SEAGATE TECHNOLOGY, INC. Technical Support Bulletin Board 408/438-8771 [300-9600 HST, MNP 3/5, N-8-1] (C)opyright 1990 ST-4144R /Ä4Ä3Ä2Ä1Ä\ ³ O O O O ³ Power ÀÄÄÄÄÄÄÄÄÄÙ ÚData Cable ÚController Cable 1 5 G G 12 ÍÍÍÍÍÍÍÍÍ ÍÍ ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍÍ ÍÍÍÍÍÍÍÍÍÍÍÍ o o o o o o o o 1ÄÄÄÄÄÄÄÄÄÄÄÄ¿ o o o o o o o o ÀÄÄÄÄÄÄÄÄÄÄÄÄÙ Drive Select->1 2 3 4 ³ ³ ³ ³ ÀResistor Termination Pack ³ ³ ³ ³ ³ ³ ³ ³ ÀÂÙ ³ ³ ³ ³ ³ ³ ³ ³ ³ À Radial ³ ³ ³ ³ ÀÄÄ Recovery Mode ³ ³ ³ ÀÄÄÄÄ Write Fault ³ ³ ÀÄÄÄÄÄÄ Not Connected ³ ÀÄÄÄÄÄÄÄÄÄ Never Used (Drive Select 3 and 4) À If twisted cable, use Drive Select 2 ST - 4144R UNFORMATTED CAPACITY (MB) ________________144.0 FORMATTED CAPACITY (26 SECTORS) (MB) _____122.7 ACTUATOR TYPE ____________________________VOICE COIL TRACKS ___________________________________9,216 CYLINDERS ________________________________1,024 HEADS ____________________________________9 DISCS ____________________________________5 MEDIA TYPE _______________________________THIN FILM RECORDING METHOD _________________________RLL TRANSFER RATE (mbits/sec) ________________7.5 INTERFACE ________________________________ST412 TPI (TRACKS PER INCH) ____________________1,031 BPI (BITS PER INCH) ______________________14,688 AVERAGE ACCESS (ms) ______________________28 SINGLE TRACK SEEK (ms) ___________________6 MTBF (power-on hours) ____________________40,000 POWER REQUIREMENTS: +12V START-UP (amps) _4.0 +12V TYPICAL (amps) __1.3 +5V TYPICAL (amps) ___1.3 TYPICAL (watts) ______23 MAXIMUM (watts) ______55 BUFFERED STEP PULSE RATE (micro sec) _____3-70 WRITE PRECOMP (cyl) ______________________N/A (1025) REDUCED WRITE CURRENT (cyl) ______________N/A (1025) LANDING ZONE (cyl)________________________AUTO PARK IBM AT DRIVE TYPE ________________________* * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING AND PARTITIONING SOFTWARE. ALSO, CHECK TO SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE. Seagate reserves the right to change, without notice, product offerings or specifications. (6/26/90)