Time
5 hours 33 minutes
Difficulty
Beginner
CEU/CPE
3

Video Description

Motherboard, RAM, CPU and Power Issues Part 2 Next we cover several performance topics such as unexpected shutdowns, system lockups, BIOS resets, post code beeps, etc. you'll learn about behaviors that trigger adverse events and what troubleshooting steps you can perform to correct them. For example, you'll learn various event triggers that could cause an unexpected shutdown where the computing system is running fine then just stops and shuts down and how identify the cause and troubleshoot to resolved it. Another example is RAM and POST. We discuss what happens when the RAM module fails or it is not seated correctly on the mother board and why that makes a difference in how or if the motherboard recognizes it. And you'll learn what the acronym stands for, what the POST process is and when it occurs, and how you'll be able to determine that it has NOT run successfully.

Video Transcription

00:04
next, we have unexpected shutdowns. Unexpected shutdowns can occur for a variety of reasons. One of them would be power source issues. If we're working on our computer and then all of a sudden it just stops, shuts down, then maybe we can turn it on for a little bit and eventually comes back on or weaken or it shuts down and then tries to come right back up.
00:23
This may be a power source issue.
00:25
There may have been a quick power outage. Or maybe that maybe there was a blown fuse on the on the switch where our computer is plugged into. Or maybe our power grid or the power circuitry in the building that we're in isn't all that great and has a lot of power fluctuations. If our computers plugged directly into a power socket,
00:44
it's a lot more susceptible to these power fluctuations and may suddenly shut down.
00:48
If it drops below what it needs in order to function properly. Or maybe it jumps up in it surges too much power. So we need to make sure that, if possible, we have our computer. If it's a desktop plugged into ups and uninterruptible power supply or if at the very least plugged into a surge protector,
01:07
help protect against some of those surges of electricity, help protect against any power outages
01:11
and help protect against some unexpected shutdowns.
01:14
We also have power supply issues
01:18
if our power supply is going bad. Or maybe we have a power supply connector that's going bad or even just the power supply. Connector isn't quite in, the computer isn't quite plugged in correctly, isn't quite quite connected correctly. Then we may notice some unexpected shutdowns working on our computer and then all of a sudden just shuts down.
01:36
This may be related to the power supply itself in our computer
01:40
s, so we want to take a look at that.
01:42
Then we have our loading, overheating issues overheating. Maybe because of dust that's inside of our computer that we need to blow out. It may be because of poor ventilation. We have a computer stuck inside a cabinet or under a desk that's very cluttered, and it doesn't have proper enough air circulations in order to cool all the components properly.
02:00
Or maybe the thermal paste on our CPU has gone, has gone bad or is starting to dry up and crack, and so are CPU. Can't properly transfer heat
02:09
so the heat sink so that it can go out of the computer. All of these reasons are possible. Possible reasons for overheating. So we need to take a look inside our computer, take a look at what our computer sitting and then possibly move moving around, replace the thermal paste, clean out the dust
02:25
or even check the fans that are on our computer. Sometimes our fans may become obstructed.
02:30
Sometimes the fans may go bad or become unplugged from their proper power connectors. If we don't have a fan, and if we don't have a particular fan running to push air through our computer than it's not gonna, it's not gonna cool properly. We may run into some overheating issues, and we may run into some unexpected shutdowns
02:47
as our computer shuts down when it senses that is overheating
02:52
in order to prevent damage to our computer components.
02:57
And then lastly, we may have a bad, bad memory or a bad memory slot. We may be working on our computer, and we may be interacting fine, but then we run into an issue with our with some memory corruption. We run into an issue with the thought that we play our memory module into is bad.
03:14
So when we're running, when we're trying to troubleshoot our unexpected shutdowns, we do want to check our memory,
03:19
possibly change the memory into some different slots, remove a couple of memory modules and just run with. Just run with some different memory modules and or it's a check and see if possibly the memory is one of these causes of some unexpected shutdowns,
03:34
then we have system lock ups now system lock ups.
03:38
Most people have experienced at least one at least once You've had a knish. You when you were working on a computer and also just locks up, can't do anything well. System lock ups can be because of a couple reasons. One we forgot to put up here on the board would be overheating issues. Overheating can be a potential cause of system lock ups,
03:57
maybe not overheating, to the extent that our computer shutting down,
04:00
but maybe we add, we put in a new processor that runs a bit hotter. We removed are changed around some fan configurations in our computer or it's too dusty or any of the reasons we talked about a little bit earlier when we talked about overheating and our computers getting
04:15
close to the point. Where is overheating? Not quite, but enough that we're starting to get some system lock ups and our computer isn't functioning properly. And as we're running a lot of different applications, it's overheating
04:25
and not able to handle the heat.
04:28
Next, we have not enough RAM CPU or disk space. If we're running a lot of different applications, or if we're running an operating system that is very heavy on our computer and our computer can't handle it, we may not have enough RAM or processing power or disk space, or even and we may not have the correct
04:46
I mean that have a powerful on a motherboard
04:48
in order to support enough RAM or CPU or disk space in order to properly run our applications. So just because we installed more RAM doesn't mean our motherboard or processor or operating system will take it.
05:04
We may want to open up, say, a task manager or process or resource manager,
05:10
and check and see when our system locks up. If there's any spikes in these different processes and see where we if we can narrow down. OK, my CPU is fine. My disk space is fine, but I'm having I'm having a lot of Ray, um, usage spikes, so maybe there's a couple processes I can cut out.
05:28
Maybe there's some places where I can save some memory.
05:30
Or maybe I'm having some CPU spikes and are having a lot of my computer showing a process, a lot of information at once. So I want to check and see where all those processes may be coming from to see while I'm having the system lockups.
05:44
They're also made the issues with malware. Malware. When he gets on our computer, may run a lot of unnecessary and background processes and maybe hogging a lot of resource is or trying to spread, spread or send information back over our network so we'll run into the system, lock up issues. We have malware on our computer, so
06:01
malware isn't the reason for system raka lockups,
06:05
but it is a reason, so we need to be aware of it, and we need to scan for it. We're having system lock ups,
06:13
and then we have applications crashing. If we noticed that we're having a sister lock up when we try to run a particular application or we have system lock ups were trying to perform a certain task in an application, and maybe the application itself is hit a bug or hit. It is certainly starting to crash,
06:29
so we need to check and see If possibly we can uninstall and reinstall that application,
06:32
we may need to troubleshoot the application itself. Or we may need to apply a patch or maybe install a solid new driver for that application so that we don't run into the system. Lock of issues were running it
06:46
Postcode beeps are the beeps that we hear when we start our computer. If we start our computer, normally we may hear well, typically hear one beep just to let us know. Okay, everything's good and it's gonna keep starting. But if we start our computer and we don't get anything, the computer does not successfully start, and we just start hearing beeping sounds. That means that our
07:04
our post
07:05
are
07:08
our system that runs before our computer boots to check if everything is okay. Post stands for power on self test when our computer powers on. It's going to check several different components before it starts the show to make sure. Okay,
07:23
is this in places? My arm, my memory modules and places my CPU reading correctly is my bios correct?
07:28
And it's gonna check all of these different components before it powers on for us. And if it runs into any snags during Post, will receive some beeps.
07:35
Now, post codes can mean many different things, and it can mean different things, depending on the our computer manufacturer. So we need to check with our the manufacturer of our motherboard, the manufacturer of our computer, to see what different beep sequences mean for that computer. That particular computer, because it can bury
07:56
postcode, can mean everything from failed memory modules to video cards. The beeps letting us know that the memory modules are not properly seated. Or maybe they've gone bad. Or maybe the video card has gone bad. Maybe that we have a key stuck on our keyboard, and that key stuck down is causing some post issues
08:13
reset. See Moss may we need to take out our sea moss battery and replace it
08:18
and or maybe receipts a memory modules and
08:22
pushed through some issues that were having their
08:24
and then again, check manufacturer if you are hit, if you're running into a nonstandard postcode, if you're running into it. If you've never experienced the postcode before and you just hear that some beeps on your computer, then you'll need to check with your manufacturer. You'll need to check and see if you can if you can pull up some documentation on that particular computer
08:43
and see what particular beef sequences me.

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Instructed By

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Anthony Harris
Systems Analyst and Administrator at SAIC
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