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Lenovo IdeaPad G770E battery

Par applebattery, 28/09/2012 à 5:52

The HP Pavilion dv7 offers everything, that is expected of a multimedia notebook. For those, who wish to use the laptop in a fixed position, the laptop has a RJ45 LAN interface, which supports 10/100 and 1000 Mbit/s. For those users who wish to be more flexible, the WLAN offers the freedom to surf on the web without any problems. Even those users, who wish to reduce the number of cables on their desktop, by using a wireless mouse, will be pleased with this model as it has Bluetooth on-board. Lenovo s230 battery


  Although it's not a business notebook, the HP Pavilion dv7 still has a few security mechanisms. For example, the fingerprint reader and the obligatory fingerprint reader. The fingerprint readers can be used instead of a password to secure the laptop. Lenovo s270 battery replacement

Maintenance
  A maintenance flap is installed and secured by a single screw. The user can easily access the majority of the hardware in the laptop after removing this flap. This makes upgrading or swapping out the RAM and hard disk a possibility. There is even a second slot for a secondary hard disk. It would be possible to install another hard disk in this slot, if a cable were provided, however, this was not the case in our test model. The cooler fan is not accessible. Lenovo G770 battery


  HP has chosen a chiclet keyboard with a numeric pad for the Pavilion dv7. Each key measures 15 x 15 millimeters. Lenovo G770A battery replacement The gap between two keys is 4 mm. This should ensure sufficient space for typing even for users with big fingers. The gap between the keys ensures accurate typing. The stroke distance is quite comfortable and neither too long nor too short. The impact is a little too soft. The typing noise is very quiet. Overall, the keyboard works very well. The bending of the keyboard, which we discussed earlier, is not an issue while typing. Lenovo G770E battery

HP has not provided any special keys for the Pavilion dv7. The only special button is the on/off button above the keyboard. All other functions have been relegated to the Fn keys. Other special features, like water-proof coating or backlight are not provided. Lenovo G770L battery

Touchpad
  The touchpad impressed us right from the first touch. HP has employed a matt black surface, which is slightly roughened. The touchpad measures 105 mm x 55 mm (115 mm diagonally) and is quite big. Multi-touch gestures, such as scrolling with two fingers, are recognized without a problem on this touchpad. In addition, HP has clearly fenced off the touchpad from the hand-rest regions with an additional border and a depression. Thus, the user will automatically know when s/he has left the touchpad. Lenovo IdeaPad G770 battery replacement

Both mouse keys work well. The pressure point is clear and when pressed, the buttons emit a clear and decent click. The stroke distance is quite short, but this should not be a problem as the pressure point is well defined. Lenovo IdeaPad G770A battery replacement

A good display is a must for a multimedia notebook. HP has picked a 17.3 panel for the Pavilion dv7. The resolution of the display is called HD+ (1600 x 900 pixels) as it lies between HD (1280 x 720) and Full HD (1920 x 1080). The LED backlight is standard nowadays. In addition, the LEDs ensure a homogenous illumination of the panel. Sadly, a Full HD display did not make the cut for our test model, but it would have looked nice on the dv7 (see the 7002eg). Lenovo IdeaPad G770E battery

On paper, the display is very promising, and our measurements are quite close to the values provided by HP. Lenovo IdeaPad G770L battery The display has an average brightness of 231.9 cd/m2 - a solid number. There are other laptops with higher values but one should not ignore the maximum brightness, which is quite close to the average at 239 cd/m2. A look at the brightness distribution reveals that the screen has nearly perfect illumination: 95%. This is almost a record. We are also happy that the brightness does not drop during battery use. Lenovo G575 battery replacement

Sadly, the contrast is a modest 176:1. This results in a relatively high black value of 1.35 cd/m2. We expected far higher values due to the great numbers we measured earlier on. Lenovo G575A battery

The color coverage is not exceptional. The sRGB color space is not completely covered by the panel. There are also big differences in the larger AdobeRGB space. A multimedia notebook does not need to have great coverage. This is only import to professional picture and video editors, and very few of those will want to use a multimedia notebook for their work. The accurate depiction of colors is not very important in the everyday use of a multimedia laptop. Lenovo G575E battery

Outdoors, the display is a problem. The reflective screen can be hard to read. In the shadows, the user will face annoying reflections and in the sunlight, the screen is not clear enough to read. Lenovo G575G battery

The viewing angles of the HP Pavilion dv7 are similar to those of other consumer and multimedia laptops. As long as the user looks at the display without bending it too much, the picture remains recognizable (even from the sides). However, as soon as the screen is tilted forward or backward, the clarity quickly drops. Lenovo G575L battery replacement

The HP Pavilion dv7 is a multimedia notebook and so it must be able to play movies. As many users want to run movies on their TV via HDMI at a Full HD resolution, the laptop must have sufficient performance reserves. This is not a challenge for the Pavilion dv7 thanks to the Intel Core i5 CPU and the Nvidia GPU. The notebook is also suited for office tasks and streaming videos off the web. The occasional gamer should be satisfied with this model, as long as the games are not run at the highest resolution or highest details. Lenovo G575M battery
 
The installed Intel Core i5-2450M is not the latest processor and belongs to the Intel Sandy Bridge series. Lenovo IdeaPad G575 battery replacement The next generation, Ivy Bridge, is already available. The i5-2450M is a middle-class processor with two cores. Thanks to Intel's Hyperthreading technology, the CPU can process up to 4 thread simultaneously. The maximum clock speed of the processor is 3.1 GHz. However, this is only possible when a single core is doing all the work. When multiple cores are running, the maximum clock speed drops. The Sandy Bridge CPUs have a TDP of 35 watts, which makes the i5-2450M an interesting choice for a 14 inch laptop. However, this is an odd CPU for a 17 inch model. Lenovo IdeaPad G575A battery

In Cinebench R10 Rend. Single, the HP Pavilion dv7 scores 4,895 points. This test only takes one core into consideration, thus the dv7 performs quite well. Other notebooks, with the same processor, like the Sony Vaio VPC-EJ3D1E/W (2450M, GeForce 410M), score at a similar level (4,883 points). The dv7 is slower than the new Ivy Bridge processors. This is shown by the MSI GE70-i547W7H (3210M, GT 630M), which scores 5,183 points. Lenovo IdeaPad G575E battery replacement

In Cinebench R10 Rend. Multi, all available cores are tested. The dv7 scores 10,320 points in this test. The test model once again lies at the same level as other laptops with the 2450M CPU. The Sony Vaio VPC-EJ3D1E/W (2450M, GeForce 410M) scores 10,518 points (slightly worse). In comparison, the Ivy Bridge CPUs have not changed much. The MSI GE70-i547W7H (3210M, GT 630M) may not be one of the fastest notebooks with Ivy Bridge, yet it can still score 10,924 points - more than the Pavilion dv7. Lenovo IdeaPad G575G battery replacement

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In the Cinebench R11.5 benchmark, our test model follows a similar trend. Compared to other models which use the Intel i5-2450M CPU, the Pavilion dv7 performs at a similar level. However, against processors of the newest Ivy Bridge family, our test model is at a disadvantage. Lenovo IdeaPad G575L battery

We did not notice any irregularities during "normal" use with Turbo Boost. The CPU clock speed remains constant at its specified value. This is not the case in a full load situation. HP has taken measures to prevent the CPU from overheating. Additional information about these measures can be found in the section "Temperature". Lenovo IdeaPad G575M battery

In PC Mark Vantage, the Pavilion dv7 wrings out 7,161 points. This places it next to the Packard Bell EasyNote LS11HR-167GE (2450M, HD 7670M) with 7,082 pionts and the Asus N76VM-V2G-T1078V (3610QM, GT 630M) with 8,584 points. Lenovo G470 battery replacement

In PC Mark 7, the test model scores 2,059 points. Once again, the test model places in front of the Packard Bell EasyNote LS11HR-167GE (2450M, HD 7670M) which has 1,991 points. The Asus N76VM-V2G-T1078V (3610QM, GT 630M) takes the lead with 2,469 points. Lenovo G470A battery

5.9Windows 7 Experience IndexProcessorCalculations per second7Memory (RAM)Memory operations per second7.9GraphicsDesktop performance for Windows Aero6.7Gaming graphics3D business and gaming graphics6.7Primary hard diskDisk data transfer rate5.9 Lenovo G470AH battery replacement

The hard disk of the Pavilion dv7 is a 2.5 inch model with a capacity of 650 GB. Not much for a multimedia notebook, but sufficient for most users. The hard disk operates at 5,600 rpm. It is clear from the specifications, that this Hitachi hard disk is not the fastest in the business. The average transfer speed is 70.6 MB/s, which is not exceptionally high and the access time is quite slow at 20.9 milliseconds, even for a hard disk running at 5,400 rpm. Lenovo G470G battery

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  The HP Pavilion dv7 has two GPUs at its disposal. The first one is the Intel HD Graphics 3000 chip. This is found integrated in the processor and does not increase the power consumption by much. It is well-suited for surfing on the Internet or watching videos. The Nvidia GeForce 310M is comparable to the HD 3000 is terms of performance. Lenovo IdeaPad G470 battery

Should more graphics performance be required, the system will automatically switch to the stronger graphics card, Nvidia GeForce GT 630M, thanks to Nvidia Optimus. This is a middle-class graphics card which can run most new games at low settings. However, at medium settings or higher resolutions the gameplay breaks down significantly. The laptop can only run older games at high settings. Lenovo IdeaPad G470A battery replacement

We used 3D Mark 06 to measure the graphics performance. The HP Pavilion dv7 scores 9,069 points. In comparison to other notebooks which use the GeForce GT 630M, the HP Pavilion dv7 scores quite well. The next notebook with the GT 630M is the Asus A95VM-YZ030V (3610QM, GT 630M), which scores 9,593 points. This Asus model is an 18 inch desktop replacement. The previously-mentioned Asus N76VM-V2G-T1078V (3610QM, GT 630M) manages 9,503 points. Lenovo IdeaPad G470AH battery

In 3D Mark 11, the dv7 can not score as well. The score of 1,249 points places the test model behind the Asus N76VM-V2G-T1078V (3610QM, GT 630M) which manages 1,288 points. Despite this, the graphics performance of the dv7 is decent. Lenovo IdeaPad G470G battery replacement

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