How to identify IBM T40?

Ibmt40 is undoubtedly one of the most noteworthy second-hand laptops on the market! In the face of T40, how can we choose? This is difficult for most new users. Although many of the market's original T40 motherboard, but there are also a few of the installation, how to identify it? The most common T40 configuration advertisement on the market Selecting a machine is a technical task. We mainly determine the machine from the following aspects. Bios In the bios, we can see the serial number of the fuselage, And the sticker at the bottom of the machine should be the same as the serial number. In addition, pay attention to the BIOS version. Sometimes we may find traces of t41 in T40. Hey, just try again with a smile. The BIOS also provides information about the processor and memory, which may cause problems. After confirming that the machine is original, let's look at the Assembly fit of the machine. Assembly fit   Since these T40 have been used for many years, most of them may have been split. Some are required, while others are unnecessary. No matter how many machines, a machine with a high assembly fit should be able to handle the ups and downs better than those installed. Note the following: I. the right-side optical drive is not very clear. Let's look at the comparison between the two machines below. Poor, the gap on the left side of the screw is large + much dust-give up, or reduce JS money Good, small gaps + less dust, acceptable 2. Left USB port location The assembly gap above the USB port is large, which is not very good. 3. screen axis Some screen axes are not very fixed. Check whether the screen axis of some machines is fixed. There is no problem with the above. 4. PC Card Slot location Press the baffle plate with your finger to see the assembly in the machine. But here we have to look at the experience. People who will pick a machine can look at the assembly quality in the machine here. Body bottom sticker   The stickers at the bottom of the body have many secrets, but most people may not pay attention to this problem. 1. Origin: T40 actually has two origins: Mexico and China. However, most people do not know that Mexico also produces T40! Hey, the manufacturing in Mexico seems to be better. (When is China, my lovely motherland, a big precision manufacturing power ?) Mexican Made in China Machine Model sticker: The characters on the T40 sticker in Mexico are very special and cannot be easily seen as fake (JS does not have the corresponding font to print) Chinese T40 sticker characters are also very special, but many are fake, do not pay attention to distinguish between true and false (note V, s, 7 three characters) Removed COA In fact, COA was still available when I got home in Shenzhen, but it was removed before delivery. If there are still traces of rubber above, the T40 may supply goods in the near future, and it is worth buying. Pay attention to accessories   ThinkPad has many two-cell phones and many corresponding spare parts, among which there are also so-called OEM batteries. Note the following: Battery: The battery management software can see the performance of the battery, such as the time required for charging and the current battery time. It shows the time needed for battery charging. (Thank you for reminding me of Jia. hu) The OEM battery can only see the Number of battery cycles. OEM battery generally cannot see the date of first use Optical Drive: A special fru number is attached to the optical drive of T40. In general, the original optical drive is available. This number is not found in the re-built third-party spare parts. Note the font of characters! Keyboard: There are currently two types of keyboards. The difference is that there are no visible three screws near the finger bar. No screws Screw available There is little difference between the two. But for perfect users, these three screws are really unpleasant.