M A R A T H O N 3 4 0 SEAGATE ------+-----+-----+----- Form 2.5"/SUPERSLIMLINE Cylinders | 934| | Capacity form/unform 340/ MB Heads | 14| | Seek time / track 16.0/ 5.0 ms Sector/track | 51| | Controller IDE / ATA2 FAST/ENHA Precompensation Cache/Buffer 120 KB ADAPTIVE Landing Zone Data transfer rate 3.000 MB/S int Bytes/Sector 512 13.300 MB/S ext DMA Recording method RLL 1/7 operating | non-operating -------------+-------------- Supply voltage 5 V Temperature *C 5 55 | -40 70 Power: sleep 0.3 W Humidity % | standby 0.3 W Altitude km | idle 1.0 W Shock g 100 | 200 seek 1.9 W Rotation RPM 3980 read/write 2.0 W Acoustic dBA spin-up W ECC Bit MTBF h 300000 Warranty Month 24 Lift/Lock/Park YES Certificates ********************************************************************** L A Y O U T ********************************************************************** SEAGATE ST9655AG ST9550AG ST9385AG INSTALLATION GUIDE 36286-001, REV.A 10/94 +---------------------------------------------------------+ | |XX | |XXI | |XXN | |XXT | |XXE | |XXR | |XXF | |XXA | |XXC | |XXE | |XX | |XX | |XX | | 1 | |XXJumper +---------------------------------------------------------+ ********************************************************************** J U M P E R S ********************************************************************** SEAGATE ST9655AG ST9550AG ST9385AG INSTALLATION GUIDE 36286-001, REV.A 10/94 Jumper Setting ============== +--+ +Jumper--------Interface-----------------------------+ +--+ | +--+Bo oD o o o o o o o o o o o o o o o o o o o o o +--+ | | | |Ao oC 1 o o o o o o o o o o o o o o o o o o o o o | | | | | +--+-------------------------------------------------+ | | | +-----+----------------------------------------------------+ | +--------+-------------------------------------------------------+ | o o Drive is master; slave may be detected using DASP- o o signal o X Drive is master; Seagate slave drive present o X X o Drive is slave; Seagate master drive present X o X X Use CSEL pin grounding to differate master from slave X X Install master/slave jumpers ---------------------------- In a two-drive system, you need to designate one drive as the master, or drive 0, and the other drive as the slave, or drive 1. In a one- drive system, configure the drive as a master (no jumpers installed). Alternatively, you can configure the drive as a master or slave using the cable select option. To use this option, the host system and both drives must support cable select. Cable selection requires a special daisy-chain cable that grounds pin 28 (CSEL) on one of its two drive connectors. If you attach the drive to the grounded CSEL connector, it becomes a master. If you attach the drive to the ungrounded CSEL connector, it becomes a slave. To configure an ST9655 family drive for cable select, install both master/slave jumpers. ********************************************************************** I N S T A L L ********************************************************************** SEAGATE ST9655AG ST9550AG ST9385AG INSTALLATION GUIDE 36286-001, REV.A 10/94 Notes On Installation ===================== Mounting the drive ------------------ Mount the drive securely in the computer using M3X0.5 metric screws in the four bottom mounting holes or the four side mounting holes. You can mount the drive in any orientation. Be careful not to strain or crimp the interface/power cable. Caution To prevent damage to the drive: - Be careful not to bend the drive connector pins, especially when plugging the drive into a fixed connector. - Use mounting screws of the correct size and length. - Gently tighten the mounting screws_do not apply more than 3 inch-pounds of torque. - Do not insert mounting screws more than 0.15 inch. NOTE This drive meets industry-standard MCC mounting specifications. When installing this drive in a fixed-mounting application, you must use MCC-compatible connectors and mounting hardware. If the mounting holes in your computer do not line up with the mounting holes on the drive, your computer may not be MCC-compatible. Attaching cables ---------------- This drive is designed for a host computer that supplies interface signals and +5V power through a single 44-pin connector and cable. ********************************************************************** F E A T U R E S ********************************************************************** SEAGATE ST9655AG ST9550AG ST9385AG INSTALLATION GUIDE 36286-001, REV.A 10/94 Configuring your computer ------------------------- Before your computer can recognize a new drive, you must enter basic information about the drive into the computer's longterm memory (usually a battery-powered CMOS chip). The computer's basic input/ output system (BIOS) uses this information to control the flow of data to and from the drive. NOTE Some newer computers can automatically determine your drive type and configure themselves appropriately at startup. Read your system manual to determine whether this applies to your computer. If your computer cannot automatically determine your drive type, you must run a system setup program to specify the number of cylinders, heads and sectors for each drive in your system. The table below lists cylinder, head and sector information for the ST9655 family drives. +-----------------------+----------+----------+----------+ |Drive specification |ST9655AG |ST9550AG |ST9385AG | +-----------------------+----------+----------+----------+ |No. cylinders | 1,016 | 942 | 934 | +-----------------------+----------+----------+----------+ |No. read/write heads | 16 | 16 | 14 | +-----------------------+----------+----------+----------+ |No. sectors per track | 63 | 59 | 51 | +-----------------------+----------+----------+----------+ |Total no. sectors | 1,024,128| 889,248| 666,876 | +-----------------------+----------+----------+----------+ |Bytes per sector | 512 | 512 | 512 | +-----------------------+----------+----------+----------+ |Capacity (Mbytes) | | | | | BIOS calculated | 499 | 434 | 325 | | Usable | 524 | 455 | 341 | +-----------------------+----------+----------+----------+