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IBM OEM STORAGE PRODUCTS
DPEA-30540, DPEA-30810 & DPEA-31080
IBM introduced a range of disk drives for the desktop personal computer marketplace.
Available in four popular capacity points with AT interface, the drive provided excellent
performance and improved reliability.
Applications
* Desktop personal computers
* Low end file servers
Features Benefits
* 528, 541, 812 and 1083MB formatted * Generic range of popular storage capacities
capacity (512 byte/sector)
* PIO data transfer - mode 3 * Fast interface data rate (max 11.1 MB/s)
* DMA data transfer * Excellent performance on long records
- Single word: mode 2 (max 8.3 MB/s)
- Multiword: mode 1 (max 11.1 MB/s)
* Average seek time 10.5ms (Read) * Fast access to data
* 4500 RPM
* 448KB adaptive sector buffer * Fast data retrieval in single and multi-tasking
* Read ahead caching of LFU (Least applications
Frequently Used) cache algorithm
* Industry standard mounting * Ease of installation
* The drive can be mounted with any
of its six surfaces facing down
* Advanced ECC implementation * Improved data throughput
* CHS and LBA addressing modes * Flexibility to support most appropriate addressing
* Power saving modes * Reduced power consumption
* Robust design for EMC/RFI * Easy integration across multiple platforms
* MR (Magneto Resistive) head * High area density, low technology component
count
* No sector ID format * More data stored per track, increased sustained
data transfer rate
* MTBF 350,000 hours * Assured reliability
Connectors
PIN 1
Power AT I/F Power
Connector Connector Connector
PIN 2
Power
Connector
JP7
Option Block
JP1 Back Side of Drive
AT I/F
Connector
Logic Card
Power
Connector
There is a choice of 2 power connections to this drive. One DC power connector is designed to
mate with AMP part 1-480424 (using AMP pins P/N 350078-4). The other (3 pin) DC power
connector is designed to mate with MOLEX 5480-03 (using MOLEX pins 5479). Equivalent
connectors may be used. Pin assignments are shown below, as viewed from the end of the drive.
1 2 3 Pin# 1 2 3 4
+5V +12V GND +5V GND GND +12V
AT Signal Connector
The drive uses single-ended drivers and receivers. The connector is designed to mate with 3M
part 3417-7000 or equivalent.
Note:
It is intended that the hard disk drive should only be in electrical contact with the chassis of the
PC at a designated set of mounting holes. Other electrical contact may degrade error rate
performance. As a result of this, it is recommended that there should be no metal contact to the
hard disk drive except at the mounting holes or the side rails into which the mounting holes are
tapped.
Option Block
Jumper Settings
Jumpers may be fitted to select the following options:
Pin Numbers
MASTER active 1-2
SLAVE active 3-4
Cable sel 5-6
Write cache 9-10 (Disabled with jumper)
Auto re-allocation 11-12 (Disabled with jumper)
541/528 MB selection 13-14 (541MB with jumper)
JP1 JP2 JP3 JP4 JP5 JP6 JP7
1 3 5 7 9 11 13
2 4 6 8 10 12 14
Auto Reallocation Jumper
Auto reallocation jumper is checked during the initial power on reset (POR) check. Write cache
is disabled when a jumper is fitted. (+) Auto reallocation jumper position needs to be OPEN
when a user system wants to use write cache.
Note:
Auto reallocation only operates, and is mandatory, during write cache operations. Disabling
either function by jumper disables both.
Write Cache Jumper
Write cache jumper is checked during the initial POR check.
Write cache is disabled when a jumper is fitted.
528/541MB Selection
A jumper for JP7 has a meaning only when the model is DPEA-30540. A jumper for the JP7 is
used to select 541MB, ie. when the jumper is removed, DPEA-30540 is set to 528MB. This
jumper has no meaning for DPEA-30810 and DPEA-31080.
Shipping Default Settings
MASTER is set to on (ie jumper on pins 1-2), 541MB capacity set. No other jumpers are fitted.
Note:
The jumper positions JP1, JP2, JP3 must not be selected concurrently.
Operating Environment
Operating Conditions
Temperature 5 to 55 degrees C*
Relative Humidity 8 to 90% non-condensing
Maximum Wet Bulb
Temperature 29.4 degrees C non-condensing
Maximum Temperature
Gradient 15 degrees C/Hour
Altitude -300 to 3000m
Non-Operating Conditions
Temperature -40 to 65 degrees C
Relative Humidity 5 to 95% non-condensing
Maximum Wet Bulb
Temperature 35 degrees C non-condensing
Altitude -300 to 12,000m
Note *:
The system is responsible to provide sufficient air movement to maintain surface temperature
below 60 degrees C at the center of top cover of the drive.
Operating shock
The drive meets the following criteria:- No data loss, seek errors, or permanent damages within
Read modes within shock pulses of 30G 4ms, or 15G 5ms half-sine wave. The shock pulses of
each level are applied to the drive, five pulses in each direction in all three axes. There must be a
minimum of a 3 second delay between each shock pulse. The input level is applied to the base
plate where the drive is attached with four screws.
Non-Operating Shock
The drive withstands without damage or degradation of performance, a 75G half-sine wave shock
pulse of 11ms duration on six sides when heads are parked. (When the power is not applied to
the unit, the heads are automatically located on the parked position.) All shock are applied in
each direction of the drive three mutually perpendicular axes, one axis at a time. Input levels are
measured at the frame of the hard disk drive.
Operating Vibration
Due to the complexity of this subject, we recommend that users contact the IBM technical
support group representative to discuss how to perform the necessary measurements if they
believe this to be an area which requires evaluation.
DC Power Requirements
The following voltage specifications apply at the drive power connector. Damage to the drive
electronics may result if the power supply cable is connected or disconnected while power is being
applied to the drive (No hot plug/unplug is allowed). There are inductive loads in the drive which
could cause destructively high voltage spikes on the drive if the power connection is opened.
There is no special power on/off sequencing required.
Nominal Supply Voltages +5 Volts +12 Volts
Maximum Ripple (0-10 MHz) 100mV p-p 150mV p-p *2
Voltage Supply Tolerance (incl. ripple) +/-5% +10%/-8% *3
Power Supply Current (Amps) (Populated Mean)
Idle (average) 0.26 0.12/0.16 (A/B *1)
R/W (average) 0.62 0.24/0.28 (A/B *1)
Seek (average) 0.46 0.34/0.37 (A/B *1)
Standby 0.22 0.02
Start up (peak) 0.64 1.20
Notes:
*1 A/B shows that A is for DPEA-30540 and B is for DPEA-30810 and DPEA-31080.
*2 The maximum ripple is measured at input of the drive.
*3 the drive does not incur damage by an over-voltage condition of +25% and the maximum
duration of 20msec.
During the drive start up and seeking, 12 volt ripple is generated by the drive (referred to as
dynamic loading). If several drives have their power daisy chained together, then the power
supply ripple plus other drive's dynamic loading must remain within the regulation tolerance of
+10/-8%. A common supply with separate power leads to each drive is a more desirable method
of power distribution.
To prevent external electrical noise from interfering with the drive's performance, the drive must
be held by four screws in a user system frame which has no electrical level deference at the four
screws position, and has less than +/-300 millivolts peak to peak level deference to the drive
power connector ground.
Cabling
The maximum cable length from the Host system to the drive, plus the circuit pattern length inside
the Host systems, must not exceed 18 inches (45.7 cm).
Signal Definition
The pin assignments of interface signals are listed as follows:
PIN Signal I/O PIN Signal I/O
01 -HRESET I 02 GND
03 HD07 I/O 04 HD08 I/O
05 HD06 I/O 06 HD09 I/O
07 HD05 I/O 08 HD10 I/O
09 HD04 I/O 10 HD11 I/O
11 HD03 I/O 12 HD12 I/O
13 HD02 I/O 14 HD13 I/O
15 HD01 I/O 16 HD14 I/O
17 HD00 I/O 18 HD15 I/O
19 GND (20) Key
21 DMARQ O 22 GND
23 -HIOW I 24 GND
25 -HIOR I 26 GND
27 HIORDY O 28 CSEL I
29 -DMACK I 30 GND
31 HIRQ O 32 -HIOCS16 O
33 HA01 I 34 -PDIAG I/O
35 HA00 I 36 HA02 I
37 -HCSO I 38 -HCS1 I
39 -DASP I/O 40 GND
Note:
"O" designates an output from the Drive.
"I" designates an input to the Drive.
"I/O" designates an input/output common.
Interface
This data sheet describes some aspects of the host interface to ATA drives. The interface
conforms to the CAM draft proposal for an AT attachment with certain limitations described
below.
Automatic Power Down Sequence
A hard reset will disable the automatic power down sequence.
Format Track
A drive will not perform a physical format. Instead, it will simply write a data pattern of all zeros
to the sectors which have been specified by the Format Track command. LBA mode for format
track is not supported.
Format Track Interleave Factor
The drive only supports an interleave factor of 1:1, and may ignore any other specified interleave,
without returning an error.
Write long
Write long command should be executed for the same sector after Read long command execution.
Otherwise, unexpected ECC correctable error may occur, because of the limitation of the
emulation technique to support 4 byte ECC mode which is implemented in the drive.
Seek Overlap
The drive will wait for the seek to complete before interrupting the host. Therefore, no seek
overlap can occur. This will be transparent to the host except that performance may be degraded
in certain environments where the host could perform other work while waiting for seek
complete, such as multi-tasking operating systems.
Sleep mode
During Sleep mode the drive will be activated by any command, including, but not limited to, a
soft reset.
Drive/Head Register
Bits 5 and 7 of Drive/Head Register are not written to 0. (These 2 bits are always read as '1' even
after host writes to '0'...).
Data Organization
Logical Layout DPEA DPEA DPEA DPEA
-30540 -30540 -30810 -31080
(Clipped)
Number of Heads 16 16 16 16
Number of Sectors/Track 63 63 63 63
Number of Cylinders 1024 1050 1574 2100
Sector Size 512 512 512 512
Sector Number for default CHS1,032,192 1,058,400 1,586,592 2,116,800
Sector Number for LBA 1,058,496 1,058,496 1,586,664 2,116,992
Usable Bytes for default CHS 528MB 541MB 812MB 1083MB
Usable Bytes for LBA 541MB 541MB 812MB 1083MB
The following Commands are supported by the Drive:
Commands (HEX)
Check Power Mode (E5)
Execute Drive Diagnostics (90)
Format Track (50)
Identify Drive (EC)
Idle (E3)
Idle Immediate (E1)
Initialize Drive Parameters (91)
Read Buffer (E4)
Read DMA (retry) (C8)
Read DMA (no retry) (C9)
Read Long (retry) (22)
Read Long (no retry) (23)
Read Multiple (C4)
Read Sectors (retry) (20)
Read Sectors (no retry) (21)
Read Verify Sectors (retry) (40)
Read Verify Sectors (no retry) (41)
Recalibrate (1X)
Seek (7X)
Set Features (EF)
Set Multiple (C6)
Sleep (E6)
Standby (E2)
Standby Immediate (EO)
Write Buffer (E8)
Write DMA (retry) (CA)
Write DMA (no retry) (CB)
Write Long (retry) (32)
Write Long (no retry) (33)
Write Multiple (C5)
Write Sectors (retry) (30)
Write Sectors (no retry) (31)
Write Verify (3C)
Mechanical Data
Dimensions
Height 25.4+/-0.4mm
Width 101.6+/-0.4mm
Depth 146.0+/-0.6mm
Weight 530g maximum
Mounting Orientation
The Drive can be mounted in any axis (6 directions).
25.4+/-0.4
146 +/- 0.6
101.6 +/- 0.4
LEFT FRONT
(4X) UNC 6-32 2
Back Front
60.3 44.4
16
60
146
41.6
(6x) UNC 6-32 1 101.6
FRONT
The maximum allowable penetration of the mounting screws is (*1) 3.5mm (*2) 6mm.
The recommended mounting screw torque is 3+/-0.5[KgF.cm]
Registers
Address Input Register Output Register
1F0h Data Data
1F1h Error Features
1F2h Sector Count Sector Count
1F3h Sector Number Sector Number
*LBA bits 0-7 *LBA bits 0-7
1F4h Cylinder Low Cylinder Low
*LBA bits 8-15 *LBA bits 8-15
1F5h Cylinder High Cylinder High
*LBA bits 16-23 *LBA bits 16-23
1F6h Drive/Head Drive/Head
*LBA bits 24-27 *LBA bits 24-27
1F7h Status Command
3F6h Alternate Status Device Control
3F7h Drive Address Not Used
The host uses the register interface to communicate to and from the drive. The registers are
accessed through the host port addresses shown.
The host should not read or write any registers when the Status Register BSY bit = 1.
Note:
* Meaning of Register contents when LBA addressing mode used.
Electromagnetic Compatibility
The Drive meets the following EMC requirements when installed in the user system and exercised
with a random accessing routine at maximum data rate:
United States Federal Communication Commission (FCC) Rules and Regulations Part 15, Subject
J - Computer Devices "Class B Limits".
European Economic Community (EEC) directive #76/889 related to the control of radio
frequency interference and the Verband Deutscher Elektrotechniker (VDE) requirements of
Germany (GOP).
WARNING: This disk drive can be damaged by Electro-Static Discharge; please follow
recommended ESD procedures before unpacking or handling the drive. Ask your Dealer for
details if you need assistance.
PACKAGING: The drive must be protected against Electro-Static Discharge especially when
being handled. The safest way to avoid damage is to put the drive in an anti-static bag before
ESD wrist straps etc, are removed.
Drives should only be shipped in approved containers; severe damage can be caused to the drive if
the packaging does not adequately protect against the shock levels induced when a box is
dropped. Consult your IBM marketing representative if you do not have an approved shipping
container.
AMP is a trademark of AMP Incorporated.
Molex is a trademark of Molex Incorporated.
DATA MATE is a trademark of AMP Incorporated.
This data sheet is not a substitute for the full product specification, which should be used when
detailed information is required.
Product Description data represents IBM's design objectives and is provided for comparative
purposes; actual results may vary based on a variety of factors. This product data does not
constitute a warranty. Questions regarding IBM's warranty terms or methodology used to derive
this data should be referred to your IBM OEM representative. Data subject to change without
notice.
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