lenovo w541 lcd panel factory

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New Lenovo Thinkpad W541 T550 W550S 3K 15.6" FHD 2880x1620 LED LCD Touch Screen Digitizer Assembly WX16T028J0013127 The W541 is the 4th Generation Intel CPU"s while the W550S is the 5th Generation Intel"s. They use the same model touch screens

Backward roll! Lenovo"s 15-inch workstation was just slightly changed and is now called W541. Besides some small technical developments you also get changed input devices. Lenovo, however, missed the chance to improve other weaknesses. We had a closer look at the result.

Lenovo"s mobile workstation from the W-series got a completely new design in the last model year and there were some changes compared to the predecessor ThinkPad W530. It is no secret anymore that not every change was really user-friendly. Chassis quality, ClickPad, issues with the build quality and the limited upgradeability affected the good reputation of the desired series. Lenovo now tries to fix some of these issues with the new ThinkPad W541.

The ThinkPad W541 basically uses the same chassis, which means Lenovo did not improve the weaknesses of the ThinkPad W540 in the area of the palm rest, above the ExpressCard slot and at the lower display frame. Quite the contrary: We only have to rest our hands on the palm rest to provoke an audible contact between the outer shell and the internal components. It appears that stabilizing elements are just missing, so we do not get the stiffness that we expect from a ThinkPad.

The only obvious change is the touchpad. While the size of the indentation in the palm rest is similar, Lenovo cut off the upper part of the ClickPad and replaced it with three dedicated TrackPoint buttons. The touch sensitive surface is now smaller with around 100 x 56 millimeters.

We can see the reason for the comparatively low chassis stability when we look at the weight. It seems that the goal was a weight reduction: The Lenovo ThinkPad W541 weighs 2,600 grams (with 99-Wh battery), which is very light for a conventional mobile 15-inch workstation. Toshiba"s Tecra W50 weighs 2,710 grams and the very sturdy HP ZBook 15 G2 weighs at least 3 kilograms.

Lenovo faced a lot of criticism for the integration of the so called 5-Button ClickPad and the manufacturer now revises its decision for the ThinkPad W541 and many other ThinkPad models, at least to a certain extent. Users now once again get separate TrackPoint buttons, which will be good news for fans of the TrackPoint since the handling can now almost keep up with old models and you get a much better feedback from the buttons. It seems that the touchpad itself was reworked as well: The integrated touchpad buttons at the front of the ClickPad now also react in the peripheral areas and therefore provide a much better feedback compared to the previous generation. The touchpad also provides good gliding capabilities and executes inputs reliably.

Lenovo still offers the ThinkPad W541 with a Full HD TN display (1920x1080) or a 3K IPS display (2880x1620). Our review unit uses the same 3K IPS panel that we already evaluated in our review of the Lenovo ThinkPad W540. We also suspect that the Full HD panel will be similar to the previously tested model.

Lenovo still offers a large portfolio of processors you can choose from. The spec sheet lists seven different models, starting with the Intel Core i5-4210M all the way up to an Intel Core i7-4940MX. They can be combined with the Nvidia Quadro K1100M or the Nvidia Quadro K2100M as well as numerous storage solutions. Configurations with a quad-core processor support up to 32 GB memory. A detailed list of all the options is available in Lenovo’s PSREF sheet (Product Specifications Reference).

The performance of the Intel Core i7-4910MQ could not convince us in the review of the HP ZBook 15 G2. We were pretty disappointed with a performance advantage of just 2 up to 10% compared to the Intel Core i7-4710MQ quad-core processor. This comparatively low performance is generally no problem for the ThinkPad W541 and we can see much better results in all CPU benchmarks. Cinebench R10, for example, determines 5,576 points (single-core) or 22,085 points (multi-core) for our review system; Cinebench R11.5 64-bit determines 1.72 points (single-core) and 7.99 points (multi-core). The result is an advantage between 10 up to 20% over the Intel Core i7-4710MQ, so it is worth considering.

Lenovo equips the review unit with a Solid State Drive and a generous capacity of 512 GB (gross). Users can use around 411 GB after the initial setup. Bloatware is no problem for this ThinkPad and you can only find the usual Think Tools. The performance results of the Solid State Drive are good with up to 523 MB/s for read operations and 440 MB/s for write operations. The low access times and the silent operation are other advantages.

We already reviewed the Nvidia Quadro K2100M a couple of times in our tests of mobile workstations. The performance in our internal ranking is pretty much in the middle and according to the manufacturer it is the most powerful solution for a 15-inch notebook. Compared to the AMD FirePro M5100 it cannot really convince us, both in respect of the performance as well as the price. However, the alternative from AMD is still not available for the Lenovo ThinkPad W541, which means you will have to choose a Dell Precision M4800 or HP ZBook 15 G2 if you prefer this GPU.

The Lenovo ThinkPad is basically silent with light workloads and therefore hardly audible at all, the only thing you can hear from time to time is a restrained electronic humming. Medium load results in a noise of 37.2 dB(A) up to 40.5 dB(A) from the fan, which is increased to a maximum value of 42 dB(A) under maximum load. High-pitched sounds or a pulsating fan were no problem during our review.

The temperature development of the Lenovo ThinkPad W541 shows that the cooling concept is already working at its limit in this configuration with an Intel Core i7-4910MQ (TDP of 47 Watts). We were able to measure up to 57.5 °C at the bottom around the fan exhaust after one hour of sustained maximum load. This is much more than we measured last year for the two ThinkPad W540 laptops with 44 °C and 48 °C, respectively. This raises the question of how the Intel Core i7-4940MX behaves in combination with the cooling solution, since this processor does have a Thermal Design Power that is even 10 Watts higher (57 Watts).

As usual, Lenovo does a good job with the power consumption. The minimum consumption of 11.3 Watts is very low, and the value is even reduced to 7.9 Watts when you turn off the display. We were able to measure a peak value of 121.9 Watts for a very short time, which was reduced to 74.5 Watts after around 5 minutes due to the performance throttling. Similar to the fluctuations of the CPU clock, the power consumption fluctuates between 121.9 Watts and 74.5 Watts under sustained load as well. The power adaptor is specified with a nominal output of 170 Watts, which means it has sufficient headroom.

Lenovo announced a strong candidate for the highly competitive workstation segment with the W-series. A very good keyboard, a convenient display, the solid performance with low noise emissions and the convincing price-performance ratio are actually very interesting. The low weight, the large battery and the resulting long runtimes convince on the road. Another positive effect: We cannot find any build quality issues in the keyboard area anymore, and the return of the TrackPoint buttons shows that Lenovo listens to the users.

A nice unique feature is the integrated X-Rite colorimeter. It enables a simple and pretty good calibration of the panel without additional hardware. Besides the better color accuracy it also improves the mobility and the motivation to calibrate the display regularly.

The heavily limited performance on battery power does at least have a positive effect on the battery runtimes and shows Lenovo"s focus on good mobility. Overall, the Lenovo ThinkPad W541 leaves mixed impressions. If you can live with the mentioned drawbacks or partly compensate for them with an alternative configuration, then you get some appreciated unique features for a fair price.

The ThinkPad W-series laptops from Lenovo are described by the manufacturer as being "mobile workstations",Intel processors with an integrated GPU as well as an Nvidia Quadro discrete GPU, utilizing Nvidia Optimus to switch between the two GPUs as required. Notable exceptions are the W500, which has ATI FireGL integrated workstation-class graphics, and the W550s, which is an Ultrabook-specification laptop with only a dual-core processor. The W-series laptops offer ISV certifications from various vendors such as Adobe Systems and Autodesk for CAD and 3D modeling software.

The W-series laptops were introduced by Lenovo as workstation-class laptops with their own letter designation, a descendant of prior ThinkPad T series models suffixed with "p".

The laptop featured up to a 2.53GHz Intel Core 2 Extreme QX9300 CPU, up to 8GB of DDR3 RAM (two slots), either an (MXM-mounted) NVIDIA Quadro FX 2700M or FX 3700M with up to 1GB video RAM, and a 17-inch (43 cm) TN LCD display with a resolution of 1440 × 900 or 1920 × 1200.

The Lenovo W541 is a ThinkPad W540 featuring the new-style keyboard but with a re-introduction of the classic ThinkPad touchpad design. The prior ThinkPad touchpad design featured in the W540 and other 4th-gen ThinkPads was abandoned.

Rather than being a successor of any previous W-series model, the Lenovo W550s is a thinner Ultrabook variant of the W series; Likewise a latest P5xs series ThinkPads, the W550s was based in a T-series chassis.hyper-threaded Intel Broadwell Processors vs. the true quad-core processors of other models and has only two RAM slots.

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