Posted 29 March 2005 - 04:55 PM
Posted 29 March 2005 - 06:33 PM
Make sure all jumpers on the mobo are set correctly
Clear the cmos by unpluging the computer and moving the cmos jumper from pins 1&2 to pins 2&3, wait 5 minutes then move back to pins 1&2
Make sure you move the cmos jumper back to pins 1&2
Make sure the cpu fan is connected to the correct header on the mobo.
Try these if nogo post back
Posted 29 March 2005 - 07:34 PM
Posted 29 March 2005 - 07:37 PM
it worked fine before
Posted 29 March 2005 - 07:41 PM
This does not mean it is good/adequate but at least we will see if it turns on
Posted 29 March 2005 - 07:47 PM
You need a psu with at least 20 amps on the 12v rail for a 754 system this will be listed on the decal on the psu.
I recomend a Antec true 430w or 480w.
Posted 29 March 2005 - 07:49 PM
Posted 29 March 2005 - 08:00 PM
I am not saying this will absolutely solve your problem because of those bent pins but it might and you must start with a new psu before we can do anything else or we would just be guessing.
Post back when you get a psu and we can move on from there.
Posted 30 March 2005 - 10:47 AM
Posted 30 March 2005 - 07:05 PM
I don't know the warrenty of your mobo but it should be at least a year.
I hate to recommend even trying the powmax again,heres why, I have 3 of these psu's of varing wattages that came with cases and as with any psu I bench test it before install. I do this out of the case, I touch the green wirer and any black wirer on the 20 pin connecter with a paper clip to turn it on. Then using a digital volt meter I check the 12v 3.3v and 5v rails.
Keep in mind that the yellow wirer should read 12v but can be plus or minus 5% and still be within spec. This means it could read anywhere from 11.4v to 12.6v and still be within spec.
With these 3 powmax psu's the yellow 12v read anywhere from 11.9v to 12.1v and this is fine but I then put them under load and by connecting 4 case fans and retest, they all drop to 11.4 or below.
When I do the same test with a quallity psu they never drop below 11.9v and most stay above 12v
Now considering all the drives and cpu run off the 12v rail I hate to think how much lower that 11.4v would go and what the results would be.
Just trying to explain the importance of a good psu or need to test when things won't power up.
Posted 30 March 2005 - 07:11 PM
Posted 01 April 2005 - 11:00 AM
I still want to make sure that everything else in my system isnt the problem.
1. Motherboard - probably not the problem, since i get a red LED when i power on.
2. CPU - maybe, since the 3 or 4 pins were bent. But i bent them back and put the CPU into the socket and took it back out, and all the pins were straight.
3. Power Supply - Works, but probably doesnt meet your requirements
4. The USB ports must work since it is the only other thing that comes on (mouse)
One question: Do I have to worry any about the previously bent pins???
Posted 01 April 2005 - 12:49 PM
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