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Thread: Upgrading compaq 5423US 5000 series




  1. #1
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    Default Upgrading compaq 5423US 5000 series

    I wanna buy a new motherboard but compaq is sometime proprietary. Does anyone know if this model is that way. And if so what can I do to upgrade my motherboard other then sending it into compaq which I won't do.

    I just read on amazon about this model and it says it easily allows future upgrades. Hope so.
    Last edited by bio_zombie; 12-29-2004 at 02:39 AM.

  2. #2
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    Default Re: Upgrading compaq 5423US 5000 series

    You can't install windows stuff on a motherboard. I am not sure what you meant though. The problem here may be that your case is Mini-ATX so you will need a Mini-ATX motherboard. It would be better if you could post your current specs. CPU-Z can find that stuff out if you do not already know.

  3. #3
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    Default Re: Upgrading compaq 5423US 5000 series

    Quote Originally Posted by bio_zombie
    I wanna buy a new motherboard but some people tell me that compaq sometimes has windows stuff installed on the motherboard. Does anyone know if this model is that way. And if so what can I do to upgrade my motherboard other then sending it into compaq which I won't do.

    I just read on amazon about this model and it says it easily allows future upgrades. Hope so.

    Maybe they are talking about updating your Bios. If that is the case HP\Compaq has a user freindly driver update website listed below.

    Just choose your operating system and download whatever you find that needs updating then install it. For instance the Bios update for you motherboard Bios would be listed under ROMPaq for Windows XP. For Windows 98 there are no newer updates needed for your bios.

    http://h10025.www1.hp.com/ewfrf/wc/s...&lang=en&cc=us

  4. #4
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    Default Re: Upgrading compaq 5423US 5000 series

    Compaq 5423 US 5000 series

    motherboard info
    manufacture: compaq
    model:0784h
    chipset: intel i845d
    southbridge: intel 82801BA (lCH2)
    Intel Pentium 4 1.6

    I really wanna upgrade my motherboard and processor. I also have 4 memory sticks but my current board only has 2 slots so I want a motherboard that has at least 3 slots if not 4. SO my question is can I upgrade my compaq computer by myself with no problem or should I just start building a new one. I have $350 to spend.

  5. #5
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    Default Re: Upgrading compaq 5423US 5000 series

    "I'm afraid that most of the 5000 series used proprietary power supplies" found this on another forum.


    Reading that most compaq stuff is proprietary does this mean I can't upgrade my motherboard without buying new computer?

  6. #6
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    Default Re: Upgrading compaq 5423US 5000 series

    Hey, I would say keep reading here and other sites about computers.... get excited about all thats going on .. ask questions ... save ya money ..... then make another using spare parts or make a total new one and have 2 computers ...WOOT !!
    Vulcan chicks are hot .......... Cezch chicks are hot ............ my left palm is not

  7. #7
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    Default Re: Upgrading compaq 5423US 5000 series

    Quote Originally Posted by bio_zombie
    Compaq 5423 US 5000 series

    motherboard info
    manufacture: compaq
    model:0784h
    chipset: intel i845d
    southbridge: intel 82801BA (lCH2)
    Intel Pentium 4 1.6

    I really wanna upgrade my motherboard and processor. I also have 4 memory sticks but my current board only has 2 slots so I want a motherboard that has at least 3 slots if not 4. SO my question is can I upgrade my compaq computer by myself with no problem or should I just start building a new one. I have $350 to spend.
    Chances are that a new motherboard will not work in your Compaq case unless its a board from Compaq$$$ and they tell you that its compatible. Luckily a new generic case is fairly inexpensive at www.Newegg.com (lots of ATX format cases to choose from. Since you are upgrading the CPU and board you will need a better powersupply unit than the one you have in your Compaq system. Also, since you already have memory make sure you choose a motherboard that supports it.

    Building a computer is simple to do if you have basic computer hardware knowlege but judging from your original question I'm guessing it might pose a challege. Luckily you found the right forum to ask questions about computer hardware so I'm guessing you will be able to figure it out with the help of people from Tweaktown forums.


    You could salvage your Drives from your Compaq system to save on cost and use the same monitor you have if you plan on building your own system to save on cost but you will need these things to build your new system;

    1. ATX case. starting at about $25

    2. ATX motherboard. Starting at about $30

    3. PSU (Powersupply unit) sometimes comes with the case. I'd use atleast a 450 watter. $0 to about $100, depends if you buy a case and PSU together or not. A good seperate PSU will run aroud $50 which would be better than most that come with a case.

    4. CPU and heatsink. You can go with Intel or AMD CPU's but make sure the motherboard is compatible with the pin count and CPU type you decide to get. Get a retail box package CPU which includes a heatsink. $100 for something decent, $150 and up for something good. I recommend good becuase a CPU is something you ussually won't upgrade like a video card or something that is just a plug and play device.

    5.video card, this can get spendy if you are a serious video game player, starting at about $65 for a decent one or $165 for a good one. You can get one equivalent to, or slightly better then the videocard that came with your Compaq system that is integrated onto a motherboard for free if you get a M-board with onboard video, but I suggest getting something atleast decent or good if your into video games. The spendier the video card the better it will probably perform.

    6. Sound card, Most motherboards have a soundcard integrated onto the board which will probably be fine for you unless your in a band or something. Should cost you $0.

    7. Ethernet card, just make sure your motherboard has one if you use a highspeed internet connection. Cost would be $0 then


    Things to salvage from your Compaq system.
    1. All the drives. the CD\DVD rom drive, the harddrive unless you decide to upgrade this also then use the Compaq one as a slave drive for extra storage.
    The diskette drive in your compaq system might not have a faceplate on it, if it does not then you might decide to get a new one of these.

    2 The modem. keep the modem from your Compaq system unless you want to spend $10 on a new one.

    3. The IDE cables from your Compaq system should be reuseable on your new system if length permits.

    4. System Ram unless the stuff you already have for your new system is faster, then don't use the old stuff becuase it will slow down your new Ram. Again make sure your Ram fits the M-board you get.

    5. Keyboard and mouse.

    6. I'm assuming you have an O.S. (operating system) you can use for the new system....

    Thats about all I can think of off the top of my head. You should be able to do all this for close the $350 or less (around $200) and have something better than that old Compaq system if you don't go too fancy. But now if you want fancy it might not cost you more. About $500 if you use the same monitor and your other stuff.

  8. #8
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    Dec 2004
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    Default Re: Upgrading compaq 5423US 5000 series

    Hey thanks for replying. I went to my local DIT store and for about $250 I can get a case(with power,but if not you say 450 should be good?), motherboard, and new processor and that's all I need. I have everything else I need in my compaq computer(hard drive, cd and dvd drives,graphics, sound) I just wish I could say the brand names DIT had so I can tell if it's a good deal. All I want in my motherboard is it to be compatible with my memory which the guy at the store said it will be and get an amd processor for it. I'll still keep my compaq computer and put my old graphics card in it and start building up a 2nd less powerfull computer!(maybe I'll be nice and give it to my brother)

    I video game a lot so amd would be better then intel wouldn't it?

    Sucky thing is I bought comp at best buy and never got a windows xp disc. all i have is a recovery disc. Is there any way to contact microsoft and have an xp disc sent or something? Or will i have to buy xp all over again?

    Another thing is I don't wanna order off internet because I want it right here right now! But if you think I can truly get an awesome deal that would blow away anything I can buy at the store I'll do it but I'd like to support my local business.

    Oh yeah also changed earlier post so I don't look totally stupid, meant to say compaq is sometimes proprietary(not embeding things on motherboard like I said before). Don't know if mine is or not but I checked and can't tell if my cables are connected or not. It looks like there's a total of 3 wires connecting to motherboard in 3 spots, and 2 wires connecting to a card. Is it prioritzed like some compaqs? I have pics if anyone wants to look at pics and tell me. Then I wouldn't have to buy a new case and windows if it's not proprietary. Thanks again for all the help it is much appreciated :)
    Last edited by bio_zombie; 12-29-2004 at 02:44 AM.

  9. #9
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    Default Re: Upgrading compaq 5423US 5000 series

    Quote Originally Posted by bio_zombie
    Sucky thing is I bought comp at best buy and never got a windows xp disc. all i have is a recovery disc. Is there any way to contact microsoft and have an xp disc sent or something? Or will i have to buy xp all over again?
    You will have to buy a new XP CD but see the shop that you buy your new mainboard and CPU from as they should be able to offer you XP OEM which comes at a much lower price then the retail versions.

  10. #10
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    Default Re: Upgrading compaq 5423US 5000 series

    just talked to microsoft and my disc that just says recovery disc on it has windows xp on it so I won't have to buy xp again! WOOOOOOOOOT!!!!!!

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