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virtual pc performance issues on powerbook 1.67 w/ 1.5 GB RAM

Source: microsoft.public.mac.virtualpc
Sent: 01/19/2006
From: "P2Ranger" <(email address - cut out)>
Message:

I've searched through the newsgroup here and tried several of the
things listed, but am still having performance issues with virtual pc
7.02 running windows xp pro SP2. I am running this on a powerbook G4
1.67 Ghz with 1.5 GB RAM and 128MB VRAM and lots of hard disk space
left. I have turned off MMX support, cranked down the VPC memory to
192 MB and the VRAM to 4 MB, done everything I can think of to speed up
windows by having no background, classic windows, etc. max perf
settings, no recovery files, not running anything else in either
windows or on the mac side, and I still get a reported speed in the
properties settings of my computer of a 686 at 295 Mhz. Now I know I
should not believe the report, but the VPC feels slower than the 700
Mhz PIII Dell laptop that I have that is almost 6 years old, with the
same memory, video ram, etc. I need VPC to run something called
centra, which is a remote conferencing program so that I can attend a
college class via remote. It requires XP or W2K and 128 MB of ram and
at least a 350 Mhz machine. The audio garbles, and the app lags when
running, either when I am conferenced, or when it is playing back a
recorded file. While I have read lots of audio problems on this site,
I am thinking that my problem is that the perf is just too bad to run
the app, and from what I have read on the newsgroup people with smaller
systems than mine are getting better performance. Any ideas?

Thanks,
Chris

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Related Messages

Re: virtual pc performance issues on powerbook 1.67 w/ 1.5 GB RAM

Sent: 01/19/2006
From: "P2Ranger" <(email address - cut out)>
Message:

Unfortunately $$ is a problem as well, and I was hoping not to spend
anymore than I had to. I have run audio before under the same setup
with a macromedia flash app in windows explorer without difficulties on
another remote classroom type system without a problem. Of course they
don't support macs natively, and have no plans to, although the techies
at my school (which I also have hunting down this problem) claim that
it should work ok.

Re: virtual pc performance issues on powerbook 1.67 w/ 1.5 GB RAM

Sent: 01/19/2006
From: "Paul Power" <(email address - cut out)>
Message:

I would think that the major issue here would VPC's ability to handle
Streaming Video and Audio. At the very best, it would be very poor and
practically useless. Reducing the allocation of RAM to 192MB is, IMO,
not wise. You need at least 128MB of RAM to run Windows XP SP2. That
leaves you 64MB of RAM for Windows applications. Not enough. Boost the
RAM to 384MB. Beyond that degrades the performance of VPC. Leave the
VRAM at 4MB and see if that helps (but don't get your hopes up).

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