After a power-outage, there's RED Lamp inside My Mac Pro

[andy-ch]

After a power-outage, there's RED Lamp inside My Mac Pro.

I do a Diagnosis (by inserting the DVD Installer that came with My Mac Pro, and pressing "D" at the startup chime)

And I got this problem/trouble:

4SNS/1/40000001:VMBS

Anyone know what problem is that??

But Thanks God when I totally unplug My Mac Pro few mins, and then plug it back, all RED Lamp inside My Mac Pro were gone!!

And when I do a Diagnosis again, there is no problem/trouble found.

Has anyone encountered the same problem with mine??

Any reply would greatly appreciated.

Thank you.

 

[Dark Dragoon]

I had a power cut a few months ago.

When the Mac Pro came back on, all the red warning LED's were lit. Both on the motherboard and RAM riser boards. Although I only noticed this after several hours of use.

I just restarted and everything seemed ok. Nothing else has happened since.

 

[andy-ch]

Yeah, That's what I found on My Mac Pro when I had a power-cut on My Mac Pro.

Is it normal?

Have you tried to run Apple's Diagnostic Tool when the RED Leds on?

Thank you.

 

[Dark Dragoon]

No I didn't try to run the Apple's Diagnostic Tool at the time, and I haven't had it happen again.

I have run Apple's Diagnostic Tool though a few weeks later and it didn't find any problems. (I had a load of Kernel panics, which was solved by reinstalling OS X. I'm pretty sure the two are unrelated though)

 

[andy-ch]

Mine is normal too, all red lights inside My Mac Pro were gone after I unplugged My mac Pro and then plug the power cord back in.

And when I did Apple Diagnostic Tool, there is no problem/trouble found.

Anyone else encountering the same problem with ours ??

And what that error code refers to, anyone know ??

The AHT error code is:

4SNS/1/40000001:VMBS

 

[Fearless Leader]

I get this red light when I remove the plastic sheet on my G5 while the comp is running. I also had it happen when I upgraded my graphics card and didn't connect power to the card
.

 

[MacNut]

It sounds like a safety feature.

 

[andy-ch]

Actually, there are 10 RED Lamps total...

4 from Memory Card Riser A
4 from Memory Card Riser B
2 from Main Board

 

[andy-ch]

Bump Up!!