Frequent Shutdowns

[geronimo2015]

Dear techies,

Of late, I'm having serious shutdown issues on my Lenovo T400. Actually, I had been plagued by bsods till only a few months ago but thankfully, it became less frequent after executing good ol' chkdsk/f/r and sfc/scannow.

However, since about a fortnight, I'm having to face regular shutdowns again because my battery has breathed its last and I can't work unless I keep it on continuous charge. But then it shuts down shortly. However, this seldom happens when it's not plugged in.

Any help shall be greatly appreciated; especially, if it'd spare the cost of buying a new battery. It'll kinda burn a very deep hole in my pocket.

The specs are:

Lenovo T400

Model: 2767W3A

OS: Windows 7 Professional 32-bit 6.1.7601 SP1

Processor: x64 Family 6 Stepping

Thanks.

[thinkpadcollection]

T400 can take 8GB total ddr3-1066 or DDR3-1333 which is more easier to acquire. Two sticks 2x 4GB, 2Rx8 organization, 1.5V, easy to find on ebay as matched sets and between 50 to 65, I use hynix, elpida, micron ditto crucial and samsung OEM memory sticks. The original memory sticks might be the problem.

Ebay is again your source for T400 battery, 30 to 40.

Cheers, thinkpadcollection

[axur-delmeria]

Have you ever cleaned the heatsink and applied new thermal paste?

[Temetka]

^ That.

A good system cleaning at least once a year. I do my systems every 6 months.

[n2ri]

or install TPFC app to prevent common overheating

[geronimo2015]

T400 can take 8GB total ddr3-1066 or DDR3-1333 which ddr3-1066 or DDR3-1333s more easier to acquire. Two sticks 2x 4GB, 2Rx8 organization, 1.5V, easy to find on ebay as matched sets and between 50 to 65, I use hynix, elpida, micron ditto crucial and samsung OEM memory sticks. The original memory sticks might be the problem.

Ebay is again your source for T400 battery, 30 to 40.

Cheers, thinkpadcollection

Thanks for the info. Being a non-techie, I just want to confirm whether the names "ddr3-1066" and "DDR3-1333" refer to batteries.

[axur-delmeria]

DDR3-1066 and DDR3-1333 refer to RAM, not batteries.

[jaspen-meyer]

Check the connection between the AC power adapter and the computer.
Also check the connection between the wall outlet and the power adapter.

If the parts do not fit together tight, when you move the laptop you break the connection between the wall outlet and the laptop.

For the BSOD can be caused by broken ram.
Test your ram with Memtest86 to see if it is broken.
Only some very small sections of your ram stick will be broken, and you can still use the ram stick in Linux by listing the bad sections of ram in a boot line parameter (not sure about in Windows 7).

In Linux, you can tell the OS, 'the following parts of ram are broken. do not use them.'
Maybe you can do the same in Windows 7.

The other simple way to (maybe) fix the broken ram is to remove it.
Just take out one of your ram sticks and see if you still get the BSOD.
Then put it back in and try taking out the other stick.

[Temetka]

or install TPFC app to prevent common overheating

As nice as TPF is, it is no substitute for proper system maintenance.

[n2ri]

or install TPFC app to prevent common overheating

As nice as TPF is, it is no substitute for proper system maintenance.

true, however some models had poor design in cooling like when they added fine screen to air holes on bottom of W500 while using a hotter running CPU in same housing as T61 series with no such screens and cooler CPU. screens restrict air flow greatly even when clean. also heat paste gets dry and looses ability to transfer heat to sensors on some series. blowing dust out is easy but not always the cure. all these things where tested on my W500 and the TPFC was what fixed the overheat shutdowns. also the W500 style displays have issues with control board overheating shutting display off or rebooting due to occasional fails. (sometimes this happens while moving mouse/cursor off right side of a window screen and desktop trys to apear). just some things to look for. if we know what glitches these units have had we can enjoy them many more years as they are the toughest laptops ever made.