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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What does “SATA ESP” (“Set SATA PORT1 to External SATA Port”) do?

I am looking in my Asus motherboard's BIOS setup screen for an option to enable SATA hotplug. I couldn't find such an option, but I did find a set of per-port options labeled “SATA ESP on PORT1” ...
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10 views

Old BIOS motherboard doesn't recognize HDD

I'm trying to start an old M537 motherboard, if I connect an HDD take some seconds trying to detect it and then fails HDD NONE. If I connect a CD-ROM it detect it very fast. I also tried with ...
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14 views

Click Bios 4 fails to load Windows 10

I have a bootable windows 10 usb, and no, it isn't a faulty one. The bios I have is: MSI Click Bios 4 for the Z97S. The hard drive is cleared. I need to know how to load windows onto this system, ...
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11 views

MSI Z97S can't work with WIN 10

I have an MSI Z97S with Click Bios 4 But, however, I need to install Windows 10 on this machine. I do not need to know how to create a bootable usb, I already know how ** All I need to know is how to ...
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1answer
13 views

No keyboard / mouse after Sysprep

I've changed mobo and cpu on a computer. Before change mobo and cpu I've run sysprep.exe. When I start the computer, keyboard and mouse works fine in the bios but when windows is launched, there is a ...
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1answer
14 views

Reset bios password of Asus Eee PC S101

I have an old Asus Eee PC S101 that I forgot the bios password for. Instead of just throwing it away, I'd like to try to rescue it and maybe have it for my newborn son one day. I'm ready to tear this ...
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3answers
37 views

Boot disk not found - can this be a software issue?

I have an Acer Aspire laptop, and I installed a new SSD. It worked with no issues, at which point I installed Windows 8, and started getting boot messages of media test failure, check cable and No ...
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28 views

BIOS forcing windows 8.1, can't boot from USB to install Linux

I purchased this mini-pc, Kaser YF751A-W. The hardware is closed, and I see no screws, so I can't go unplugging drives, or changing any switches/jumpers. The manufacturer's website kasercorp.com ...
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9 views

Take Intel D945GTP motherboard out of manufacturing mode

I have an Intel D945GTP motherboard, when I switch my pc on I get a message saying, "SYSTEM in manufacturing mode". I have a problem with this because I can't save any changes made to the bios. I ...
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18 views

No boot no beep [on hold]

For Some reason my computer doesn't boot/post anymore, even though yesterday it shutdown properly. It turns on, the fans spin and the motherboard lights are lit. But the computer doesn't post and ...
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21 views

Acer Aspire s7-391 BIOS recovery

Model: Acer Aspire S7-391; 256GB SSD/4GB RAM; OS: Windows 10 Before going dead, the laptop used to randomly display 'no bootable device found' warning while turning it on. But usually it booted up ...
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1answer
13 views

Cannot Amend Boot Order

I have a HP DC7800 running Windows 7 SP1 and when I restart I am shown a screen with Attempting Boot from USB device and an error with "no such partition", followed by Entering rescue mode and then ...
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1answer
40 views

Dell Inspiron R15 3521 BIOS doesn't show the option to boot from USB

Secure Boot is disabled and I'm on Legacy Boot right now. When I go to Boot settings there doesn't seem to be any option to boot from USB or even add that as an option. (I have tried two USB 2.0 and ...
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0answers
14 views

acer vn7-591g BIOS password unlock reset

set BIOS password some time ago. When I tried to enter BIOS again yesterday it wouldn't accept my password. I couldn't have typed it wrong because the password is "a". Disassembled it and removed the ...
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1answer
15 views

No boot menu for backbox

I have windows 10 installed on my C: drive which has 202 gb space. When I got my laptop it was mentioned with UEFI. I have a partition of 700 gb for F: drive from which I extracted 20 GB for backbox ...
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24 views

Reset BIOS Password for Laptop

I have an Acer Aspire laptop and i recently updated the BIOS through Windows 7. I did this in an attempt to reset the BIOS password as I no longer remember it. The problem is that it no longer ...
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12 views

Sometimes computer hangs at BIOS screen when booting

Sometimes when I turn on my computer it doesn't start, it gets to the screen that says "press del to enter BIOS menu" and then it hangs. I found turning off the computer and unplugging USB devices ...
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21 views

Can't install Windows 8 in Sony Vaio SVE15129CNS having default UEFI mode shows OPERATING SYSTEM NOT FOUND

I recently installed Win 10 in my sony vaio e series laptop. but now i want to install again win 8 which gives error like OPERATING SYSTEM NOT FOUND in uefi but in lagacy mode it boot but on selecting ...
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0answers
45 views

update bios for Dell 6230 is not happening

I wanted to upgrade to A15 BIOS on my Dell Latitude E6230 and downloaded the installer from the Dell Website. The installer launches correctly and displays the current version, the update versions ...
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0answers
38 views

Dell DOS BIOS update “This program cannot be run in DOS mode”

I am currently attempting to update the BIOS of a Dell Inspiron 1564, I can't do it via Windows because the battery isn't recognized and thus won't allow me to update. I've tried booting in MS-DOS ...
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1answer
21 views

BIOS can not find hard disk in boot priorities

I was installing Linux Kali os 2.0 but have got an error while installing grub, so I was unable to start installed kali os and also second OS, Windows 8.1. Only what was possible was to start live ...
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30 views

Downclock DDR3 1600mhz to 1333mhz GA-P55-USB3

I'm determined to pursue this to it's end before I decide to return the hardware. System Specs: CPU: i5 650 Motherboard: GA-P55-USB3 2x 4GiB DDR3 1600MHz (formerly 2x 2GiB DDR3 1333MHz) The ...
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1answer
41 views

Does “Legacy Support” really disable my HP's OS?

I wanted to try Ubuntu on my "HP Pavilion Sleebook 15" and i looked online how to boot with this model and i discovered that BIOS is accessible using F10 key when PC tries to boot and then i rebooted ...
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22 views

Memory not being properly detected

I purchased a Crucial 4GBx2 kit and recently installed the two sticks. One stick was detected, while the other was not. I tried reseating and moving the stick, however, the stick was still not ...
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0answers
16 views

Setting SATA to RAID causes PC to not POST

I seem to have broken my PC by trying to create a RAID array. I created the array just fine but forgot to load the RAID driver on my system drive which is not part of the array, I set SATA back to ...
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1answer
55 views

Does HP ProBook 4730s have UEFI or BIOS?

Sometimes I read that HP ProBook 4730s has UEFI and other times I hear it only has a BIOS. So which one does it have? As I understand it, UEFI is a replacement for BIOS, not an improvement nor ...
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2answers
18 views

How can I rescue an infected sony vaio bios?

I am trying to rescue a Sony Vaio laptop which I believe has an infected bios. I have autonuked the hard disk and installed a fresh Windows 7 but the keyboard types random combinations of letters and ...
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19 views

Update Intel NUC boot on power setting from Ubuntu Server OS

I have an Intel NUC that is remote and currently booted, running Ubuntu Server. I neglected to set it to boot automatically after power failure when I had physical access. Is there any way to update ...
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0answers
30 views

Bootloaders - Booting an MBR only OS using a UEFI only BIOS

A long time ago, in a computer lab far far away, I stumbled upon a bootloader which dared to cross the boundaries between MBR and EFI. It's name was Clover. Using clover, you could boot any number ...
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22 views

Hard Drive Not Showing Up In The Boot Order

Since I try to install VMware on one of my PC, the HDD is not showing up in the boot order but I can see it in the SATA device list. If I try to install Ubuntu Server or Linux Mint, the both OS can ...
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1answer
30 views

New build boots to bios spash then cycles

I'm building a new computer. See the build list below. It will boot to the BIOS splash screen but then just cycles over and over. I've reset the BIOS and the system is down to the base, using onboard ...
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1answer
39 views

Boot 32bit UEFI from file

I have linux on usb(32bit x86) and two PCs, one an laptop 64x uefi boots fine. one tablet having 64bit processor but 32bit uefi-bios do not boot. The second one has no option for legacy boot, but ...
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1answer
34 views

500GB SSD + 500GB HDD in caddy with bios that detects only 750GB, what would happen?

I just got a new 500GB SSD and caddy. I will be installing the SSD as the main disk for my OS and working files and install the HDD within a caddy in place of the optical drive. I am not exactly sure ...
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1answer
30 views

Building a 4TB raid-1 with WIndows 10

I have two 4TB brand new SHDD built as a Raid-1 array on an (old) nVidia Raid controller. After having upgraded the Bios, the 4TB drives are recognized as such by the Raid Bios, and I can create a ...
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1answer
27 views

HP Compaq Business Desktop dc7600 Small Form Factor Desktop PC - What's new in HP BIOS 786D1 v01.61 updated from 786D1 v01.03

HP Compaq dc7600 Small Form Factor Desktop PC - What's new in HP BIOS 786D1 v01.61 (updating from 786D1 v01.03). Is it worth upgrading? Will this BIOS upgrade expand the range of CPUs I could upgrade ...
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0answers
36 views

Acer ES1-512-C5YW not booting Windows in legacy mode

I am trying to get a bootable usb (Remix OS) to work on my Acer Aspire ES1-512-C5YW but I am encountering a few problems with the BIOS. Windows boots fine in UEFI mode but when I change it to Legacy ...
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1answer
23 views

Boot order not saved lenovo u410

So I am trying to boot a bootable flash drive with windows 10 on it on lenovo U410.I entered the BIOS and changed to legacy with legacy priority but when changed the values of the boot order they just ...
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0answers
14 views

What is the PWM slope in my BIOS?

In the BIOS of my motherboard (Gigabyte Z97X-UD3H) I can set the fan speed to various modes including one where I can set a PWM slope in "some amount per degree". This is what the motherboard's ...
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0answers
9 views

BIOS reset side effects for RAID array

I have a machine that is running microscope, generating TBs of data per week. I want to put it on 10GbE network, but only possible slot to use is GPU slot. Machine is Supermicro, MOBO X9DRi-LN4F. I ...
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0answers
41 views

BIOS - Change order of hard disk device to boot

I did an installtion of a Linux distro onto a USB and it all went fine. I've been using the BIOS settings to choose whether I want to boot the hard disk (with just Windows) and the USB. All seems to ...
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1answer
60 views

How to detect whether a UEFI booted linux machine's video mode is graphics output protocol (GOP) or universal graphics adapter (UGA)?

UEFI firmware appears to support GOP or UGA graphics protocols. GOP is newer and has replaced UGA. On my machine which does not have an integrated graphics adapter (only a discrete graphics adapter ...
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1answer
30 views

Low level formatting of hard drives

Is it possible to alter low level formatting information in hard drives such as sector address markers using input/output communication with the drive? Are there other settings stored inside the drive ...
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0answers
17 views

PC (even BIOS) doesn't load, when SATA SDD HDD is plugged

this morning I was working on PC and needed to restart. However, after restart, PC doesn't load. It gets stucked even before bios (on ASUS logo screen). I can't do anything - load BIOS, boot, nothing. ...
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0answers
21 views

CPU or Graphics card defect?

From time to time my computer dies while in usage. The screen either turns completly white, black or shows thin vertical stripes in two colors. I then have to kill it with the power button. When I ...
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0answers
19 views

Reading BIOS variable contents/location from .bin or .rom

For the past week or so, I've been [slowly] making progress on modding my BIOS (looking to eventually increase minimum RAM allocated to onboard video). I've successfully flashed my BIOS to Insyde ...
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0answers
42 views

PC Doesnt boot past the screen with the flikkering underscore

First of all, i've been searching to find possible solutions on the internet, i tried quite a bunch of them nothing really worked. So where did the problem start? A few days ago i found out my RAM ...
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1answer
40 views

CPU Over voltage error after updating BIOS

I have a problem with my motherboard. I updated the BIOS on my Asus P8P67-M to the latest version(3703) after this when rebooting my computer I was shown a message telling me that there is a CPU Over ...
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0answers
42 views

Laptop BIOS doesn't show USB boot options

When I insert a USB 2.0 drive into my Samsung laptop, the BIOS shows Windows Boot Manager options only, even though the same USB drive is well recognized by my other Samsung laptop. The image shows my ...
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1answer
41 views

Does my laptop have ROM?

I have read that servers have ROM with BIOS. Do the laptops such as MAC and PC have the same mechanism ? I do not see ROM configuration on the "About this mac" thus confused.
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0answers
23 views

Motherboard is not booting operating system after cmos reset and cant access bios

I have built a custom pc, these are the specs: I7 4790k 500w evga psu Gigabyte z97p-d3 motherboard 8gb hyper x 1866mhz ram I am using my 32" finlux tv right now as a monitor since im saving for a gtx ...