Dell E6440 Laptop: ATA, AHCI or Raid Mode for 240GB Goodram Iridium Pro Hard Drive?

Hello!
I purchased a Dell E6440 laptop and a new 240GB Goodram Iridium Pro hard drive.
Which option should I choose in bios for the hard drive?
-ATA
-AHCI
-Raid on

I also have a question right away, how can I speed up the computer startup?
After Dell's startup screen, a black screen appears for a moment and the sign _ flashes 3 times in the upper left corner.
Is it necessary for something or can it be turned off somehow

For an SSD, definitely AHCI.

carlosg wrote:

Which option should I choose in bios for the hard drive?

Depending on what you want to do on it? ATA is a 16 bit system language. If you want the system to bet, choose AHCI

Okay, I installed it on AHCI. However, I have a bit of a problem. I downloaded the drivers. I started with a Bios update. Then a chipset and ... something like this pops up
"addDllDirectory entry point not found in kernel 32.dll"
What could it be? I found that I would run windows update before installing the drivers.
Do you think it will help, if not what?

carlosg wrote:

"addDllDirectory entry point not found in kernel 32.dll"

In my opinion, some win components are missing, install the Framework or let the update install it and this problem should disappear.

It's definitely a driver problem if you haven't installed anything else yet. And did you download the drivers from DEL?

What system are you installing, from what?

Windows 7 Professional x64. I have some net version on the CD where I have all the versions. Of course, I have an original license for my laptop.
Installing the net framework helped

Added after 11 [minutes]:

I will add that I also have other problems with him. For example, sometimes my loudspeakers shoot me, when I get something loud, or even turn on something that causes a sound. The same thing happens when you turn your laptop on and off. I also have a problem that after installing the drivers from the chipset, the sound of the system startup is choppy. I don't think it's the laptop's fault. Earlier, I also bought a Dell e6440 and had the same problems and gave it back. It is the same with it, and it is from a different Lord. The only difference is higher resolution and better processor. What can this be a fault? Could it be the fault of the system I have on the disc and it is worth downloading the original from the website and trying again?

carlosg wrote:

I have some net version on the CD where I have all the versions.

Instead of downloading the original image from the MS website ...

carlosg wrote:

Could it be the fault of the system I have on the disc and it is worth downloading the original from the website and trying again?

Yes, especially since it includes SP1 and other fixes.

I also had a problem with the installation of the system. By default, the laptop sets itself in Boot Sequence> Boot list option - UEFI options. However, it did not want to catch me at all, the message "No Botable devices found" was popping up. Now, when I try to run the system on it, I also have this message.
Bios also sets me to Raid On by default, but I learned from you that it should be AHCI.
However, how is UEFI with this? Should it be UEFI or Legacy and choose the order?

Change from UEFI to Legacy, set the boot order and go.

What is uefi? Does the fact that this is happening to me mean that there is something defective in the laptop, or is this option simply unavailable to me. Why does the bios set it to its default then?
Raid on is, as far as I know, an option that speeds up two drives, and this model had hybrid drives, and maybe that's why. What else is it worth checking in this bios if it is set up okay?
As for Legacy, what order should it be? I have options that I can uncheck and change the order:
-Diskiette Drive (probably not needed)
-Internal HDD (I understand the hard drive and it doesn't matter if I have ssd?)
-USB Storage
-CD / DVD / CD-RW Drive
-Onboard NOTHING

Added after 13 [minutes]:

By the way, I will ask where can I download the original system? I do not want to use microsoft.
This is Windows 7 Pro OA Dell.
I understand that this is the Professional version and I tried to download it

carlosg wrote:

Internal HDD (understand that hard drive and it doesn't matter if I have ssd?)

So set it first at the top, set the rest as you want, I have USB then CD

carlosg wrote:

Why does the bios set it to its default then?

Check if this is the only thing that changes or if the whole settings can be caused by a 3V battery that supports some BIOS settings

In the sense I meant that when I load the default settings, this is what it chooses, i.e. to the factory state, hence the question, why these options were at the factory

carlosg wrote:

In the sense I meant that when I load the default settings, this is what it chooses, i.e. to the factory state, hence the question, why these options were at the factory

It has no logical basis, it is just at least as important as I think you have the option to change to how you want to use your equipment

So it will be AHCI, and Legacy with the first place HDD. I understand that I can uncheck the floppy disk if I do not have it. I found on the della website how can I download the system, I'm just waiting for the flash drive and I will work

carlosg wrote:

So it will be AHCI, and Legacy with the first place HDD. I understand that I can uncheck the floppy disk if I do not have it. I found on the della website how can I download the system, I'm just waiting for the flash drive and I will work

Yes, I do not do that, but I think this option is for older systems ...

carlosg wrote:

I found on the della website how can I download the system, I'm just waiting for the flash drive and I will work

https://www.microsoft.com/pl-pl/software-download/windows7

sosarek wrote:

https://www.microsoft.com/pl-pl/software-download/windows7

That's why I was looking on Dell's website
https://www.dell.com/support/home/us/en/19/drivers/osiso/recoverytool?lwp=rt

https://www.microsoft.com/pl-pl/download/windows-usb-dvd-download-tool

But this program already makes a botable flash drive itself, so why this link?

Added after 47 [minutes]:

By the way, what could be the reason that the laptop battery runs a bit slower?

carlosg wrote:

By the way, what could be the reason that the laptop battery runs a bit slower?

Performance settings in battery options.

Is it about a power plan?
I have a choice of Balanced, Energy Saving, High Efficiency. This is it?

Set high performance, disable power saving for disk, cards, etc.

carlosg wrote:

Is it about a power plan?
I have a choice of Balanced, Energy Saving, High Efficiency. This is it?

Yes Set high performance and, as Sosarek wrote, turn off battery saver
You can also check in the advanced settings of a given plan how you have set them because they are not always the way you want them

I changed high efficiency. In advanced, the only difference is that the minimum state of the processor on battery power is 5% and 100% connected. What does it mean? Change to 100% also on battery? Where can I turn off this energy saving?

Added after 2 [hours] 32 [minutes]:

by the way, what is the difference between uefi and legacy? which one is better

carlosg wrote:

I changed high efficiency. In advanced, the only difference is that the minimum state of the processor on battery power is 5% and 100% connected. What does it mean? Change to 100% also on battery? Where can I turn off this energy saving?

I have never changed it and I do not know exactly what it means and if you have win7, in advanced you have these saving options for disks, wireless network cards.

carlosg wrote:

by the way, what is the difference between uefi and legacy? which one is better

In my reasoning, Legacy is older software, UEFI is slightly newer software that allows you to use more of your motherboard and your components at startup. And depending on how you use your laptop, for example in win7, the most appropriate option is Legancy, for win8 and higher is the UEFI option.

Why is Legacy the most appropriate for 8 wines?
I downloaded the original version of oem from Dell's website and followed their instructions and installed it on UEFI. Everything flashes as it should

Added after 10 [minutes]:

By the way, I downloaded Dell Support Assist and it downloaded almost all the drivers for me. I also made automatic system updates. I had to look for one driver myself on Dell's website. However, I am wondering whether or not to install all the complete software from the site for this paw

carlosg wrote:

Why is Legacy the most appropriate for 8 wines?
I downloaded the original version of oem from Dell's website and followed their instructions and installed it on UEFI. Everything flashes as it should

For Win7 Legacy, and for UEFI Win8 and above
For example UEFI is for GPT Disk Language which has no restrictions for partitioning the recommended disk for this encoding is 2Tb or higher

carlosg wrote:

By the way, I downloaded Dell Support Assist and it downloaded almost all the drivers for me. I also made automatic system updates. I had to look for one driver myself on Dell's website. However, I am wondering whether or not to install all the complete software from the site for this paw

So I think you did well, not always what you have prepared is good, i.e. the prepared system / driver package may not have "update" improvements

Edit
Article;
Boot to UEFI-Mode or Legacy-Bios-Mode
What is UEFI? How is it different from BIOS

Okay, but I installed it on UEFI according to Dell's instructions for windows 7, does it make sense to change to legacy?