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Author Topic: DKB Cobra reboot issue - caused by overheating?  (Read 3085 times)

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Offline mingleTopic starter

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Re: DKB Cobra reboot issue - caused by overheating?
« Reply #14 from previous page: November 14, 2008, 10:18:48 AM »
Hi All,

Thanks for the many and varied comments and suggestions! :-)

Today (about 15 degrees cooler than yesterday!) it's been a bit better.

I've still to muck around with the PSU (converting an old PC PSU) to confirm it's at fault...

The only issue seems to be rebooting - once it's up the A1200/Cobra will run fine without any issues (touch wood!) apart from the CPU getting very warm...

I've always found DKB stuff to be very good - the documentation with the Cobra is admittedly pretty poor, but my old DKB1202 RAM/clock card was very well made and came with great documentation.

Cheers,

Mike.
 

Offline mingleTopic starter

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Re: DKB Cobra reboot issue - caused by overheating?
« Reply #15 on: November 22, 2008, 10:54:36 AM »
Hi All,

The ongoing saga with my A1200 & DKB Cobra 030 card:

It doesn't appear to be the PSU, since I've tried two different A500 35W units and it's still misbehaving.

The funny thing is that if the A1200 resets due to a software failure, it will ALWAYS restart without any issues.

It's only when I do a CTRL-AMIGA-AMIGA reset that the reboot seems to stall.

I've also discovered that if I do multiple key presses (CTRL-AMIGA-AMIGA) that will sometimes make it reboot, without having to power it down.

It's still bloody annoying that I have to press and press and PRESS to do a warm boot!

The card will run fine, there's no problem there, it's just it seems to randomly refuse to do a warm boot when I want it to...

Has anyone heard of this type of issue before and is there a solution? Is the reset signal somehow not reliably getting through to the CPU on the Cobra card?

Cheers,

Mike.