SEAGATE TECHNOLOGY, INC. Customer Technical Support FAX Network +1 408 438-8137 Customer Technical Support Bulletin Boards (300-9600, 8-N-1) 旼컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컫컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴커 � United States +1 408 438-8771 � United Kingdom +44 628 478011 � 쳐컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴캑 � Germany +49 89 140-9331 � Singapore +65 227-2217 � 읕컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컨컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴켸 (C)opyright 1991 ST-1239A (94354-239 or 230) Swift AT (IDE) 旼컴\ � 0 � 5 � 0 � G 旼� Some have � 0 � G AT (IDE) Cable � 쳐 these pins � 0 � 12 1�........................� o o o o o(o o) 6 is OFF 읕컴/ ........................ o o o o o(o o) 7 is ON 袴袴袴�P�W�A袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴� 1 2 3 4 5 6 7 ON OFF � � � � � 읓� 1 Slave Master 컴� � � � � � 2 5 Heads 7/9 Heads 컴컴� � � � � 3 Slave installed Slave not inst. 컴컴컴� � � � 4 7 byte ECC 4 byte ECC 컴컴컴컴� � � 5 Factory test Normal Oper. 컴컴컴컴컴� � 6/7 Some PWA's have these pins, factory use 컴컴컴켸 SWIFT Shrouded AT Interface Connector Only 旼컴\ � 0 � 5 旼 If the AT Connector has a plastic shroud, note pin-1 � 0 � G � � Pin-20 missing for keying purposes � 0 � G � � � 0 � 12 郞袴袴袴袴妄袴袴袴袴拷 o o o . o o 읕컴/ �:::::::::�:::::::::1� o o o . o o (Note: 8-pin jumper 袴袴P�W�A賈袴袴袴袴袴袴袴袴袴袴鳩袴袴袴袴袴袴袴袴 block on side of 1 2 3 4 5 6 drive for factory ON OFF � � � � � � use only.) 1 Slave Master 컴� � � � � � 2 Slave installed Slave not inst. 컴컴� � � � � 3 SPSYNC (spindle sync) on Pin-28 컴컴컴컴켸 � � � 4 (pins removed) 컴컴컴컴컴컴컴컴컴컴컴컴컴컴� � � 5 Spare 컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴켸 � 6 SPSYNC External Connection 컴컴컴컴컴컴컴컴컴컴� ST-1239A 94354-239 or 230 Swift UNFORMATTED CAPACITY (MB) ________________239 FORMATTED CAPACITY (36 SECTORS) (MB) _____211 ACTUATOR TYPE ____________________________VOICE COIL TRACKS ___________________________________11,448 CYLINDERS ________________________________1,272 HEADS ____________________________________9 DISCS ____________________________________5 MEDIA TYPE _______________________________THIN FILM RECORDING METHOD _________________________RLL (2,7) TRANSFER RATE (mbytes/sec) _______________1.25 SPINDLE SPEED (RPM) ______________________3,600 AVERAGE LATENCY (mSEC) ___________________8.33 BUFFER ___________________________________32 or 64 Kbyte Read Look-Ahead, Non-Adaptive, Single-Segmented INTERFACE ________________________________AT BUS SECTORS PER DRIVE ________________________412,128 TPI (TRACKS PER INCH) ____________________1,543 BPI (BITS PER INCH) ______________________28,103 AVERAGE ACCESS (ms) ______________________15 SINGLE TRACK SEEK (ms) ___________________4 MAX FULL SEEK (ms) _______________________35 MTBF (power-on hours) ____________________150,000 POWER REQUIREMENTS: +12V START-UP (amps) _2.5 +12V TYPICAL (amps) __0.7 +5V START-UP (amps) __0.75 +5V TYPICAL (amps) ___0.4 TYPICAL (watts) ______11 MAXIMUM (watts) ______33.75 BUFFERED STEP PULSE RATE (micro sec) _____6-200 WRITE PRECOMP (cyl) ______________________N/A REDUCED WRITE CURRENT (cyl) ______________N/A LANDING ZONE (cyl) _______________________AUTO PARK IBM AT DRIVE TYPE ________________________* * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE. ALSO, CHECK TO SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE. Possible Translation: 954 cyl, 12 heads, 36 sectors = 211,009,536 Possible Translation: 817 cyl, 14 heads, 36 sectors = 210,825,216 Possible Translation: 990 cyl, 16 heads, 26 sectors = 210,862,080 Note: A "custom" or "user-definded" CMOS drivetype may ask for a numerical value for the Write Precompensation cylinder and for the Landing Zone cylinder. A basic rule-of-thumb for drive models that do not require the old Write Precomp technique or a Landing Zone because they are Auto-Parking is to add 1 to the cylinder value being used. As an example: If cylinders equaled 820, then both Write Precomp and Landing Zone would be entered as 821. Some BIOS will convert this to 65535 or -1, which are functionally equivalent to "none (not used)". PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION Already low-level formatted at the factory. Since a User-definable or Custom translation geometry may be used, it is imperative that the values be written down and kept with your permanent records for retrieval in the event of CMOS battery failure. Swift Remote LED Option Front View of Drive Without the Plastic Bezel 旼컴쩡컴� � A � B � B = Anode 쳐컴탠컴� D = Cathode � C � D � ...袴袴袴袴袴袴袴袴賈袴賈袴賈袴袴�P�W�A袴�... � Default jumper at C-D for LED mounted on drive PWA � To use remote LED, remove jumper and extend B (Anode) and D (Cathode). � Swift LED kit 75912397 allows connection to a remote LED � Swift LED kit 95913369 has an LED for attachment to the system front bezel or a 5.25-inch frame kit Seagate reserves the right to change, without notice, product offerings or specifications. (6/26/90)