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#1
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rebuilding computer, need help please
ok im rebuilding my computer, ive been saving for ages and ive got
£120 i plan to buy a barebones and a new cpu, i have managed to salvage some kingston value ram (ddr2 512mb 533mhz) i also have an ide hard drive to temporarily use untill i can afford a decent sata. (also a cd drive) anyway i intend to buy these components from ebuyer: (please follow links) barebones: http://www.ebuyer.com/UK/product/124906 cpu: http://www.ebuyer.com/customer/produ...duct_uid=87129 basically i want to know if i am getting a good deal for my money? im pretty sure the two are compatible but if they are not could somebody please tell me? any help would be apreciated many thanks |
#2
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rebuilding computer, need help please
"tomgasgas" wrote in message oups.com... ok im rebuilding my computer, ive been saving for ages and ive got £120 i plan to buy a barebones and a new cpu, i have managed to salvage some kingston value ram (ddr2 512mb 533mhz) i also have an ide hard drive to temporarily use untill i can afford a decent sata. (also a cd drive) The PSU @ 250 is very poor. |
#3
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rebuilding computer, need help please
does the psu affect speed? does anybody out there know of a beter deal?
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#4
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rebuilding computer, need help please
tomgasgas wrote:
ok im rebuilding my computer, ive been saving for ages and ive got £120 i plan to buy a barebones and a new cpu, i have managed to salvage some kingston value ram (ddr2 512mb 533mhz) i also have an ide hard drive to temporarily use untill i can afford a decent sata. (also a cd drive) anyway i intend to buy these components from ebuyer: (please follow links) barebones: http://www.ebuyer.com/UK/product/124906 cpu: http://www.ebuyer.com/customer/produ...duct_uid=87129 basically i want to know if i am getting a good deal for my money? im pretty sure the two are compatible but if they are not could somebody please tell me? any help would be apreciated many thanks There are plenty of processors listed as compatible, but it all boils down to how much power is available. http://support.asus.com.tw/cpusuppor...=en-us&cache=1 The Asus site has no info on the power supply provided. The downloadable "document" for the V3-P5V900 is a quick install guide, a hefty download, but basically the same skimpy information repeated in 10 different languages. So it doesn't come with a real manual. To estimate the power, I'm using a picture of the power supply in another similar Asus product (Case view of Asus V3-M2NC61S is similar to the V3-P5V900) http://images10.newegg.com/NeweggIma...110-073-02.jpg (Power supply in V3-M2NC61S is a 250W unit from Delta.) http://images10.newegg.com/NeweggIma...110-073-14.jpg 12V1 @ 10A, 12V2 @ 14A, 5V @ 18A, +5VSB @ 2.5A, 3.3V @ 16A, -12V @ 0.3A 3.3 & 5V total power less than 115W 3.3 & 5V & 12V1 & 12V2 total power less than 235W 12V1 & 12V2 total current less than 19A The processor you've selected, is one of these at 84 watts. Processor power comes from the 12V2 rail. http://processorfinder.intel.com/Lis...BX80547PG3400F 84W / 12V * (1 / 0.90) = 7.78A on 12V2 (the 0.90 stands for 90% Vcore efficiency) The rest of the 12V load, would be your one CDROM drive (say 12V @ 1.5A), your one hard drive (12V @ 0.6A), and some cooling fans (12V @ 0.5A). Those would load up the 12V1 rail. The total current so far, of 12V2 and 12V1 is 7.78A + 1.5A + 0.6A + 0.5A = 10.38A and that is less than the 19A combined limit. The power in watts drawn from the 12V rail is about 125 watts. That leaves 235W - 125W = 110W for the 3.3V and 5V rails. Typically, the additional loads on the motherboard might draw about 50W or so (and I have no way to calculate them, so that is only a guess). So it looks like you have enough power in the box, for a minimal system. Now, at some future time, you might want to add a graphics card. Those draw from the 12V rail. When it comes time to select a card, see an article like this, because it will show you how much of the remaining 60W or perhaps 12V @ 5A you might end up using. The 7600GT uses 27W, and I wouldn't use a stronger card than that. Other pages in this article, give the power numbers for some weaker cards. And initially at least, you'll be using the built-in graphics. http://www.xbitlabs.com/articles/vid...r-noise_5.html A 7300GS, for example, draws 16.1 watts. http://www.xbitlabs.com/articles/vid...r-noise_7.html In the Asus manual, there appears to be room for an optional fan in the front of the system. You may want to pick up a fan to install in there, to aid in cooling the box. One problem with small systems like this, is the environment inside the box can get pretty hot, due to the way they are cooled. Another thing to note - in terms of maintenance. If you have a motherboard failure, or a power supply failure, the motherboard is probably not a standard size. Only Asus would be able to supply a replacement that would fit. The power supply might also present a problem if you need another one. I don't really know what the warranty period is for the product from Asus. If either the motherboard or the power supply fails outside of the warranty, then you may end up replacing the whole barebones box. Otherwise, enjoy your new project :-) The built-in graphics should be fine for web surfing, email, and office applications. I would not recommend your hardware configuration for an OS like Vista, but aim for some older OS. And if you find 512MB of memory is too restrictive, you can always add another 512MB stick later. If you want to play 3D games, I'd consider a separate graphics card for that. Paul |
#5
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rebuilding computer, need help please
tomgasgas wrote:
does the psu affect speed? does anybody out there know of a beter deal? The PSU doesn't affect speed directly. However, you want to make sure you have enough power to run your computer properly. 250 W could be fine, depending on how much power the computer draws. For comparison, I just built a system with an amd64 dual-core cpu. The peak power I measured was 133 W, which was with both processors running full out. (The peak during booting was 121 W.) So for my system, a 250 W psu would have been fine, but it would have been pretty hard for me to calculate that accurately enough to feel safe building it that way. One thing you have to realize is that a lot of the more recent dual-core cpu's are actually *more* energy-efficient than their predecessors, even though they're faster, and have two cores. This is one way in which you may not be doing yourself a favor with the plan of using an older processor. You're not necessarily saving much (any?) money by buying the pentium 4, as opposed to something newer. The dual-core AMD I bought was $110, which is not much more than you were planning to spend on the pentium 4. If you just want a system at a reasonable price, it's not obvious to me that building your own makes sense. It probably depends a lot on how many parts you can reuse. Here in the U.S., when I've needed a cheap computer, I've been buying Great Quality brand PCs for $200, which is probably less than you'd end up spending on your projected system, if you include shipping, VAT, etc. On the other hand, if you just think it will be fun to build your own system, then go ahead and have fun! One thing to think about, though, if your budget is very tight, is that the first time you build a system, you may make mistakes, and those mistakes may end up costing you money -- money you don't have. The first time I built a system, I got the motherboard misaligned, shorted it out, and had to buy a new mobo. |
#6
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rebuilding computer, need help please
i may consider looking at an amd dual core, what are they like in
comparison to a p4? i do also have a 300w psu in my old computer, maybe i could use that case with a new motherboard? but it is an old case. |
#7
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rebuilding computer, need help please
"tomgasgas" wrote in message ups.com... i may consider looking at an amd dual core, what are they like in comparison to a p4? WHICH P4? The core 2 duo processors (technically still P4 processors) kick the ASS of any AMD processor (single or dual core), performance wise. In fact, the core 2 duo line is tops in both speed AND bang/buck, at the moment. So if that's the P4 processor you are asking about, AMD dual core won't gain you anything. If you are comparing AMD dual core anything to socket 478, or earlier LGA775 P4 processors, then you might as well flip a coin. i do also have a 300w psu in my old computer, maybe i could use that case with a new motherboard? but it is an old case. Terrible idea. First, your PSU probably won't support your new mainboard. Even if it could (which is highly unlikely), it's still a bad idea. Always start with a new power supply. Skimp on any other component (if you must), but NOT the power supply. Starting a new build with an old power supply is like building a skyscraper on a foundation of wet sand. You are engineering disaster, by design. -Dave |
#8
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rebuilding computer, need help please
its a 3.4ghz lga 775 p4 im chosing between that and an amd dual core.
because its cheaper to get a decent amd barebones than a p4 one |
#9
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rebuilding computer, need help please
"tomgasgas" wrote in message oups.com... its a 3.4ghz lga 775 p4 im chosing between that and an amd dual core. because its cheaper to get a decent amd barebones than a p4 one If the price is lower, go AMD dual core. Depending on what apps. you run, the performance will be about the same. -Dave |
#10
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rebuilding computer, need help please
ok i have decided what i am getting
i just need advice: will the following motherboard (barebones) and cpu work together?: cpu: http://www.ebuyer.com/customer/produ...duct_uid=87128 motherboard (barebones) : http://www.ebuyer.com/UK/product/124906 i dont want to end up buying a motherboard and cpu that arent compatiable. i really apreciate the help thanks a lot |
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