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April 27, 2017

SAMSUNG RC520 laptop battery

Vimeo and similar videos without repeated pauses for buffering: YouTube's help page on Buffering and playback problems only specifies at least 500+Kbps for the best viewing experience. Most streaming services work well with 1Mbps, though you may need up to 3Mbps for high quality movie playback and about 5Mbps for HD TV.Even if your connection is fast enough, your ISP probably gives some types of data preferential treatment. Virgin should explain its traffic shaping policies if you ask. For example, I would expect Skype audio and video and perhaps BBC iPlayer streams to get preferential treatment over web surfing and file downloading. I would expect peer-to-peer traffic such as BitTorrent to be shaped to a low performance level. However, I would not be shocked to see streaming video performance slugged during the peak evening hours. The internet is a shared resource, and its capacity is limited.One way to find out if your ISP is doing odd things is to use a proxy connection, preferably an encrypted one, so that your ISP can't see what you're doing. Unfortunately, most of the free anonymous proxy services won't handle video streams or file downloads because of the vast amount of expensive bandwidth they consume.

However, both Speedproxy and Unblock YouTube will play YouTube videos. Sites like this appeal mainly to users whose employers or teachers have blocked access to YouTube, but if they play videos without stuttering, then the problem is with Virgin.If all else fails, you can often watch videos by downloading and playing them instead of streaming them. With YouTube, for example, you can pause the playback until the download line (the pale red one) reaches the end of the video. After that, the video is playing from a file in Temporary Internet Files. Alternatively you can download the video file in your preferred resolution using a site such as KeepVid or YouTube My Way. (I switched from KeepVid to YTMW after uninstalling Java.) For BBC content, you can install BBC iPlayer Desktop.Owners of a certain model of Dell laptop have been subjected to very unpleasant "cat urineâ€ odours emanating from their new machines.The powerful odour is "not at all health hazardâ€ and seems to have been caused by a "manufacturing process that has now been changed,â€ according to SteveB, a senior technical consultant for Dell posting on the companyâ€™s support forums.Dell was first made aware of the issue in June 2013 when a Dell user called "three westâ€ first posted about the smell of a new Dell Latitude E6430u saying "the machine is great, but it smells as if it was assembled near a tomcat's litter box. It is truly awful! It seems to be coming from the keyboardâ€.

Dell first suggested cleaning the keyboard and air vents around the laptop to cure the smell, but as more and more users complained of the same stench being emitted from the laptop from different countries and regions, it soon became clear that it wasnâ€™t users to blame but the actual laptop."Well .. here I am Sunday doing some work on the couch and my wife says ,What stinks like cat pee?. I said ... I think its this laptop ... she puts her nose up to the keyboard and BAM! It really stinks,â€ said gambit29.
The smell was narrowed down to an issue with manufacturing, which was apparently resolved in October, meaning that new machines running off the production line were cured of the cat-pee smell.For all those suffering from the smell, the only solution was to return the affected laptops to Dell for a replacement, although Dell was initially worried it wouldnâ€™t "have sufficient stock for everyone and also that any parts we are sending out do not also have the same issueâ€.Unfortunately, not all of Dellâ€™s replacement machines were free from odour as one user complained: "I just received my 5th replacement 6430u yesterday and the smell is still there ...â€Dell Latitude E6430u users are now advised to contact technical support to arrange for an exchange of any odour afflicted machines.Dell failed to elaborate exactly what was causing the issue, but the majority of users complained that the laptopâ€™s palm rest and keyboard seemed to be the culprit.As an IT contractor, I spend a lot of time on trains and in airports, working from my laptop.HP 454001-001 laptop battery

I run some pretty processor-intensive tasks on it â€“ virtual machines, data warehousing and SQL Server analytics, Excel spreadsheets with over a million rows etc. Put simply, I want more power. I'm not bothered about a touch screen, or graphics, or how light it is. I do care about memory, disk space, battery capacity, and processor speed. Windows 7 would probably be essential.I started out on a tight budget, so I have a Lenovo ThinkPad L530. Now I'm in a position to upgrade, what's the best money can buy? OliverEvery laptop involves some compromises over the main features, which are size and weight, speed, battery life and price. In the Windows market, there are many different types of laptop, each of which offers its own balance. Examples include netbooks (light and cheap but slow), Ultrabooks (light and fast but expensive), and desktop replacements (fast and cheap but big and heavy).The three types you could consider are Ultrabooks, gaming laptops and portable workstations. Ultrabooks compromise on speed but have the advantages of portability and long battery life, while gaming laptops sacrifice portability and battery life for speed. Portable workstations generally provide speed and durability, while also being designed and tested to run certain types of software, such as Adobe Creative Suite and Autodesk's AutoCAD. They often have expensive but high-performance Nvidia Quadro graphics cards.

For an Ultrabook, I'd look first at the Lenovo ThinkPad T440, not the X1 Carbon Touch. The T440 starts out as a modest beast, and at a base price of £791.19 it's fractionally cheaper than your current L530 (£800.40). The T440's appeal is that you can upgrade the specification online. In particular, you can increase the memory from 4GB to 8GB for an extra £33.60, or to 12GB for £69.60. If you are running virtual PCs that need 1GB-2GB each, the more memory you have the better. You can also upgrade the standard 500GB hard drive to 1TB for £31.20, and throw in a 16GB solid state micro hard drive from £34.80. This means you can have plenty of hard drive space with some of the advantages of an SSD. (The T440 would run faster with an SSD instead of a rotating hard drive, but the 256GB SSD might be too small for you.)The standard processor is a fourth-generation 2.6GHz Intel Core i5-4200U, which is slightly slower than your current third-generation 2.5GHz Core i3-3120M. The difference is that it's an ultra-low-voltage chip, running at a TDP (thermal design power) of 15W instead of 35W. This will provide much better battery life.

The T440 has two batteries lasting up to 17 hours, and the second battery is swappable. However, you can opt for a faster processor, and I'm assuming you'll go for the i7-4600U for an extra £284. This will give you a useful performance improvement on your Core i3, though not a massive one.The downgrade from Microsoft Windows 8 to Windows 7 is free, of course, and the licence allows you to upgrade later. However, Windows 8 runs slightly faster and uses less memory than Windows 7, and the latest Windows 8.1 Update 1 is much more usable on a traditional laptop. Also, Windows 8 resumes in about two seconds, which is a significant benefit when you're on the move.In other respects, you should find the T440 a good step up from your L530. Although the screen is smaller â€“ 14in versus 15.6in â€“ it shows more, thanks to the 1600 x 900-pixel resolution. You also save a significant amount of weight: it's 1.8kg versus 2.6kg. Finally, the T440 has built-in HSPA+ mobile broadband (3G Ericsson N5321), though you can remove this for a saving of £50. Total price online: £1,362.79.For more information, there's a review of the T440 and the improved T440s at NotebookCheck. The T440s has a touch screen and Windows 8.The 14in HP EliteBook Folio 1040 G1 is also worth a look. HP showed it in December, but it hasnâ€™t appeared on the UK website. (Update: The Folio G1 is available, and HP has provided a link to it.)

The users who really want maximum performance are the gamers. Gaming laptops often have quad-core instead of dual-core processors, and very fast graphics processors, such as the Nvidia GeForce GTX 780M. Systems often have both a large hard drive and an SSD, and perhaps a Blu-ray drive as well. Obviously they tend to be heavy and have relatively short battery life, especially when operating on full power. Most of them also have 17.3in screens, which I reckon is likely to be a deal breaker for you. However, a few have 15.6in screens, and there's a Dell Alienware with a 14in screen.The Asus ROG (Republic of Gamers) range includes the G750JH, claimed to be the most powerful 17in gaming laptop in the universe. It has a 3.4GHz quad-core Core i7-4700HQ processor and a GTX 780M with its own 4GB of graphics memory. But the processor has a TDP of 47W and the whole thing weighs 4.8kg.MSI has many similar or even better gaming laptops, including the MSI GT70 Dominator Pro, which has a 3GHz Core i7-4930MX Extreme that goes up to 3.9GHz on turbo.

Very few desktop PCs have anything as fast, partly because of this chip's suggested retail price: $1,096. However, the TDP of 57W means it's only suitable for 17.3in laptops.MSI also offers gaming laptops with 15.6in screens, which might be portable enough for you. The MSI GT60 2OD-092UK, for example, has a 3.2GHz Core i7-4700MQ processor (same speed as the HQ), 16GB of main memory, a GeForce GTX 780M with 4GB of graphics memory, a 750GB hard drive and a high-resolution 2880 x 1620 pixel screen for £1,854.94 on Amazon.co.uk. But it's still heavy at 3.5kg, and the battery is unlikely to last more than four hours of web browsing, or a couple of hours of gaming.The 14in Dell Alienware comes in three models and you could get one with a Core i7-4710MQ, 16GB of memory, GTX 765M graphics chip, 1TB hard drive and 1920 x 1080-pixel Full HD screen for £1,498.99. Weight starts at 2.8kg. Battery life isn't mentioned so I'd assume about three to four hours max.Although all these machines are powerful, they are not as practical as a ThinkPad T440, and their styling is, by ThinkPad standards, idiosyncratic and flashy. I think you'd be happier with something that falls a bit short by gaming standards but is still relatively powerful. For example, the Asus N550JV packs a Core i7-4700HQ and up to 16GB of memory, GT 750M graphics with 2GB or 4GB of video RAM, a 750GB or 1TB hard drive, and a 15.6in 1920 x 1080-pixel IPS touch screen into a slim (27.7mm), smart-looking 2.6kg package. Prices range from about £1,000 to £1,500, depending on the spec.

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