Fix for SMM “Incursion” attack for some Lenovo laptops

Some Lenovo machines contained incursion vulnerabilities that allow breaking into System Management Mode (SMM). While most recent ThinkPads are affected, there are also some affected consumer machines. Lenovo describes the vulnerabilities as follows: Some BIOS implementations permit unsafe System Management Mode (SMM) function calls to memory locations outside of System Management RAM (SMRAM). An attacker …

ThinkPad W541 vs ThinkPad W550s

If you are reading this, you are probably trying to choose between the ThinkPad w541 which is capable of using quad core Haswell processors or the ThinkPad W550s which uses low voltage dual core processors from Intel with a newer Maxwell graphics card, the Quadro K620M. The Lenovo ThinkPad W541 is a rebranded ThinkPad W540. …

ThinkPad Buyers Guide: Which Broadwell ThinkPad to buy?

Build Quality Most ThinkPads have a very solid build quality, even E-Series and L-Series are often robust enough in that department, at least compared to what you get as a consumer device in this price range. The real deal however are the T-series, the X-series and the W-Series models. They share common premium features: carbon fiber and glass fiber materials, making them extremely …

ThinkPad W540 – Stress Test Results

In 2013, Jin Li from ThinkScopes tested the ThinkPad W530. This year we decided to put the W540 to the test. Here are the results. We have used Prime95 and MSI Kombustor to put the highest load possible. This should tell us how hot the W540 can get in worst case scenario. Specifications Processor: Intel …