↓
 

Computer Aid

Ph: 0402 133 866

Computer Aid
  • Home
  • Blog
  • Contact
  • Web Services
    • Websites
    • SEO
    • Hosting
    • Domain Names
    • Portfolio
Home→Published 2008 → March 1 2 3 >>

Monthly Archives: March 2008

Post navigation

← Older posts

Easy money from property and/or shares

Computer Aid Posted on 30 March, 2008 by Luigi Martin30 March, 2008

For most of my life, I’ve hated debt.

I’ll avoid borrowing money from friends / relatives, so I want to borrow money from a stranger (eg a bank) even less.

But in the last 2 years, I’ve realised that if used correctly, debt can be a good thing. Its taken me 20 years to figure it out, and a radical change in the way I think.

Please note that what I talk about in this post is just a general guide. You need to adjust it to suit your individual circumstances (or better yet, get qualified financial advice… as I’m not a qualified financial advisor) 

Most rich people in the world got there by what is known as “good debt”

As an example, bad debt is borrowing money for a car (or boat, TV, fridge, etc). Lets say you borrow $20,000 for a car. As you pay it off over a few years… due to interest, you end up paying, say, $30,000. During that same time, the value of the car drops to $10,000. Its a lose-lose situation (you pay more than it was worth, and it drops in value).

However, borrowing money for something like shares or an investment property is good in many ways.

Lets look at property (but shares are similar, but need less money up front).

Since most people will have had a mortgage for a few years, chances are that your house is now worth quite a bit more than what you paid for it. eg: you paid $200,000, you took out a loan for, say, $190,000, and you now owe $100,000. In the meantime, the house is now worth $350,000… Thats a win-win situation… you owe less, and what you bought is worth more than what you borrowed, and all the interest you paid, combined.

At that point, most people think: big deal, I can’t get my hand on the $250,000 of equity in my own home without selling it… and then where will I live?

At some point, I read a book by Jamie McIntyre. It was then that I realised (after a lot of thinking!) that I can access the equity in my own home without selling it.

I kept thinking “where’s the catch”… where’s the flaw… it can’t be this easy.

Using the above example, a bank will be prepared to refinance your loan as a “line of credit”. A line of credit is basically like a credit card with a huge credit limit (using your house as collateral).

Lets say you get a “no doc” line of credit (Ie the bank will lend you up to 70% of the house value, and you don’t need to provide proof of income). So, on $350,000, a bank will lend you $245,000. You already owe $100,000, so you can draw $145,000.

The other nice thing about a LOC, is that you can arrange to have the interest payments be drawn out of the LOC itself… you don’t really need to repay your house… sort of.

The catch is that by taking the interest payments out of the LOC, the $145,000 available will gradually decrease as its used to pay the interest on your remaining loan. Once the money runs out, you must pay the interest in full.

This can give you some “breathing room”, but its much better to put this money to good use like this:

From the $145,000, use $105,000 as a 30% deposit on a $350,000 investment property. Make sure you get an interest-only loan (I thought it was a crazy idea, but there is a reason for it).

So, you now “own” $700,000 worth of property (2 X $350K), but you owe the bank $450,000 (scary isn’t it!). the breakdown is: $100K on your own property, $105K from the LOC (as a deposit), and the remaining $245K as an interest-only loan (possibly from another bank).

Now, you need to make sure you can meet the repayments for the next few years (about $40,000 per year), but its not as bad as you might think:

  • You still have $40,000 in your LOC. You can use this to meet repayments if you occasionally don’t have the money.
  • You have a tenant in a house that will pay about $18,000 per year
  • You need to pay the remaining $22,000 annual interest, but via negative gearing, the Aussie government will help you, so that you only need to pay, say, $11,000 per year (exactly how much depends on your income).

Now, as time goes on, things will get easier:

  • The rent will increase as house prices increase (so the tenant pays for a bigger part of what you owe.
  • Property values increase (I’ll demonstrate the effects in a moment)
  • Your wage / salary will increase in line with inflation

Its generally accepted that in any 10 year timeframe, property values will, at least, double.

So, If you can hang out for 10 years, then here is your situation:

  • You now “own” $1,400,000 worth of property (2 X $700K), but you (still) owe the bank $450,000 (not so scary now!)
  • The tenant pays about $700 per week ($35,000 per year)… so you now need to pay $5,000 per year in interest…
  • negative gearing will probably decrease the $5,000 a year even further.

What do you do now?

Repeat the process again: revalue the properties, refinance both properties to obtain 70% of $1,400,000. Then buy another investment property (or 2!).

Some say if you can own 10 average priced properties, then the renal income will be enough for you to retire.

With a bit of effort, you can pick properties whose value increase above average… then the process just happens quicker.

Personally, I’ve only just started going down this path, so it will be a few more years before I start seeing the benefits from borrowing to buy property and shares.

But I’ve got a good feeling about this… I only wish I was savvy enough to do this when I was twenty years old.

Posted in Hints, Tutorial | Tagged debt, property, shares

blue screen (unmountable_boot_volume)

Computer Aid Posted on 29 March, 2008 by Luigi Martin29 March, 2008

Customer has a laptop that no longer starts.

Before I saw it, I thought it would be another corrupt registry problem.

when I got to the laptop, I could see it was partly starting xp, and then would blue screen of death, with the error: “unmountable_boot_volume”.

So I decide to boot from bartPE, but I found I couldn’t do a fixboot command. Customer didn’t have the original XP installation CD, so I had to take it back to the office.

I then removed the HDD, connected it to the office PC, and backed up all the important data.

While that was happening, I did some research, and I found that a chkdsk /f , followed by a fixboot should fix the problem.

So I do the chkdsk /f e: (it took a while), but the fixboot e: command returned: fixboot is not recognized as an internal or external command … etc

OK, it looks like I’ll need to boot to the recovery console to complete this.

So I plug the HDD back into the laptop, start it (expecting to see the BSOD), and the PC boots normally 🙂

OK looks like I don’t need to do the fixboot after all. Cool!

Posted in Technical | Tagged blue screen, chkdsk, unmountable_boot_volume

why do some people insist on using fixed ip addresses, instead of dhcp?

Computer Aid Posted on 28 March, 2008 by Luigi Martin28 March, 2008

Within one week, I’ve had 2 customers (both businesses), who have called me out to fix a network issue… and in both cases, the problem was due to a network that had a mixture of dhcp-assigned IP addresses, and fixed IP addresses.

In one case, the entire network of over 15 PCs were setup by another company… All with fixed IP addresses (and no one keeping track of the IP addresses)… a recipe for disaster, but too many PCs for me to quickly switch over to DHCP in just a few minutes… I guess I’ll need to wait until the customer sees the need to change to DHCP.

The other customer was more annoying: I initially setup the 5 PCs to use DHCP… and at some point, somebody decided that two PCs were better off using a fixed IP address (but the router hadn’t been changed to remove those IP addresses from the DHCP pool…). After many network dropouts, and duplicate IP address problems, I was called out and eventually tracked down the problem… Whats really annoying, is that it was so unnecessary.

Posted in Technical | Tagged fixed ip address

why would a lanier printer need an ethernet switch?

Computer Aid Posted on 26 March, 2008 by Luigi Martin26 March, 2008

A customer just got adsl broadband connected (she was using satellite internet before that). So I was asked to set it up.

While assessing the network setup, I found that her main PC was connected to the satellite internet via usb, and the PC was also connected to a 6 port ethernet switch. The switch was also connected to her big new lanier printer, and to a wireless access point.

To make it all work, all the ethernet devices seemed to have fixed IP addresses… This is not looking good…

When I explained the benefits of getting a wireless router (and retiring the switch and wireless access point), I’m told that she was sold the switch by the printer tech, just a few days ago, while he was setting up the printer… but she didn’t understand why she needed it.

I take a closer look at the printer, and I see it has a usb port… it could have just been setup via usb, without the need to muck around with an ethernet switch. Anyway, I don’t have time to fiddle with the printer, so I’ll work around it.

Another look at the printer settings, and I see it doesn’t have any DHCP capability… so it has a fixed IP address of 192.168.0.100. Easily fixed though, I install the adsl modem, a wireless router, make sure the router always allocates the same IP address to the printer (based on the printers MAC address… boy, was the MAC address hard to find… it should have been listed under network setting, rather than printer status… grrr).

In this day and age, I cannot see why anyone would setup a network with fixed IP addresses (except out of sheer ignorance).

The built in DHCP and firewall in most routers today, means that network devices with fixed IP addresses should be few and easily integrated into a DHCP network.

With DHCP, new PCs should just plug into the network, and go without any network setup. A bit of work up front saves lots more work further down the track.

Posted in Technical | Tagged dhcp, lanier printer

how to improve your vehicles (car, 4X4, truck, etc) fuel economy

Computer Aid Posted on 25 March, 2008 by Luigi Martin25 March, 2008

The things I think of while travelling from customer to  customer…

I’ve noticed that some people look for a “magic” way to improve fuel economy.

Often, it involves adding tablets, or other additives to the tank… but usually at an extra expense…

Why bother?

I don’t see the point in saving, say, $2 per tank, where an additive can cost $1 per tank…

The are many other proven ways of improving your petrol mileage, but many people avoid them.

Why? usually because these methods involve changing driving styles, attitudes, and doing regular maintenance.

Whats the best way of improving fuel economy?

Slow down. It’s so difficult for most of us to do, but its also the most effective way to save petrol.

Depending on your vehicle type, driving at 90kph instead of 110kph can improve your fuel economy anywhere between 10% and 25%

How much time will you “lose” by travelling at 90kph?

At 110kph, you will travel 110Km in 60 minutes.

At 90kph, you will travel 90Km in 60 minutes.

At 90Kph, it will take you 73 minutes to travel 110Km (ie: at 110kph, you save 13 minutes, but it costs you lots more (in extra petrol).

I’ve heard some people disagree that a lower speed saves petrol… The argument goes something like this: by going faster, I get to my destination faster, so I spend less time running the engine, so it gets less chance to burn fuel… so I end up saving petrol.

Of course the argument is false, as its well known travelling at higher speeds means you use more fuel per Km compared to travelling more slowly. The harder you press the accelerator pedal, the more petrol you send to the engine

The ideal way to maximise your fuel economy by driving slowly, is to travel as slowly as possible while you are in top gear… for example: its more economical to travel at 70kph (in 5th gear), compared to 90kph (in 5th gear); but travelling at 60kph in 4th gear is not as economical as 70kph in 5th gear.

The other “simple” way to improve fuel economy, is to maintain correct tire pressure. A correctly inflated tyre has a slightly larger diameter than an underinflated tyre, so each rotation allows it to travel slightly further (and it also runs cooler, and is safer due to better vehicle handling characteristics).

Some people also use “accelerate, then coast” to save even more petrol. I don’t think its worth it. The way it works is you accelerate up to, say 80Kph, then you switch off the engine, and coast until the speed drops to say 40 kph, then you turn on the engine again, and accelerate again…

This works well in theory, but I don’t thinks its practical, and it can be dangerous (it you suddenly need to accelerate).

I believe hybrid cars are more capable of implementing the “accelerate then coast” method, but I think simplest solutions can sometimes be the best.

Posted in Hints | Tagged fuel economy, petrol

DS6200PVR: a good upgrade from a VCR.

Computer Aid Posted on 24 March, 2008 by Luigi Martin24 March, 2008

I’m in the middle of upgrading our “entertainment” system, and after looking at a few PVRs (ie Personal Video Recorders… digital set-top boxes with a hard drive for recording TV), we settled on a dick smith DS6200PVR

Its basically a rebadged homecast system.

It doesn’t have bells and whistles like component outputs (just composite, svideo and scart), no high definition (hdtv)… just standard definition (sdtv).

But the software works well, its easy to use, and the PVR has a dual tuner (so we can record 2 channels simultaneously).

All up, its much better than any VCR I’ve had in the past. And the picture quality is much better than VHS.

At some point in the future, I might upgrade the hard drive from 160Gb… I just need to make sure I do that before all IDE drives disappear in favour of SATA!

Posted in Technical | Tagged ds6200pvr, hdd pvr, vcr upgrade

problem with fixed IP addresses

Computer Aid Posted on 23 March, 2008 by Luigi Martin23 March, 2008

A customer had problems connecting 2 PCs to the office network. The last time I was there (about 3 months ago), all the PCs worked well on the network.

I take a look at the XP PC and vista laptop, and I notice that they are on a different workgroup to the rest on the office. There is an Office workgroup, and an msoffice workgroup… so I make them all msoffice.

The vista laptop still has problems though… sometimes it can see the internet, but cannot see any network shared drives… other times its the other way around…

I look at the TCP/IP settings, and I see its using a fixed IP address. I’m trying to think of a reason why a PC would be changed from DHCP to fixed IP addresses… but all I can come up with, is someone changed it due to their limited network knowledge, while attempting to fix another problem.

Anyway, once back to dhcp, its all running normally again.

But a few days later, I’m called back, as another vista laptop is now acting up.

I take a look, but it has DHCP enabled.

The owner says he sometimes gets a message about a duplicate IP address.

OK, looks like I’ll need to check all PCs, looking for which ones have been switched over to fixed IP addresses.

It turns out just 1 PC (the main file server) needed to go back to DHCP. 30 minutes later, everything is working smoothly again.

The only potential problem, is a network printer that was installed a while back. The printer tech did all the work… and I was never involved… if the printer uses a fixed IP address, then its a potential “timebomb”.

Next time I’m called out, I’ll take a look at the settings, and if needed, I’ll setup the network router to allocate a fixed IP address to the printer.

Posted in Technical | Tagged fixed ip address

repairing filesystem corruption on ubuntu / xubuntu

Computer Aid Posted on 22 March, 2008 by Luigi Martin22 March, 2008

Customer called, saying he has a ubuntu system, but it stopped booting up correctly, and mentions things like fsck, and unmounting filesystems. He also admits that he pulled the power on the PC, instead of shutting it down correctly…

Over the phone, I manage to figure out that the root filesystem needs to be checked, but it seems that theres a catch-22 situation (which is, unfortunately, very common amongst many modern OS’s): main filesystem is corrupt, so OS cannot start… but filesystem cannot be fixed unless the OS starts…

He wasn’t given a ubuntu CD, so I download the latest ubuntu (7.10) burn it to cd, and pay him a visit.

When I get there, it looks like he has xubuntu, but all linux distros should have standard filesystem types (ext2, ext3, reiserfs, etc)… so it shouldn’t be a problem.

I boot from the CD, find I need to do fsck /dev/sda1 but its currently mounted.

OK, I try umount /dev/sda1, but I’m told /dev/sda1 is not in the fstab file… I eventually umount it (indirectly) by using parted

but when I try to fsck /dev/sda1 I’m still told it is mounted (and I’m not root anyway).

I try to login as root, and to su – root, but I don’t seem to have the correct password.

At this point, some research is in order. So I connect up my temp PC to the customers internet, and find out that ubuntu disables the root account (but that administrator commands can be done by using the sudo command).

Ah, this feels a bit more secure than most linux distros I’ve seen… I might take a closer look at ubuntu in the future.

Anyway, I run: sudo fsck /dev/sda1

And after about 5 minutes, it completes, with what looks like a few minor errors (which got corrected).

I remove the live CD, and restart the PC… and this time it starts correctly. Good.

Posted in Technical | Tagged fsck, password, root, xubuntu

Vista SP1 (Service Pack 1): what you can expect (slow install)

Computer Aid Posted on 21 March, 2008 by Luigi Martin21 March, 2008

I was working on a customers Vista PC, when it said it needed to run a windows update. I had just installed a trial version of Office 2007, So I figured it was an update to Office.

It actually turned out to be the long awaited SP1. And I sure had to wait for it to complete.

Admittedly, Vista was running on a celeron 420 (1.6 Ghz) Acer system, with 1Gb RAM.

So I found myself waiting for the download to complete… which wasn’t too bad, at, I think, 79Mb, which is considerably smaller than XP SP2 (278Mb!).

After the download, I waited 30 minutes, while it ran and installed the SP1 package.

After that, I was told vista needed to restart. I wasn’t surprised.

While shutting down, Vista showed a “shutting down” screen, saying something like: “installing updates” Stage 1 of 3… 0% complete

Stage 1 took a total of about 60 minutes… and about 15 of those minutes were spent at 68%

Stage 2 seemed to go a bit faster… with a few sudden bursts.

Since I was just glancing at the screen every once in a while, I suddenly noticed that the PC was booting… What? did I miss Stage 3? Or maybe it flashed past in just 10 seconds?

No such luck.

After the restart, vista started Stage 3, and slowly counted from 0% to 100%

All up it took about 2 or 3 hours of waiting.

My impression of SP2?

In 10 minutes of testing (not much really), it didn’t feel any faster.

Control panel took its time (as usual) to show all the icons.

Starting and stopping applications like word and outlook seemed no faster.

Starting control panel a second time was visibly faster.

The disk seemed busier (probably doing it usual background indexing for a faster search).

Starting and stopping vista didn’t seem any faster or slower.

Memory usage (from task manager) didn’t seem any different (around 550Mb in use after startup… with little else running besides antivir).

I copied a 280Mb file (disk to disk), and the copy seemed about the same speed.

I was hoping the microsoft had downplayed the performance improvements, in order to “under promise, over deliver”… but they just delivered what they said: not much.

Posted in Technical | Tagged service pack 1, slow, SP1, vista

printer problem (and some competitor feedback)

Computer Aid Posted on 20 March, 2008 by Luigi Martin20 March, 2008

I get called out to fix a printer that won’t print.

Once there, I find out that the PC had previously been taken away to have an infection removed (by another company… a competitor, of sorts).

I manage to setup the printer by unplugging the usb port before installing the drivers.

But while I’m there, I notice the PC doesn’t work very well… strange errors from the firewall, and it tends to lock up when trying to open up the antivirus application… and its quite slow for a 2.8 Ghz P4 with 512MB RAM.

I’m surprised that this is a PC that has been cleaned of an infection… and some things are obviously not working correctly.

The customers are friendly and talkative, so I get to hear a few things about my competitor.

It turns out that the PC was away (being worked on) for over 2 weeks, and the customer got charged for about 5 hours of work (over $400).

So the customer was not overly pleased, as the technician was not as super as his name would imply :-).

I do some extra checks, but I admit to the customer that the PC has some strange problems… and it probably needs some work done (partly to prevent the lockups, and other errors when the PC starts)

I leave after 1 hour and I’m sure they’ll call me when they need their PC running faster.

Posted in Technical | Tagged supergeek, usb printer

A security tutorial to a chinese delegation

Computer Aid Posted on 19 March, 2008 by Luigi Martin19 March, 2008

I had a company ask me to give a brief presentation to a delegation of about 16 Chinese officials.

It sounds interesting, so I agree. Just a 30 minute talk about maintenance and security on PCs and the internet.

I’m then told that they are senior government officials… some part of the police system… hmmm

It needs to be a simple talk about “what is the internet”, PC maintenance, and the need to maintain PCs patched and infection free, as well as how to encrypt sensitive files… its all basic stuff (to me).

Although I wonder: the knowledge I’m giving should be easily obtainable within China.

Anyway, on the day, as I launch into my presentation, the translator/facilitator tells me I don’t need to mention the really basic stuff… they already use PCs and the internet, so I should focus on the PC security, in order to indicate the technical depth from by 20 years experience.

OK, so I use my presentation as a vague guide, and improvise. I end up doing a reasonable job (since I know a lot of this inside out).

At the end, everyone seems pleased, and I’m asked 2 or 3 relevant questions

So despite some miscommunication beforehand, everything turns out well.

It feels strange to be in a room full people, but not understand a word that’s being spoken.

Posted in Business

Post navigation

← Older posts

Archives

Categories

Recent Comments

  • Sue Jones on outlook error 0X800ccc0e while sending emails
  • Blair Newmann on AdSmartMedia advertising
  • Private Investigator in GTA on Divorce, consent orders, and superannuation splits: getting the wording correct

Tags

802.11g ADSL amd android bigpond broadband bsod defender dell email exitjunction firefox firewall gmail Google google contacts ie7 infection internet connection ISP laptop Linux m1188a ntldr is missing office 2007 outlook outlook express password power supply ram registry repair install sata scam slow telstra thunderbird Toshiba usb vista wifi windows 7 wireless wordpress xp
Copyright © 2005-2015 Computer Aid
↑