Tag Archives: Hardware

Dell: Read the Fine Print

Got a new Dell “home” catalog today… Its as random as ever… a dozen laptops, a dozen desktops. No coherency among product lines. Reading some of the fine print:

Dell’s Return Policy: If you cancel your purchase for any reason within 21 days, we’ll refund your purchase price minus shipping and handling and applicable restocking charges. You are responsible for the cost of shipping your system back to us.

Warranties: You can get a copy of our limited warranties and guarantees by writing Dell USA L.P., Att: Warranties, One Dell Way Round Rock TX 78762. To purchase warranty only or for more information on other service options, please call 1-800-915-3355 or visit dell4me.com/termsandconditions

And I thought this was an interesting technical note:

Shared Memory on Select Dell Dimension, Inspiron and XPS systems:
Up to 512MB of system memory may be alocated to support integrated graphics, depending on the system memory size and other factors (Dim. C521 and E521, up to 512MB, Dim E520, XPS, M1210 and 210, Insp. E1405, E1505, and E1705, up to 224MB, Insp. 1501, up to 256MB)

To paraphrase a well-known technical curmudgeon “we read the fine print so you don’t have to”.

1. Dell used to have a 30-day no questions asked return policy. Clearly this has now been reduced to 21 days, and you may end up paying an applicable restocking charge of how much? If you return a machine, I’d be surprised if the return shipping, fees and restocking are less than $100US.

2. They don’t publish their warranties in the catalog, because they are mostly legalize designed to protect the company and the customer be damned.

3. If you think you have 2 gigs of memory in your machine, you may only have 1.5 gigs of “useful” memory, as a chunk of it is going to the video board.

Note that these gems appear on two full pages, A14 and A15 of similar legal ass-covering.

Martin Geddes: Cold on VoIP? Exactly

Martin Geddes is sceptical.

I ought to explain why I’ve suddenly gone cold on VoIP.

It’s just I’ve watched my own behaviour. I’ve grown tired of the inconsistency of PC VoIP calls, and instead I’ve reverted to using landlines, mobiles and Jajah (for callback). But I’m still using IM to set up many of those calls!

The problem isn’t unique to any one client — they’re all proving unsuitable for business use with clients (which is most of my telephony needs covered).

The worst of all seems to be Skype conference calling. We probably would rate the quality as “unacceptable” for 50% of the attempts. When it’s good, it’s great. But that isn’t what I’m after.

He goes on to talk about how softphones don’t work very well.

Another problem with PCs is they’re just lousy telephones. When you hibernate Windows XP on my HP laptop, all kinds of audio settings seem to go wrong and the volume buttons stop working. Bluetooth is hopelessly unreliable, and who wants another wireless headset device to remember to charge up (and bring the charger when you travel)? Or to have to rush to fish out a headset and plug it in when a call arrives?

Before I get accused of plagiarizing the whole piece, you can read the full post.

There are a couple of issues here:

VoIP qua VoIP is really a very broad spectrum of technologies, encompassing softphones, free calling, replacing million dollar hardware PBX switches with open source software switches, and new applications. Martin’s definition for purposes of his discussion, if I read his article correctly cites two problematic applications; softphones on PCs, and conference calling on Skype.

I agree with his scepticism. My own interest in more in Asterisk/Trixbox and replacing the traditional circuit switched phone line infrastructure with packet switched calls over the internet. While I have made a couple of calls from my laptop, it seems a little bit silly to do so when I’ve got my $15.00/month cell-phone handy. So if softphones don’t work I’m personally not going to slit my throat.

But, the internet calls thing, is more problematic. Clearly, we are at the mercy of the internet when placing such calls… once your packets get outside your own local area network, they are flung out on the storm-tossed seas of the public internet. And, as we all are getting what we wished for with network neutrality, our packets are being treated like everyone else’s packets. So, your 911 call’s packets might be held up by an image of Johnny Depp, or even the whole movie.

One solution of this so far, as been “quality of service”, which is a euphemism for “prioritizing packets”. If people played nice, then, every router on the net would be smart enough to know that some packets are more equal than others, and voice and media packets in particular need to be forwarded before eMail and ftp packets. And indeed, if I’m making VoIP calls from my Trixbox while downloading those bloody updates for Windows, call quality goes down the tubes, (and this is with me, placing a single call, and downloading from a single workstation on my LAN).

The second solution, and really the only one at this point, has been to provide enough bandwidth so that whatever the exigencies of packet transfer there is enough slack in the network so that most of the voice packets will arrive, in the correct order. In buildings that use VoIP phones, the best practice is to run a separate set of 10BaseT cabling for the softphones. Mind you, this is a separate subnet from the data network that is currently in place. (Note: Someone will argue that this already in place, because we’ve got the existing two or four pair wiring in place for the telphone…)

So, is it responsible of us to suggest for a non-profit that they should:
1. Invest in new desk phones at $125.00 for each desktop location
2. Double their cable infrastructure
3. Purchase a quality of service router that at least will prioritize packets moving in and out of their own location
4. Purchase a dedicated server, with attendant UPS backup and management
5. Figure out how all this goes together.

when it may not work. Specifically, that you won’t be able to rely on 99.99% availability when placing internet calls, and you won’t be able to ensure that 99.99% of inbound calls to your internet-brokered phone lines will reach you.

when you can go to Best Buy or Amazon and get a Panasonic key phone system with six phones for $2500 or so, which you can forget about once it is installed.

I’m just asking.

Erasing your Hard Drive – Really

How to REALLY erase a hard drive by Robin Harris

Who Knew? Turns out there is a way to do a full erase on a hard drive already built into the firmware on the drive.

So what’s the magic?
Something called Secure Erase, a set of commands embedded in most ATA drives built since 2001. If this is so wonderful, why haven’t you heard of it before? Because it’s been disabled by most motherboard BIOSes.

Secure Erase is a loaded gun aimed right at all your data. And Murphy’s Law is still in force. But hey, if you’re smart enough to read Storage Bits, you’re smart enough to not play with Secure Erase until you need to.

I use Boot ‘N Nuke myself, which he also mentions.

American Power Conversion Support – Not

Same old story.

I’ve purchased thousands of dollars worth of APC uninterruptible power supplies over the years, I really like them, and consider this to be a default brand.

But two-three years after purchasing one, you need to consider replacing the batteries. The consequences of not replacing the battery smell bad; when the battery cells break down, circuits get shorted out, and you get a burning smell.

So…latest and greatest is one we purchased three years ago from Dell. Turns out it is an APC 2U rack mount Smart UPS, with a Dell part number. The “replace battery” light has gone on. After some investigation, the online manuals suggest that this happens two months or so before the battery needs to be replaced.

My first attempt to order a replacment from PC Connection fails. I got the 1400 VA size correct, but a 2U UPS has skinny little batteries that lie on their side, and they are actually enclosed in a sort of drawer that slides out of the UPS.

Like the good citizen I am, I attempt to use APC’s web-based tools to determine the correct part number and item. (When you are ordering batteries to be shipped, the cost adds up.) How is the the customer experience screwed up? Let me count the ways.

1. Even though this is a recent unit, the model number does not appear on the web site.
2. Even though the model number starts with DL (for Dell…get it?) the model number does not appear, although there are several other similar part numbers.
3. If you try to send an eMail, through the form, the eMail form bombs
4. If you try to to the “online chat”…the chat doesn’t work (nobody is at home…even during both normal business hours eastern time, as well as evening hours and weekends eastern time.
5. After you try the chat, and it says nobody is available to chat, the third time finally allowed me to send an eMail.
6. To India. The kind person was sorry, but he wasn’t able to answer my question, but he would send this to his supervisor.
7. Who didn’t exist, or didn’t write back, or whatever… (I waited a week).

The story does have a happy end, and a suggestion.
Avoid steps 1-8 ENTIRELY. Just call the battery replacement hotline at 1(800)300-7141. Within five minutes, a cheerful, competant person will tell you that the thing you are looking fir is called an RBC-24. with a suggested retail price of $259.95 (Although it did take a few minutes because he said “the system is slow today”.) Bingo.

Daylight Savings Time Change: Aftermath

With a stunningly cavalier attitude, my preparation for the daylight savings time issue consisted of checking the Microsoft web site, which led me to believe that as as long as everything was updated with patches, the change would be automatic. Today, checking for daylight savings issues, I had mixed results.

  • Unless you update and patch your Windows XP and Server 2003 machines, all bets are off. Even once they are updated, you may find yourself an hour later or early.
  • Workstations may take the time from a domain server, but if they don’t, you can reset them from the Time application in Control Panel, or by right-clicking the displayed time in the system tray.
  • Jeff Duntemann has a note about a free program that will do the update, and explains a bit more how the daylight-savings changes are stored in the registry.
  • As long as the Grandstream IP phones were set to account for daylight savings, they all flipped over without intervention. They update themselves from NIST.

Economics: Home-Grown vs. Full-Service VoIP Providers

While wallowing around getting the Asterisk/Trixbox up and running, I’ve been wondering about the economics of this especially when placed against other possible solutions. For example, Packet8 offers a business phone plan as a service; they provide you with phones, but everything else is provisioned over the internet. No server required.

Packet8 is a full service IP phone provider with both business and home phone plans. They offer a business service with a required minimum of three phones at $40.00/per extension. This includes unlimited calling throughout the U.S. and Canada. Calls to Germany are 2 cents per minute. So, the minimum would be $120.00 per month. They’ll sell you phones for about $99.00 each which is a good deal. If you would rather not buy the gear, and you can commit to a minimum two-year contract, they’ll give an option for $49.00 per month.

That covers the outbound calls and provides you with one inbound number. Additional inbound numbers, which can be virtual numbers, are $5.00 /month. They have a calculator on their site which gives you an idea of what the upfront and monthly costs will be.

If you wanted to start up with an Asterisk box, you would still have to buy IP phones. You can’t get a phone for much less than about $80.00, so that part of the equation is comparable.

Now, as I said with VoicePulse, there is a charge of roughly 2 cents per minute, and it all depends, on the amount of calling you are going to make. Comparing with the Packet8 rate, of $40.00 per extension per month, you would have to talk for thirty-three hours for a single extension to use up the $40.00 bucks. Further, with Packet8 the 5th or 8th phone costs as much as the first phone; there are no cost breaks as you scale up. They have a calculator on their web site that shows the upfront and monthly recurring costs.

Inbound virtual numbers with VoicePulse are $11.00 per month. Of course with Packet8, you don’t have a server; everything is done virtually over the internet connection.

After reading several reviews, (decidedly mixed), on Packet8, I’m thinking that the idea of the Asterisk box is still a good one. For one thing, using an Asterisk server allows you to maintain a hybrid system; a mixture of VoIP and connections to a landline. It also allows you to mix and match your own IP phones and soft phones. And, for me at least, the monthly charges are negligible. I can add as many extensions as I want, for just the cost of the phone hardware.

More Links:

Here’s an older review of the VoicePulse regular (non-Asterisk) service.

Test your network for VoIP. This service will place test calls between your location nd several cities including Sydney, Vienna, Boston, and Montreal.

A similar test for videoconferencing.

Finally, I ran into this great article about how to rewire the phone wiring in your home or business to use VoIP. Many systems, like the home service of VoicePulse, Packet8 or Vonange assume that you want to connect a single telephone to their servcie. This article explains how to work around that problem, and includes a great deal of general information about phone wiring. Get your dykes and screwdrivers ready!

Desktop Hardware Costs Going Toward Zero?

Prompted by an entry over on Jeff Dunteman’s Contrapositive Diary, (scroll down past the fluffy dogs…) I have been I’ve been watching with interest some eBay sales in the $250, range for Dell Optiplexes. I just saw an SX270 Pentium 4 3.2 Mhz with 512 K of RAM and Window XP Professional Service Pack 2 go for $255.00. This is a small notebook sized unit. Even with $40.00 shipping it still seems to be pretty interesting. As Jeff mentions, these were going for $1800 or more just a couple years ago. Little guys like these are ideal for mini servers or media center PCs.

Other low-end machines seem to be going for $150.00 and under. Many times you’ll see that they have things like 10 gigabyte hard drives; you have to wonder if perhaps the parts have been diddled. (a technical term for “swapped out with junk lying around on the bench…”) But, say, you find one with a 2.4Ghz processor, and 256Kb or maybe 512Kb of RAM and a 20 gig hard drive. Install kubuntu for an operating system and desktop applications. Total cost $300.00?

For the past few years, PC hardware has been relatively static. Each new generation of hardware brought only incremental performance improvements. I’m still using 2.8Ghz processors in my office machines (both refurbs as is my Dell laptop), and servers are using slower processors. I’d recommend avoiding the Intel Celeron processors, but Pentium 4s at 2.4Ghz and up still have legs, especially with Linux.

The new Windows Vista wants to see more of everything; duel core processors and two gigs of RAM will help it on its way. But that means recent hardware that led up to Vista is both a bargain, and viable for the medium term, when matched with Windows XP Service Pack 2. If I was looking to round out my office with a couple new machines, and I had more time than money, I’d check eBay and the Dell Outlet for refurbished desktop machines. Look at the Optiplex line especially.