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My computer won't power on

W

wviperw

Senior member
Ack! I'm setting my new system up for the first time, and it won't power up.

Relevant specs:

AN35N Ultra
Mobile Barton 2600+
Antec Plusview 1000AMG
Fortron 350W PS

Right now the mobo is sitting outside of the case. After installing the CPU/HSF/RAM/video card, I decided I'd boot it up to make sure it worked. So, I plugged in the ATX power connectors from the PS, plugged in the POWER SW 2 pin connector from the front panel, and plugged in the power supply to an outlet.

When I hit the power button, nothing happens.

Now I know the mobo is getting some kind of power because there are two LEDs lit up on the mobo when I plug in the PS. It's just that it won't let me turn the thing on. I'm thinking the problem must have something to do with the front panel connector (POWER SW) that I am connecting to the mobo, right?

So what do I do now?
 
Ok, I figured out that it has something to do with the way my video card is seated. There is a red LED that turns on when my Ti 4200 is seated in a certain way. If I kinda jiggle the video card in its slot, the red light will turn off. The computer only turns on if that red light is off for some reason.
 
A plugged-in AN35N Ultra should have one LED lighted, the green one above the memory slots. That indicates the memory has live power.

There is another LED between the IDE plugs and the main ATX power cable. If that one's lighted, it means your CPU has suffered overheat (usually caused by a reversed heatsink, check your work against these photos).

If the LED just below the AGP slot is lighted, that means you have an old 3.3-volt video card that would damage your motherboard if it tried to power up.

Hope that helps, uh, shed some light on the problem 😀
 
Ahhh, I see you made some headway already 🙂 Make sure your video card is fully seated, here are some photos that might help.

If you're having problems getting it to seat, ask yourself if you remembered to install your motherboard standoffs under the motherboard. If they aren't present, the motherboard sits quite a bit lower, making it nearly impossible to plug your AGP card in properly. It also is going to have electrical short-circuit problems if the standoffs aren't present.
 
Originally posted by: mechBgon
A plugged-in AN35N Ultra should have one LED lighted, the green one above the memory slots. That indicates the memory has live power.

There is another LED between the IDE plugs and the main ATX power cable. If that one's lighted, it means your CPU has suffered overheat (usually caused by a reversed heatsink, check your work against these photos).

If the LED just below the AGP slot is lighted, that means you have an old 3.3-volt video card that would damage your motherboard if it tried to power up.

Hope that helps, uh, shed some light on the problem 😀
Click to expand...

<--leans case over ..peers inside..yep..single green LED lit.. 😀


p.s. make sure P4 power connector is plugged into the board as well

hiya Mech 🙂

<-- goes back to eating chilled pineapple chunks 😀
 
It's the red LED. My mobo manual calls it the "AGP Proof LED." So you're saying I could possibly have an incompatible video card?!? I have an Abit Siluro GF4 Ti4200. I would think that'd be new enough, wouldn't it? How come I've NEVER heard about this voltage thing before?
 
Originally posted by: wviperw
It's the red LED. My mobo manual calls it the "AGP Proof LED." So you're saying I could possibly have an incompatible video card?!? I have an Abit Siluro GF4 Ti4200. I would think that'd be new enough, wouldn't it? How come I've NEVER heard about this voltage thing before?
Click to expand...

there are 3.3v(older) and 1.5v(newer) vid cards..your ti4200 is 1.5..and the an35 is as well..
 
As far as I'm aware of, all cards starting with the original GeForce family are the 1.5V AGP that you want. Maybe you're not getting the card reamed down to the bottom of the slot? Don't be shy, there are two rows of contacts in that slot, and when they're brand-new they can be stiff. So press down firmly and rock the card to get it securely seated.

I guess another possibility is a faulty AGP slot, of course. At any rate, good luck and I hope your rig is online soon 🙂
 
Originally posted by: ScrapSilicon

hiya Mech 🙂

<-- goes back to eating chilled pineapple chunks 😀
Click to expand...
Dude... share those already 😀 Mmmm! Did ya miss me, I was in Seattle for 3 days 😀
 
w00t! It's working now. It seems that the AGP slot is just kind of finnicky at this point. If I bump the video card, the red light will turn on. Hopefully it will get a little more reliable when I actually install the mobo in the case. (just have it on some stacked cardboard boxes right now)

Thanks guys!
 
Originally posted by: mechBgon
Originally posted by: ScrapSilicon

hiya Mech 🙂

<-- goes back to eating chilled pineapple chunks 😀
Click to expand...
Dude... share those already 😀 Mmmm! Did ya miss me, I was in Seattle for 3 days 😀
Click to expand...

wad only one can 😛 but did put two more in the fridge..Seattle..miss ya..uh..well..not really but then again I haven't been on much this past week..just got thru flatlining a 2 yr old XP Home install..16 viruses and well over 400 mal/spywares..removing he bugs and stuff was easy but the XP install was unrecoverable due to other factors(i.e. the twits who had removed so many .dlls and such) XP repair ..wouldn't. Today might get to see a dead Palomino chip 🙁
Hope you enjoyed Seattle tho 🙂

now wviperw put your stuffs in a case and secure it.
 
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