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Computer tick-handling capability



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I use a DDE program to feed 1 of the tradestation machines.
It collects data on about 300 symbols.
Quite a few symbols are in the 30,000 to 50,000 tick range per day.
My problem is that the data vendor's program seems to be crashing during
periods of high volume (at the open and close of the session).

I'm trying to narrow down the culprit of the crashes (could it just be too
much data being processed)?

I remember a while back something about a Pacific commport adapter card?
Is this something that would be helpful is resolving issues of too much
data/data bottling up somewhere?

When the machine crashes, it emits 1 single "beeeeep" roughly every minute.

Any help is appreciated.
Thanks.