AutoCAD MEP General

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Contributor
Posts: 12
Registered: ‎02-26-2010
Message 1 of 6 (1,617 Views)

FATAL ERROR: unhandled access violation reading 0x0051 exception at ebf9ac70h

1617 Views, 5 Replies
03-22-2011 01:15 PM

When using the electrical part of MEP 2011, I normally get FATAL ERROR: unhandled access violation reading 0x0051 exception at ebf9ac70h when zooming in and out. It normally doesnt happen until my file size gets bigger. I had the same error in MEP 2010

 

I'm using HP z400 workstations. 2.66 quad core 14G rams. ATI firepro v4800 1G  graphics.

 

Is anyone else having the same problem?

Active Contributor
blackeagle1245
Posts: 39
Registered: ‎02-21-2011
Message 2 of 6 (1,603 Views)

Re: FATAL ERROR: unhandled access violation reading 0x0051 exception at ebf9ac70

03-23-2011 12:12 AM in reply to: gaylorcad01

it is a common error it can happen with many things not just with electrical part while zooming in or outing. There is an update for mep 2011. Have you installed it ?. It may work if you havent installed.

Contributor
Posts: 12
Registered: ‎02-26-2010
Message 3 of 6 (1,592 Views)

Re: FATAL ERROR: unhandled access violation reading 0x0051 exception at ebf9ac70

03-23-2011 05:11 AM in reply to: blackeagle1245

The only update i have is update 1. I went on autodesks website and downloaded the lateset graphics driver aswell.

 

thanks!

Active Member
cwmccall
Posts: 9
Registered: ‎02-03-2011
Message 4 of 6 (1,572 Views)

Re: FATAL ERROR: unhandled access violation reading 0x0051 exception at ebf9ac70

03-23-2011 12:35 PM in reply to: gaylorcad01

Yes.  I have had the same FE and the file size was relatively small - 7MB or so.  And it's one of those errors that totally blasts you out of the program.  Nothing nice about it at all.  Changing WHIPTHREAD to 3 fixed it for me.  

 

 

 

Quadcore Xeon 2.67

HP-Z400

12GB Ram

Invidia Quadro FX 3800





~Chuck

) It's just as easy to do it right as it is to do it wrong (
Contributor
Posts: 12
Registered: ‎02-26-2010
Message 5 of 6 (1,571 Views)

Re: FATAL ERROR: unhandled access violation reading 0x0051 exception at ebf9ac70

03-23-2011 12:39 PM in reply to: cwmccall

What was your  WHIPTHREAD before. I have changed mine. I want to say it goes up to 15 but I'm not 100% sure. I'll have to check and see what mine is set as.

 

thanks!

Active Member
cwmccall
Posts: 9
Registered: ‎02-03-2011
Message 6 of 6 (1,550 Views)

Re: FATAL ERROR: unhandled access violation reading 0x0051 exception at ebf9ac70

03-24-2011 12:17 PM in reply to: gaylorcad01

Not sure about 15, but from Autocad's help:

 

0

No multithreaded processing; restricts regeneration and redraw processing to a single processor. This setting restores the behavior of AutoCAD 2000 and previous releases.

1

Regeneration multithreaded processing only; regeneration processing is distributed across two processors on a multiprocessor machine.

2

Redraw multithreaded processing only; redraw processing is distributed across two processors on a multiprocessor machine.

3

Regeneration and redraw multithreaded processing; regeneration and redraw processing is distributed across two processors on a multiprocessor machine.





~Chuck

) It's just as easy to do it right as it is to do it wrong (

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