The BIOS (basic input/output system) of an IBM-compatible PC is a ROM which performs the POST (power-on self-test), initializes the peripheral devices, and provides a basic firmware interface.

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32
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6answers
46k views

Why should I choose (or not) AHCI over IDE in my PC's BIOS settings?

I've noticed in the BIOS settings of the newer PCs I own that I can configure the drive controller work either in AHCI (Advanced Host Controller Interface) mode, or else in IDE mode. I'm suspecting ...
4
votes
2answers
96 views
+50

Computer does not boot after changing hdd and reverting back

1) I have an existing HDD in my computer that dual boots linux and windows using the traditional bios way. 2) I then took out the existing HDD and swap in a new HDD to install linux on it with uefi. ...
-1
votes
1answer
12 views

How to access bios with lenovo G710 notebook on windows 7?

I've tried pressing different buttons on startup but still cannot access the BIOS. How can I access it?
3
votes
3answers
96 views

Windows 10 and OEM activation 3.0 (key in BIOS) for Windows 8

Windows 10 is meant to be free of charge for Windows 8 owners in the first year. I have a computer that runs no Windows at all (it runs only Linux). This computer, however, has a Windows 8 key stored ...
1
vote
2answers
9k views

Bootmenu (setup menu /BIOS) for lenovo E431 does not come

I am struggling to get the boot/BIOS menu for my laptop lenovo E431, I tried Esc, F1, F2, F3, F4, F5, F8, F9 F10, F12 and Del, but all failed. As per the lenovo docs: ...
0
votes
2answers
10k views

How to get it in Bios Samsung Series 5 NP530U4CL

I have a Samsung Series 5 NP530U4CL Laptop and I can not get into the BIOS, I have been trying using all function Keys, Tab, Esc, Del and nothing works, can anybody help me? The Model Code is ...
1
vote
0answers
15 views

Unable to enter UEFI with on boot (With F2/F12)

Symtom is somewhat like this. BIOS is broken (?) I can still enter UEFI Setup using efibootmgr -n on Linux, however press F2 according to what shown on the screen does nothing. Same for F12 (that is ...
1
vote
4answers
6k views

Desktop hangs after DELL logo screen

After partitioning a Dell Precision 490 workstation, it did not start up again. The symptoms are as follows: I saw the DELL logo screen with the F2 and F12 text The next screen passes very quicly ...
-1
votes
1answer
19 views

What is “S400CA.BIN” on my ASUS laptop?

I just bought a 2nd-hand laptop (ASUS vivobook) from a guy; there's this S400CA.BIN right under my C drive; it's 6,293,504 bytes, and seems to come with the laptop. The guy said it may have to do with ...
0
votes
0answers
49 views

Asus z87 plus reboot hangs

I've received a new computer with Asus Z87-Plus motherboard and i7 4790 CPU. If I turn on the machine, everything is okay, but whenever I restart it (from Windows 7 x64 or from the BIOS itself) the ...
3
votes
2answers
33 views

BIOS only allows UEFI No Legacy Option

Laptop: Lenova Yoga 2.11 I am running Windows 10 Build 10041. I have bought a new copy of Win 8.1, which I want to clean instal. However, my BIOS has no option to change from UEFI to Legacy so that I ...
0
votes
2answers
25 views

Del Inspiron laptop no longer able to detect SSD

My Dell Inspiron 1545 laptop was working fine when it suddenly broke down. When it boots, it shows the error message: "No hard drive detected, please try to resolve the issue by reseating the drive." ...
0
votes
1answer
3k views

CPU fan turns on for a second and stops, PC does not start at all

I have checked my PSU and it works fine. When I turn on the MOBO, the CPU fan, case fans and the psu fan itself turn on for half a second and then turn off. The PC remains off. The Bios light turns ...
2
votes
4answers
3k views

Windows 7 x64 is not installing driver for Das Keyboard

This is the Professional Model S. No need for drivers as it's plug and play, according to company. Here is what I have done up to now: Windows 7 x64 tries to install drivers but fails. ...
1
vote
3answers
103 views

Change Bios boot order after PXE installation

I'm doing a PXE installation. I success to do it but I have a final problem and I don't know where to search to find this answer. After my installation I would like to switch from my network bios ...
-1
votes
0answers
92 views

BIOS does not manage the 2 * 2Go RAM [closed]

I bought 2 x 2Go DRR2 to upgrade my computer. But when I boot, my BIOS displays only 2Go managed. In my Windows 7 Pro 64 bits, I read 4GO (2GO available). So I look for a solution in web and I found ...
0
votes
0answers
27 views

Revert back from legacy to UEFI boot

I have Lenovo G40-30 which came pre-installed with Windows 8. I changed boot mode from UEFI to legacy mode. Now I can't access the bios by pressing any key F2 or F12. Now the computer starts very ...
-1
votes
0answers
25 views

BIOS not ACPI compliant, on windows 7 installation

I was facing a problem of blank screen with cursor after login in my Lenovo G40-30 laptop which was pre-installed with windows 8. So to resolve it I somehow decided to change it from UEFI boot to ...
1
vote
2answers
1k views

Laptop keyboard does not work in Windows 8.1 but works in BIOS

I have a Toshiba Satellite A300-23J and have been running Windows 8 and later windows 8.1 for some time now. Last night my keyboard stopped working for no possible reason. When computer starts up (I ...
0
votes
1answer
35 views

Aspire One 756 BIOS flashing

I want to flash the BIOS on an ACER AO756. The link provides 2 versions of the BIOS, both .exe files. Which one should I use? I run Ubuntu 12. The battery doesn't charge anymore. I can start the ...
0
votes
0answers
10 views

Auto power on UEFI tablet (Linx 7)

may not be the correct place to post this. www.linx-tablets.com/linx-7.html I need to get my Linx 7 tablet to auto power on when power is applied (when not in connected standby)?. I've asked the ...
8
votes
6answers
12k views

How to enable 4GB in my Windows 7 64 bit?

I have the following machine configuration: Intel Core 2 Duo E6300 1 x 2048 MBytes memory chip 2 x 1024 MBytes memory chip 1 x Radeon HD 4870 Motherboard : Gigabyte 945P-S3 Windows 7 RTM 64-bit In ...
0
votes
2answers
10k views

samsung NP530 laptop cannot enter bios setup

Hi my friend has a samsung NP530U3C and he has changed the bios to CSM only now it stuck on a loop and will not boot up, the options "F2 setup" "F4 recovery" are there but they do nothing.I have a ...
1
vote
2answers
28 views

How does BIOS read from flash storage without installing driver first?

Whenever we plug in a new thumb drive, we get a pop-up saying Installing Device Driver and then after sometime the autorun dialog pops-up. So when installing another OS from bootable flash drive - ...
1
vote
2answers
3k views

Laptop automatically reboots after shutdown

My laptop is a Dell N5110. These days the computer has a problem that after normally shutdown it automatic reboot in midnight. I have tried setting the power manager, system restore to prior time, ...
48
votes
8answers
12k views

Where is the BIOS stored?

From http://en.wikipedia.org/wiki/BIOS: BIOS software is stored on a non-volatile ROM chip on the motherboard. ... In modern computer systems, the BIOS contents are stored on a flash memory chip ...
0
votes
1answer
3k views

How to go to the BIOS setting of Packard Bell ENME69BMP laptop?

I want to setup windows 7/8 in my Packard Bell ENME69BMP laptop newly by an USB and currently it's running on windows 8 . But can't go the BIOS setting to make the pen-drive bootable . I have tried ...
0
votes
2answers
8k views

Toshiba satellite L850 key for BIOS

I cant get in BIOS to my Toshiba laptop. Probably I turned on the fast boot or because of Fn key. How can I get in bios BIOS?
3
votes
1answer
4k views

VT-X option not available in BIOS even if Intel Core supports VT-X

Im trying to speed up an android emulator using VT-X but there is no VT-X options in my BIOS. Even worse, my BIOS is almost empty! There is only the change password, which way to boot, information and ...
1
vote
0answers
36 views

Interesting RAM hardware Issue

I am having an odd issue with my desktop computer. I have 8 GB of installed system memory, (MSI 990FXA-GD80 Mobo and AMD FX-6300 CPU) and occasionally, usually after changing settings in BIOS and ...
0
votes
1answer
2k views

How to enlarge RAID5 array with MegaRAID WebBIOS?

I'm a little confused with RAID5. I created a RAID5 array group from WebBIOS with 6 drives. Then created an XFS partition on this RAID5 drive. How can I enlarge the RAID5 without losing data? In ...
1
vote
2answers
26 views

How to get Toshiba A105-S4344 to boot to USB?

I am fixing up an old computer and have everything ready and just need to install my OS of choice (Kubuntu) on it. Unfortunately when I insert the USB and turn it on it does not start from the USB. ...
0
votes
1answer
205 views

Is It Possible to Change BIOS on a graphics card to EFI?

I'll be using a PC graphics card in my Mac, but I know that there won't be a boot screen because PC graphics cards use BIOS instead of EFI. Is it possible to replace the graphics card's BIOS with EFI ...
1
vote
2answers
3k views

WD 3TB HDD showing as only 746 Gb when installed, but okay via media player

I installed a 3TB hard drive (GPT formatted) in my Astone media player and my PC recognises as 3TB no worries. I then take it out of the media player any install directly to the motherboard via a ...
1
vote
2answers
6k views

Boot issue with ASUS K55A - Black Screen

A fiend asked me to look at a problem on their laptop. Laptop is an ASUS with the model # K55A-HI5103D running Win 8. It started getting an error on boot about having an issue with a PXE utility?? ...
2
votes
0answers
18 views

BIOS hangs when SATA drive is attached, works with hotplug

The American Megatrends BIOS (latest version as of manufacturer) of a Shuttle XPC SH87R6 hangs at the very beginning (not even showing the CPU type) whenever a WD 3.0TB SATA harddisk is attached. It's ...
0
votes
1answer
82 views

Where exactly are Windows 8 product keys stored?

I'm repairing an Acer Aspire V5 571p laptop for my roommates. They bought it off some dude on Kijiji. To make a long and not very interesting story short, I could not access the BIOS, so about an hour ...
10
votes
5answers
19k views

How can I use TrueCrypt under windows 8.1?

I know that TrueCrypt doesn't support windows 8 because some systems have UEFI enabled. It seems that if UEFI is disabled or Windows 8 is installed on an non UEFI system TrueCrypt just works fine in ...
2
votes
0answers
34 views

Wrong total ram ( 8 GB installed, 4 appears and used in total )

I have this motherboard: GA-X38-DQ6 which can hold up to 8 GB of Ram. When I got this computer it had 4 memory sticks, 1 GB each, and everything was fine. Now, I have two sticks, 4 GB memory each: ...
-1
votes
1answer
3k views

Is it possible to overclock an i3-3110m?

Is it possible to overclock an i3-3110m notebook processor? I have searched many forums with Google, but all lead to no answers. I've tried using SetFSB but there are no configurations for my ...
1
vote
1answer
5k views

Use external display from boot on Samsung laptop

I have a Samsung RV511 laptop, and recently my screen broke. I connected an external screen and it works fine, but only after Windows starts. I want to be able to use the external screen right from ...
2
votes
2answers
28k views

Samsung Series 5 BIOS not detecting any bootable devices

so I have a problem with my BIOS, it doesn't detect any bootable devices from the Boot tab. NOTE: I'm gonna refer to keys and tabs that show in my BIOS settings page for ease of explanation. Please ...
0
votes
2answers
2k views

Error code 2503 - Cannot install software on Windows 7 (64Bit)

A short while ago, I had my hard drive die on me and at the same time my 1Tb backup drive! I took it back to the guy I bought the PC from and although the backup drive could not be recovered, he ...
0
votes
2answers
50 views

Why does running Linux eventually cause my ThinkPad T430 to refuse to boot or enter diagnostics?

I have a Thinkpad T430. Every time that I install Linux (Latest CentOS) on it, after a while, the computer refuses to boot, go into bios, or boot / diagnostics menu. I've run Windows on it, and it ...
0
votes
1answer
28 views

Bios Doesn't See HD, But HD Known to be Good

I have an Asus Eee PC 1215B, whose hard drive I replace about 8 months ago after the previous one died. It had a 250GB SATA 3.0 drive which I cloned to a 500GB SATA 6.0 drive. After 8 months of ...
1
vote
2answers
106 views

Remove Fujitsu Lifebook Bios Password on Startup

I Tried to remove the Boot up Bios password in a Fujitsu Lifebook Bios SH530 Model. But it still asking for password on bootup and now may password did not work. Can anybody help me? Here's what I ...
2
votes
3answers
48k views

What does the BIOS setting XHCI Pre-Boot Mode do?

I have a BIOS setting called XHCI Pre-Boot Mode. If I have this enabled USB devices which aren't plugged in at boot are never recognised, if I set it to Disabled then USB devices work normally. The ...
2
votes
1answer
69 views

Dell laptop repeated, rapid beeping after POST, no error message, restart loop

Yesterday my laptop was running okay. I started it up, restarted it again to refresh it from hibernation, then ran Windows Update (just security updates). After it restarted following the updates it ...
0
votes
2answers
56k views

I can’t access the BIOS setup using F2 key on Samsung NP270E5V laptop

My Samsung NP270E5V laptop came with Ubuntu 13.04 installed on it, but I cant boot from a CD/DVD or USB flash drive to install Windows 7. Pressing F2 during boot doesn’t take me to BIOS menu so that I ...
0
votes
1answer
105 views

Samsung SSD is not visible in Bios

I have Dell Inspirion N5110 i7 , and I want to upgrade to SSD and I bought Samsung SSD PM810 2.5" 7mm 256MB SSD drive. Everythis is fine, I cloned my system drive successfully on to it, but I can't ...