Question about HP Pavilion a1220n (A1220NED904AA) PC Desktop

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No connection from cd to board

Not sure i have the correct connections from cd and dvd to the motherboard or to sound card, dom\n't know right place to connect

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It would be helpful if you had some pictures of the back of your CD. There are basically three connections on the back of a CD or DVD. one is the sound cable, which is usually two or three pins, and there is only one way to plug it in. The next cable is data, and that also plugs in one way only. Final cable is power, and that one also goes in one way only.

The problem you may be having is if you have a mismatch between the drive and motherboard. The old standard is IDE/ATA, the new standard is SATA. If the cables are mismatched, you can buy adapters to convert from one standard to the other.

Posted on Jan 26, 2009

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Motherboard diagram

A Computer Motherboard Diagram motherboard-diagram-01.jpg Once you know what you are looking at, you can recognize the components on any motherboard layout. A computer motherboard diagram is very useful for when you need to replace motherboard, do motherboard upgrades, troubleshoot motherboard, or build your own computer.
  1. PCI Slot - This board has 2 PCI slots. These can be used for components such as Ethernet cards, sound cards, and modems.
  2. PCI-E 16x Slot - There are 2 of them on this motherboard diagram, both are blue. These are used for your graphics card. With two of them onboard, you can run 2 graphics cards in SLI. You would only need this if you are a gamer, or working with high end video / graphics editing. These are the 16x speed versions, which are currently the fastest.
  3. PCI-E 1x Slot - Single slot - In the PCIe 1.x generation, each lane (1x) carries 250 MB/s compared to 133 MB/s for the PCI slots. These can be used for expansion cards such as Sound Cards, or Ethernet Cards.
  4. Northbridge - This is the Northbridge for this motherboard. This allows communication between the CPU and the system memory and PCI-E slots.
  5. ATX 12V 2X and 4 Pin Power Connection Power Connection - This is one of two power connections that supply power to the motherboard. This connection will come from your Power Supply.
  6. CPU-Fan Connection - This is where your CPU fan will connect. Using this connection over one from your power supply will allow the motherboard to control the speed of your fan, based on the CPU temperature.
  7. Socket - This is where your CPU will plug in. The orange bracket that is surrounding it is used for high end heat sinks. It helps to support the weight of the heat sink.
  8. Memory Slots - These are the slots for your RAM. Most boards will have 4 slots, but some will only have 2. The color coding you see on the motherboard diagram is used to match up RAM for Dual-Channel. Using them this way will give your memory a speed boost.
  9. ATX Power Connector - This is the second of two power connections. This is the main power connection for the motherboard, and comes from the Power Supply.
  10. IDE Connection - The IDE (Integrated Drive Electronics) is the connection for your hard drive or CD / DVD drive. Most drives today come with SATA connections, so you may not use this.
  11. Southbridge - This is the controller for components such as the PCI slots, onboard audio, and USB connections.
  12. SATA Connections - These are 4 of the 6 SATA connections on the motherboard. These will be used for hard drives, and CD / DVD drives.
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  14. FDD Connection - The FDD is the Floppy Disk controller. If you have a floppy disk drive in your computer, this is where you will hook it up.
  15. External USB Connections - This is where you will plug in external USB connections for your case or USB bracket.
  16. CMOS battery - This is the motherboard's battery. This is used to allow the CMOS to keep its settings.

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  3. Attach your new cables and reattach to motherboard and power supply where you removed the old ones.
  4. Reattach the power cord and cables, but do not close up the computer entirely yet.
  5. Test your new DVD player by placing a disc in the drive and ensuring the green light comes on and you hear it power on. If this happens without a problem, then close up the case. If not, then check to make sure cables are securely fastened in the correct motherboard slots and to the power supply

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1) check if the connections are properly placed. Make sure that the sound card is inserted on its slot correctly.
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I hope this helps you. :)

If you have other questions, just click on the ask button and I'll answer as soon as I can.

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