the chip next to CPU heats up and the one under the Wireless Card does not. I have been using this T40 with 2 stick 2x1 GB PC3200 DDR-400 and it worked, If use use them now it surely freeze... I put in his original 512 MB stick and it seem it is not freezing but sometimes it doesn't boot up (Black Screen). I also put in his 1.6 GHz CPU instead of my Pentium M 725 but I think it is not the issue.
Have I to change the mobo or I can try other things before ?
Edit: Maybe CMOS Battery can affect?
http://www.memtest.org/
There could be defective memory. If not, then one of the BGA chips is at fault and has a poor connection (which would explain the intermittance).
W520 4284-A54 WIN 10 FHD upgrade
T43 2668-WDA 15'' IPS Flex-View WIN Vista SP2
X41 2525-AE5 WIN Vista SP2
T40 2373-42G WIN Vista SP2 *DEAD*
T520 4242-AK7 WIN 10 *ON SALE*
X220 4290-Y11 WIN 10 *SOLD*
X61 7674-BA6 WIN 7 *SOLD*
T60 2007-WJJ 15'' IPS Flex-View WIN 7 *SOLD*
T400 6475-J92 WIN 7 *SOLD*
T43 2668-WDA 15'' IPS Flex-View WIN Vista SP2
X41 2525-AE5 WIN Vista SP2
T40 2373-42G WIN Vista SP2 *DEAD*
T520 4242-AK7 WIN 10 *ON SALE*
X220 4290-Y11 WIN 10 *SOLD*
X61 7674-BA6 WIN 7 *SOLD*
T60 2007-WJJ 15'' IPS Flex-View WIN 7 *SOLD*
T400 6475-J92 WIN 7 *SOLD*
-
- Senior ThinkPadder
- Posts: 2504
- Joined: Tue Sep 22, 2015 10:59 pm
- Location: Toronto, Canada
Re: ThinkPad T40 stopped working, Freezes
Well then it is for certain that you have one of the dreadful southbridge desoldering problems. You are looking at reflow (which will not return the motherboard to good as new state) or motherboard replacement. You are better off using your T42p motherboard in this case. Your old T40 motherboard can still be used as a charger if you wish
Btw as for parts swap your existing RAM, HDD and CPU (if Dothan core) will work in T42p just fine
Btw as for parts swap your existing RAM, HDD and CPU (if Dothan core) will work in T42p just fine
Dell Lat CP MMX-233 64mb 40gb W2k
600 PII-266 416mb 40gb WXP
T23 PIII 1.13ghz 1gb W7
Precision M4300 X9000 8gb 160gb WUXGA Ultrasharp fp W10
T530i 15.6" i7 16gb fp W10
UXGA:
A30p PIII 1.2 1gb W7 (IDTech)
T43p 2.26 2gb fp W10 (Sharp)
Lat C840 P4-2.5 2gb 60gb W7 (Ultrasharp)
600 PII-266 416mb 40gb WXP
T23 PIII 1.13ghz 1gb W7
Precision M4300 X9000 8gb 160gb WUXGA Ultrasharp fp W10
T530i 15.6" i7 16gb fp W10
UXGA:
A30p PIII 1.2 1gb W7 (IDTech)
T43p 2.26 2gb fp W10 (Sharp)
Lat C840 P4-2.5 2gb 60gb W7 (Ultrasharp)
Re: ThinkPad T40 stopped working, Freezes
Hi, after many days I am here.
I Think The T40 is Dead, nothing to do. Planning to buy the T42P MOBO with FireGl T2, I want to be sure it is compatible with the XGA screen of the TP T40, do you confirm?
Thanks all for your replies, waiting your answers.
Best Regards.
I Think The T40 is Dead, nothing to do. Planning to buy the T42P MOBO with FireGl T2, I want to be sure it is compatible with the XGA screen of the TP T40, do you confirm?
Thanks all for your replies, waiting your answers.
Best Regards.
W520 4284-A54 WIN 10 FHD upgrade
T43 2668-WDA 15'' IPS Flex-View WIN Vista SP2
X41 2525-AE5 WIN Vista SP2
T40 2373-42G WIN Vista SP2 *DEAD*
T520 4242-AK7 WIN 10 *ON SALE*
X220 4290-Y11 WIN 10 *SOLD*
X61 7674-BA6 WIN 7 *SOLD*
T60 2007-WJJ 15'' IPS Flex-View WIN 7 *SOLD*
T400 6475-J92 WIN 7 *SOLD*
T43 2668-WDA 15'' IPS Flex-View WIN Vista SP2
X41 2525-AE5 WIN Vista SP2
T40 2373-42G WIN Vista SP2 *DEAD*
T520 4242-AK7 WIN 10 *ON SALE*
X220 4290-Y11 WIN 10 *SOLD*
X61 7674-BA6 WIN 7 *SOLD*
T60 2007-WJJ 15'' IPS Flex-View WIN 7 *SOLD*
T400 6475-J92 WIN 7 *SOLD*
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Re: ThinkPad T40 stopped working, Freezes
The XGA screen will work with any T4x/R5x variant.
Lovely day for a Guinness! (The Real Black Stuff)
Lenovo: X240, X250, T440p, T480, M900 Tiny.
PS: the old Boardroom website is still available on the Wayback Machine.
Lenovo: X240, X250, T440p, T480, M900 Tiny.
PS: the old Boardroom website is still available on the Wayback Machine.
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