Computer wont turn on!!!! - HotUKDeals
We use cookie files to improve site functionality and personalisation. By continuing to use HUKD, you accept our cookie and privacy policy.
Get the HUKD app free at Google Play

Search Error

An error occurred when searching, please try again!

Login / Sign UpSubmit

Computer wont turn on!!!!

chmaine_87 Avatar
8y, 4w agoPosted 8 years, 4 weeks ago
So I turned my computer off one night, and when I went to turn it back on in the morning it wont come on!! so checked the power cable of the base unit and changed the fuse, but its not the fuse. A little green light still comes on at the back whenever it is plugged on, but it wont come on when the power button is pressed at the front. The monitor and everything else is fine.

This happened to my last computer too, and i think it was a fuse that went inside the actual base unit.

Anyone know what it could be?
chmaine_87 Avatar
8y, 4w agoPosted 8 years, 4 weeks ago
Options

All Comments

(35) Jump to unreadPost a comment
Comments/page:
#1
sounds like u may need a new power supply
[helper]#2
The same happend to mine a few weeks ago. It needed a new power supply.
#3
Yep - as above. You could do it yourself as it's only a matter of unscrewing old one, unplugging from each peripheral and motherboard and doing the reverse with the new one. Power supplies are around £20 upwards. Alternatively take it to a PC repair shop.
#4
take the power cable out of the back of it and then hold the power button in for about 20secs plug the power cable back in and see if it works. if not probably a new psu
#5
I changed my PSU a few times because i had the same problem, but it started happening frequently and was getting ridiculous so i unplugged the power from the motherboard and made sure it was in firmly, then swapped the power supply to the HDD for a different one and everything has been fine since. Maybe i had too many things on one rail, but nonetheless all is well now.
#6
Yeah ,sounds like the PSU . There is a little test you can do ..........................take the PSU [only held on with 4 screws] unit out of the case as it will probably have to come out in any case .Remember to un-plug all the devices , ie HDD , CD -ROM etc .Look at the 20 pin power connector , there is only one GREEN wire on it and a BLACK wire next to it . Just simply plug the power unit back into the mains and get a paper clip and join the pin [connected to the GREEN wire ] with the pin [connected to the adjacent BLACK wire] . If you fan dose'nt come on , then it's broken and you will need a replacement . I've had the same trouble before and have had to replace quite a few . I now buy the 450W or 500W PSU's .
ps This is safe test to do as your only working with the low current side of the PSU .But ,always take care when working with 240V .
banned#7
psu? but the op states the green motherboard light is still on.
#8
Isn't that powered by the CMOS battery?
#9
Thanks every1 for ur help so far, I just come back from pc world and they said yes it could be the PSU but as the green light is still on it could be a problem with the motherboard, and they charge like £69.99 to do a diagnostics test.

So have had a look at sum videos on the web of how to install a new PSU yourself, and it seems pretty simple, but if it is the motherboard, not sure what else i could do =/
#10
Oh and i'm still kinda new to this, how do u give others gd rep
#11
Click the white scales to the left of the avatar.

DON'T pay PC World anything!! robbing gits!! Just post your problem on here and i'm sure someone will help!
#12
PC world are Scum especially the tech guys!
I went in to see em and an elderly chap had bought a 3 mobilee bb + laptop 2 weeks ago and couldn't get the web on.
so i told him that 3 were upgrading their newtwork and he should be getting a refund from 3 for downtime, anyway the tech guys said it'll cost £35 for us to re-install the software and there is no guarantee it'll work!
#13
csiman
psu? but the op states the green motherboard light is still on.


There are no lights except the power and HDD lights on a computer normally, so any extra lights could be anywhere.

If you could describe (or better, take a picture) of where the light is on the back of the case then that'll help to identify what it's connected to.
banned#14
EndlessWaves;3415434
There are no lights except the power and HDD lights on a computer normally, so any extra lights could be anywhere.

If you could describe (or better, take a picture) of where the light is on the back of the case then that'll help to identify what it's connected to.

thats incorrect. I have two pcs and both have a green light on the motherboard. A PC consumes power even when shut down completely (about 10W I believe).
#15
sancho1983
Click the white scales to the left of the avatar.

DON'T pay PC World anything!! robbing gits!! Just post your problem on here and i'm sure someone will help!


Yeah gna see if my dad or a friend of his can do it instead, will also take a picture later of where the green light is at the back.

Thanks every1!! :thumbsup:
#16
sancho1983
Isn't that powered by the CMOS battery?


No. The motherboard flea light is powered by the PSU. It's meant as a little diagnostic light to confirm that the PSU is good. Although, it's not the ight being talked about here - we're talking about the litte green light on the back of the system, which I take to mean on the back of the PSU. Emachines PCs have these, various other manufacturers too.
#17
Just a thought btw, but if the light at the back of the system is green, that usually means the PSU is okay. It depends on what system you've got, though. What's the make and model number?
#18
I have a Compaq Presario SR2000
SR2029UK

Compaq Presario Media Center SR2029UK PC (RF785AA)

http://h10010.www1.hp.com/wwpc/ie/en/ho/WF10a/12454-12454-3329737-89304-89304-3239110.html
#19
Do you have a WebCam?
Try a slow seductive, erotic dance in front of your WebCam/Monitor , if you're good enough it may just "Turn On" :p
#20
did you bother doing what i said? ie taking the power cable out of the back and holding the power button in for 20 secs and then plugging the power cable back in and testing
#21
curofone
did you bother doing what i said? ie taking the power cable out of the back and holding the power button in for 20 secs and then plugging the power cable back in and testing


Yep have done that before with no luck =[
#22
just posted two posts of an image showing the green light, but they dnt seem to be showing up =/ hope every1 else can see them!
#23
chmaine_87
Yep have done that before with no luck =[


My Emachines also has a green light on the back of thes PSU..

What I can reccomend is that you take the side panel off (usually unscrews at the back) and then if you see a light on your motherboard then the PSU is techinically working fine.


BTW, where is your location? (fixing locally...)
#24
do you have the links for them? Oh and btw.. what image host are you using>?

Tim

Don't suppose there is a red switch at the back of the psu.. could possibly have been turned to 110v instead of 240v...

Tim
#25
I live in east london e14 area
#27
chmaine_87
I live in east london e14 area


Rather far from me.. lol.. Rhyl, N Wales..
#28
chmaine_87
I live in east london e14 area


checked it yet?

Tim
#29
timothyw9
Rather far from me.. lol.. Rhyl, N Wales..


yes far indeed lol thanks newayy
#30
[QUOTE=timothyw9]My Emachines also has a green light on the back of thes PSU..

What I can reccomend is that you take the side panel off (usually unscrews at the back) and then if you see a light on your motherboard then the PSU is techinically working fine.


QUOTE]
#31


Cheers. Reason I asked what model the system was was that some systems have green diagnostic lights on the back which can light up and, depending on the configuration, can tell you what's wrong. That there is just the PSU light though, and it looks good.

Next litte step in our troubleshooting mission then, quick question. What actually happens when you push the power button? Is there absolutely no activity at all?
#32
dxx
Cheers. Reason I asked what model the system was was that some systems have green diagnostic lights on the back which can light up and, depending on the configuration, can tell you what's wrong. That there is just the PSU light though, and it looks good.

Next litte step in our troubleshooting mission then, quick question. What actually happens when you push the power button? Is there absolutely no activity at all?


Yeah nothing happens when I press the power button
banned#33
chmaine_87;3419209
Yeah nothing happens when I press the power button

nothing? no fans, no beeps, no lights on the front. Just the green PSU light on the back?

open up the case and see if any lights are on inside the case.

it may be that your power button lead as come loose (see if you can see the cable from the back of the power button and trace this to its connection on the motherboard - I think it is a very thin blue & white striped cable).
#34
I will try out what u suggested, will do so probably on the weekend when my dads around, as to be sure of what i'm doing lol
#35
Did you do anything with the PC before this problem started? Upgrade or changed anything inside?

Try unplugging the power supply from everything except the motherboard itself. Now try the power?

If still nothing then it is possible (although unlikely) you have knocked the cables that connect the power switch to the motherboard, they are normally a set of multi-coloured small wires that are near the front of the case, sometimes in the bottom corner.

Check they are all connected and seated properly, sometimes the pins will be labelled as with the wires so you can work out what should be where.

Otherwise it is 1 of 2 things. Either the PSU or motherboard. If you have another PC or a friend who trusts you with a PC you could try their PSU in your machine or your PSU in their machine.

Post a Comment

You don't need an account to leave a comment. Just enter your email address. We'll keep it private.

...OR log in with your social account

...OR comment using your social account

Thanks for your comment! Keep it up!
We just need to have a quick look and it will be live soon.
The community is happy to hear your opinion! Keep contributing!