SEAGATE TECHNOLOGY, INC. 1-800-SEAGATE http://www.seagate.com (C)opyright 1996 ST-34250A (Medalist Pro 4250 AT) ÉÍÍÍÍÍÍÍÍÍÍÍ» º REAR VIEW º ÈÍÍÍÍÍÍÍÍÍÍͼ 40 pin I/O Cable Connection ³ J1 ÕÍÍÍÍÍÍÍÍÍ ÍÍÍÍÍÍÍÍ͸ /ÄÄÄÄÄÄÄÄÄ\ TOP (HDA) ÍÍÍÍÍ͵::::::::::ú::::::::1Æͳ 0 0 0 0 ³ÍÍ ÔÍÍÍÍÍÍÍÍÍͳÍÍÍÍÍÍÍÍ; ÀÄ5ÄGÄGÄ12Ù BOTTOM ³ ÀÄÄÄ pin-20 removed ST-34250A ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ» º Front View º ÈÍÍÍÍÍÍÍÍÍÍÍÍÍͼ Slave drive ON (OFF for Master) ÄÄÄÄÄÄ¿ Slave Present (used on Master) ÄÄÄÄ¿ ³ Master/Slave timing protocol causes Master ÄÄÂÄ´ ³ drive to wait up to 31 seconds for slave ³ ³ ³ (TOP) to respond. Must be used with pins 3-4 ³ ³ ³ ³ ³ ³ o o o o1 Option Block ÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍo o o o2ÍÍ ³ ³ (BOTTOM) Cable Select ÄÄÄÄÄÙ ³ Spare jumper stored on pins 2-4 ÄÄÄÄÄÄÄÄÄÄÙ ST-34250A Medalist Pro 4250 FORMATTED CAPACITY _______________________4265.01 ACTUATOR TYPE ____________________________VOICE COIL CYLINDERS __PHYSICAL______________________ HEADS ______PHYSICAL______________________10 DISCS (3.5 in) ___________________________5 MEDIA TYPE _______________________________THIN FILM HEAD TYPE ________________________________MR RECORDING METHOD _________________________ZBR PRML (8/9), PR4 INTERNAL TRANSFER RATE (Mbits/sec) _______52.9 to 87.6 EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6 PIO MODE _________________________________4 DMA SUPPORT ______________________________EISA Type B SPINDLE SPEED (RPM) ______________________5,376 AVERAGE LATENCY (mSEC) ___________________5.58 BUFFER ___________________________________128 Kbyte SeaCache Read/Write Multiple, Read Look-Ahead, Multi-Segmented INTERFACE ________________________________ATA SECTORS PER DRIVE (LBA mode) _____________8,346,300 TPI (TRACKS PER INCH) ____________________5,555 BPI (KBITS PER INCH) _____________________112.4 AVERAGE ACCESS (ms) ______________________10.5 SINGLE TRACK SEEK (ms) ___________________2.0 MAX FULL SEEK (ms) _______________________20 MTBF (power-on hours) Office _____________500,000 SHOCK (G's): operating (Read/Write) __________2 abnormal ________________________5 nonoperating ____________________75 ACOUSTICS (bels) (typ/max) _______________4.1/4.9 POWER DISSIPATION (watts) ________________ POWER REQUIREMENTS: +12V START-UP (amps) _1.8 POWER MANAGEMENT (Watts): ACTIVE _______________9.2 IDLE _________________7.2 STANDBY ______________1.0 WRITE PRECOMP (cyl) ______________________N/A REDUCED WRITE CURRENT (cyl) ______________N/A LANDING ZONE (cyl) _______________________AUTO IBM AT DRIVE TYPE ________________________* Physical: Height (inches/mm): 1.02/25.4 Width (inches/mm): 4.02/102.1 Depth (inches/mm): 5.78/146.6 Weight (lbs/kg): 1.5/0.68 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE. ALSO, CHECK TO SEE IF YOUR CMOS SETUP HAS AN "AUTO", "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE. (see below) Possible translations: This translation is generally acceptable, as is, for non-DOS operating systems: 8264 cyl, 16 heads, 63 sectors = 4,265,017,344 DOS operating systems may require a translation that uses larger values for the CMOS head parameter which lowers cylinders below 1024: 516 cyl, 256 heads, 63 sectors = 4,260,888,576 Other FULL-CAPACITY solutions for DOS operating systems include third-party drive preparation software, system BIOS which supports LBA mode or bios driven host adapters. Otherwise, capacity may be limited to: 1024 cyl, 16 heads, 63 sectors = 528,482,304 Some systems BIOS have capacity limitations. Types that have been identified are: a 2.113GB or 4095 cylinder limitation a 3.262GB or 6322 cylinder limitation and, if exceeded, may cause the system to fail or lock up during POST with auto-detect options set in the CMOS. 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 ZBR = Zone Bit Recording = Variable sectors per track 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. Seagate reserves the right to change, without notice, product offerings or specifications. (09/09/96)