Help! Problem with Enermax power supply

[chaoliang]

350W, new
P4 motherboard
As soon as I conncet the power to a Seagate SCSI disk, it won't boot. Seems the power is automatically shut down although the board power LED is on.
I connected the disk with power from another computer and all the rest disks with the new computer, everything is then OK. Does anyone know the solution?

[The PIT]

New power supply???

[ayoub_ibrahim]

silly question really but did you also connect the additional P4 m/board 12V connector?
if you don't you board is unlikely to startup!

[UtwigMU]

Your PSU might not be enough for your rig.

SCSI HDD might push it over limit.

Try and borrow 400W or stronger PSU if you can.

For rig bellow a step from 200W Codegen to 300W Macase was neccessary when I went from 128MB PC100 to 512MB of PC133CAS2 in order to pass Memtest86.

[Kurt]

Re: Help! Problem with Enermax power supply

Originally posted by chaoliang
350W, new
P4 motherboard
As soon as I conncet the power to a Seagate SCSI disk, it won't boot. Seems the power is automatically shut down although the board power LED is on.
I connected the disk with power from another computer and all the rest disks with the new computer, everything is then OK. Does anyone know the solution?

1/ is that a generic PSU?
2/ is the AGP card seated properly?
3/ is the AGP card compliant with your mobo's AGP version?

[chaoliang]

Hello People,

sorry for delayed answers. I was not here at the weekend and the computer has not worked till today.
As far as I can prove, the problem came from a floppy disk (!). I never thought that it could consume so much power that the whole system crashes. So I tried unplugging all the other devices without thinking about this small thing.
Now I put another floppy disk into the case and everything works fine (three SCSI disks and two cd drives). 400W above could have been better but I really don't like so much heat.
The system was:
Enermax 350W
P4 2.4C
Asus P4C800-E Delux
Corsair 1 GB DDR 400 2-3-2

I'm still waiting for P650. It should come till Monday.

Thanks all for your tips!

[GNEP]

It could have been shorting something.

[moreau]

Originally posted by chaoliang
Hello People,

400W above could have been better but I really don't like so much heat.

Um...
Your system draws the same wattage regardless of what size PS you use.

In fact, drawing the same wattage from a higher rated PS would likely produce less heat than if you draw on a lower rated, similarly designed power supply. Power supplies become increasingly less efficient (and generate more waste heat per watt produced) as they get loaded closer to their maximum limit.

CEM