Wednesday, April 25, 2012

DISCUSSION - PCCW wifi coverage in Hong Kong

PCCW's wifi is one of the cheapest option of wifi connection all over Hong Kong, with 9,000 hotspots. The current cheapest plan costs only HK$48 per month, unlimited use for one registered device. No contract is needed, one month at a time.

However, when use, you will want to check if the coverage includes the places you usually will go:

When reading the coverage map, remember the signal is basically 2D!! That means, if you go up a building of 50/F, do not expect you can get any signal at all!!

For better coverage, many will use the 3G telephone network. The CONS is that it's more expensive and with slower bandwidth.

Friday, April 6, 2012

TIPS - IRQ not less or equal blue screen

This Windows blue screen message sometimes appears after plug in new hardware to a PC system. To troubleshoot this problem, you may follow these steps:

  • Unplug the new piece of hardware, is the message no more?
  • Do not assume your new hardware is bad. It may be your power supply unit (PSU) is not stable, or not giving enough power to the added hardware power consumption. Get another better PSU and try
  • Sometimes, bad memory (RAM) could be a problem, especially when you didn't add any new hardware recently. And, your system suddenly start to show such a blue screen. Do a memory test. Many will recommend you to use http://www.memtest.org/. Another simple way is, if your BIOS setup has memory test function, it could save you some time.
For a laptop, it may not be so easy to change the power supply unit. Then, try to disable some built-in functions like fingerprint, light sensor, 1394 port, modem, etc. of your laptop through the BIOS setup.