Connecting a CD drive. We connect the DVD drive to the motherboard and power supply of the computer. Connecting CD-ROM using IDE
Despite the enormous popularity of flash drives, optical discs still in use. Therefore, motherboard manufacturers still provide support for CD/DVD drives. Today we want to tell you how to connect them to system board.
How to connect a floppy drive
Drive connection optical disks is done in the following way.
- Disconnect the computer, and therefore the motherboard, from the electrical outlet.
- Remove both side covers system unit to access motherboard.
- As a rule, before connecting to the motherboard, the drive will need to be installed in the appropriate compartment in the system unit. Its approximate location is shown in the image below.
Install the drive with the tray facing outwards and secure it with screws or a latch (depending on the system unit).
- Next, the most important point is the connection to the board. In the article about motherboard connectors, we briefly touched on the main ports for connecting memory devices. These are IDE (outdated, but still in use) and SATA (the most modern and widespread). To determine what type of drive you have, look at the connection cord. This is what a SATA cable looks like:
And here it is for IDE:
By the way, floppy disk drives (magnetic diskettes) are connected only via the IDE port.
- Connect the drive to the corresponding connector on the board. In the case of SATA it looks like this:
In the case of IDE - like this:
Then you should connect the power cable to the power supply. In a SATA connector this is a wider part of the common cord, in an IDE connector it is a separate block of wires.
- Check that you have connected the drive correctly, then replace the system unit covers and turn on the computer.
- Most likely, your drive will not be immediately visible in the system. In order for the OS to recognize it correctly, the drive must be activated in the BIOS. The article below will help you with this.
- Ready - the CD/DVD drive will be completely ready for use.
As you can see, nothing complicated - if necessary, you can repeat the procedure on any other motherboard.
After installing the drive (drive) and turning on the computer, the operating Windows system 98/ME/2000/XP will detect Plug and Play devices and install the necessary software. Otherwise, you will have to install all the required drivers yourself.
CD and DVD-ROM drives with an IDE or SCSI interface are installed in the usual way. And decoder cards, sometimes needed to play MPEG-2 video, are inserted into a PCI slot and require the appropriate software.
Regardless of the type of drive you are connecting to (built-in or external), you must check the IDE or SCSI adapter for the drive before installation. Most drives connect to just such an adapter. It must be installed on the system and must not conflict with other devices.
Most computers have an IDE adapter integrated into the motherboard. And when using a SCSI drive, you need to install the SCSI adapter into a free slot on the system board and configure it, i.e. define the following parameters:
If you are running Windows 98-XP and are using Plug and Play devices, their settings will be configured automatically.
The configuration of a new drive is the key to its proper operation. Inspect the drive and find all jumpers and connectors. For a drive with an IDE interface, you can set the jumpers to the following positions:
If you install the drive on a secondary EIDE interface, its jumpers will be set correctly. Check the documentation that came with your CD-ROM drive.
When using a CD or DVD-ROM drive as a secondary device, check that the jumper on the drive is installed correctly and the cable cable is connected to the system board. In most cases, the drive you install will be assigned the next available drive letter.
If possible, do not connect a CD or DVD-ROM drive and HDD to one IDE channel. This will cause both devices to slow down. If your computer has a free secondary IDE channel, connect a CD or DVD-ROM drive to it and leave the hard drive on the primary.
A SCSI drive is a little easier to configure because it only needs to be set to a SCSI device identification number (SCSI ID). Default boot disk ID number 0 is assigned, while most adapters are assigned ID number 7. Make sure the drive is set to a different ID number that is not currently being used by another SCSI peripheral.
Connecting an external SCSI drive
Carefully unpack the device. Typically, the kit includes a CD or DVD-ROM drive and a cable for connecting to a SCSI adapter. This is the minimum required to connect and operate the device. You may also find a CD case, an instruction manual for the adapter, and a couple of demo CDs. SCSI devices almost always come without a SCSI adapter. Because each SCSI adapter supports up to seven devices (Ultra2 SCSI supports up to 15 devices), you don't have to buy a separate adapter card for each device. Some motherboards have an integrated SCSI adapter, but most likely you will still need to purchase a separate SCSI adapter card.
Inspect your workplace and estimate (taking into account the length of the connecting cable) where the drive can be installed. Once you have found a suitable location, connect the power cable to the drive (usually the connector is located on the back of the computer). Naturally, there should be a free power socket nearby, or better yet, a free socket in the power filter (stabilizer, unit uninterruptible power supply and so on.).
Connect one end of the connecting cable to the drive connector, and the other to the connector installed on the adapter board. There are two connectors on the back of most portable CD-ROM drives, and you can use either one to connect to your computer. Secure the cable connectors using locking clips, if available. Some newer 16-bit controllers use special, compact connectors to make connections easier.
There should be a SCSI device identification (SCSI ID) switch on the back of the portable drive. Typically, adapters are assigned a default identification number of 7. Check to see if the drive is set to something else, such as 6, 5, or 4. Of course, you should not set a value that is already in use for another card or any SCSI peripheral .
Installing the built-in CD-ROM drive
Unpack the built-in device kit. It should include:
Sometimes the device comes with a double extension cord for connecting power, consisting of three interconnected pieces of cable with connectors at the ends, a container for a CD, and a user manual. Make sure the computer is turned off and the cover is removed. Before installing a SCSI card into the expansion slot, connect a ribbon cable to it.
Both ends of the flat cable must be the same. There is a red stripe along the edge of the cable that corresponds to the conductor and pin of the connector numbered 1. Sometimes, if you are lucky, you may come across a cable connector with cutouts or keys that prevent you from connecting it incorrectly. If the connectors are ordinary, then you need to connect them, guided by the first contact mark on the cable.
Along the edge of the SCSI adapter board there are 50 yellow pin contacts - the board connector. Next to the contacts on the board are their numbers, or at least the designations of the first and last contacts. Rotate the ribbon cable so that the colored mark lines up with the first pin, and then carefully slide the connector onto the pins.
Insert the card into the connector, ignoring the free end of the ribbon cable.
Select a bay on the front of your computer to install the drive. Access to it must be free.
Remove the drive bay cover. If the side walls of the drive have holes for mounting screws, and the drive itself fits tightly into the bay, then additional guides are not needed. If the device is smaller than the bay, screw the guides to the sides of the bay and place the device back into the bay. Secure it with four screws - two on each side. If the holes in the guides do not immediately coincide with the four holes in the compartment, you will have to make do with attaching two screws - one on each side. Since you will be inserting and removing CDs for many years, you need to approach the mounting of the drive with the utmost responsibility. Locate the labeled side of the ribbon cable and align it with the first pin of the drive connector, which can be identified by the marking on the connector itself or by the picture in the owner's manual.
On the back of the drive there is a 4-pin power connector. Inside the system unit, power is supplied to various components, such as disk drives or a hard drive, through a cable consisting of intertwined yellow and red wires. If one of the connectors of such a cable is free, then connect it to a CD or DVD-ROM drive. If there is no free connector, you will have to use a double extension cord.
Disconnect the power cable from the drive and connect the dual to it. Connect one end to the CD or DVD-ROM drive, and the other to the drive.
It is better to connect the double extension cable to the drive, since hard disks usually consume quite a lot of power and are more demanding on the quality of the supply voltage. If there is no way out (for example, the length of the double is not enough), then “split” the cable connector that has not yet been subjected to this procedure.
Take your time to close the computer lid. First make sure the device is working. Now you can turn on the computer, but in order for the drive to work, you need to install driver programs.
SCSI Device Chain
Let us recall that one of the main advantages of using a SCSI controller is the ability to daisy chain connect several peripheral devices. At the same time, the number of free connectors in the computer increases and there is no need for strict accounting IRQ interrupts, DMA channels and I/O addresses.
The chain can include scanners, tape drives, and other SCSI devices. But at the same time, you need to remember about the limitations, the most important of which is the load on the chain of SCSI devices.
External SCSI devices only.
Let's assume you installed a CD-ROM drive and connected a magnetic tape drive to the second connector on its rear wall. The first device in this chain is the adapter itself. On almost all SCSI boards you can find a group of three socket-mounted elements in long, reddish ceramic housings. These are sets of load resistors for the board.
In our case, the cable coming from the adapter board is connected to the CD-ROM drive, and the cable from the CD-ROM is connected to the magnetic tape drive. Therefore, the second set of load resistors must be installed on it. Most external devices usually use SCSI plugs for load - special devices that are connected to an unused connector of the SCSI device. They come in two types: plugs and through loads. The plugs are inserted into the free connector and completely cover it. The pass-through loads look like plugs, but have two connectors, one of which plugs into a connector on the back of the device, and the second of which can be connected to a SCSI interface cable. Such a load may be necessary if the device has only one SCSI connector.
Onboard SCSI devices only.
For this case, the rule is true: identification numbers for all devices must be unique, and in the first and latest devices Load resistors must be installed. However, keep in mind that many embedded devices have pullup resistor sets installed in the same way as those on the adapter board. For example, if a magnetic tape drive is the last one in the chain, then its printed circuit board Load resistors must be installed. And if CD-ROM drive connected in the middle of the chain, then the load resistors from its board must be removed. The resistors are left on the SCSI adapter board, since it is at the end of the chain.
Most embedded SCSI device cards have one to three pull-up resistors or DIP switches. Their location is usually indicated in the operating instructions.
Built-in and external SCSI devices.
When simultaneously connecting built-in and external devices, you must also adhere to the rules outlined above. The SCSI adapter itself is assigned number 7, and, what is especially important, load resistors are removed from it, but not from drives.
The adapter board, like any other board, must be handled with care. First of all, remove any electrostatic charge from yourself.
Replacing the drive is necessary for users who have not yet been able to completely switch to using USB ports and flash drives.
The optical drive replacement process described below is suitable for both DVD and obsolete CD drives. In the latter case, I recommend taking the opportunity and purchasing a high-speed DVD-class optical drive. At the same time, replacement does not require colossal investments; DVD drives, in our time, have a low price. Remember that with active use, the new drive will fail just as quickly as the previous one, so you shouldn’t buy an expensive one.
First of all, you need to determine what type of interface your PC motherboard has. Drives with SATA and IDE interfaces are sold in stores. Nowadays, you can use any of the presented interfaces. In order for the replacement to be successful, you will need to disassemble the system unit. This way you will know what type of connection your drive uses. By the way, some motherboards allow you to connect a drive via SATA and IDE. However, such boards are rare, since today only SATA remains in fashion.
Drive installation
- first, you should get rid of the old drive;
- disconnect the computer from power;
- disconnect the cables connected to the back of the system unit;
- the drive, in most cases, is fixed in the upper area of the system unit;
- disconnect the cables and unscrew the screws.
- Replacement should be done carefully, try not to damage adjacent elements with a screwdriver. Modern drives are sometimes attached to the housing using latches. If you press all the latches at the same time, you will release the drive chassis.
- The optical drive slides out from the front panel, not from the inside!.
If the new drive is equipped with an IDE interface, set the jumper on its case to the Slave position.
If your drive came with hard drive, most likely they are connected by one cable; in such cases, there is no need to change anything.
Replacement is carried out with a set of screwdrivers and special screws. Carefully insert the new drive from the front and secure with screws. Install the system unit cover and connect all peripherals to the computer. After you turn on your computer, the system will automatically recognize and prepare your new device.
In My Computer you will see a new icon shaped like a DVD drive. This completes the replacement of the drive.
Replacing a drive with a SATA interface Replacing a SATA drive is done in the same way. The only difference is the absence of jumpers.
You can see how to change the drive correctly in the video below. Good luck!
You can see how to properly connect an optical drive to the motherboard in the video below. Attention! The video below shows how to connect the hard drive to the motherboard, but the connection hard drive It’s no different from connecting an optical drive!
Attention! The video above only discusses connecting the drive to the motherboard! You also need to connect it to power from the power supply. You can find out how to do this
Many users are faced with the problem of purchasing new drives, be it external hard drives or optical drives. It would seem that I connected them and that was the end of it. But for some reason the system categorically refuses to recognize them automatically. What to do? Here knowledge of how to enable any type of disk drive in the BIOS will come to the rescue. In most cases this is the most relevant solution.
BIOS does not see the drive: what should you do initially?
Although it is customary to write about the problems of why this or that proposed solution does not work at the end of the topic, it is better to immediately see what problems may appear initially.
As many experts believe, the very problem that the newly connected drive is not displayed in the devices section is that it is not supplied with power or there is simply not enough voltage. Therefore, you should check these parameters initially.
Rules for connecting any drives
On the other hand, the problem may also be incorrect connection floppy drive As a rule, in most computer systems The Master/Slave connection rule applies.
In this case, the cable connector, designated Master, is connected to the main hard drive, and the Slave is connected to any other. In the same way, you cannot connect the Master to the Slave connector and vice versa. At best, you can only achieve that the drive is detected, but loading operating system will become impossible.
How to enable optical drive in BIOS
So, first, let's look at optical drives. The simplest solution to the question of how to enable a disk drive in the BIOS is to go into the BIOS using a standard key or key combination (usually Del, F2, F12, Esc, their combinations or dedicated keys on laptop panels) and find there relevant section.
Depending on the BIOS version and manufacturer, this may be home page(Main), section standard setting(Standard CMOS Setup), advanced settings menu (Advanced or Advanced BIOS Features), etc. Here you should make sure that the drive is in the list, call up the menu by pressing the Enter key on it, and then set the value to Enabled.
If for some reason the user does not find his drive in the list, it is worth turning to the boot section (Boot Sequence, Boot Setup or simply Boot), where in the boot devices you can scroll through the available devices (for example, use the primary boot device 1-st Boot Device). This is usually done using the PageUp and PageDown keys. If the device is detected, then everything is in order and the user simply did not find it.
How to turn on an external hard drive?
Now let's see how to open the drive in the BIOS settings in the form of a connected external hard drive. There are subtleties here - it all depends on what standard it has.
So, to begin with, as usual, we enter the settings of the primary I/O system, after which we look for the tab corresponding to the drive parameters. Now you need to be very careful. Depending on the type of drive, you should find the lines either SATA, IDE, or USB. As a rule, if the connection is made correctly, at least one of them will display this device, even if you don't know its standard. Next, we look at what is opposite the drive. If the Disabled parameter is set there, go to the additional menu and change it to Enabled.
Do not forget that without saving the changes the drive will not work. We use the appropriate BIOS commands. In the standard version, in order not to rummage through sections of the main menu, just press the F10 key, which corresponds to the Save & Exit Setup command, that is, save and exit the settings. After this, a confirmation window will appear with the choice of using the keys (Y - yes, N - no). Press Y and wait for the system to reboot.
Priority start of system boot
How to open the drive in BIOS is already clear. Let's look at one more important point. Let's say you need to change the boot order and install an optical drive or external hard drive as the first device. This approach can be used when installing a system, troubleshooting problems, or simply to boot the OS from an external HDD.
As is already clear, we go to the boot section and install the required drive (disk drive) as the first boot device, and then save the changes.
Instead of a total
As can be seen from all of the above, the problem of how to enable any type of disk drive in the BIOS can be solved quite simply. However, this technique may sometimes require additional steps. So, for example, in some cases you need to check the device in the corresponding manager, which can be called from the “Control Panel” or by command devmgmt.msc from the “Run” console. Perhaps it will need to be turned on (enabled) here. For some non-standard devices that are not automatically detected by the system, you may need to install the hardware manufacturer's native driver. However, it is also worth paying attention to the physical condition of the drive or hard drive. If the microcontroller fails, there is nothing you can do - no matter how hard you try, the device will not work.
I recently received a question by mail:
Hello Maxim. Your subscriber writes to you with a proposal - a request. Tell us how to properly connect a 2nd hard drive and 2 DVD writers. I think this is of interest to many ordinary PC users.
The fact is that it is impossible to describe all connection methods and options in one note, due to the variety of connection interfaces and their combinations on motherboards from different manufacturers.
On the one hand, now only two interfaces are most common connecting hard disks and optical drives: IDE (IDE) And SATA (SATA), and it seems that connecting everything is simple.
On the other hand, motherboard manufacturers have done very a large number of boards with a variety of configurations of these interfaces: ranging from 2/4 IDE and 1 SATA at the moment the SATA interface enters the market before 1 IDE and 6/8 SATA at the moment (hereinafter the number in front of the interface means the maximum possible number of devices that can be connected via the interface to the motherboard).
At the same time, there are motherboards in which simultaneous operation of all interfaces is impossible, i.e. for example, when connecting one drive via SATA switched off 3rd and 4th IDE.
With a gradual transition to the interface SATA everything will become easier - one device - one connector.
This means that each device is connected to its own connector, and the user does not need to additionally configure the device and think about which side of the cable to connect to the motherboard and which to the device. And in case of problems, it is better to tell in detail about the option where the problems arose.
On my home PC (GigaByte GA-P35-DS3L motherboard) there are two SATA hard drives, one SATA DVD-RW and one IDE DVD. I will show how they are connected in the following picture:
The figure shows approximately 1/6 of the motherboard. Green– this is a connector for IDE devices, I have an IDE DVD connected to it. Yellow– these are connectors for SATA devices; I have two SATA hard drives and one SATA DVD-RV connected to them.
The southbridge heatsink and PCI-Express connector retainer are shown for quicker locating of connectors. In most motherboards, the IDE and SATA connectors are located next to the south bridge.
The following pictures show the connection cables IDE devices. These cables have 80 cores and can be designated as "cable IDE-100/133" or "ATA-100/133 cable". There are also options for 40 cores, but they are practically no longer used.
The following figure shows the connection cables SATA devices. Manufacturer GIGABYTE does not simple cables to connect SATA, but “with amenities.”
The first is a metal retainer at both ends of the cable. This lock prevents spontaneous shutdown cable, for example, when you insert or remove a video card from the system unit and accidentally touch the cable.
The second is an angled connector at one end of the cable. This cable is convenient to use for short cases, in cases where the cable needs to be led directly down from the DVD or hard drive. I recommend using these cables.
At the moment, other manufacturers have begun to equip their motherboards with cables with such “options”. You can also try purchasing them separately.
If you purchased new hard disk or DVD with a SATA connector, and your PC is not older than 2 years, then connecting via SATA is very simple.
First– install the device in the housing. DVD - as convenient for you, and hard drive - preferably so that there is a small empty space above and below it for better ventilation.
Second– connect the information connector of the device and a free connector on the motherboard.
Third - connect power to the device. The device may have a new type of power connector (for SATA), it may be an old type (Molex), or there may be both connectors.
The following picture shows, as an example, the back side of the hard drive and the connectors are labeled: SATA power, SATA data, Molex power.
If there is only one connector, then connect it.
With the advent of SATA devices, power supply manufacturers began to equip their units with special power connectors for connecting such devices.
Most new devices are already released without a Molex connector. If there are no connectors for SATA in the power supply of your PC or they are already occupied, then you can use a special power adapter, which is shown in the following picture.
The white connector with 4 pins is the connector Molex. Two black flat connectors are connectors for SATA devices.
If the power connector two, then you need to connect any one of them, but not both at once! I recommend using the power connector for SATA devices.
After this, you can turn on the PC, go into the BIOS and check that the device is visible. If it is not visible, you need to switch all SATA connectors to AUTO mode. Then you need to save the changes in the BIOS and exit. After this you can work with the device
If you are not sure how to connect the device correctly or are having problems connecting, then watch the video tutorial below or take our step-by-step video course "Assembling a computer from A to Z."
The article uses materials from the site www.nix.ru
