Cons: high temperature of the bottom of the case, poor battery life
"I bought my x100e back in july 2010. From that time on, the biggest problems are by far that the bottom of the case gets very, very hot to the extend that I cannot stand the laptop on my lap.
Temperature just by touching the case is very high. And when measured (by an infrared thermometer) I get the following readings:
Bottom (where the sink heat and memory slots are located at): Between 42°C and 52°C that means 107.6°F - 125.6°F
Side Vent: Over 52°C / 125.6°F Of course I knew the heat was going to be high, but I didn't expected that high.
In addition to that it is very usual that because of the high temperatures of the cores the computer shuts down from time to time (windows/bios self protection).
Besides that, battery life is not more than 3 hours (that is if you are lucky). I haven't seen the 4 hours mark. Of course if you don't do any activity at all it will last long, but that isn't what I bought my x100e for.
I won't recommend any one to buy the x100e, I would rather wait for the new X120e to see if Lenovv corrects the flaws of the x100e design (running extremely hot and poor battery life).
Even though this topic has been posted in several forums and reviews Lenovo hasn't done any action to solve it or even to address the issue. So as for support other than the usual updates and KB, I would gave them a low rating as well.
I gave low ratings in terms of mobility, design and value because of what was described above."
"Lenovo x100e is my first Lenovo laptop. And Not disappointing me as overall performance. I bough a x100e before 2 years ago. Is with AMD Neo single core processor. It's not so slow, but not is a great. Is a so-so. The display is mediocre too - with good resolution for 11.6" display, but with bad viewing angle. My x100e came with 1Gb of RAM - that's is not enough for multitasking work. The keyboard and track pad are great. I don't use external mouse. But I think that a big issue of x100e is battery. Very short time - about 1.5 hours in Maximum Performance. After a little upgrade - I add further of 2 GB of RAM and Samsung 830 SSD 128GB, the x100e is very, very responsible and fast next to the light :) I'm loving it!"
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Review 3 for ThinkPad X100e
Location:Los Gatos, CA
Owned Product:18-24 months
Operating System:Windows 7 Professional
Memory:4 GB or more
Major Heat Problem
Date:July 30, 2012
Pros: Weight, Build Quality, Keyboard/peripherals
Cons: Weight, Battery, reliability
"Other than the main focus of this review, the over-heating problem, I have been very pleased with the X100e. It meets my expectation of an ultraportable, a kind of super netbook, that does not compromise performance and features to achieve minimum size. The keyboard feels great and its effortless typability minimizes fatique and errors.
A major problem, however, it that the unit powers off due to excessive heat at random times varying from less than an hour to several hours. I ordered and received three identical units at the same time in November 2010. One of them has this problem severely. The second has the problem occasionally and the third has never exhibited the problem. The problem began occuring a month before the one-year warranty expired.
The latest BIOS and power management software is installed. the bottom has been removed and the inside carefully blown out to insure no dust is blocking the airflow. The problem occurs with the PC running on the network, but with the lid closed (display off) and no applications running. The problem worsens, of course, when the computer is used. With the computer powered on and left at the Welcome screen, no overheating or random powering off occurs.
Searching this problem on the web shows that this is a common problem with the X100e, but I haven't found any permanent solution. All the recommended solutions have not eliminated the problem. With the widespread instances of this issue, it deserves mention on the X100e support webpage, but Lenovo is quiet on the topic. This does not speak highly of their support.
This is a serious problem that renders the notebook essentially useless which is a shame since all other aspects of the product are excellent."