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Author Topic: NO Power to Pc at all  (Read 1774 times)
bmself
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« on: October 12, 2006, 02:29:07 AM »

let's see, to start, this is my mom's pc, which i built for her, and i used to think i knew a thing or two about this stuff until this problem.
the computer is entirely custom built,
Chaintech SK8T800 VIA Socket 754 ATX Motherboard / AGP 8X/4X / Audio / 10/100Mbps Ethernet LAN / USB 2.0 / Serial ATA / RAID
Ultra 512MB PC3200 DDR 400MHz CL3 Memory
AMD Sempron 2800+ Socket 754 64-Bit
100 Gb hard drive
450 watt power supply
Dvd Burner
sapphire raedon pro ATi 128 Mb video card (i think it's 9100 series)

and that about sums up my hardware.
the problem has been strange. at first i thought it was just the power supply, i've had them go bad before, and i know chiefmax isn't the best brand ever. so i replaced it, 15 bucks. no big deal. still nothing. this problem is kinda weird, it will not power on at all. nothing. i've double checked all of my power connections going into the motherboard, and also checked all of my connections to the front of the case, (the ones to the HDD lights, and power/reset switches) and everything seems to be in good order.
since the power supply didn't fix the problem, i figured - the motherboard. so i replaced that, which also didn't fix the problem. since that wasn't it, i put the old motherboard back in, so i could try and isolate the real problem, and i'm setting the other aside, although they are basically the same.
so, it's not the motherboard, it's not the power supply, it must be the processor, right? nope, i just bought a brand new one, and nothing. it will not start whatsoever.
hmm, what else, i changed out the cord feeding the back, thinkin that might be it, no such luck. i changed out ram chips (i have the same ram in my personal pc at home) and that didn't do it, although i didn't really think that was the problem.
the only other thing i can possibly think of is maybe the switch on the front of the pc? could that just have gone bad and i just wasted almost 200 bucks on a ten dollar problem?
I'd sure love to hear some input, hopefully i can solve this thing so I can get my laptop back from my mom, i'm just about done living without it.
I appreciate your help,
Bmself
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Cactus
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« Reply #1 on: October 12, 2006, 02:39:54 AM »

I know this is a silly question but is the VOLT switch (red) on the Back of the Computer case set to 115V and not 230V ?


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bmself
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« Reply #2 on: October 13, 2006, 12:17:09 AM »

haha, yes it's 115, i checked that as well.
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« Reply #3 on: October 13, 2006, 12:37:30 AM »

I figured that .. Smiley
Had to ask though.

Well you need to isolate the problem hardware.
Have you tried Booting the computer with just the Motherboard and Power Supply?

When you turn on the PC do you get anything at all?
Lights?
Sounds?


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« Reply #4 on: October 14, 2006, 04:33:25 PM »

yeah i tried that and i have nothing, no lights, no sounds, nothing at all. today i'm going to try a new power on/of switch, and see if it's in the case itself. i'm running out of ideas.
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« Reply #5 on: October 14, 2006, 04:44:08 PM »

Do you have access to another PC Case?
That would save you time and money!



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Geekgirl
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« Reply #6 on: October 16, 2006, 10:20:38 AM »

Quote
yeah i tried that and i have nothing, no lights, no sounds, nothing at all. today i'm going to try a new power on/of switch, and see if it's in the case itself. i'm running out of ideas.
Bypass the power button by jumping the connectors on the motherboard.
Most motherboard have a led light on it somewhere, if yours has one and your not seeing any light at all Im going to assume you have no power to the motherboard.

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« Reply #7 on: October 30, 2006, 08:35:48 PM »

have you tried the fuse in the Plug or if you have an anti surg has it taken a surge and blown the small fuse?, thought this might help.
Derek
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whosdat
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« Reply #8 on: October 31, 2006, 11:14:04 AM »

"fuse in the plug" Huh?Huh??
" i know chiefmax isn't the best brand ever. so i replaced it, 15 bucks. "--try a better one
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bmself
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« Reply #9 on: November 01, 2006, 03:44:35 PM »

well guys, let me get you caught up. since my original posting, i've replaced m-board, processor, powersupply, and case, all with no luck. the new case tells me that it's not my power switch, and i'm not getting any lights at all - except when i plug in the ethernet cable, there is light at the ethernet port showing activity. I'm so lost with this project, i'm debating wether or not to just start over and build a new one from scratch.
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