Why do I have to turn my rig on twice before it will post?

[Jeffwo]

As the title says, I can turn it on, will not post. Turn it off, wait 10 seconds, turn it back on
and it posts and runs fine.

Abit KT7-R
Brand new Antec 300 AMD approved Power supply

Any ideas?

Jeff

 

[gentobu]

bump

I would like to know what causes this also. I know someone who had a dell 8100 (tower) that did this. they replaced the motherboard twice, the cpu, the psu, and the power button (twice) and none of that solved the problem.

 

[BreakApart]

Chances are the power supply is NOT running at full power soon enough-(your cpu and video card may be surging and the PS can't power up fast enough)

This sort of "misfire" has been happening more and more as more people run high power Athlons and/or Geforce cards. I have a system myself that does this only when my Geforce3 is installed, with my Kyro2 or V3 it NEVER happens.

 

[stockjock]

I have the same problem...I just leave it on all the time or hit reset after I first turn on my machine. I did change out the PSU and it still does it..so its something weird...

 

[FluxCapacitor]

I had this problem as well. My main hard drive wasn't being recognized until I hit reset and then the system would recognize it and come up just fine.

Wasn't until like 2 weeks ago I swapped out the high speed fans in my case for some nice, quiet Vantec ones. Lo and behold! Suddenly the system boots on the first try everytime! I had 2 hard drives and 2 fans running off the same lead out of the power supply, the new setup has 2 hard drives and 1 fan running off the same lead, with the other fan running off the motherboard lead. Perhaps it was simply too much powerdrain upon bootup with all that connected to the same wire?

Try swapping some components to a different wire that are sharing your hard drive(s) power leads, or temporarily disabling a case fan or 2 and see if it boots on the first try. Maybe it'll work for you too? Worth a try...

FluxCapacitor

 

[sean2002]

Do you happen to have a geforce or geforce 2 installed. I had that same problem with a Leadtek and Gainward Geforce 2. I did not have that problem with a Radeon or Geforce 3 installed

 

[Jeffwo]

sean2002,

No, I have a TNT model 64 video card.

Jeff

 

[EvilTwin996]

I had a similar problem. Sometimes it would boot, sometimes not. I replaced the PSU, that fixed the problem.

Of course, YMMV

 

[Jeffwo]

Well, actually, my problem didn't start until after I bought a new PSU. But
at the same time I changed the PSU, I changed the CPU, HS&F.

Jeff