Question 1

Is this compatible with an ASUS K52F laptop?

Accepted Answer

Its server memory, it won't fit in a loptop. Also, its server memory so it wont work in a laptop(ecc unbuffered). Even if it did fit and work it still wouldn't be the right speed, the laptop takes 1066 and this is 1600.

Question 2

Will this RAM work in a Lenovo TS140?

Accepted Answer

I would call Lenovo and ask them I built my own server so had the parameters. If it does not work return it.

Question 3

What does w/TS mean?

Accepted Answer

'With Thermal Sensor' - meaning there is a temperature sensor integrated.

Details: This came up during a phone call to Kingston Technical. Speaking with a very knowledgeable technician named Kevin. This is further supported by the data sheet from Kingston dot com.
In this case, it is listed as a Class B thermal sensor.

Question 4

What does SR x4 mean?

Accepted Answer

Short Answer: Single Rank x4

Details: 
This came up during a phone call to Kingston Technical. Speaking with a very knowledgeable technician named Kevin. This is further supported by the data sheet from Kingston dot com.
He explains...
"The ranking has to do with the physical architecture. Think of it as a highway. Single Rank would mean single lane. Dual rank is a dual-lane highway. Quad rank is a 4-lane highway. Some motherboard manufacturers have a hard limit on this that you do not want to exceed. For example, Intel server boards take x8, but others, like some Supermicro boards take x4."
He further explained that you cannot exceed the motherboard thresholds, which is what most often happens when RAM is incompatible with a motherboard. "You can't put 4 quad-rank memory modules in a motherboard that is expecting 4 dual-rank modules. It won't work."
In essence, his advice here is to consult memory compatibility charts with the manufacturers, or using Kingston's online memory matching tool.  While I feel like it should go without saying, I suppose I should say it for any who 'don't know better.'

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