But if your PC is very old, it may also offer SATA 2.0 port.

you could use the following methods.

Check the PC Manual

This is the most direct and simplest way.

SATA 2 port and SATA 3 port

If you still have the PC manual in hand, this method is recommended.

Otherwise, try other methods.

Use Software

Some programs like AIDA64, DiskInfo, etc.

SATA 3 HDD speed

can help users get information (including the port throw in) about hard drive.

If your PC doesnt offer both SATA 2.0 port and SATA 3.0 port, this method is very useful.

Search the motherboard model online and you will find a diagram of the motherboard bus.

Disk Benchmark

The mark of the motherboard may be like the following picture.

Im planning on installing a SSD into my laptop by putting it into the laptops optical bay drive.

SATA 3 is twice the speed of SATA 2.

SATA 2 vs SATA 3 SSD speed

I sought out a SATA 3 HDD that lists its real speed.

Therefore, there is no need to upgrade from SATA 2.0 HDD to SATA 3.0 HDD.

SATA 2 vs SATA 3 SSD Speed

Nowadays, more and more people are switching from HDD to SSD.

PCIe to SATA adapter

Is there a big speed difference between SATA 2 SSD and SATA 3 SSD?

Should I upgrade from SATA 2.0 SSD to SATA 3.0 SSD?

In the following contents, I will explain them one by one.

click on Migrate OS to SSD/HDD

If the storage media is SSD, the SATA 2 vs SATA 3 speed gap may be large.

But I dont recommend you to upgrade from SATA 2 SSD to SATA 3 SSD deliberately.

In fact, the IOPS of SATA 2 SSD is not much less than that of SATA 3 SSD.

choose the right method to migrate the system disk

SATA 3 is compatible with SATA 2.

A SATA 3 SSD can be inserted into a SATA 2 socket and vice versa.

Whats the difference between solid-state drive and hard drive?

choose the destination disk

Which one to use for your PC?

Read this post to learn more on SSD VS HDD now.

Should I Upgrade to SATA 6Gb/s PC?

review copy changes

Otherwise, the PC performance will not improve.

To migrate system more easily, I still recommend you to use MiniTool Partition Wizard.

Install MiniTool Partition Wizard and open this software.

click Apply button

Step 2:Choose the right method to migrate the system disk and clickNext.

Step 3:Choose the SATA 3 SSD as the destination disk and then clickNext.

Step 4:Review changes and click theNextbutton.

In this step, it’s possible for you to keep default tweaks.

Step 5:Read a note on how to boot from the destination disk and click theFinishbutton.

Then, click theApplybutton to execute pending operations.

Step 6:Restart the computer and press the BIOS key during the booting process to enter BIOS.

In BIOS, change the boot order to make the SATA 3 SSD is at the first place.

Save and exit BIOS.

Then, the computer will boot from the SATA 3 SSD.

For example:

Here is a post illustrating SATA 2 vs SATA 3.