Computer Turning on, but no output

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Jiggz

Diamond Member
Mar 10, 2001
4,329
0
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If you change mobo you'll be better off with a reformat and re-installation. As for the activation, I don't think there is a limit of the number of times you can re-activate. NOt sure but why would they limit the number of re-activation. But as for that ECS mobo, the best way to find out if it's DOA is to make sure you use a known working PSU. You can test this by doing the jumper trick on the mobo power connector (green wire with any black wire with paper clip) Unmount the mobo and just install the video card and a stick of ram. Connect the power on case connector and turn on the system. It should at least POST.
 

phantom404

Golden Member
Nov 2, 2004
1,460
2
81
As long as your motherboard has the connection to hook up your harddrive then you shouldnt have any problems.

Like Jiggz said a reformat is recommended because IMO its a 50/50 chance that windows xp will work on a new motherboard. I've seen it where it boots up just find, installs the drivers and works just find. Other I've seen it try and boot windows then go straight to the BSOD. Before you switch maybe you can hook your HD up to a different computer to back stuff up
 

Brother Manfredy

Junior Member
Oct 14, 2005
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After thinking about it a little more, another thing that both the motherboards are sharing is the heatsink. Could the heatsink be causing a problem like that? I always assumed that the computer won't turn on without one, but i guess i'm not really quite sure.

I think it is just strange that both motherboards are having the same problem, so i want to assume that something that both are sharing is the problem. The processors are identical versions of each other(actually, one is a "Barton" type, the one that came with the newer motherboard), AMD 2500+
 

Aquila76

Diamond Member
Apr 11, 2004
3,549
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Originally posted by: Brother Manfredy
After thinking about it a little more, another thing that both the motherboards are sharing is the heatsink. Could the heatsink be causing a problem like that? I always assumed that the computer won't turn on without one, but i guess i'm not really quite sure.

I think it is just strange that both motherboards are having the same problem, so i want to assume that something that both are sharing is the problem. The processors are identical versions of each other(actually, one is a "Barton" type, the one that came with the newer motherboard), AMD 2500+

Unless the heatsink is somehow pulling/pushing the CPU out of the socket, this shouldn't be an issue. If it were, no watercooling setups would ever work.
 

redhatlinux

Senior member
Oct 6, 2001
493
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Ok, lets get a few things straight here. You don't need a HDD or a floppy for the system to finish POST (Power On Self Test).
You won't get beeps (normally) without the case speaker connected (the plug should be about a half an inch wide with space for four pins, only the outside 2 red and black are used). By connecting the mobo direct to the case without the standoffs you could well have done damage to the mobo and or the cpu. You may be lucky that the PS simply would not power on when it saw the direct short.
Technically, you don't even need memory for the POST to start, its contained in the BIOS code, the system would beep with no memory installed.

Some mobos have there own built in speaker device or leds.
 

munKs

Junior Member
Nov 8, 2005
2
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Ok OK!!! i had this very same problem and after 6 days of buying new components with no joy, and the overwhelming desire to scatter peices of 'This' machine all over the garden with the aid of the biggest boots i could find i came across this and felt a right ***...




"I have a very similar problem with my computer; for some STUPID reason, when I turn it on my monitor also says "no video input" and the power button is orange (Benq LCD, maybe we have the same one...), and everything is spinning but absolutely nothing happens. For a while I tried taking things out and testing all the RAM sticks one by one, but then - weird that I didn't try it earlier - one day i leant on the keyboard when it wouldn't start up, and it worked.
Turns out that, for some stupid reason, my computer only half turns on when you press the power button, and then needs to have a key pressed in order to work. Pfft!"


...... it worked much to the amusement of everybody i dont talk to anymore!

 

Boztech

Senior member
May 12, 2004
782
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I skimmed the thread so far... have you tried a different CPU? It could quite possibly be damaged. I have an RMA on my CPU and RAM currently for a somewhat similar problem.
 

BlancoNino

Diamond Member
Oct 31, 2005
5,695
0
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I had a problem like this. I didn't have the motherboard mounted correctly and the video card wasn't being inserted into the slot all the way. Make sure your motherboard is FIRMLY mounted especially around the video card slot.
 

acole1

Golden Member
Sep 28, 2005
1,543
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dumb question, but are you sure the system is getting power? maby i missed it but i didnt see anything saying that led lights were on, HD was spinning, floppy was seeking, or fans were spinning.... maby i missed it.

just a thought
 

munKs

Junior Member
Nov 8, 2005
2
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Originally posted by: Brother Manfredy

Plugged in the essential components, turned it on, and it seemed like i finally had a working computer. But after awhile, my monitor still had no signal coming to it. This was the same problem my other motherboard when i figured i damaged the DIMM sockets, i guess i was wrong.



I had all the hardware hooked up and ready to go waiting for the RAM to come in. I installed the ram, but much to my dismay it didn't fix the problem of the monitor getting no signal.
 

Augi

Junior Member
May 3, 2005
1
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i have different problem but maybe same symptom
interupted during bios update process then after that
my mobo didn't work at all not even post
i try cmos procedure , than
i try boot block jumper procedure
the jumper set the power on the cd on the fdd read then the update bios disk
process began correctly the system signal on
but after that
move into jumper normal position there is
power on cd on fdd on but it seem asking for something i didn't now for sure
but no p-o-s-t at all only sound of one short beep then pause then two short beep
i try put the disk update on fdd but didn't work at all
if there's any solution beside change mobo or bios chipset
please help me ,i 'm sorry, i'm looking for the best advice

2,4 ghz intel, mobo intel 845 chipset 512 cache / 533 fsb others are standard