Acer Aspire 7540G (LX.PPP02.093) in the test

Acer Aspire 7540G (LX.PPP02.093) in the test

With the Aspire 7540G, Acer has a notebook in the offering, which is AMD’s Turion Ultra II and an ATI Mobility Radeon driven 5650th Because of the 17.3-inch displays, it is suitable as a desktop replacement. ZDNet has been testing the device.

Acer Aspire 7540G has with a 17.3-inch notebook with AMD CPU and DirectX 11 graphics on offer. ZDNet has tested, which makes the device.

Outwardly similar to the 7540G many other Acer notebooks and netbooks hp pavilion dv2000 battery. On the high gloss lid leaves touching visible fingerprints. Frequent polishing is required. The area around the keyboard is made of gray plastic, which is provided with small depressions.

The 7540G is uniquely positioned as a desktop replacement: The 17.3-inch widescreen, 3.9 kg weight and dimensions of 44 times 29.5 times 4.4 inch mobile, it can hardly use common sense – at home all the more better.

Acer has accommodated thanks to the large chassis with a keyboard number pad. The layout to the small arrow keys and the only one to find fault line are high enter key. As with other notebook manufacturer of the keys have a little distance, and seem to float. The comfort when typing due to conviction of a neatly defined attack and a rich sound.

The nice large touch pad, which consists of the same material as the palm rest controlled, multi-touch: Two finger scrolling allow the spreading of the fingers zooming.

Interfaces and display

On the right side of the case a USB port, Gigabit Ethernet, and the DVD burner can be found, left three more USB ports (running as a USB / eSATA combination). External analog monitors can be controlled digitally by using VGA or HDMI and DisplayPort.

The 17.3-inch widescreen 16:9 format solves 1600 by 900 pixels. It shows a sharp image with vibrant colors. Unfortunately the display is provided with a glossy coating. This is known to go hand in hand distracting reflections, which are already at maximum backlight clearly visible. Dims the backlight is, for example, to save electricity, content can be read only with difficulty. When you look from the side of the screen shows a pleasing color stability, from the top but you have to make compromises. This can vgp-bps8 battery be explained by the change of slope around but simple.

In the upper display frame lies a webcam, the video conferencing in HD resolution (720p) allowed. It also offers less than ideal lighting conditions, even a decent quality.

Equipment and power

The CPU comes with the Turion Ultra II, the latest generation CPU AMD out of the house used. The chip with the model number is M620 clocked at 2.5GHz and features two processor cores. Regarding performance, he must go by a comparable Intel Core i5. The enormous advantage in the AES encryption is due to its hardware acceleration.

Besides the CPU, the notebook 4GB DDR3 RAM (1066 MHz), a 640-gigabyte hard drive, gigabit Ethernet and 802.11b/g/n wireless for on board. The drive operates at 5400 revolutions per minute, which is only average. Especially for a desktop replacement hard disk with 7200 revolutions per minute would be desirable.

For the graphic provides an ATI Mobility Radeon HD 5650 with 1 GB of private memory. The 5650 is one of the first notebook GPUs with DirectX 11 support. In terms of performance just short of the Nvidia Geforce 250M GTS, which comes in 8940G used.

In 3D Mark Vantage (DirectX 10), which also includes the CPU lenovo ideapad y450 battery power that brings the Acer only 3097 points. That’s about 500 points less than the 8942G, the same GPU, but uses a Core i5. Resident Evil (DirectX 10) is performed with 30 to 50 frames per second if you choose the native resolution 1600 by 900 pixels. The DirectX 11 game "Colin McRae: DiRT 2" brings it on the other hand, only 16-27 pictures.

The ATI GPU renders not only 3D games, but can also be harnessed for other tasks. For example, for the video conversion with Cyberlink MediaShow Expresso: The conversion of a two-minute clip AVI to MPEG-4 format with GPU support lasts 61 seconds. The processor GPU without the need for 142 seconds. One can easily imagine what tremendous advantage of the technique of converting longer videos offers.

However, the GPU acceleration is not enabled by house, as the pre-installed drivers do not support the function of December. Only one supplied by AMD preview version of the Catalyst 10.3 driver it turns freely.

Software

The Aspire 7540G is running Windows Home Premium in seven of the 64-bit version. The 4 GB of memory are thus fully utilized. Notebook manufacturers like Acer, it can not take to equip the OS with all kinds of gifts, mostly of dubious quality: The desktop is adorned with several icons that lead an example for Acer accessories store to Ebay or on Acer registration. Even the Norton Online Backup has experienced a prominent placement.

Are pre-installed 60-day trials of Microsoft Office 2007 and McAfee Internet Security Suite. The latter calls for a very short time in penetrating to the registry. The Acer Updater helps with their own warnings that drivers and software stay current.

The criticism of the software features of the Aspire can now be transferred to most consumer notebooks. Given the price pressure, it is understandable that the OEMs throw in a tool such as McAfee Internet Security Suite like to earn a few euros. For the end user makes the matter but not better.

In the not too demanding tasks of 7540G only a slight noise is heard. Under full load, but it is clearly audible.

The removable 4800 mAh battery lasts while surfing the net via WLAN with dimmed backlight around two and a half hours. In idle mode at maximum display backlight and WiFi turned on the laptop requires 23 watts under full load, 50 watts.

Conclusion

The Acer Aspire 7540G (LX.PPP02.093 VGP-BPS9/B) is a solid desktop replacement with good performance, affords no real weaknesses. The ATI GPU offers a true high performance and DirectX 11 support, many games can not still be running in native display resolution.

When and at what price the device hits the market in Germany is not yet known. The information will be added as soon as possible.

Via: Acer Aspire 7540G (LX.PPP02.093) in the test

Panasonic and Sony Blu-ray increase capacity to 67 GB

Panasonic and Sony Blu-ray increase capacity to 67 GB

A layer increases to 33.4 GB of data in future. This represents an increase
of 33 percent. The two companies achieve greater data density by a new method of
signal processing.

Panasonic and Sony have TechOne According to a report by a process developed
to increase the maximum storage capacity of Blu-ray disc of 50 GB to 66.8 GB.
Each layer takes the new disc to 33.4 GByte data, representing an increase of 33
percent.

The higher capacity is achieved through a new technology for signal
processing. The so-called Maximum Likelihood Sequence Estimation (MLSE-i)
improves the quality of read and write operations.

The solution is compatible with the existing laser optics Blu-ray player.
i-MLSE but needs a more powerful hardware, as the new process involves complex
calculations, which current players are overwhelmed. A possible candidate for
Blu-ray discs with more capacity is Sony’s PlayStation 3, the Cell processor
provides sufficient performance for i-MLSE.

Sony plans according TechOne to propose to the Blu-ray Disc Association, the
introduction of i-MLSE. Since the Japanese company is one of the most important
members of the guild must implement the technology as standard are considered
likely.

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Via: Panasonic and Sony Blu-ray increase capacity to
67 GB

AOC introduces four monitors with LED backlight

AOC introduces four monitors with LED backlight

The models E936Swa, E2236Swa, E2236Vwa E2436Vwa and provide a reaction time of 5 milliseconds dell vostro 2510 battery. The dynamic contrast ratio up to 2,000,000:1 be according to the manufacturer. The market will start in January.

AOC has announced four 16:9 monitors with LED backlight. The models E936Swa, E2236Swa, E2236Vwa E2436Vwa create according to the manufacturer and dynamic contrast ratios of up to 2,000,000:1 and reaction rates of 5 milliseconds. The launch will take place in January 2010. Prices are not yet known.

The 18.5-inch model E936Swa delivers a maximum resolution of 1366 x 768 pixels. It offers a brightness of 250 candelas per square meter and a maximum horizontal and vertical viewing angle of 160 degrees. The power consumption of the monitor should be in operation at 20 watts in standby mode in less than 0.4 watts. It comes with built-in stereo speakers and can connect via a VGA port on a PC dell xps m1330 battery.

The two screens E2236Swa E2236Vwa and are equipped with 21.5-inch TN panels, which offer a Full HD resolution of 1920 by 1080 pixels. Your maximum viewing angle AOC is horizontally and vertically to 160 degrees. The power consumption of the two monitors should be less than 30 watts in operation and 0.4 watts in standby. The brightness is the producer of 250 candelas per square meter. The connection to a PC with a VGA port E2236Swa, the model E2236Vwa also has a DVI interface.

The 23.6-inch monitor E2436Vwa a TN panel is installed, which resolves with 1920 by 1080 pixels and provides a brightness of 250 candelas per square meter. The maximum viewing angle is 160 degrees according to the company. The device is equipped with two 1.5-watt stereo speakers. In addition, it has a VGA and a DVI port.

The 21.5-inch monitor E2236Swa has a resolution of 1920 by 1080 pixels (picture).

Via: AOC introduces four monitors with LED backlight

Toshiba delivers 10-inch netbook with eleven hours of battery life

This article via: Toshiba delivers 10-inch netbook with eleven hours of battery life

Toshiba delivers 10-inch netbook with eleven hours of battery life

The mini NB305-105 works with Intel's Atom N450 CPU, 1GB of DDR2 RAM and a 250 GB hard drive. Being with 10.1 inch display with 1024 x 600 resolves pixel. The price is 499 euros.

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Toshiba has launched the first model of his at the CES in Las Vegas featured Netbook NB305 mini-series on the market. The 10.1-inch NB305-105 unit with integrated 6-cell battery to get up to eleven hours without mains. It is now available for 449 euros.

The NB305 is based on Intel's Pine-Trail platform, which includes not only the chipset NM10 Express Atom N450 CPU with integrated graphics core (GMA 3150) and memory controller. The processor is clocked at 1.66 GHz. He is assisted by 1 GB of DDR2 RAM and a 250 GB hard disk to the side. The latter has a 3D motion sensor, the read-write head in strong shocks quickly parked and thus prevent damage.

The 10.1-inch LED-backlit display of the NB305 Netbook dissolves with the typical 1024 x 600 pixels. Other features include Fast Ethernet, WLAN 802.11b/g/n (), Bluetooth 2.1 with EDR, a Multitouchpad, a Chiclets keyboard, a 2-in-1 card reader and a VGA webcam. Using Windows 7 starters used.

Of interfaces three USB ports, microphone input, headphone jack, and VGA output are available. The latter supported because of restrictions built into the Atom CPU unit only graphic resolutions up to 1400 times 1050, so that can be external full HD monitors controlling not reasonable.

The 1.33-pound NB305-105 has a white body with 3D texture and matte finish. The full-size keyboard is decorated in silver. The warranty period of one year includes a free pick up service and can be extended for another year.

From now provides a first model of the Toshiba also made at CES announced Arrandale Notebook series Qosmio F60. The 15-inch set with F60-10X-i3-330M Core CPU (2.13 GHz), 4GB DDR3 RAM, 320 GB hard drive and Nvidia GeForce graphics type GT 330M will cost 899 euros.

In addition, there are new configurations of the Satellite series T110, L, A500, P500 and U500, and the Qosmio X500-series. Prices range from 499 to 1649 euros.

The mini NB305-105 is available now for 499 euros (Picture: Toshiba).

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MSI brings gaming notebook with Core-i-CPU and DirectX 11 graphics

This article via: MSI brings gaming notebook with Core-i-CPU and DirectX 11 graphics

MSI brings gaming notebook with Core-i-CPU and DirectX 11 graphics

The models GX740 and GX640 come with up to 8GB of DDR3 RAM and a maximum of 640 GB hard drive. Your 17 - respectively 15,4-inch display offers a resolution of 1680 16:10 times 1050 pixels. Prices start at Euro 1049.

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MSI supplies from March's first time at the CES in Las Vegas featured gaming notebooks GX740 and GX640. The 17 - and 15.6-inch units are equipped with Intel's Core-i-processors and a dedicated DirectX-11-GPU provided by AMD. The entry prices are in Euro 1099, respectively in 1049, including a two-year warranty with pick up service.

MSI installed in the Newcomers either a quad-core CPU type Core i7 720QM (1.6 GHz) or a Zweikernchip the new core i5 Series 430M (2.26 GHz). As memory 4 or 8 GB of DDR3 RAM are available. The hard drive capacity is up to 640 GByte.

Despite their different sizes solve the 16:10 displays of the gaming notebooks, both with 1680 times 1050 pixels. While the GX740 AMD's high-end graphics ATI Mobility Radeon HD 5870 with 1GB of GDDR5 memory is used, the GX640 uses the somewhat weaker version Radeon HD 5850 with same memory size. Both solutions should also provide sufficient power for the latest 3D titles.

Other features include Gigabit Ethernet, WLAN 802.11b/g/n (), Bluetooth 2.0 with EDR, a 2-megapixel Webcam, 7.1-channel audio (GX740: four speakers plus subwoofer), a 4-in-1 card reader, a dual-layer DVD burner or Blu-ray drive and a 9-cell battery with 7800 mAh. For the connection of peripherals, two USB ports, a combined USB / eSATA port, Firewire, and a VGA and an HDMI output so far. The operating system is the 64-bit versions of Windows 7 Home Premium.

In battery mode, users with an illuminated touch-sensitive panel of five select user profiles in order to reduce the power consumption of the notebook. In less depending on the profile required components are switched off or heruntergetaktet.

With a weight of about 2.7 kilograms and measuring 36 times 26 times 3.6 centimeters, the MSI GX640 is according to one of the lightest and slimmest gaming notebooks on the market. The GX740 measures 39.5 times 27.8 times 4 inches and weighs 3.2 kilograms.

MSI's new gaming notebooks are available from March at prices from 1049 euros (Image: MSI).

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SGI Introduces Blade System Origin 400 for SMEs

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SGI Introduces Blade System Origin 400 for SMEs

The range was extended downwards. In a 6U chassis fit six blades, each with two sockets. The processor is Intel's Xeon yesterday imagined Sechskern used.

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SGI has unveiled an integrated blade server system for SMEs. Origin 400 is to adapt the capabilities of the recent Origin products for large companies to the needs of smaller firms and branch offices.

SGI Origin 400 integrates 72 cores to six units (picture: SGI).

The Origin 400 can be used as Web servers, application servers, e-mail server and back-end database server. It supports the virtualization technologies, VMWare ESX, Citrix XenServer and Microsoft Hyper-V. Six blades, each with two sockets and 14 2.5-inch drives fit into a six-level units (6U) high chassis. The processor is Intel's Xeon chip yesterday imagined Sechskern 5600 are used. This results in 72 cores per Origin 400 system.

Intel positions the Xeon 5600 as a platform for customers who have moved server upgrades. It enables a high consolidation rate and brings with two safety features that will benefit the virtualization: Advanced Encryption Standard New Instructions (AES-NI) and Trusted Execution Technology (TXT).

The Origin 400 is available now. A price will not make SGI.

Apart from SGI have all the major server manufacturers yesterday extended its product range to include systems with Sechskern Xeon chips, including Dell with two blade servers (M710, M610), four rack servers, (R710, R610, R510, R410) and three tower servers (T710 , T610, T410), IBM with its x-series servers and HP, which even a gaming PC equipped with an Intel processor Sechskern: the HPE-180t. The server CPU alone costs $ 810 extra here, however VGP-BPL13 battery , VGP-AC19V13 , VGP-AC19V19 , dell 1691P battery , dell 3R305 battery , etc.

When the S1, S3 trigger conduction, S2, S4 shutdown, the DC power supply circuit for the: + → S1 → arc → S3, which was now half-wave in the electric arc current, DC and the wire is positive polarity, the arc stability , stove seam and deep penetration, through effective control of current, easy wire melting and metal transfer. When the S2, S4 turns on, S1, S3 shutdown, the power circuit for the - → S2 → arc S4, which were negative half-wave in the electric arc current, DC and the wire for the negative nature, the arc climbing along the wire, arc not stable droplet difficult transition, weld pool shallow arc along the wire with the climb to promote and reduce the arc welding wire melting on the pool's heating, the formation of shallow penetration characteristics. Thus, as long as the control group 2 alternately turn electronic components, switching the direction of arc current, and power elements by controlling the two groups on-time duration and the relative power ratio, frequency and can be obtained when the ratio of positive and negative half-wave power Adjustable AC and DC. In the welding process, welding parts according to the size of the request, select the appropriate welding current frequency and time of positive and negative half-wave power ratio, can form a suitable weld quality control, especially when welding sheet metal forming shallow penetration to ensure that melting does not appear pool formation failure phenomenon, to meet the requirements of welding quality.

DC arc welding inverter technology

Power electronic device performance improvement and development of inverter technology for the rapid development of the most basic material base, superior performance, a new emergence of power electronic devices will certainly lead to great development of inverter technology will inevitably lead to advanced AC-DC inverter welding power source in the application and development.

Successful trial since 1962 in China since the thyristor to ordinary Rectifying Tube and as the main variable injection technology, inverter technology has greatly developed, the device has greatly improved the quality of the derived type thyristor , the staff quick, two-way, turn-off and the inverter guide device has a faster development, product output increased significantly. Over the past 10 years, is designed with technology, testing, reliability and other aspects of the study, the device greatly improved the capacity of fixed, static and dynamic features to improve the afternoon. China has designed and developed a 1000A, 1200V, 30μs fast thyristor; 100A, 600V or more power switching transistor; 40,60 A, 1000V Fast Diodes above. In addition, 50,100 A high-power field effect transistors, IGBT in the early 90s began trial production. Meanwhile, frequency control, power supply, not between the sharp, electroplating power supply, resistance welding, arc welding power source, electron beam power, high frequency heating and heat treatment, electrochemical inverter has been widely used technologies and products, and have dozens of series and hundreds of specifications of such products. Including a unit capacity of 250,350 kVA thyristor converter; unit capacity of more than uninterrupted power supply units 1000kVA; 250kVA of IGBT inverter type resistance welding; 33kVA of IGBT inverter arc welding; 15,30 kVA of field-effect transistor-type arc welding inverter.

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Apple iPad postpones delivery of accessories for May

This article via: Apple iPad postpones delivery of accessories for May

Apple iPad postpones delivery of accessories for May

This affects the keyboard dock and the USB Power Adpater. Originally, they should be available mid to late April. The protective case iPad appear about two weeks later than planned.

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As Apple Insider reports, Apple shifts the publication of accessory products for the iPad. Way, the Keyboard Dock, a combination of a docking station for charging the tablets and a keyboard with special keys in standard size, only delivered in May. Originally it should be available in mid-April.

Even the 10-watt USB power adapter is now only in May, rather than appear as previously scheduled in late April. In addition, delaying the introduction of the iPad Case, a protective cover with reinforced side panels that can be used as a stand, to mid-April. It should iPad before the official sales launch in the U.S. on 3 Be available in April.

The planned delivery dates for the iPad iPad dock and the dock connector-to-VGA adapter, Apple has not changed. Both come on 3 April in the trade. Matching headphones with integrated remote control and microphone can now be ordered for delivery within 24 hours.

In the U.S., Apple has for the 12th March pre-orders for the iPad contrary. Estimated to have been received in the first six hours after the tickets go on sale starting approximately 91,000 orders on the first day and about 120,000 jobs for the Tablet PC. In this country to the end of April iPad come on the market.

Some accessories for the iPad, including the keyboard dock and the USB Power Adapter, appear later than originally planned (Image: Apple-VGP-BPS13 battery , VGP-BPS13A/B battery , VGP-BPS13A/S battery , VGP-BPS13/B battery , VGP-BPS13/S battery , etc.)

In recent years, aluminum and other non-metallic low-temperature characteristics of its light weight, high specific strength advantage, has been widely used in aerospace, automotive and civil industries, become an important processing material 〔4〕.

With the development of science and technology, sheet aluminum alloy in the industry used more and more widely, the welding capacity is continually expanding. Increase welding productivity, product quality, to achieve welding automation, intelligent manufacturing enterprises has been more attention to welding, particularly welding quality and higher precision robotic welding occasions especially. Combined with modern artificial intelligence technology, digital information processing, computer vision technology, the integration of high technology, also contributed to AC and DC welding technology is moving in high speed and efficiency of welding, welding control digital, intelligent control systems develop.

A principle and characteristics of AC and DC arc welding

The main features of AC and DC arc current zero-crossing time is very short, through the electronic control technology to power longer than the positive and negative half-wave and current ratio can be adjustable. Therefore, it is used for welding aluminum and its alloys, in the welding process has the following features: power stability, re-arc current zero crossing is easy, do not increase steady arc voltage pulse or high frequency, little effect of interference, and can be positive or negative half-wave power by adjusting the proportion of time to get the best penetration and cathode atomization, and improve the life of tungsten; adjust workpiece on the heat input, more efficient use of heat and arc arc used to meet a Masterpiece the special needs of some arc welding process, do not use the device to eliminate DC component and so on.

AC-DC inverter welding power source, mainly by ordinary inverter DC arc welding power source and the composition of the main circuit, through the inverter from the DC into AC, frequency adjustable, positive and negative half-wave power longer than the positive and negative half-wave current ratio can be adjusted freely within a certain range.

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