computer wont turn on

[jumping350]

Any computer bods know why possibly my computer wont turn on? No power at all when i press button, last time i used it was fine now nothing, would it be my psu? How would i know? Anyone in surrey able to take a look? Its a gaming computer

any help appreciated

[longsh07]

Could be as basic as the fuse gone it the plug check that first or try a different power cable

[ioneabee]

are your lights working in the house ??

[jumping350]

Ive tried 4 cables now and it sparked slightly as i plugged the last one in,lol yes my lights in house work

[longsh07]

If the PSU had gone I think you'd smell it. Whenever they have blown at work they tend to stink like smoke!

[ioneabee]

just checking

 

most likely your psu - have you another computer in the house to swap it out with

[marzman]

Open the case up... can you see any lights illuminated on the motherboard? If not then your PSU has most likely blown.

 

Order a new one online... you should be able to get one for under £25. Or if you have any work colleagues you could borrow one off, its a 10 minute job to swap out (4 screws in the back, and then just unplug all the plugs.)

[jumping350]

Yeah i read about the smell but couldn't tell as i have a cold, Il buy another one tommorow and try, really odd ive opened it up no loose connections or fried boards looks all ok

[jumping350]

Someone's selling one down the road from me do i have to get anything special or will any one off a gaming computer do?

[ioneabee]

any one for now - probably best in excess of 450w though - but if going for a new one would aim at 600w

[longsh07]

Open the case up... can you see any lights illuminated on the motherboard? If not then your PSU has most likely blown.

 

Order a new one online... you should be able to get one for under £25. Or if you have any work colleagues you could borrow one off, its a 10 minute job to swap out (4 screws in the back, and then just unplug all the plugs.)

 

Forgot about that, check the LED on your motherboard (if you have one) is lit.

[Fodder]

If it's a gaming rig you will most likely require a high rating one as graphics cards can consume a lot of wattage... Check what you have now and go by that

[ioneabee]

also check the power requirements on your graphics card - gaming ones usually require a 6 pin supply to it - and on the whole they're not standard

[longsh07]

Corsair have a good rep if you get a new one

[jumping350]

Doesn't appear to have a light, if it does its not on, had it over a year and no probs so would have thought its capable

[neo]

If it's a gaming pc with high spec then u need to get at least a 650watt with 30amps or more on the 12v rail and not a cheapo ebay one either,

 

OCZ/corsair seem decent brands, i have a 750 corsair one cost me close to £70 tho

 

think this is mine - http://www.amazon.co.uk/Corsair-TX750V2-Enthusiast-Series-Bronze/dp/B004O0P9VC/ref=sr_1_4?ie=UTF8&qid=1382907491&sr=8-4&keywords=corsair+750

 

shot up in price tho

[Gudzy]

The cheap power supplies may have a certain wattage rating but won't provide the power efficiently or regularly. There's an an 80 plus certification to show how efficient a power supply, stick to one with a certification or a well known brand if you can.

[ioneabee]

defo budget one is NOT the way to go - you get what you pay for in these things

[neo]

http://www.ebuyer.co...-fan-ocz700mxsp

 

^^ might be suitable for your needs ?

 

depends what gfx card u have, does it need 1 or 2 6pin pci-e cables ??

 

 

remove the PSU that's already in there and see what the rating is, should give you a good idea what to look for

[jumping350]

Ok mine is a rohms 450watt , i nipped down the road and ended up with a new gaming pc cover that has a qtec 450watt psu in it,hopefully its ok, just got to figure out which plug goes where

[4RE Leather]

Is there not a small glass fuse just b4 the motherboard?

I have a quadcore ACER Predator Gaming PC and it has a glass fuse in it!

[ioneabee]

which century was that built in

[stubzie83]

Could be the 5v standby power has failed either in the PSU or on the motherboard. This is required for the soft start switch that turns on the computer. I once had a motherboard that had this issue as some of the capacitors on the standby rail had failed preventing the switches from starting the PC.

 

If you can find the pin out for the PSU you could check the 5v standby rail output with a multi meter or check the voltages on the power switch connector on the motherboard.

[jumping350]

This is getting confusing lol what's my pcei cable? I thought it might be switch also, have everything in the case i just got except motherboard and drives so hoping if something is broke i can swap it, not bad for £15 on a Sunday night, see gumtree is good lol

[jumping350]

Also recently i have had no sound on the main screen its has speaker with cross next to it though it recognises a device is connected but wont allow me to select anything, im hoping this is related to psu also, i hate computers lol