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Lenovo Thinkpad E420s - Inexplicable Behaviour

post #1 of 2
Thread Starter 
Hello OCN,

I bought my Thinkpad E420s in June, and have been pretty pleased with it.
However in August I took the laptop on holiday to the US with me. After about 4 days of being there, the laptop started to shut down with no warning. I had been using it as I normally would have at home, using it on battery for short periods and mostly plugged into the mains.

At first, the laptop only shutdown if I moved it around. I would have it sitting on a table, and would very gently rotate it round, and it would instantly shut off. Other times I would be able to get away with moving it. Then it started to worsen, and it shut off so regularly that using the laptop was almost impossible. I got it to run it's hardware diagnostic tool, and it sat there on the table and ran checks for 10 minutes or so. After it finished, it claimed all hardware was functioning correctly. I then closed the window, and drew a selection box on the desktop, with my mouse that was plugged in (ie I didn't even touch the laptop at all) and the laptop shut off instantly. It would do this plugged in or on battery.

Of course I called Lenovo support in the US, and after explaining the behaviour, I was told to get the laptop examined as soon as I returned home. The advisor I spoke to explicitly told me to wait until I returned to the UK before having any work carried out.

Towards the end of my holiday, I had managed to find a spot where the laptop seemed happy, and wouldn't shut off as much, so I got some use out of it. It would still throw it's tantrums though.
Upon returning to the UK, the laptop has not shut itself off since I have been back. I also noticed that I could hear something rattling inside the laptop as I picked it up, however it then stopped after I had been swivelling the laptop around to work out what/where it was. I have heard it moving around more than once. Could this be what was causing the problem?

Anyway, I just called Lenovo UK, and they said if there is no problem they can do nothing. I was also told that the problem was that the pin adapter I was using in the states was causing the issue. I was still using the Lenovo power transformer and plug, I just had a simple pin converter. I am completely baffled as to how this pin converter was causing my laptop to shutdown when it was not even connected to it. Can anyone verify this for me? What should I do? Lenovo support here have been very clear that the 3rd party converter is at fault. Should I try and have someone take a look inside? I'm really at a loss.. frown.gif

tl;dr My new Thinkpad was fine in UK, kept shutting off in the US, seems fine back in the UK, what gives?!

-dizzy
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post #2 of 2
Quote:
Originally Posted by disruptor;15199224 
I could hear something rattling inside the laptop as I picked it up, however it then stopped after I had been swivelling the laptop around to work out what/where it was. I have heard it moving around more than once. Could this be what was causing the problem?

Might be, If something is hitting the motherboard and shorting out that could make it go off. Your just lucky it keeps turning back on, I would open it and check everything.
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ASUS-PC
(10 items)
 
1090T-Server
(13 items)
 
MSI FX420-050US
(13 items)
 
CPUMotherboardGraphicsRAM
i5-2500k ASUS P8Z68-V XFX Black Edition - AMD Radeon HD 6850 Corsair 16GB 
Hard DriveOptical DriveCoolingOS
x2 1TB Drive - x2 500GB Drive - x1 OCZ 60GB SSD SATA DVD Drive Hyper 212 Plus Windows 7 64bit 
PowerCase
CORSAIR CMPSU-750TX 750W Antec Three Hundred 
CPUMotherboardGraphicsRAM
1090T @ 3.6GHz - 1.35v, CPU-NB @ 2400MHz - 1.2v Gigabyte GA-990XA-UD3 Geforce 8300GS 256MB Corsair 16GB @ 1333MHz 9-9-9-24 
Hard DriveOptical DriveOSPower
500GB WD black, 160GB WD blue Sata DVD burner Windows 7 64bit 630W 
CPUMotherboardGraphicsRAM
i5-2410M Intel HM65 6470M 1GB GDDR3 6GB DDR3 
Hard DriveOptical DriveOSMonitor
750GB | 7200RPM DVD Super Multi Windows 7 Home Premium 64-bit 14" 1366x768 
Power
90W 
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