Laptop Service Center Kochi

Laptop Not Powering On Issues & Resolutions:
There are quite a few different reasons why a laptop can have issues powering on. The most
common would be a faulty DC Jack. Though other things like a faulty GPU, or incorrectly seated
RAM, or a blown motherboard component, a bad battery, a damaged hard drive, a short in the ac
adapter, or even liquid damage can as well… So you see; it is not only the power area that can fail
rendering the laptop unable to power on and stay powered on it can be a variety of different issues,
and it will be up to you to do process of elimination testing to rule out all other possible problems
and pinpoint the exact component causing the issue.
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I will go ahead and give you a few scenarios and then resolve the issues for you by showing
you how to do process of elimination testing.
1) Let’s Say… The laptop in front of you will power on when the power button/switch is pushed,
it will even splash the BIOS screen (the screen showing the Laptops manufacturers logo), then shuts
itself down.

Okay, Now for the process of elimination testing to determine the issue.
You will want to first check all the easiest things that you can, the easiest parts to access get looked at
first.S tart by removing the battery. Plug the AC Adapter in and try powering on… If the same,
continue on…
Next, remove the RAM cover on the underside of the laptop (some RAM slots are also situated under
the keyboard on the top side of the Motherboard; you will determine the location and reseat both
sticks. Then attempt to power back on after reseating the RAM. Reseating the RAM means that you
remove both RAM sticks and place them back into the DIMM slots again to ensure they are in straight
and not at an angle or slightly ajar.
If you are still getting the same failure when powering on, then pull out both sticks of RAM again
and just use one stick, placing it in DIMM 1 first, then checking Power, then trying just DIMM 2, then
trying to power on, then taking the 2nd stick of RAM and doing the same thing… trying DIMM1 then
DIMM2… That will either rule out the RAM as being the issue if nothing changes, or it will correct
the issue, which would also tell you that you have a faulty DIMM slot if the laptop Runs and Powers
on good with 1 missing RAM stick…
N ext you can move on to the Hard Drive by simply removing it. You want to remove/unplug it
from the port and set it aside, then try powering up the laptop because if the hard drive had any issues
with it that were stopping the laptop from powering on, removing the drive should bypass the issue
and allow the laptop to turn on. Liquid damage to the hard drive is a common reason this can
happen… Liquid damage to the internal components can cause power redirection where the contact
pads join and when this occurs, it will tell the motherboard to shut down to prevent further damage. If
the laptop is still not powering on, continue with process of elimination testing…

hard disk data recovery in kochi

Hard Disk Operational Overview
As an illustration, I'll describe here in words how the various components in the disk interoperate
when they receive a request for data. Hopefully this will provide some context for the descriptions
of the components that follow in later sections.www.laptoonz.com

A hard disk uses round, flat disks called platters, coated on both sides with a special media material
designed to store information in the form of magnetic patterns. The platters are mounted by cutting
a hole in the center and stacking them onto a spindle. The platters rotate at high speed, driven by a
special spindle motor connected to the spindle. Special electromagnetic read/write devices called
heads are mounted onto sliders and used to either record information onto the disk or read
information from it. The sliders are mounted onto arms, all of which are mechanically connected
into a single assembly and positioned over the surface of the disk by a device called an actuator. A
logic board controls the activity of the other components and communicates with the rest of the PC.
Each surface of each platter on the disk can hold tens of billions of individual bits of data. These are
organized into larger "chunks" for convenience, and to allow for easier and faster access to
information. Each platter has two heads, one on the top of the platter and one on the bottom, so a
hard disk with three platters (normally) has six surfaces and six total heads. Each platter has its
information recorded in concentric circles called tracks. Each track is further broken down into
smaller pieces called sectors, each of which holds 512 bytes of information.www.laptoonz.com
The entire hard disk must be manufactured to a high degree of precision due to the extreme
miniaturization of the components, and the importance of the hard disk's role in the PC. The main
part of the disk is isolated from outside air to ensure that no contaminants get onto the platters,
which could cause damage to the read/write heads.
Here's an example case showing in brief what happens in the disk each time a piece of information
needs to be read from it. This is a highly simplified example because it ignores factors such as disk
caching, error correction, and many of the other special techniques that systems use today to
increase performance and reliability. For example, sectors are not read individually on most PCs;
they are grouped together into continuous chunks called clusters. A typical job, such as loading a
file into a spreadsheet program, can involve thousands or even millions of individual disk accesses,
and loading a 20 MB file 512 bytes at a time would be rather inefficient: www.laptoonz.com