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How Heat Affects Computers

Computers are electronic devices and just like other gadgets, they are bound to generate heat. A computer has some mechanical components as well which in turn dissipate considerable amount of heat. Mechanical devices like the hard drive, optical drive, and floppy drive get heated up in just a few minutes of their operation. All the other components like processor, mother board, input-output devices, memory cards, graphic cards, BIOS and all the other components consist of millions of transistors and flip flops which either manipulate the electronic signals or store them for some time. Heat is also generated by the oscillating circuitry of the motherboard. The digital pulses control the overall cycle of processing. Theoretically the semiconductors which are used in making these chips and other components change their behavior with change in temperature. If the temperature increases beyond the operational limits then you can face problems like slow performance, frequent lockups, blue screen errors, or complete device failure if not taken care. In this post I will discuss effects of heat on various components of a computer system.

Processor

A processor generates heat and that is the reason why we install heat sinks and a fan on it to maintain its temperature within the operational limits. Processor consists of millions of micro sized transistors made up of semi-conductors. These semi-conductors dissipate heat when current passes from within them. If you have ever opened a computer tower, you must know how hot the processor becomes after just a few minutes of working. It becomes so hot that without proper cooling it can literally burn itself and melt. Over-heated processor causes system lockups, and shutdowns. This is the reason why it is advised to run keep computer systems in a cool work place.

Memory and Graphics Card

Memory is another component which is in use almost all the times but not in an idle situation as during this time memory just holds the current and this does not cause the heat to dissipate. So not much care is required for cooling the memory modules because memory modules never generate too much heat, but a device which gets enough to destroy it without proper cooling is the graphics card. The operating system and applications available these days are very graphical and require lots of graphical processing and thus it makes the card very hot while operation. Graphics cards available these days have processors of their own and it tends to get hot while processing the graphic signals. Some of the graphic cards have their own cooling systems.

Most of the modern motherboards have heat sensors which communicate with the software installed in the operating system and takes necessary measures in keeping system cool. This could be done by either increasing the speed of the fan, or by intimating the user and shutting down the system. These sensors keep the user updated about the mechanical status of the CPU fan so that if it is faulty then it can be replaced before any further damage occurs.

How to Boot From a CD Disk for Boot Failure

Sometimes users may face the disk boot failure error on starting a computer. Once this error message is flashed on the screen by the BIOS there is no other way out to it, and one has to get the problem fixed before the computer can be used.

In this post I will discuss the steps for fixing this problem in the easiest way.

Step 1: Get your operating system’s bootable disk before starting troubleshooting.

Step 2: Turn off the computer and then restart it. Press the relevant key for entering into the setup (BIOS). The key used for entering the set-up varies for different BIOS and computer models. If you are not sure of the key, just read for the same on the first screen which appears after switching on the computer.

Step 3: After entering into the BIOS, look for the option to change the boot sequence. We need to boot the computer from a disk so as to make the CD/DVD drive as the first boot device.

Step 4: Insert the bootable disk of the operating system that you have in the CD/DVD drive. Save and exit the BIOS and then restart the computer.

Step 5: If everything goes fine, your system will now boot from the bootable disk that you have inserted.

Most people generally repair the entire operating system after booting the computer from the operating system disk. Repairing the operating system fixes the problem, but it takes a lot of time and at times it may risk your hard drives data. This error message is displayed because BIOS when searched for the first sector of the hard drive, doesn’t find it there. The first sector of the hard drive is the place for keeping the MBR (Master Boot Record), which in turn saves the other settings like location of the OS partition, files system information etc. If BIOS id not able to read or find the MBR on any hard drive during the boot process, it simply gives the error stating that the hard drive has failed. When we repair the operating system, all the values of the MBR are re-written and thus the problem gets fixed, but we can do the same by just running a few commands. Let us see how to do the same.

Step 6: While booting from the disk, it will ask you to install or repair the operating system. Select ‘Repair’ so that you get further troubleshooting options.

Step 7: Select ‘Recovery Console’ or Command prompt whichever is available depending upon the Windows version.

Step 8: At the command prompt, type the following command ‘FDISK /MBR’ and then on the next line type ‘SYS C:’ and press ‘Enter’. This action will scan the hard drive for its partition and OS configuration, and will re-write the MBR on the first sector. Once this command finishes, you can exit from the prompt, take the disk out and reboot the computer. If needed you might go into the BIOS again for making the changes to boot sequence.

How to Open BIOS in Windows Vista

BIOS, which stands for Basic Input and Output system is the piece of software which resides in a chip on the motherboard. Without BIOS a system cannot start and this is the software which identifies, controls, and maintains a log of all the hardware devices (directly connected to the motherboard) and their settings on your computer. It is the duty of BIOS to check all the connected devices like Hard Drives processor, memory, video card etc for there presence and proper functioning at the time of startup. This is executed in the very beginning of system startup and this passes the control to the operating system after loading the core files of it. There are many settings saved in the BIOS which we might need to change whenever required. You would have noticed the line which asks us to press F1 (or any other Key) to enter system. This is how we enter into BIOS.

Entering into BIOS does not depend upon what operating system you have because BIOS comes way before the operating systems gets loaded into the memory. Even if we do not have any operating system installed on our computer still we can enter in the BIOS and make the changes or know about various settings present in it. On entering the BIOS we get a graphical interface which can only be operated through the keyboard. BIOS does not support mouse enabled interface because Mouse is not a necessary device and your computer will boot and work fine even if you do not have a mouse connected, but yes in that case you should be good with the keyboard shortcuts. Once we are inside any BIOS we can use the Mouse keys to scroll or move through various sections of BIOS and the same can be used for entering the new values. BIOS navigation help is always available on the every page of the BIOS which keeps on telling us which key to use to do what. There are three main BIOS manufacturers which makes a computer system BIOS. These three are AMI (American Megatrends, Inc), Award, and Phoenix. The computer manufacturers or the motherboard manufacturing companies use the BIOS made by any of these three to power there computers.

Depending upon the computer and the BIOS you have on your computer the key to enter in it varies. Given below are the key combinations used in some most popular computer systems for opening the BIOS installed in it.

How to Configure BIOS to Dual Boot Windows & Ubuntu

Many computer users in the world require setting up their computer in dual boot order Ubuntu and Windows. I would like to describe how we can set up our computer to boot both in ubuntu and windows. You must have to follow a few steps to achieve this task.

Configuring Dual Boot In Windows And Ubuntu

In the first step you should take the backup of your computer’s data. Though this looks obvious, care is needed because it is very essential that you can protect your data from being lost because it may happen that the drive may become infected during the course of the dual-boot installation. You can use the external hard drive, online storage, USB flash drive, CD’s or DVDs for taking the backup of your hard disk.

Secondly you must have a CD and / or DVD of windows recovery available at the time of installation. There are a number of manufacturers; who are providing the CD or DVD for recovery or reinstallation, but some companies have created the hidden partitions on the hard disk, in which they store the recovery disk information. They also provide a utility that a user can use to burn the data on the CD or DVD drive for recovery or reinstallation. In case you are purchasing a new laptop or desktop for yourself then you should check for the physical recovery or reinstallation CD.  If there is not any CD or DVD or even a recovery drive available with your computer, then you should contact your computer’s manufacturer and ask about the CD which usually comes with the label under Windows as EULA.

Now you can install the Ubuntu after installing Windows. Usually windows operating system is needed to be installed initially. If you have not installed windows operating system on your computer then you should install the Windows Operating system first. If you can create the partition before the installation of Windows operating system then you should leave the area for Ubuntun at the first level of the installation.

If you have already installed Windows operating system on your computer, then the partitions are in need of being shrunk. You can resize the Windows partitions very easily and then you can install ubuntu. You also must download LiveCD image file with (.iso) format. You can download this from their official website and then can burn the image to a CD. Then insert the CD in your computer’s CD Rom and restart the computer.

If your Device boot sequence needs to be changed, then you can change it from the setup. Now continue your installation till you receive the question which asks how you would like to divide the disk. Now you can partition your hard drive using this unique Ubuntu installer.  First choose the initial file option which must be something that appears on the screen and asks about the freed space. Then specify the actual size needed for your new divisions as the exact representation of your computer hard drive and click on ‘forward’. Then finish the Ubuntu installation. Now reboot your computer in order to see the achieved goal. These are simple steps which you can follow for configuring bios to dual boot window and ubuntu.

How to Open BIOS in Windows 7

BIOS (Basic Input/ Output System) is one of the standard firmware that has been installed on every computer with a motherboard. Every computer has a motherboard so the utility exists on literally every computer on the planet. This is perhaps the first of the application or firmware that runs on your system when it is started.

Function of BIOS:

The BIOS of your system keeps a record of all the hardware in  your system and perhaps tells the system about the basic information that it needs to run. The primary hard drive will be communicated to the system, the BIOS is going to communicate active RAM in the system. It also has information about the state of the computer that includes the temperature of the different components of your system as well as the fan speeds.

The BIOS prepares your system to load all the different software that usually includes the operating system through the hard disk drive or any of the other discs that you have inserted in the system.

Entering BIOS:

Entering BIOS is different in different systems as well as different version of Windows that you are using: though one thing is for sure that you can use the BIOS utility while using any of the operating system.

You need to follow the instructions below to enter into BIOS while using Windows 7:

  • If your computer is switched on, restart it. Start your computer if it was off previously using the power button. This is going to boot your system from the very beginning.
  • The very first screen is going to give you the option to enter setup of BIOS so you need to keenly look out for the instruction. “Press ** to enter BIOS” or “Press ** to enter setup” will be displayed. React promptly with the desired keystroke. Usually the F2 key is associated with systems using Dell and F10 for systems using the HP. These manufacturers use these standard keystrokes. Even systems with Intel motherboard use F2 for entering the setup. Asus motherboards want you to press DEL to enter setup. You can always check for the keystroke on the screen that appears just the moment your system starts.
  • The keystroke will get you to the Setup right away or you are going to see a message “Entering setup” and then you will have the GUI of the BIOS setup displayed.
  • You can use the arrow keys, tab key and ENTER to make all the necessary changes within the BIOS setup. The options that are available are related to time check and date check. You can even change the boot order as well as a number of similar hardware related and very basic details.
  • Once you are done with the necessary changes, you can exit the BIOS setup by saving the changes. In case you do not want to save the changes, you can even opt for that.

The system is going to start again from the very beginning with the current changes effective and your system is going to move on to load your Windows 7 afterwards with the new settings in position.

How can I tell if my BIOS supports BitLocker Drive Encryption?

A complete disk encryption feature designed by Microsoft, the BitLocker Drive Encryption provides full protection to your data by providing an encryption for your important data. Well, if you wish to use this BitLocker Drive encryption system with your Trusted Platform Module (TPM) for securing your computer’s operating system drive, there are certain requirements that you should meet with. Well, most primarily it is extremely essential that your computer includes a well suited BIOS. If in case the BitLocker Drive encryption and the TPM system fail to work together with your BIOS and the TPM security hardware, then you should immediately contact your hardware manufacturer for the related troubleshooting details and its particular configuration.

The BitLocker Drive encryption also helps you by protecting the operating system drive of your computers without a suitable TPM based security hardware. However, in such cases, you being the user should insert the BitLocker start-up key into your computer using a flash drive. But, this should be done before you start your computer. How to activate the Bitlocker without the TPM security? Well, in order to make use of your BitLocker without the TPM security hardware, it is extremely essential that your computer BIOS supports the USB Flash drive processing in its initial startup process.

When you start up this BitLocker Drive encryption settings wizard in your computers operating system drive through the Windows Explorer or the Control Panel, by default the system checks for the most compatible TPM before it follows any step for enabling the BitLocker feature. However, in order to implement this exclusive feature in your computers without the appropriate TPM, you should first modify the current require additional authentication at startup Group Policy setting. Also, you should choose the Allow BitLocker option without selecting the check box for compatible TPM. As a result of this, the BitLocker Drive encryption system will then make use of the key information that is stored in your USB drive for encrypting all the content stored into the particular drive. Once the drive is properly encrypted based on this method, you should then insert your USB key into the computer every time it is started. This will help you to validate that you are authorized to access all the content stored in this protected drive.

However, if you are using the BitLocker Drive encryption on your computer for successfully running the Windows Server 2008 or perhaps the Windows Vista, you should also enable the desired require additional authentication at startup Group Policy setting. This is necessary for configuring the startup methods for all the computers. Also, when you enable the BitLocker for the first time and before the drive is encrypted, the Bitlocker feature setup wizard provides you the chance to check the availability of your USB flash drive in the initial starting process. In case the BIOS does not support the particular functionality, you will not be able to encrypt the desired drive. However, you can follow the other methods for protecting the content in your drive.

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Call Now: +1 833-522-1003
Call Now: +1 833-522-1003