with a flat or missing battery, it can be turned on for a few seconds, then turned off for a second then on again. This leaves enough charge in the system's capacitors for video to start up. Power supply: 30 watts standard, but many second-hand machines come with replacement PSUs, either third-party, Apple replacement, or stripped from earlier LC models. Some of these go up to 45 watts. The Quadra 605 is a registered Energy Star-Compliant product. Weight: 8.8 lb / 4 kg standard. A Quadra 605 can support a monitor up to 35 lb / 15.9 kg. Dimensions: 2.9" high × 12.2" wide × 15.3" deep / 7.4 cm high × 31 cm wide × 38.8 cm deep. Expansion The Quadra 605 contains one LC III-style 68030-compatible LC Processor Direct Slot. While this is mechanically compatible with previous models' LC PDS (it will take 96-pin or 114-pin LC PDS slot cards) it is not a true LC PDS, but emulates the previous machine's 68030 slot. Due to the success of the LC PDS in earlier Macs and with many expansion options already manufactured, Apple kept the same slot type in these 68040 machines. While the Quadra 605's LC PDS is mostly 68030-compatible, expansion cards made specifically for '030 processors, such as 68881 or 68882 FPUs, will not work. In addition it can utilize the Apple IIe Card, which allows the 605 to emulate an Apple IIe. The Quadra 605 has one SCSI bus, with a 50-pin internal connector (with space for one low-profile 3.5" SCSI device) and one 25-pin DB25F external connector. SCSI is provided by an NCR 53C96 controller, which can achieve 6 MB/s internally with a fast enough drive, or 4 MB/s externally. Two serial ports are provided on a Quadra 605; one 8-pin Mini-DIN printer port and one 9-pin Mini-DIN modem port similar to the printer port, but with an extra pin to supply +5 V power from the ADB power supply. Apple recommends no more than 100 mA should be drawn from this pin. The Quadra 605, like most other Macintoshes manufactured before 1999, includes an Apple Desktop Bus port for use with a keyboard and mouse or other low-speed, low-power peripherals. Some earlier models also contain a ROM SIMM socket, located just to the left of the VRAM. No SIMMs were made for this slot, and most boards only contain the solder pads indicating