How AHCI or IDE Modes can affect the Drive Performance?

When you finally decide to address a huge bottleneck in your computer by upgrading to an SSD for your Boot drive. But when you finally get up and running, something seems a little off.

May be your file transfers are slower than you expected, underwhelming SSD performance could be caused by a somewhat obscure setting in your UEFI BIOS.

IDE or PATA and AHCI or SATA Modes

You see, most modern Hard Drives or SSDs can be set to operate in either IDE mode or AHCI mode, but what in the heck does that mean?

Well, there are multiple ways, your system has of talking to drives. IDE (Integrated Drive Electronics) or PATA (Parallel Advanced Technology Attachment) is the standard, that was used for a long time back, when we were all using those Huge Gray Ribbon cables to connect hard drives to motherboards.

Drives with the newer smaller SATA or Serial Advanced Technology Attachment connectors can also utilize a newer standard called AHCI or Advanced Host Controller Interface.

Advantages of AHCI Mode over IDE Mode

AHCI enables cool features like hot swapping. So, you don’t have to turn off your computer, if you want to unplug an external drive from an eSATA port or use that super Hot swap bay in the top of your case.

A less obvious but also important advantage is support for native command queuing, which affects the way that your drives handle multiple requests to fetch data at one time.

On Hard drives using NCQ can mean the drives read and write head doesn’t have to move around as much to get a certain piece of information. Speeding up your access times, but how does AHCI also help speed up SSDs?

Well, although the benefits of NCQ on SSDs are small or negligible for home users, many users do report greatly increased performance. Especially for large file transfer in AHCI mode compared to IDE mode.

Due to AHCI just plain being designed with more modern drives in mind.

Why would you ever want to use IDE Mode?

If AHCI is that better than IDE mod, than why is there IDE mode, why can’t we just get rid of that option?

Well, if you are running an older operating system such as Windows XP or eariler, there is a good chance that it won’t have native AHCI support. Meaning it won’t play nicely with your drives, if your motherboard is set to AHCI mode.

Unless you do some software trickery, when you install the OS. This might also be the case if you are trying to run software from a bootable USB Stick or an Optical Disc.

If you have a boot drive that you have been using in IDE mode, but then switch over to AHCI mode, you might get a boot erroe, forcing you to switch back to IDE Mode.

Though fortunately, if you are using Windows, there is a registry tweak that you can use to fix this more permanently, if you are interested, stay connected, I will write that in my next blog.

Of course AHCI is not the end game for drive protocols and the sexy new one NVM Express is starting to gain popularity, while you won’t be able to use it with your SATA drives.

It is being implemented in high performance PCI Express SSDs and since NVM Express was designed from the ground up for Solid State Storage (SSD), it can enable speeds several times faster than what you would get with AHCI Mode on a standard SATA Interface.

So, you might want to look into those, if you have got some money to burn and milliseconds to count, when you are trying to transfer your files or opening Google Chrome to read the latest and exciting blogs from your Favourite SuratNow.


Oppo F5: Finally a found a change, but yet to see originality

Oppo has finally changed their smartphone look with the new arrival of Oppo F5. Oppo is widely known for their selfie-centric phones. They did not…..

What is the function of Pause/Break button?

Did you ever thought that what does the Pause/Break button do? Is it to use when you are stuck at work and waiting for a…..

Google Pixel 2: All the Rights and Wrongs at one Place.

Google recently announced their new Google Pixel Smartphones. With a more modern design, a larger screen, and battery and an exclusive paint job. What could…..

Should I turn off PC without Shutting Down?

When you consider about turning something off, it is just as simple as pressing switch. You can just flick the switch, rotate the key for…..

How to disable Auto Update in Windows 10?

For some people, Auto update in Windows OS is very annoying. Especially, when you got a limited data connection. So, you have to turn Auto update…..

How To increase maximum file upload size in php or in wordpress?

Sometime, you require files larger than 2 MB to upload on your PHP websites, which it does not let you do by default. Showing it…..

Data Breaching and Hacking Preventions

Recently,  number of cases of getting Credit card or bank account hacked has grown too much. So, probably this is a great time to talk…..

What is the largest possible Size of a Single File?

Kids from 2000s, you may not remember a time before a 120 GB hard drives were the bare minimum, but other of you from 90s…..

File Systems: What is FAT and NTFS? Which one is better?

You probably know someone, who is always miss placing stuff, I do personally. Whether they can not find their keys in the morning, they leave…..

App Review: MoveIt – transfer Media Files Automatically

From the title of the blog, you will think that, what is new in that? But well, there are some features in this you will…..

Status Forever: Android App to get Status for every mood

Are you looking for new Status to put on your Social media account? Whether you are feeling sad or true love, you will get all…..

Vivo Y69: Review and Specifications

The Chinese smartphone manufacturer Vivo always try to give you good and better Camera. Which is boring in a way. You just don’t get any…..

Apple iPhone X: Top 5 Features, Dream Project of Apple

If you have followed Apple at all, you have probably heard the old cliche that it does things better, instead of doing them first. Nowhere…..

How AHCI or IDE Modes can affect the Drive Performance?

When you finally decide to address a huge bottleneck in your computer by upgrading to an SSD for your Boot drive. But when you finally…..

Technical Terms that you don’t have an Idea of being Misused

Using the word Bacteria to refer to a single germ, which should be bacterium instead, mixing up Discrete and discreet and saying my Facebook got…..

How Important System32 Folder is for Windows OS?

Warning! Deleting this file can cause damage to Windows or another Program. Odds are pretty high that you have seen a message like that, if…..

Samsung Galaxy Note 8 First Impression: Do Bigger Things

Last year’s Galaxy Note 7 was perhaps “the most famous Samsung smartphone in history”, for all the wrong reasons. The company kicked off its recovery…..

Top 6 Upcoming Smartphones of 2017

2017 has been an incredibly exciting year, when it comes to smartphone launches. But that doesn’t mean, it will not get even better. So, Let’s…..

Mobile Networks: Evolution from 1G to 4G Explained

Most of us uses smartphone with 3G or 4G mobile networks, well mostly 4G after Jio Storm. But do you ever think what does it…..

Lenovo K8 Note: New Killer Note is ready to Kill the Ordinary

Chinese Mobile manufacturer Lenovo made a great success with their Lenovo K series. Especially with Lenovo K3 Note, Lenovo K6 Power and Lenovo K6 Note……

Top Trending

  • Get more stuff like this
    in your inbox

    Subscribe to our mailing list and get interesting stuff and updates to your email inbox.