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Archive for the ‘computer’ Category

Old Notebook, Upgrade or not?

My girlfriend has a Sony Vaio VGN-C2S/P notebook from 2007 and it is getting old and slow. So her question was, upgrade or buy a new one? Well, the Vaio was build with 4 years old tech, a Intel Core 2 Duo 1,6 GHz Dual core processor, 2GB of RAM, a 80 GB hard disk and only 2 USB ports. You can get a notebook like hers for €300 these days, but for a true performance enhancement, one would at least need an Core i3-2 or i5-2 processor with 4 GB RAM and 500GB hard disk, meaning at least €500. That’s not very cost-effective considering her old notebook still works perfectly, so I decided to upgrade it instead. Like with her Samsung Galaxy S, the only condition is that no changes should be visible.
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Samsung Galaxy S Wireless Inductive Charging Mod

Well, after my Motorola Milestone 2 was sent in for repairs for 3 times in a row now and I decided to not use any Motorola devices anymore, so when Mediamarkt offered the Samsung Galaxy S Plus for €269, it was an instant buy. I mean, how can Motorola send me a defective unit back from repair not only once, but twice? I haven’t received it back yet from their third try, but oh well, let’s hope somebody on eBay will be happy with it. Okay, no more Motorola, all Samsung now, the Galaxy S Plus works way better anyway. In fact, everything is perfect, except for one little thing. The USB connector of the Galaxy S Plus is on the top. How do you dock a phone in portrait mode with the USB connector on top? eBay suggested a rather ugly method with plugging a cable on top. So I remembered the Palm’s inductive charging feature and wanted it on my new phone. But all guides on the internet are either ugly or voided the warranty, but I wanted the best of both worlds, so my mod has to be invisible on first view and don’t void the warranty of my all new phone. (As the Galaxy S is build identically as the Galaxy S Plus, this mod should work flawlessly with the Galaxy S, too.)

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Jailbreaking, Rooting, tweaking your HP TouchPad

The first thing I would do with a new iOS or Android device would be jailbreaking or rooting it, so how do I do it on my new HP TouchPad? After some searching, I found out that all you need is to switch to developer mode and that it is already built in. How great is that? Read more »

Goodbye and hello WebOS!

The fire sale of the discontinued HP TouchPad has reached Germany. For € 99, a TouchPad could be yours, if you could manage to reach the online shop of HP. It was obviously down, as everyone wanted to get hold of this bargain. So I walked right into the next Mediamarkt and tried talking the salesman into selling me one for the discounted price. Of course he hasn’t heard anything about the sale, and I was unable to show him the new price because the HP online shop was down. So I had to make him let me talk to his superior and he then agreed to let me reserve one until they get the new price. So when I was walking out of the shop to get some food, I suddenly got a call, well, guess who called, the salesman who didn’t want me to sell the TouchPad. The price drop is here, time for me to pick my first and probably last WebOS device.
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I bought an Apple product!

My friends know that I like to make fun of Apple fanboys, but now I’ve bought a Apple product myself. I was struggling really hard at “Media Markt”, oscillating between the cash desk and the shelves, but I did it! I bought an iPad from Apple. The iPad has everything, big screen, long battery life, (too) easy to use interface, chinese hand-writing input, WiFi and simple games unlimited… It has everything my Mom needs! That and the unbeatable price of € 499 for an actually solid looking tablet, I have to admit there is no better and cheaper solution for my Mom to surf the internet and playing easy games without having to worry about viruses or where the next power outlet is.
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The Perfect Home Server

Perfect? Is that even possible? I guess not, but my newest server is pretty close in my opinion. The Focus was to get power consumption and price as low as possible while maintaining performance and safety. My current home server is an averages PC with an AMD64 and 2 GB of RAM while having a RAID 5 with 6 hard disk. As you can imagine, my power bill is incredibly high, so I definitely want a more energy efficient solution this time.

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Notebook and other small devices’ power supply efficiency

Green IT is a big topic, that’s why more and more computer power supplies get a 80 PLUS label for showing off their superior efficiency. But if you every decide to run a Intel Atom based PC, use a PicoPSU, just power your notebook or charge your phone, you won’t really find out how efficient the power supply is. I came across this problem while searching for an efficient power supply for my new Atom-based home server. First, I wanted to use an 80 PLUS 350W power supply, but after reading some reviews, I found out that they are totally inefficient (<50%) on low load (<50W), which the targeted power consumption of my new home server is supposed to be. So I googled and found the PicoPSU, advertising >93% efficiency. Wow great, but wait, it needs to be powered by 12V DC. How efficient is the converter from 110/220V AC to 12V DC? No word on the manufacture site. I tried to google for efficient converter, but had no luck, so I gave up… until the case of my new home server arrived, a Gigabyte MIB T5140. Read more »

MultiSim, my first Android Application

I just got my new Android cell phone, the Motorola Milestone/Droid and I have to say Android is great! It’s so much better than Windows Mobile. A lot of the functionality comes from the Android Market. So while I was downloading Apps from it, I couldn’t find any tools for managing my analog dual-sim-adapter, so I decided to write one on my own. The Android SDK seemed to be very well documented, so I thought I give it a try. And guess what, I found the resulting program to be useful enough that I purchased a Market-Account for $25 and published it there. Find out more on the MultiSim section of my website.

Back online!

T-Home WTF?!A few weeks ago, my T-Home Entertain VDSL 50 stopped working, for no reason at all. My VDSL modem, the “Speedport 300HS” suddenly couldn’t sync anymore. I thought T-Com is probably doing maintenance, so I waited for a day, but it still wouldn’t sync. So I called the T-Com, asking what the problem would is. They told me everything should be fine, but I can order a technician, who can come to my place to check the line. The only condition is, if my line isn’t broken, I’d have to pay €100 for the technician.
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Things about Li-Ion batteries

Li-Ion batteries are practically everywhere. They are used for mobile phones, notebooks, even cars. But most people don’t really know about them and give out wrong hints on how to use and charge them. So here are two important facts about Li-Ion batteries you should know:
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