my computer won't start it won't boot there's a black screen every time i hit
the power button what can i do to solve this problem now we're going to go through the most
obvious one first which is the most common when i sell a pc i actually get quite a few people
that message me saying there's a black screen it won't start so this problem is easy to fix if it
is this problem and that is first thing you have to do is uh take the little battery out so make
sure the power is disconnected from the pc and uh press the power button a few times just to drain
all the power then i want you to take out this little circular battery and then leave it out
for about 20 seconds i usually find that's long enough to reset the whole pc you can leave it
out for a minute if you wanted just to be sure and also you may have to take out your graphics card
for this as well in this case we can just pull it out since there's no screws attached but you may
have to unscrew the graphics card and take it out and then put it back in because the little battery
may be underneath the gravis card now once you've done this put your battery back in if you have to
reconnect your graphics card then go do that as well and then i want you to make sure that your
monitor is plugged off of the gravis card not the actual motherboard itself so a lot of people
will get the pcs and then they'll plug their motherboard will have what's called a display out
and they'll plug it off the motherboard and they'll get a black screen when they're meant
to be plugging off the graphics card or of course if the pc's bios has been trained to work off the
motherboard and not the gravis card when they go to plug the monitor off the graphics card it also
gives out a black screen so essentially resetting the whole pc by doing this and then putting the
graphics card back in and then plugging your monitor off the graphics card will train the
computer from the get go to work off the graph scope which is definitely what you want especially
if you're on a gaming pc or you're using multiple monitors from the graphics card drivers
so that is the most common problem when your computer won't start and you have a black screen
however there are some other problems and recently there's been two computers that have come to me
especially this one on the desk here which is now the fourth time this pc is coming back and
i'm going to talk to you guys about the more rarer problems that can occur and how you can fix them
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using the coupon code bftyc links in description below welcome back to tech yes city and right here
we'll give you guys a rundown of this computer on the desk this is actually a different pc to the
one i initially sold so when i sold this pc the first time around it was working it had a 1050 ti
it had eight gigahertz of ram and a 4570 and when it came back the computer was completely gone
so it wasn't even booting and i was sort of scratching my head because these pcs that i sell
on the lower end here they're actually very sturdy because they're x business like high-end business
server pcs that people use for 24 7 reliability so it's kind of rare for a pc like this that's
come out of the studio and it's fully working to then come back a week later and it's completely
gone there's not even intermediate faults it's just gone so what ended up happening was
that computer had a faulty power supply and i and because i didn't have time i ended up just
saying look there's probably something else going on here so i replaced the whole pc for the person
until i could have time to inspect the original pc so that person then got the replacement pc
with everything changed everything had been changed on this pc they then come back to me
another week later and said this pc something's not working it's giving me out a black screen
and i was then i knew i was like okay this is very weird and what had happened was the graphics card
that's the thing i'm holding in my hand right now there's two of them actually it ended up being
toast it was gone there was no bringing this thing back and so i thought okay perhaps he got unlucky
and the gravis card was on its way out so i then replaced it just to check i then put in instead
of a 1050 ti i put in a gtx 750 just to check because if he's got something wrong on his end
bringing back the pc constantly and me fixing it isn't going to fix the actual issue so i put in
the gtx 750 and sure enough another week later the pc came back and this gtx 750 i'm holding
in my hands is now kebonkers it is gone and this is one of those things where okay at this stage
i'm um i'm actually going to be charging to fix this pc because i know it's not a problem on my
end so i've told them look we're putting in now a gt 740 until they fix their issue and i said
to the person who bought this piece i said look there is something going on at your house and they
admitted to me that their dishwasher had recently failed as well and so i'm thinking to myself okay
well what it is in this case was i've come into this problem twice in the past once was when i was
living in japan and that was that the powerpoint that you're plugging into wasn't grounded properly
and what this does on most devices is it will create a discharge and so for instance if
you're connecting something that's plugged in to something another device that perhaps is grounded
then there can be an initial discharge from that cable that you're connecting to the
said pc device and so the easiest way to check for this is especially if it's a hdmi cable so
you're plugging in a monitor that is not grounded properly to say a computer that you've just set up
and you haven't turned on yet the easiest way to check is just to touch the tip of the hdmi cable
and so if you get a shock from that do make sure that you're inserting your gravis card
and it's a non-discharge cable in that both your monitor and your pc power points are grounded
properly and in terms of grounding all that means is that there's a extra point in the power line
that goes to the actual earth inside the earth and it lets out all the discharge into the earth so
it's important to do this for pc parts otherwise parts can be overloaded and with pc parts they can
quickly become toast if they're overloaded and so in this case with this pc right here i definitely
want the said person to fix up their problems before i'm sending out the pc again because a pc
having faults every single week definitely spells something seriously wrong on the said
person's uh powerpoint perhaps that particular powerpoint that they're plugging the computer off
just wasn't grounded properly and the same for the dishwasher but other power points in the house
were grounded correctly so that's something to look out for that can be a weird issue but can
definitely cause you damage financially because it's going to cost you money to replace the
said parts so the next problem is interrelated i'm actually going to put out two recommendations here
and that is actually becoming increasingly more common and that is faulty cpus on older gear so i
recently had a friend who came over with a pc and he said brian can you help me fix this computer up
uh it's just it boots and then it just as it's going to windows it just gets a complete black
screen and i was like okay that's really weird but because it's doing this problem consistently
i had a suspicion that it was actually either the power supply or the cpu and so we tried a
different power supply and it still did that same problem but then after that i actually changed the
cpu out and it was an i5 2400 and i changed that for a spare i5 2400 that i had on hand and sure
enough that fixed the problem straight away so basically this i5 2400 cpu that we're using had
been used for so long that it just had degraded over time to the point where it was failing to
boot to windows properly and so what happens on this case especially if it's a pc where you can't
get into the bios you sometimes can't change the said default voltages but if you're on an
aftermarket vendor board like a zeus msi as rock or gigabyte sometimes you can go into the bios
and change the voltage settings and up the voltages even just five percent across the board
and that can prolong the life of your cpu but on the back of that ddr3 memory or ddr4 memory
this stuff can be faulty and actually it's one of the most commonly faulty parts that i come into
on pcs however i find with ram if it is faulty it'll either do two things and that is
a faulty sticker memory the computer just won't boot at all but if it's faulty to the point where
it can still boot usually the behavior will be erratic and unpredictable in that you may
make it to windows sometimes you'll boot up a program the whole pc will turn off or sometimes
a program will crash or sometimes the pc will just freeze upon booting and give you the said
black screen but in this case if you want to check if your computer is faulty because of ddr3 memory
and especially if you open the pc up and you see there's two sticks of memory you can just take
out one stick at a time and alternate your usage on the computer between those sticks of memory
and that should give you an idea if perhaps one of the sticks of memory is faulty and now it's time
for the last problem and i mentioned this one last because it is my opinion the most rarest problem
that i've come into i've only ever come into this once where a power supply is faulty
but it passes all the power good tests absolutely fine so all the lights light up the uh the power
supply tester is showing that this power supply should be good but then you boot it up and you
get stuck on windows things freeze and things just don't work properly in general so typically if you
have a faulty power supply things probably just won't boot up at all or you won't even make it
to the bios screen but in this case if you do have a faulty power supply but it's not showing up any
initial symptoms it can be one thing to try and change especially if it is from a no name brand
and you've never heard of that power supply before you check the price on that power supply online
and it's a very cheap power supply so in this case i always do recommend if you're using a
pc especially if you're serious about gaming then you should step things up and get a decent power
supply at least one from a reputable manufacturer anyway guys with that aside i hope you enjoyed
today's video on how to fix a pc that won't boot or just gets a black screen another thing that
you can try too is if your pc has a speaker on it then you can usually listen to the pc and if
it's booting to windows but it's still giving you a black screen it can mean that the pc is
working normally but it's just the graphics card or maybe the hdmi cable or something like that
isn't working properly so in that case an easy way even if you don't have a speaker an easy way is
to test if the computer is working fine still but it's just say the graphics card or in the graphics
card pipeline is to turn the computer on and then leave it for about 30 seconds or even a minute
and then press the power button again and see if it cycles down normally and so that means if you
press the power button even when the computer's on especially in windows 10 it'll just automatically
start turning the computer off for you but however there is a few seconds delay there before the
whole system shuts off and so that can give you a indication if the computer is generally working
fine versus uh something that's wrong from the get-go with say the motherboard the ram or the cpu
but i will refer you guys if you want some more tips and tricks on how to fix some weird problems
i'll thread you to another video that i made but besides that it's always a good thing to have a
little speaker on your pc and if you're getting beep codes that are outside the ordinary beep code
that can also tell you problems with your computer and you can refer to the original
manufacturer's guide so speaking of questions we do have here the question of the day which comes
from randy sprouse and they ask as much as i like your content i have to ask a difficult question
aren't you driving up pc part prices with your reselling so to answer this question
directly it's a good question i'm happy to answer questions like this you haven't been rude at all
or anything like that you're just just asking a question man so i'm more than happy to answer that
and basically i think that we don't use pc resellers don't drive up prices we actually
bring prices down because we're competing with uh new sales which those parts are manufactured at a
constant supply rate usually they're manufactured at a constant supply rate so me selling a
reselling a used pc is not only beating out the retailers where you're keeping the retailers
prices in check with used pc resales but you're also taking away from that demand for new parts
which essentially will bring the prices down however on the flip side since i am buying
used pc parts off the market i can be raising the prices of those so that's why i've always said in
the past that the used market's a great thing because it does work well with the new parts
and it keeps both in a great balance for the tech enthusiast or even someone who just wants to get
into the land of pc gaming hope that answers that question i'll catch you guys in another tech video
very soon if you stayed this far and you're enjoying that tech yes city content be sure
to hit that sub button ring that bell and i'll catch you in the next one peace out for now
bye wow bye