GAHH, new system not powering up at all...

[MaxDSP]

Its got:

brand new ECS K7S5A and an AMD 1600+
1x 256 MB DDR
40 GB formatted HDD
(brand new) 300W Antec PSU
(2-3 years old) Antec KS382 case
Toshiba 16X DVD-ROM
GeForce2 GTS

I hooked everything up barebones, meaning I only have the dvdrom and video card and mouse + keyboard hooked up. When I go to turn on the power, there no power up of anything. Ive doublechecked all the connections and they all seem OK. However, when I unplug the power cord from the PSU, I hear a [very] faint whine (like when something slowly shuts off). Ive checked the jumper settings but still no dice. One thing I noticed was that the red power indicator on the back of the PSU was on 115 or something, so I changed it to like 250. That still didnt work

Also, how often do the power buttons on the case go bad? Whats the fastest way to tell if the power switch on the case itself is faulty? I didnt see anything wrong with the wires.

Any suggestions? Im gonna have a hard time accepting the fact that it may be a dead mobo, since the Epox I had (which this was supposed to replace) also came DOA.

 

[slackerinabox]

IT SHOULD BE ON 115!... This sounds like a "duh" situation, but do you have a cpu flan plugged in correctly? Also, I've had this happen to me when I used an older fan on a newer motherboard.. Newer motherboards have this fail safe thingie (I'm a geek, not a tech so "thingies" the official terminology that I use) that makes sure that your CPU has a fan hooked up.. Older cpu fans don't send the magic signal that says "hey, I'm here and doing my thing" so your motherboard want let you boot.. in other words, the fan might work fine but it doesn't have the sensor thingie.. i'm too brain dead to think of a proper analogy.. My suggestion - go to Compusa or your local computer store and pick up a fan.. test it out and then see what's going on.. Also, memory is a big thing to look into-is it all the way in? Next up - agp video - I sometimes forget to push down until it CRACKS.. i Mean.. Snaps.. no.. wait.. CLICKS.. you'll know what i mean when it happens.. lastly, this sounds dangerous but it's not- unplug all the little wires that go to your mother board (the little ones like HDD POWER, RESET BUTTON, POWER BUTTON, etc...).. Use a flat screw driver to touch the POWER BTN pins.. If it boots it means that your power button is the issue (which is what you think it is - i doubt that's the case)

 

[MaxDSP]

Yea, I have a heatsink and fan combo installed on the CPU (GC68). Ive also made sure that it was hooked up and everything.

Before I installed the mobo, I checked the CPU to see if I had maybe cracked it during the previous installation, but I didnt see any cracks or anything.

Could this also be a grounding issue? I remember that one of the screws, instead of screwing into the brass standoff, it pulled it out. I tried to screw it back in but couldnt screw it the whole way. Would this cause the mobo to not boot?

 

[bozo1]

Check the leads from the on/off switch carefully and make sure they are connected properly. One of the connectors is not standard on that board - can't remember if it's the on/off switch or the power LED.

Check the clear CMOS jumper. Many K7S5A's were shipped with it in the wrong position. If it is correct, go ahead and clear CMOS to make sure that's not the problem.

Reseat all of your cards and the RAM. Try a different slot for the RAM.

If none of that works, take out all of your cards except your video card and disconnect all of your drives.

If that doesn't work, take the motherboard out of the case and try to power it up with it sitting on a piece of foam or other nonconductive surface to ensure that nothing is shorting out.

And yea, leave the powersupply set to 115.

 

[isaacmacdonald]

yes, check cmos jumper. On the last three boards I've had, my system won't power up if the jumper is in the wrong position.

 

[MaxDSP]

Is the CMOS jumper the one marked JP4? I remeber I shorted pins 1 and 2 to clear the CMOS, but that didnt help the situation any.

 

[trilks]

of all this advice, for god's sake dont put the voltage select on 220 (or 225, i think they show). you will destroy your mobo for sure, and probably some other devices.

 

[MaxDSP]

Originally posted by: trilks
of all this advice, for god's sake dont put the voltage select on 220 (or 225, i think they show). you will destroy your mobo for sure, and probably some other devices.

eh, I was getting frustrated and one of my friends told me to try it, since he had a similar problem and switching the power to something else (probably not 220) hlped him. The box that came with the PSU doesnt give any info on what it shouldve been

 

[bozo1]

The box that came with the PSU doesnt give any info on what it shouldve been

Most people know what voltage their country uses. 🙂

Anyway, I've powered up systems with the voltage switch set incorrectly before and nothing bad ever happened except it not working of course.

 

[MaxDSP]

Originally posted by: bozo1

The box that came with the PSU doesnt give any info on what it shouldve been

Most people know what voltage their country uses. 🙂

Anyway, I've powered up systems with the voltage switch set incorrectly before and nothing bad ever happened except it not working of course.

dang....burn 😱