Richard, Filiberto, Jim, Dave:

This week we have installed the modified 18bit DAC cards in most H1 Suspension IO Chassis. All suspension systems have been upgraded except for h1sush56 (we have exhausted the first batch of cards).

Full list of systems which use 18bit DACs which are not presently upgraded:

• h1sush56
• h1oaf0
• h1iscex
• h1iscey
• h1pemmmx
• h1pemmy

We have four modified cards which are showing errors and need further investigation:

• SN101208-05  Does not autocal
• SN101208-44  Stuck output voltage (was pulled from h1sush2a this morning)
• SN110425-19  Suspected bad capacitor on solder side, marked by Manufacturing Services
• SN101208-59  FE code failed to run when this card was installed in h1susex