There are no transformers in power supplies for PCs. PCs have used switching power supply for decades now, which replace transformers.
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There are no transformers in power supplies for PCs. PCs have used switching power supply for decades now, which replace transformers.
Pete your post pre-emptively answers most every question one could have about anticipating an upgrade to the Windows OS. Common sense should be our guide but as we've seen many feature technologies never take off and others are missing from our available hardware. My personal opinion is to always wait for an OS to mature as well as waiting for motherboard reviews to appear.
Thank you for these fine suggestions, I know it will be a godsend for most of us.
George B. in Sarasota
Pete-
Even though this post might sound like it's attacking you it's not - any annoyance displayed here is directed at CNET and not you (It was very cool that you took so much time and wrote such a good response to this persons question and I'm sorry to use it as the basis for my rant).
Dear CNET Editors...HELOOOOOO....Do you think it would be possible to maybe once in awhile remember you're supposed to be a semi-technical resource and actually publish useful factual information or have you decided to waste away as a void of editorial fluff that serves only to propagate the dumbing down of the masses?
Would it have been against the CNET Mission statement to provide something as useful as the Microsoft link where THEY LIST THE REQUIREMENTS FOR WINDOWS VISTA AS WELL AS PROVIDE THE LIST OF ALREADY CERTIFIED DEVICES?
http://www.microsoft.com/technet/windowsvista/evaluate/hardware/entpguid.mspx
or
http://www.microsoft.com/technet/windowsvista/evaluate/hardware/default.mspx
As a computer professional that actually knows something about computers I am constantly embarrassed and appalled by the irresponsible dissemination of misinformation that steadily streams uninterrupted from CNET and other major news sources. I understand that you're writers and not engineers, but have you no integrity? Have you no feeling of shame over presenting yourself as a knowledgeable source only to fill people's heads with mostly misunderstood half-truths? Or is it that you're so confused yourself that you're unaware of how seldom you are correct? Hire some specialists that know something, heck hire people that are wrong 80% of the time but at least have some substance to their wrong answers. Or maybe add to your disclaimer that this site is just one big beauty contest and everything described inside is purely cosmetic and temporary.
/nick staff
nick.staff@comcast.net
nstaff brought up the most intelligent viewpoint on this thread, along with the most useful information...a link to Microsoft's list of hardware requirements for Windows Vista. All the fancy prose in the world can't beat that.
Sometimes the shortest and most simple answers are the best. Why read one person's prolix opinions on the quality of different computer components when you can get the straight dope right from the horse's mouth?
Reluctantly.
Entertainment is entertainment. I once wrote to a political talk show years ago - it was like a point vs counter-point type show. The answer I got back from the writer/producer of the show was that their show was simply to stir reaction from the viewers, to wit: to cause them to think about the views expressed (no matter how lame they were). They cared nothing about the content - just audience reaction, so my point was easily dismissed.
Well, Cnet seems to lean more toward entertainment these days, as I, too, see less substance. These recent efforts by Cnet to let some one else lead, (thus Cnet becomes a ''follower'' of sorts), does help perpetuate the dumbing down of the masses.
The original respondent's remarks about Plextor drives and LCD monitors were less than informed, in my opinion.
But then perhaps Cnet, playing the entertainment game of point vs counter-point, realizes that the originator's response would spark counter responses. This is the perfect method to stop doing YOUR job so you can have other, less informed, persons do it FOR you. And have others still chime in to counter the content!
That is fluff! Sure, we are willing to sacrifice information for involvement!? Isn?t this just grand fun!! ![]()
Why not just post the links to Microsoft and leave it at that? That information is useful and that is exactly what I'm looking for--for our members to collaborate and build info on this topic so that members can discuss and learn from one another.
These Q&As from the Community Help & How-to newsletter are open for anyone to submit an answer to--which you are always welcome to participate in at any time.
When you say "CNET Editors" --I'd like to let it be known and make it crystal clear that I'm not a CNET Editor, nor do I claim myself to be a computer expert/professional such as yourself. My role is to bring to the community's attention the questions submitted by our members in the Community Help & How-to newsletter and hopefully get enough answers/feedback/responses from our members, so that our community members can learn from one another and benefit from these discussions.
Each submission whether it is a question or answer is from our members, not from me... and this newsletter is totally driven by our members. I'm only on the sidelines to help facilitate it. And thanks to the contributions from our community members each week, we are able to present their whole hearted opinions, recommendation, and advice.
This community newsletter isn't for everyone and if you feel strongly that we are trading substance for fluff, then you are welcome to unsubscribe to the newsletter at anytime.
Take care and thanks for taking the time out to give us your feedback.
-Lee Koo
CNET Community
Lee, unless you decide what CNET does and doesn't publish this was not directed at you. However since you defended your actions I'll take the opportunity to explain some things:
- The A in Q & A stands for Answer not Assumption. If you are going to state that something is "the best answer" then it's certainly your responsibility to make sure that it's right. No one knows that you're not technical, and as this is a tech website everyone assumes that's the criteria used to judge it.
You say in your email you "know it will prove to be helpful to our members who are preparing for Microsoft's latest." Well guess what, that's dishonest.
I could really go on for volumes here Lee but I don't have the energy and I know nothing I say will make any difference anyway. It's just too bad though that so few people feel any responsibility for their actions. If you act like you know something and someone listens to you then you're responsible for what happens to them. Your also responsible for what happens to the friend they share your suggestion with.
You have no idea how many problems would have been solved by now if the publics focus and their hysteria wasn't constantly being pointed in the wrong direction by media professionals acting like they can explain things they know nothing about. CNET may as well start having these lists for the best pacemakers or the best parachutes. At least the results in those cases would be simple enough for people to realize who had given them wrong information. Unfortunately in technology it's harder to spot the snake oil salesman.
/nick
Excellent way to stand your ground Dude. I knew I was backin the right hoss.
What totally amazes me is the huge number of forum sheep who get all knee-wobbly and back away from a valid viewpoint whenever they're challenged by mods & admins. People from internet forums everywhere should visit this thread for a quick lesson in character and personal integrity.
The same could be said of you for not losing your voice at the sight of a moderator. It's appreciated and respected.
/nick
It's always nice to hear other voices of sanity - thank you =)
In general, these CNET forums' intended audiences are not MCSEs or aspiring MCSEs (or MCPs for that matter). Perhaps you would be better off subscribing to Microsoft Technet Flash, focusing your time on the Microsoft TechNet newsgroups and/or joining the ACM.
Even though this post might sound like it's attacking you it's not
You're right, it does sound like you're attacking Lee, and that is uncool.
any annoyance displayed here is directed at CNET and not you
Then perhaps you should have privately taken up your gripe with messageboards@cnet.com.
remember you're supposed to be a semi-technical resource
And the intended audience probably wouldn't be here if the forums started to read like a jargon/specification-heavy RFC or 30 lb reference.
THEY LIST THE REQUIREMENTS FOR WINDOWS VISTA AS WELL AS PROVIDE THE LIST OF ALREADY CERTIFIED DEVICES?
http://www.microsoft.com/technet/windowsvista/evaluate/hardware/entpguid.mspx
http://www.microsoft.com/technet/windowsvista/evaluate/hardware/default.mspx
The ''requirements'' listed on these pages are quite general. A modern CPU? Really? I wouldn't have guessed. Not only that, but if/when Microsoft does release specific requirements, they will be minimum requirements. In other words, the requirements will be the bare minimum you should meet so you can limp along. Sure, they're a starting point, but they need to be recognized as such.
As a computer professional that actually knows something about computers
Then I'm sure that you're also aware that all-caps in e-correspondence is considered shouting and rude.
I am constantly embarrassed and appalled by the irresponsible dissemination of misinformation that steadily streams uninterrupted from CNET and other major news sources. I understand that you're writers and not engineers, but have you no integrity? Have you no feeling of shame over presenting yourself as a knowledgeable source only to fill people's heads with mostly misunderstood half-truths? Or is it that you're so confused yourself that you're unaware of how seldom you are correct? Hire some specialists that know something, heck hire people that are wrong 80% of the time but at least have some substance to their wrong answers. Or maybe add to your disclaimer that this site is just one big beauty contest and everything described inside is purely cosmetic and temporary.
[Flame on]
Oh, please. Of all the self-righteous posts I've seen in a while, yours would get a razzie award if there would be such a thing for forum posts. With all your &%*#-talk, why don't you do something positive by contributing your expertise via these forums?
[/Flame off]
I came here to make a contribution and I don't see how responding to the specifics of your post would be doing that. I feel very strongly that whether the audience is made up of begginers or experts a web site should take great care that it pass along accurate and honest information. There have been 103 posts, probably as many arguments, a lot of anger and frustration, and every post brings us farther away from answering the persons question that initially brought us all here. Look at how much unpleasantness has been caused in a matter of days just on this one web page. The threads spawned from this post have spread innacuracies on Plextor and Sony drives, Switched Power Supllies, Windows Vista 32-bit edition, RAID-0, Forklift operators, and Intel and AMD Processors. And then there's Lee, whose vote of confidence for a technically incorrect post kicked this all off. Lee, the list moderator who majored in psychology and who freely admits he's not at all technical. Absolutely it enrages me, absolutely I feel righteous by comparison, absolutely I'll start typing in caps, because I'm so disgusted I could spit.
Absolutely it makes me sad to think of peple who are going to be dissapointed when they end up not getting what they expected.
CNET abuses the fact that they're not held to the same standards as accountants (figure it out if it intrests you)
/nick
If you build it now, you will want to replace that computer with a new one a year after the release of VISTA. The hardware available today should work with the new operating system, however, be prepared for issues that show up after the initial release to the public. It has been my experience that it takes at least one year for the bugs to surface in the OS/hardware that frustrate most users. The hardware manufacturers are releasing their products that can take advantage of the new OS features by this time. And of course, there is the software issue.
My choice would be to wait for the bugs to be worked out of the OS and hardware before making a purchase decision. If you need a new computer now, buy it based on your current needs and uses. Get the extras that you want such as fast processor, extra memory, large capacity hard drive and don't skimp on the power supply! Who knows, VISTA may work just fine on this new computer when it is released.
Something else to consider: Will a true 64 bit computer be backward compatible with the software you have now? The change from a 16 bit OS to a 32 bit OS was rough also. What is in store for us moving from 32 to 64 bits?
Unless you are a gambler, wait for the OS to be proven before putting a system together for it to run on (There are a lot of us who remember the ME fiasco). I believe you will be happier in the long run.
As far as I know all computer power supplies use switching not transformers. What am I missing?
Switching power supplies only have tiny transformers, if any. The weight he is referring to comes from, I imagine, a sturdier case, heavier duty wiring (more copper) etc. Most power supplies are made in Asia (Taiwan, Korea etc) so the lighter it is, the less the transportation costs. My guess is that his point is that if they are willing to spend the extra on the transportation costs, they are choosing components based on specifications, other than their weight. Unfortunately, too often the spec is the cheapest price, not the best part for the application. Hence one should always look at the manufacturer and their reputation.
Maybe you should take the power supply in your computer out, crack it open and take a close look. Transformers are what turn AC current into DC current. What planet are you on????
Maybe you should take the power supply in your computer out, crack it open and take a close look. Transformers are what turn AC current into DC current. What planet are you on????
For the laymans explanation go here:
http://computer.howstuffworks.com/power-supply.htm
For the very technical information go here:
http://www.semiconductors.philips.com/acrobat_download/applicationnotes/AN120.pdf
Computers for the last 20 years have run on SMPS (Switched Mode Power Supplies). While they do have transformers, the transformers are much much smaller and lighter than before SMPS was used because Switched power chops the current into a higher frequency and therefore the transformers can do their job with less effort.
Also, to clear up any misunderstandings about the transformers role in SMPS, here is a quote taken directly from the phillips web site (the second link I supplied):
"The chopped DC voltage is applied to the primary of a transformer,and the secondary voltage is rectified and smoothed to give the required DC output. The transformer is necessary to isolate the output from the input."
/nick
I'm a strong believer in the philosophy, "If it ain't broke, don't fix it." My home network has/had Win95, Win98, MacOS, NT 3.5, NT 4.0, and most recently WinXP Home. When my wife's vintage "original Bondi Blue" iMac had a video board go south, I turned it off and put the carcas in the basement. I've often had "test machines" running Linux releases on my network for periods of time as well.
It never ceases to amaze me how little real benefit to "solving my problems" has come from operating system upgrades over the past 8-10 years. I build and maintain simple databases, send and receive email, occasionally listen to internet radio, teleconference, send and receive faxes, and maintain a library of output from my digital camera. I also occasionally make up and test web pages. What more will Vista do for me than the existing operating systems I already know how to use, and how much time can I expect to invest learning the ins and outs of the new Vista feature set?
This is the first negative I've ever heard about Plextor drives. I've always had good luck with them, the drivers have been stable, and they've been work horses for me. I've also read reviews that agreed (Jerry Pournelle for one). Granted, they usually aren?t the fastest or cheapest, but I don't over-clock my CPU either; I prefer guaranteed performance over bleeding edge speed.
A lot of what you say makes sense, but some of it is unnecessary. Particularly the part where you say Sony DVD-R/RW drives don't last. The first one I bought was a Sony DRU500A. At the time (3 years ago) it was listed as a best buy in PC World magazine, so I ordered one at about 300 bucks. I've burned literally hundreds of disks with it. I still have it today, and it works fine, although it is significantly slower than my more-modern Sony DRU810A, which is currently listed as a best buy in PC World and cost me about 60 bucks.
If you had a bad experience with Sony, that doesn't mean that Sony products are inferior or don't last. It's just like the big Ford/Chevy debate. People have different opinions of which is superior. Their opinions are usually based on personal experience. My own is based on the fact that my Dad is an ex-GM employee. At any rate, they're still just opinions and should not be presented to the public as hard facts.
Sony optical drives rock! (That's just my opinion.)
Thanks so much for the excellent discussion on how to by a computer. It was perfect for me!
Pete's artical was great. Only thing I would add is to have two optical drives, a DVD-ROM and a DVD-Burner. If you miss time a backup and loose a hard drive, as I have, sometimes I have been able to copy files with Knoppix off my Windows XP drive using the ROM for Knoppix and the burner to copy. But if only one optical drive is in buget than go for a DVD-Burner and back up often.
Great advice in preparation for Windows Vista! I would, however, suggest careful component selection if one is planning on building a PC rather than purchasing. A power supply unit (or PSU as they are often called) is actually complex and should be chosen wisely.
I agree that a larger wattage PSU should be seriously considered (e.g., 500W versus a more traditional 350W) as newer components are demanding more power (e.g., CPU, video cards, SATA hard drives, and memory). More 'power' (technically, it's more 'current') is needed when you have one or more of the following scenarios: (a) lots of components, (b) faster versus slower components, and/or (c) you're thinking of 'overclocking' the CPU, video card, and or memory (for advanced users). Under these different scenarios, when the PSU is providing more 'current' (the technical description for this is 'the PSU is under heavier load'), one should be concerned with: (1) temperature, (2) stability, and (3) noise.
As a PSU's load increases:
* so will its temperature; additionally, the internal temperature of the PC cabinet may rise, too. A PC builder should choose a PC case designed with good ventilation...with multiple, and preferably large, fan options.
* a PSU provides different power levels (volts) to different components. As the PSU's load increases, its ability to provide precise voltage becomes more challenging. This should not be an issue until the PSU's load nears its rated limited.
* the noise generated by the PSU tends to increase. This noise typically comes from the cooling fan and/or the 'power rails'. For PSUs with variable speed fans based on temperature, the fan speed increases as temperature rises thus producing more fan noise; for PSUs with a single fan speed, that fan speed is usually set to high so, although the fan noise won't increase, you'll always be getting the loudest fan noise. In addition to the fan's blowing noise, you may be able to hear a buzzing noise; this buzzing noise tends to get louder as the PSU's load increases. This noise comes from the PSU's 'power rails'.
PSUs are typically tested under 'no load' (minimal components), 'load' (common components), and 'high load' (lots of components, high-end components, or overclocking) and can be categorized as:
* Excellent (expensive $$$): everything is minimal...minimal or no temperature rise, minimal or no voltage irregularities, and minimal or no noise increase.
* Good (moderate $$): everything is small...temperature rise is small, voltage irregularities are small, and small but tolerable increases in noise.
* At-Best...Okay (inexpensive $): everything is acceptable...temperature rise is noticeable but acceptable because of the PSU's cooling fan, voltage irregularities may not cause problems until the PSU's load nears its rated output, and the noise levels are quite noticeable and acceptable only because you purchased a low-end PSU!
It seems most cases come with an 'at best' PSU; cases with 'good' PSUs can be found, among other places, by companies that manufacturer both cases and PSUs. If I was to build a PC, my first choice would be to purchase the case and PSU separately...after all, since I'm choosing all the other components I may as well choose the PSU!
If you do an Internet search on 'PSU review', you should get quite a few sites that have good, all-around reviews; quite a few of these sites are in reference to 'quiet computing', of special interest to those wanting to build a PC.
Well, enough said on PSU consideration. Similar consideration should be applied when purchasing the other PC components...case, video card, memory, hard drives, etc. all have their own pecularities and are much more relevant when building a PC than when buying a PC!
I thought that one of the main demands from Vista was a powerful graphics card to support Aero Glass fully.
Can someone please enlighten us on what those requirements will be and which cards to look out for?
As stated by their respective companys:
Nvidia; All five, six, and seven thousand class GPUs are Vista Ready
ATI; All-In-Wonder
Being a long time Plextor user I have had 1 CD burner, and 3 different DVD burners. Each time I upgraded, I upgraded to get a faster drive. The old drives were used heavily, but never wore out. Since I read your article, I contacted Plextor to get their input.
I hope this clears up the issue.
Below is Plextor's reponse:
1. Is the Plextor and Sony the same DVD +/-R/W drive?
2. And does the Plextor wear out quickly?
3. Who builds the Plextor drives?
The answer to your first question is no
Mean time before failure is 10,000 hours of use
And plextor makes our own drives out of Japan