Outdated DVD drive takes up precious space in the laptop, which can be used usefully - for example, by installing SSD through a special adapter. This upgrade will allow you to increase storage capacity without losing a hard drive slot, speed up system boot time and improve performance. But how to choose the right adapter, avoid installation errors and configure the BIOS? In this article we will look at all the nuances - from compatibility to optimizing the operation of two drives.

Many users fear that replacement CD-ROM on SSD will require complex manipulations with hardware or settings. In fact, the process takes 15–30 minutes if you know the key points: 90% of adapters are suitable for laptops with a drive thickness of 12.7 mm, but for ultrabooks (9.5 mm) special slim models are needed. We tested 5 popular adapters and compiled a checklist for error-free installation.

Why change CD-ROM to SSD: pros and cons

The main advantage of the replacement is additional high-speed storage without losing the main HDD/SSD. But there are other advantages:

  • 🚀 System acceleration: SSD in slot SATA III works 5–10 times faster HDD (up to 550 MB/s versus 80–120 MB/s).
  • 💾 Doubling the volume: you can install a second drive (for example, 1 TB SSD + 500 GB HDD).
  • 🔧 Easy installation: There is no need to completely disassemble the laptop - just remove the bottom cover or access to the drive.
  • 💰 Savings: cheaper than buying SSD large capacity for replacing the main disk.

However, there are also nuances:

  • ⚠️ Thickness limit: in ultrabooks (for example, Dell XPS or MacBook Pro) the drive is thinner - adapters are needed slim (9.5 mm).
  • ⚠️ SATA speed: if the laptop only supports SATA II, the performance gain will be lower (up to 300 MB/s).
  • ⚠️ No optical drive: if you need DVD-ROM To work with disks, you will have to use an external drive.
⚠️ Attention: In laptops with M.2 NVMe as the main disk replacement CD-ROM on SATA SSD may not provide a speed increase - check the specifications of your model.
📊 How do you use a DVD drive in a laptop?
  • Often (movies, games, software)
  • Sometimes (archive discs)
  • Never, it's empty
  • Already replaced with SSD

Types of adapters: which one to choose for your laptop

All adapters are divided into two types according to connection interface:

  1. SATA → SATA (most common): Suitable for most laptops. The adapter has a connector SATA to connect to the motherboard (where there was DVD-ROM) and slot for 2.5" SSD.
  2. SATA → mSATA/M.2 (less often): used if you want to install a form factor drive mSATA or M.2 SATA (not to be confused with NVMe!).

Key parameters when choosing:

Parameter Description Recommendation
Thickness Standard drive - 12.7 mm, slim - 9.5 mm Measure your drive or check your laptop model
Interface SATA II (3 Gbit/s) or SATA III (6 Gbps) Choose SATA III for maximum speed
Material Plastic or metal Metal body dissipates heat better
Additional features Operation indicator, mount for SSD Useful, but not critical

Popular adapter models:

  • 🔹 KingSpec 12.7mm — universal version with a metal case and support SATA III.
  • 🔹 Sabrent 9.5 mm - for ultrabooks, compatible with MacBook Pro (2012–2015).
  • 🔹 ORICO 2139S3 — with activity indicator and mount for SSD.
  • 🔹 Inateck FD2002 - supports UASP to speed up data transfer.
⚠️ Attention: In laptops Lenovo ThinkPad (For example, T430/T440) may need to be disabled Optical Drive Bay in BIOS, otherwise SSD will not be determined.
How to check the thickness of the drive without disassembling?

Open "Device Manager" (Win + X → Device Manager), find the DVD drive in the "DVD and CD-ROM drives" section. Copy the drive model and search for its characteristics on Google. For example, for HL-DT-ST DVDRAM GU70N The thickness is indicated in the specifications on the manufacturer's website.

Step-by-step instructions: how to install an SSD instead of a CD-ROM

Before starting work, prepare:

Unplug the laptop and remove the battery (if removable)

Download drivers for the new SSD (if required)

Prepare a screwdriver (usually Phillips PH0 or PH1)

Create a backup copy of your data (in case of errors)

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Step 1: Removing the DVD Drive

In most laptops, the drive is secured with 1-2 screws on the bottom cover. Algorithm:

  1. Turn the laptop over and find the cover with the icon DVD or inscription Optical Drive.
  2. Unscrew the screw(s) and gently pull the drive towards you - it should come out of the connector.
  3. If the drive cannot be removed, check for hidden latches (for example, in HP Pavilion you need to press the latch on the right).

Step 2. Installing the SSD into the adapter

Disassemble the adapter (usually it consists of two parts: the body and the slide). Attach SSD to the slide with screws (included) and insert into the housing. Please note:

  • 🔧 Connector position: SATA-connector on SSD should “look” towards the adapter hole.
  • 🔧 Fixation: Some models require a thermal pad to be glued for better cooling.

Step 3. Connecting the adapter to the laptop

Insert the adapter with SSD into slot instead DVD drive and secure with a screw. Make sure the connector SATA fits tightly into the socket on the motherboard. Turn on the laptop and check if the new disk is detected in BIOS or Device Manager.

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If the SSD is not visible in the BIOS, try resetting the settings (Load Default Settings) or updating the motherboard firmware. In laptops ASUS sometimes turning it off helps Secure Boot.

Setting up BIOS and installing OS on a new SSD

After physical installation, you need to configure the boot and, if necessary, migrate the system. Options:

  • 🖥️ Clean OS installation: optimal if SSD new and you want a "fresh" system.
  • 🔄 Disk cloning: suitable if you need to save all data and settings from HDD.
  • 💾 Using as an additional disk: for storing files (for example, for games or a media library).

BIOS setup:

  1. Go to the BIOS (usually the F2, Del or Esc when loading).
  2. Check that SSD displayed in the section Boot or Storage.
  3. If you plan to install the OS on a new disk, make it first in boot order (Boot Priority).
  4. For laptops with UEFI may need to be disabled CSM (Compatibility Support Module).

System cloning (if necessary):

Use programs like Macrium Reflect, Clonezilla or EaseUS Todo Backup. Algorithm:

  1. Connect SSD through USB adapter (if not already installed on your laptop).
  2. Launch the program and select the disk cloning option.
  3. Specify the source disk (HDD) and target (SSD).
  4. Set partition alignment (select 4K Alignment for SSD).
  5. Wait for the process to complete and reboot.
⚠️ Attention: When cloning to SSD smaller volume than HDD, first reduce the size of the partition on the source disk (for example, through Disk management on Windows).

Compatible with popular laptop models

Not all laptops support replacement CD-ROM on SSD "out of the box". Below are proven models and possible nuances:

Brand and model Drive thickness Compatibility Notes
Lenovo ThinkPad T420–T480 12.7 mm Yes Need to disable Optical Drive in BIOS
HP EliteBook 840/850 G3–G5 9.5 mm Yes (requires slim adapter) In some models the drive is soldered - replacement is not possible
Dell Latitude E6430/E6540 12.7 mm Yes Supports UASP to speed up SSD
Acer Aspire E5-575 12.7 mm Yes BIOS update may be required
MacBook Pro (2012–2015) 9.5 mm Yes (with adapter Sabrent) B macOS The disk needs to be formatted to APFS

To check the compatibility of your model:

  1. Find the exact laptop model (on the sticker below or in msinfo32).
  2. Check if there is an option in BIOS AHCI Mode (must be enabled for SSD).
  3. Make sure the slot CD-ROM connected via SATA, not USB (found in some 2-in-1 laptops).
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In laptops with Intel Optane (For example, Dell XPS 13) Replacing a CD-ROM with an SSD may conflict with caching. In this case, disable Optane in BIOS or use SSD for data storage only.

Common mistakes and how to avoid them

Even with proper installation, problems may arise. Let's consider some cases and solutions:

  • 🔴 SSD is not detected in BIOS:
    • Check the tightness of the connector SATA.
    • Update your BIOS to the latest version.
    • Try another one SATA cable (in some laptops it is removable).
  • 🔴 The system does not boot from the new SSD:
    • Make sure the drive is formatted in GPT (for UEFI) or MBR (for Legacy).
    • Check the boot order in BIOS.
    • Reinstall the bootloader (for example, via bootrec /fixmbr on the Windows command line).
  • 🔴 SSD overheats or slows down:
    • Use a metal adapter for better heat dissipation.
    • Update the firmware SSD (via the manufacturer's utility, for example, Samsung Magician).
    • Disable defragmentation for SSD on Windows.

If after installation SSD The laptop began to discharge faster, check:

  • 🔋 Power plan settings (choose "Balanced" instead of "High Performance").
  • 🔋 Is the mode enabled AHCI in BIOS (mode IDE increases consumption).
  • 🔋 Disk temperature (use HWiNFO - if above 60°C, additional ventilation is needed).

Optimizing SSD operation in the CD-ROM slot

To make sure your new drive works as efficiently as possible:

  1. Turn on TRIM: On Windows, open a command prompt as an administrator and run: 
    fsutil behavior set disabledeletenotify 0

    To check the status:

    fsutil behavior query disabledeletenotify
  2. Disable indexing: right click on disk → Properties → uncheck Allow content to be indexed....
  3. Set up the swap file: if you have 8+ GB RAM, disable it for SSD or transfer to HDD.
  4. Update the firmware: use official utilities from the manufacturer (Samsung Magician, Crucial Storage Executive).

For laptops with two drives (HDD + SSD):

  • 📁 Place the OS and programs on SSD: This will speed up the loading and operation of the software.
  • 🎮 Leave games and media library on HDD: They do not require high reading speed.
  • 🔄 Set up Symbolic Links: move user folders (Documents, Downloads) on HDD, but leave them "visible" to the system on SSD.
mklink /J "C:\Users\ИмяПользователя\Документы" "D:\Документы"

Where D:\ — your HDD.-->

FAQ: answers to frequently asked questions

Can I install an NVMe SSD instead of a CD-ROM?

No, slot adapters CD-ROM only support SATA SSD (or mSATA in rare cases). For NVMe need a slot M.2 on the motherboard. However, in some laptops (for example, Dell Precision) there are adapters M.2 → SATA, but they work at speed SATA III (up to 550 MB/s), not PCIe (2000+ MB/s).

Will an SSD in a CD-ROM slot work on an old laptop (2010–2012)?

Yes, but with reservations:

  • If the laptop supports SATA II, speed SSD will be limited to ~300 MB/s.
  • In some models (for example, Sony VAIO) there may not be enough power for SSD - external one will be required USB adapter for food.
  • Check if there is an option in BIOS AHCI (unless IDE, SSD will run slower).
How to transfer a system from HDD to SSD without reinstallation?

Use cloning programs:

  1. Macrium Reflect Free: supports GPT/MBR, there is Russian language.
  2. Clonezilla: free, but more difficult to use (requires knowledge of commands).
  3. Samsung Data Migration: disk optimized Samsung, automatically aligns sections.

Important: Before cloning, reduce the partition size by HDD up to volume SSD (for example, via Disk management → Shrink Volume).

Is it possible to use an adapter to install a HDD instead of a CD-ROM?

Yes, but it's less efficient:

  • 🐢 HDD in slot CD-ROM will work slower due to limitations SATA- drive interface (often SATA II).
  • 🔥 Possible overheating - HDD gets hotter SSD, and the adapter does not always provide good heat dissipation.
  • 🔊 Vibration and noise may occur (as opposed to silent SSD).

If the goal is to increase storage capacity, it is better to install HDD instead of the main disk, and SSD - into slot CD-ROM for the system.

What to do if after installing the SSD the laptop does not turn on?

Possible causes and solutions:

  • 🔌 Power problem: Check whether the adapter fits tightly in the connector. Some laptops (eg. HP ProBook) you need to connect an additional power cable to the adapter.
  • 🔧 BIOS conflict: reset settings (Load Default Settings) or disable Secure Boot.
  • 💥 Short circuit: If the laptop does not respond to the power button, remove the adapter and check for damage.
  • 🔄 Incompatibility: some laptops (eg Acer Aspire One) block loading from devices in the slot CD-ROM. In that case SSD can only be used for data storage.