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Computer does not turn on..

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September 23, 2012 6:14:10 PM

my compute does not turn on at all.. unless i change the power cord it will turn on for a couple seconds then turn off, then turn on again for a couple seconds and then of and it will repeat that forever.(fans and everything will go on for a couple of seconds)

and i have tried everything in that guide that guy wrote on the fourms..

computer:
Corsair hx850 850 watt
asus rampage extreme iv
intel 3930k
xfx 5850
7200rpm hdd (western digital black caviar)
16gb 1600mhz ram (g skill)
60gb ocz vertex 2
lite on cd/dvd drive
7 fans total 3 from case and 3 custom fans (no led) a 1 from the cpu fan
using the corsair 800d case
( i check all the parts are compatible and i have had the system running great for about 1 year) it worked last night and before i went to be i had turned off the extension cord switch so that the system had absolutely no power going to it (power surge is out of the question)

help please....

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a b B Homebuilt system
September 23, 2012 7:15:58 PM

try using one stick of ram and place it in the a0 slot first and see if the system posts. reboots like that are caused but mb not being able to set the ram speed up right and go into overclock fail mode. or one of the legs on the power supply is bad.
with the ram if it a bad stick pulling or switch ram may let your system work with less ram till the replacment stick comes in. with the power supply connect a fan or two to it and use the paperclip test..if the fans sputter then it may be the ps. the only real way is with a meter or a load tester.
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September 24, 2012 12:32:08 AM

smorizio said:
try using one stick of ram and place it in the a0 slot first and see if the system posts. reboots like that are caused but mb not being able to set the ram speed up right and go into overclock fail mode. or one of the legs on the power supply is bad.
with the ram if it a bad stick pulling or switch ram may let your system work with less ram till the replacment stick comes in. with the power supply connect a fan or two to it and use the paperclip test..if the fans sputter then it may be the ps. the only real way is with a meter or a load tester.


ok, thanks =D

i havent tried the the ram thing yet but with the meter where would i stick the 2 needle things?
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a b B Homebuilt system
September 24, 2012 1:05:13 AM

Sounds to me as if it is a faulty power supply, trying another power supply is the best test.
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September 24, 2012 1:27:20 AM

i just put my power supply into another computer and it worked. (although the computer i tested it on only needed a 400 watt power supply.
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a b B Homebuilt system
September 24, 2012 7:41:52 AM

check the mb qal list for ram to see if your ram is ok the qal list. also chexk the mb bosd rev if there a sticker or on the box. you may have a ram read issue from the bios.
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September 25, 2012 4:23:12 PM

smorizio said:
check the mb qal list for ram to see if your ram is ok the qal list. also chexk the mb bosd rev if there a sticker or on the box. you may have a ram read issue from the bios.


oh ok.. my ram seems ok.. and i already shipping out my power supply to corsair and going to send my motherboard in to to asus..

how is asus rma service?
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