PlanetZ forums - scopeusers.com

Hi,

could anyone please give me a hint how to determine the hardware version of a SCOPE Pro board? Does it depend on the number of DSP's (15 = always type I, 14 = type II), or maybe the date it was manufactured? Are there any obvious differences between type I and type II boards like a capacitor (or something else) in a certain position?

How much does it affect latency when I add a type I Pro board to my type II Pro board? Currently I run my system at 3ms. Are there any other negative side effects?

Regards,
Chris

the only side effect (according to results in the Masterverb test thread) is about 20% PCI bandwidth less than with type 2 boards only.
That means (f.e.) 12 instead of 15 Masterverbs.
As you wouldn't use that much instances anyway it shouldn't be overestimated.
It may become a concern if you plan to use the STW A100 plus P100 (possibly several instances) plus a bunch of delays and 64 Asio channels and 200 MB of STS samples in one project.
Then you should avoid generation one boards

It affects only the PCI data transfer, latency and dsp performance is not altered

a generation one card can only have 4 or 15 DSPs, all other cards are generation two, which leaves only the 15 DSP Scope cards as dubious candidates.
Imho you can only test a card in question, as the IO plate of the 2nd generation cards obviously fits (at least on some) old 15 DSP boards which are generation one for sure.
The test is to have the card as the 'first' (or only) card installed and try to set latency below 13 ms at 44.1k - this will procduce an error for a generation one card. If it accepts the lower latency, then it's generation two.
Not many first generation cards were sold with 15 DSPs because they were extremely expensive.

cheers, Tom

astroman,

thank you for your quick and competent reply.

Gruß,
Chris