my pc keeps randomly shutting down(TTL sent me)

Ross227 · #1 01-12-10, 08:03 PM

this is the specs of my pc before i ugraded it intel core i7 920 @ 2.66 ghz 6 gb of samsung triple channel ddr3 memory i dont know what the speed of it is though my motherboard is acer thats all i know about it. my graphcs card is an ati raedeon hd4850 1 gb 2 sata hard drives and 1 sata dvd drive the only changes i have made is i have moved everything to my new antec 1200 gaming case and upgraded my psu to an antec cp 1000w and upgraded my graphics card to a evga superclocked gforce gtx 480. another thing is when i had my old psu i only had to put a single 4pin cpu power cable in and it worked but with my new psu i have to put 2 4pin connectors into the motherboard if i only put 1 4pin connecter in it powers up for a split second then cuts out. It was working fine for the first couple of days now it cuts out every now and again. if theres any parts of my pc you need to know that i have missed out ask me and ill add it.

AMD_PBz · #2 01-12-10, 09:18 PM

It shouldn't matter which of the 2 EPS (Motherboard) 8 pin connectors you use but I would recommend using both parts of 4+4 or the solid 8 pin. make sure that your 24 pin connector is seated correctly along with your 480.

If the same happens take everything out start with just the 480 and 1 stick of ddr3 your OS drive and dvd drive and see what happens make sure everything is seated in place

tinytomlogan · #3 02-12-10, 12:13 AM

Also dude please be very specific about what happens when it goes off.

Ross227 · #4 02-12-10, 12:26 PM

Ive had to go on another PC to type this mines isn't able to get to the windows loading screen without switching off. right before it switches off the psu makes a clicking noise. after 5 seconds it will switch back on then i have to do the start windows normally thing. then it does the same thing all over again.

Ross227 · #5 02-12-10, 12:39 PM

Do you think a cmos reset will fix it?

hmmblah · #6 02-12-10, 01:27 PM

Quote:

Originally Posted by Ross227

Do you think a cmos reset will fix it?

Good place to start. You should also see what voltage your ram is rated at. Default is 1.5v for DDR3, but most sets I've used need 1.65v as a minimum to run at their rated speeds.

Ross227 · #7 02-12-10, 02:22 PM

i went into my bios and watched my cpu voltages all of them where stable except from the 5VSB. the 5VSB was stable for the first couple of minutes then it dropped from 5.1v to 4.8v then jumped right up to 5.5v then it cut out. does anyone know what could be causing it to go so high cause i think that is whats causing the psu to cut out. my psu also has 3 protection things one of them is (ovp) over voltage protection.

F-alienware · #8 02-12-10, 03:29 PM

My 5v line fluctuates but not by that much.

The PSU could be broken. That or something connected to it could be causing a problem.

AMD_PBz · #9 02-12-10, 03:35 PM

Well your 5v is barely within range at 4.8 as the spec is 4.75-5.25V

You said your board is an Acer? can you see a model number of any kind?

as it would possible help

Ross227 · #10 02-12-10, 03:40 PM

Quote:

Originally Posted by AMD_PBz

Well your 5v is barely within range at 4.8 as the spec is 4.75-5.25V

You said your board is an Acer? can you see a model number of any kind?

as it would possible help

i have been trying to find my motherboard manual since i got my pc and i cant i could only find a simple user guide which was no help