Many DSL providers offer a free (after rebate) DSL modem/router combo in return for an annual contract. For most of us without spare tech gadgets lying around, this is a great option to get online quickly. For the internet provider, this is a means to fulfill an agreement with the hardware manufacturers.

Unfortunately for the consumer, the modems provided are crap.

For instance AT&T offers some customers a variant of a DSL router manufactured by 2Wire. While the modems themselves are easy to install and relatively maintenance-free, I’ve heard nothing but trouble from those that experience problems. One of my friends’ 2Wire modems fizzled out soon after the 1-year warranty agreement by AT&T. The modem booted up, but the power light would remain red. Hard resets and power cycling did nothing to the modem. The model was a 2700-HGB. AT&T suggested to her to buy a new modem (for >$79). I found several online accounts similar problems with these modems, and it turns out to be a faulty capacitor in the modem or a faulty power supply.

The power supply unit offered by 2Wire cannot be purchased separately. However, several electronic devices in the market use a similar 5.1V head. The quick fix for the 2Wire 2700H-GB power supply is a PSP power adapter (like this). For a mere $5, you can get your modem back and running again. If it doesn’t work, you’re only down $5.

computing tech

Those of you who are still hanging onto Windows XP should be relieved that M$‘s aging operating system still has life left for routine computing purposes. After all, the termination date for all hotfixes that M$ has set for WinXP is April 8, 2014. That should be plenty of time to maintain your beast of a desktop or laptop in commission until the next generation hardware is released.

I’ve collected a bit of tweaks throughout the years to help keep my copy of XP competitive on older hardware. I’ve decided to post a list of optimization techniques for Windows XP, mainly for myself and those of you who still may be using this operating system. Refer to my previous guide on netbook optimization, as some of these suggestions overlap.

Firstly, these tips are not specific to any hardware, although some systems may not be amenable to these tweaks. Laptops, in particular, have specific drivers that may be required to function properly. Be warned.  Secondly, I expect a minimum baseline in your system (ie Pentium 2 is unlikely to respond as well as a Pentium 4).

1. Memory. No matter what type of computer you have, you need memory. From my experience in ECE110 (operating systems) in college, the memory will give a higher end-user speed improvement over clock speed (although clock speed is what drives the electric current to the memory). You should have at least 1gb in your system. If your computer is too old to warrant a memory upgrade and has too little (256mb), then any sort of optimization will be limited.
2. Stop indexing. My Computer->Right Click hard disk->uncheck “Allow indexing Service to index this disk for fast searching”. You don’t need this.
3. Stop unnecessary services. There are specific services that are required for your system. Check to make sure which ones you need, and cut out the ones you don’t. Go to Start->Run->”services.msc”. There is a list of services that you can uncheck. A few that I have found to be useless for the average home user include:
   1. Error Reporting Service
   2. Help and Support (Who ever uses this?)
   3. Fast User Switching (If you had enough power to support multi-user logins, you needn’t be using this article)
   4. Telephony
   5. Anything with “Remote Desktop”. Security hole.
   6. Messenger. No way.
4. Cut some of those special effects. You probably don’t need most of them: Control Panel->System->Advanced->Performance->Settings. Uncheck the drop shadows and visual styles.
5. Optimize startup. Cut out Office Launcher and Acrobat startup. Let them load on first run of opening Word/PDF files. If your taskbar is over a fifth of your desktop width, then you might have too many startup programs.
6. Ditch Symantec Antivirus. This program has memory leaks. I don’t understand why some universities still purchase a site license for this useless software. If you need antivirus, use something like Comodo Internet Security.
7. Try Bootvis. It can optimize startup order. It sped up my startup by 10 seconds!
8. Ditch some unnecessary fonts. Excess fonts that you never use can bog down word processing and any graphics editors that you use. Control Panel->Fonts. Choose some to remove. Just don’t forget to keep the basics.
9. Use a tweaking application. I used to use TweakUI, which eventually became encompassed by PowerToys. X-Setup is an extreme tweaking app that I found pretty helpful. You can enable “fast updates”, disable tooltips, and other optimization hacks. I obtained a noticeable speed increase after using this tool.
10. Remove unnecessary programs. Some of the programs that you installed and used once can have startup functions that slow down the boot process.

That’s it! These basic tweaks can bring life to any aging Windows XP system.

computing tech

Obtaining a concise and accurate medical history is an art, and it often takes a lifetime to master. For the majority of us, we train for it daily in our clinical practice. On most occasions that we successfully arrive at a diagnosis through the history, the feeling is bliss. Rarely, however, it elicits anger.

Several weeks ago while I was on primary call, I was called by the emergency room (ER) attending physician about a woman who had left eye pain. The ER doc had dutifully checked the vision in her eye and found it to be 20/200 while the unaffected eye was 20/20. He added that she complained a sudden loss of vision in that eye as well.

I had just stepped into my apartment right before getting called, around 12:02am. Painful loss of vision is concerning by all means, and I rushed back to the ED while glancing through my Will’s Eye Manual for help.

My patient was a 40-yr old woman comfortably sitting in the exam chair. Her eyes were white, and on first glance, I could not determine which eye was in question. On brief exam, her vision in the left eye was indeed poor, although she did not have an afferent defect or a shallow anterior chamber. The fundus on the left eye was clearly severly myopic compared to that of the other eye. I suspected that she had poor vision in the left eye all along. Read more…

misc medicine, rant

Interesting use. Could someone elaborate?

medicine medicine, tech

Ever since the near doorman strike back in April, I’ve taken more notice of doormen in the buildings I enter. The NYTimes article about doormen pointed out the haphazard ways that one can become a doorman(woman). I still wonder how one finds a job opening for a doorman position without word-of-mouth referral. I’ve never seen any advertisements for doorman jobs.

I became curious enough on the workings of the doorman world that I decided to ask José, a doorman whom I’ve known for 6 years now. He staffs a 31-floor residential building (that I don’t live in) 4 days week. I befriended him when he allowed me to park my car on the sidewalk of the building when I was moving some furniture. I usually chat with José about once a month, whenever I pass by campus. We usually speak about general world matters, and I was always impressed that José never failed to educate me in politics. Last week we chatted about medicine, and I became sidetracked (from asking him about doorman life) when I commented on his esotropia (ET).

It turns out (no pun intended) that José developed a squint when he about about one year old. He was living in Cuba (!) at the time. His mother had pushed the doctors to straighten his eyes every week for 3 years, without success. Apparently there was a huge deficiency in physicians in Cuba, and the waiting list was infinite. He finally had surgery after 3 years, only to have his ET regress after months. He waited in line for surgery for almost another year before being approved by the government. The day of his surgery, he found out that his ophthalmologist had fled to Spain by means of a fishing boat earlier that morning!

Several years later, José emigrated to Madrid with his mother and brother.  However, ophthalmologists in Madrid determined that it was too late for his amblyopia to improve with surgery, and he fell off the waiting list for surgery to straighten his eyes (non-emergent). He never got around to getting repeat surgery. The interesting part of his journey was that he decided to emigrate again, this time to the US.

“Unemployment is just too high in Spain,” remarked José, “I wanted to come to the U.S.”

Why did he become a doorman?

“I have one bad eye. It’s not safe to drive a cab.”

Too bad taxi drivers with half of José’s vision don’t have the insight to find a different job…

misc life