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New computer wont turn on


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#1 jephf

jephf

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Posted 21 July 2005 - 08:55 PM

OK, here's my predicament: I bought a new computer from newegg a few
days ago and it arrived today. Here is a list of the parts that I bought:
Rosewill Value R103A Black Steel ATX Mid Tower Computer Case
350W Power Supply - Retail
ECS KT600-A Socket A (Socket 462) VIA KT600 ATX AMD
Motherboard - Retail
SAPPHIRE 1024-TC13-05-SAL Radeon 9250 256MB 128-bit DDR AGP
4X/8X Video Card - Retail
AMD Sempron 2400+ Thoroughbred 333MHz FSB 256KB L2 Cache
Socket A Processor - Retail
pqi TURBO 2GB (2 x 1GB) 184-Pin DDR SDRAM Unbuffered DDR 400
(PC 3200) Dual Channel Kit System Memory - Retail
So, I put the processor in the mobo, and put the heatsink and fan in next,
then attached the wire from the heatsink/fan to the 3 pin connector on
the mobo. Then I put the 2 sticks of RAM into the slots and closed
them up. Then I put the vid card into the agp slot. Then i screwed the
mobo into the case with 4 screws. Then I plugged the psu into the mobo
with the 20 pin connector. There was a 4-pin connector wire on the psu
as well, but the mobo doesn't have a connector for it. Then I plugged an
80gb hd that I had into the psu and the mobo. There were also some
color coded wires coming from the front panel of the case which I
plugged into their respective spots on the mobo. I then hit the ON
button and..... nothing. I then went back and read the mobo manual and
checked all the jumper settings. I noticed that the cpu frequency jumper
wasn't set right, so I switched that up (though I figured it didn't make a
difference anyway) Still... nothing. So I thought that maybe that 4-pin
connector wire from the psu not having anywhere to connect might be
causing the problem. So I checked my other computer and it did have a
4-pin connector that was connected to the mobo. I turned off that comp
and took the 4-pin connector out of the mobo and the comp still turned
on. So that eliminated that thought. I then thought that mabye it was
the psu or the mobo. So I connected the psu from my computer that
works to the mobo and hd of the new computer and tried turning my
good comp on and.... nothing. Then I plugged the new computer's psu
into my mobo and hd that works and tried turning the new comp on
and... nothing. So then I figured that either: both the new mobo and the
new psu are doa, or, i messed up the wiring somehow. So I played with
the wiring for a few hours and tried everything I could think of and...
nothing. So there it is. There is one thing that might be good to mention
though. Don't know if it makes a difference or not... The blue and red
LED lights in the front of the case do turn on when I hit the ON switch in
the back of the comp, but then when I try to turn the comp on in the
front, I get nothing. Nothing whatsoever. The psu doesn't even start
up. I figured it's not the processor or the ram or the vid card or anything
like that since, from my experience, even if none of that stuff is in a
computer, the psu at least still turns on when you hit the ON button.
Now, this is my first time putting together an entire computer myself. I
have replaced many parts in my other computer and other peoples'
computers, but never put one together from scratch. So, if it's something
obvious that everyone who puts together computers from scratch
knows, it would be good to know. Otherwise, any suggestions are
appreciated. Sorry, pretty long post. Thank you.
Kip

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#2 stidyup

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Posted 22 July 2005 - 02:39 AM

What sort of PSU have you bought? You've just put retail?? Is it named brand like enermax, antec? Did it come with the case?

You plugged it into your old PC and it worked? What are the specs of the old PC.

What sort of PSU is in your old PC?

If the lights are coming on and nothing is happening I would suggest the PSU you have isn't kicking out enough power, buy a decent PSU you get what you pay for if you buy cheap you get garbage. I've had problems in the past like this with the PC not switching on and it was the PSU.

However this isn't the only cause. Mobo could be faulty, other hardware could be causing the problem I'm afraid it's a process of elimination.

Try booting with just the basics.
1 stick of memory
Graphics card
CPU




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