That does not only count for sports-prestations, but also for your (eurorack modular) analog synthesizer.
|2 Doepfer VCOs that could use a good warm up|
If you don't give it that amount of time, the tuning can/will probably be (slightly) off.
To be clear, it's not a question of the "A-100" warming up, but of the modules installed.
In some cases, the warm-up period of a module is mentioned in the manual or on the web-page of the module in question.
Especially VCOs like A-110, A-111-1, A-111-5, A-143-4 need a warming-up to become stable and reliable.
If no warm-up period is mentioned the VCO is stable very soon (like the CEM3340-based A-111-1).
The PSU type (Doepfer power supply I or II) has no influence.