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- 28 Jul 2010
Streamyx Attenuation and SNR Margin explaination
Streamyx technology relies on ADSL. To provide high speed connection, ADSL relies on unused frequency bands of your telephone cable. A twisted pair copper cable can carry analog voice as well as digital signals simultaneously. The diagram below shows the bandwidth available for a typical telephone cable.
Red block: Analog voice signals. Your normal voice calls are allocated to a maximum of 4kHz.
Green block: Digital Upstream signals. For uploading data to your ISP.
Blue block: Digital Downstream signals. For downloading data from your ISP.
Notice that blue block is larger than green block. Because ADSL users typically download data more than upload, ISPs will allocate a bigger portion of bandwidth for downloading. That’s why your Streamyx download speed is much higher than upload speed.
Downstream traffic is located at the far end of your cable frequency range. Low quality cables cannot provide the entire frequency spectrum and will severely degrade downstream capacity. That’s why some customers have full upload speeds but crippled download speeds. Read the rest of this entry »
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- 26 May 2010
Missing D3dx9_34.dll Application start problem, How to!
Have you ever having trouble to load a programs and getting popup of missing D3dx9_34.dll ? And you know you have DirectX 9.0c installed but still having problems, reinstalling DirectX 9 from M*soft would not start.
I finally found a way to fix this.
A few simple steps.
1. Download DirectX from M*soft
2. Let say you save it in C:\downloads, run this in command prompt
3. Go to C:\temp, now you will have a lot of CAB files. Our focus is this file JUN2007_d3dx10_34_x86.cab.
4. Extract ( double click)& drag all the files inside JUN2007_d3dx10_34_x86.cab, into a new folder: C:\dx34 (create new folder if you don’t have it).
5. In C:\DX34 folder , right click d3dx10_34_x86_xp.inf , select Install.
Done.
Now try to run your application or game once more. It should fixed it. 
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- 7 Jan 2010
VMware ESX Error Init 461 The Execute Disable No Execute CPU
Helo I installed vSphere 4 on an a server.
Everything is working fine. The only thing i got is a red TSC line on the ESX Host Screen.
The line is as follows:
TSC: xxxxxxx cpu0:0) Init: 461: The Execute Disable/No Execute CPU feature is enabled for this machine.
For anyone who gets this error then make sure you have the memory execute thingy enabled in BIOS and also make sure you have VT enabled
thanks for everyones help on this one - one host upgraded and happy, one to go