Kingston 4GB 204-Pin DDR3 SO-DIMM Unbuffered DDR3 1333 (PC3 10600) System Specific Memory for Lenovo Model KTL-TP3B/4G

Pros: So, far, seamless upgrade, no issues. 4Gb Kingston passed all tests. A good price for Lenovo T520 upgrade.

Cons: None.

Other Thoughts: NewEgg Eggsaver shipping carrier did not update the tracking info and the order arrived 1 business day later than expected. But, overall, end result was good.

Pros: Kingston system specific design and therefore recommended for the W510 I have. Note mine is a 4318-CTO and Newegg only lists 4319 and above, but the Kingston site recommended these SO-DIMMs.

Factory had 2 x 2GB PC3-8500S-777 running at 1066 Hz. replaced with 2 x 4GB of this RAM and Windows experience number for memory jumped from 5.9 to 7.1

Cons: None.

Other Thoughts: Searching around I found a Lenovo article that said order to populate slots was the lowest slot under the keyboard first. The factory had not installed that way, but I tried the lower slot under the keyboard. The memory was not found. I moved it to the upper slot under the keyboard and the second one to the left slot on the bottom. It works. I don't know what was going on here - bad documentation or bad slot, but this arrangement works.

I was a little afraid of removing the keyboard, but it was simple. You need a #1 Phillips head and apply a little pushing pressure on the keyboard after the screws are out.

Pros: This memory is completely compatible with a Lenovo Thinkpad T-520 laptop. It snaps right in and has given me zero issues over the past month. This module works fine being used to supplement the existing Lenovo 4GB of memory.

Cons: No Cons

Other Thoughts: Buy the Lenovo Thinkpad T-520 with 4GB of memory then use this module to bring it to 8GB for a fraction of the Lenovo upgrade price.

Pros: Zero since I cannot utilize the full clock speed and memory timings of the DDR3-PC1333 Module. It is locked at PC1066 in the Lenovo Z560 system, with ZERO options to change clock speeds and timings. It is simply "unsupported" by the bios.

Cons: The newegg ram finding utility has failed me and caused me to waste over 60 dollars on a higher-end ram that will not even work in my laptop. Yes I am very mad and I will be returning this ram and requesting a FULL refund. You guys need to make sure that the systems SUPPORT the ram fully first before making us spend an EXTRA 20 DOLLARS on a higher-speed ram.

Other Thoughts: Will no longer be using the newegg memory utility, due to its inaccuracy.

Manufacturer Response:

We are sorry for the experience you have had with your product. KTL-TP3B/4G is the recommended part by Kingston. Per Lenovo documentation this machine only supports up to 1066MHz. With the Core processor and the HM 55 chipset 1333MHz memory will clock down automatically to the supported speed of 1066MHz. If you have any other questions or require further assistance, feel free to contact us directly at 800 835-6575. We are available M-F, 6am-5pm, PT. I hope this information is helpful. Thank you for selecting Kingston as your upgrade partner.

External Link(s):

Kingston Memory Configurator|

Pros: Lenovo B570 - Kingston 4GB 204-Pin DDR3 SO-DIMM Unbuffered DDR3 1333 (PC3 10600) installed 2X4GB DIM's, upgrade increased Win7 User Experience Rating from 4.7 to 5.9, I recommend replacing existing (Factory) card as well, Kingston DIM is much cleaner. 2X4GB Factory 8GB RAM score was 4.7, not sure if only adding one Kingston DIM, did not Test.

Cons: N/A

Other Thoughts: N/A

Pros: Worked well in my ThinkPad T410s. Doubled its memory to 8GB. Installation was easy.

Cons: None.