Thanx, Chris, I'd forgotten completely about Tech Tools. I updated
Tech Tools Deluxe to include Leopard, and it passed the video ram as
well as all other systems with flying colors. Now, I suppose the
deluxe version might not have checked my particular video card, but I
can't imagine that as it's the card that came with the machine. When I
get time I'll look at Tech Tools Pro and see if it lists the cards it
will check.
Which leads me to believe that I might just be looking at an
insufficient RAM problem.
--Bob
On May 24, 2009, at 7:28 AM, Chris Barker wrote:
> For the Mac, TechTool Pro will check hardware as well as check and
> rectify system software problems.
>
> Chris
>
> On 24 May 2009, at 12:14, Chuck Norcutt wrote:
>
>> Yes, I should have said DIMMS. SIMMS are too far back for your
>> machine.
>> Just to be clear, I really think the problem is in the video card
>> memory but I don't know how to test it. The fact that you're not
>> seeing
>> the problem at the moment may just be that that piece of memory is
>> not
>> in use or the access pattern hasn't triggered the fault. Some memory
>> problems don't show up except with certain bit patterns.
--
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