Compaq.com - Compaq Presario Maintenance and Service Guide - 3500 Series
United States December 9, 2002
Maintenance & Service Guide
Presario 3500 Series Personal Computers
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Specifications
Compaq Presario 3500 Series Personal Computer specifications are listed in the following tables.
Select the specification you are interested in from the alphabetical list.
CD-RW Drive Mouse System Interrupts
Diskette Drive Power Supply System Memory
IDE Hard Drives Speakers System Specifications
Fax/Modem System DMA
Monitor System I/O
Speakers
System response
50Hz-20kHz
Max SPL
97dB @ 0.5 meters
Amp and EQ specs.
Subwoofer (50 Hz - 200 Hz), Active cross-over
Subsonic filter (High Pass) : 40 Hz 18 dB/octave
Low-pass filter: 200 Hz 18 dB/octave
Mid-range (200 Hz - 1500 Hz) , Active cross-over
High-pass: 200 Hz , 18 dB/octave
Low-pass: 1500 Hz , 18 dB/octave
Tweeter (1500 Hz - 20 kHz), Active cross-over
High-pass: 1500 Hz , 18 dB/octave
Power rating
Subwoofer ( 17 Watts), Mid-range (2 x 8.5 Watts),
Tweeter (2x 8.5 Watts)
Power ratings are at < 10% THD.
S/N ratio @ 1kHz
90dB
Cross-talk measured @ 1kHz
-48dB
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System Memory
Size Low Address High Address System Function
640 KB 00000000 0009FFFF System board extension for ACPI
BIOS
128 KB 000A0000 000BFFFF Video RAM
32 KB 000C0000 000C7FFF Video ROM
4 KB 000C8000 000C8FFF unused
24 KB 000CA000 000CFFFF System board extension for ACPI
BIOS
16 KB 000E8000 000EBFFF unused
64 KB 000F0000 000FFFFF System board extension for ACPI
BIOS
62 MB 00100000 03EFFFFF System board extension for ACPI
BIOS
64.5 MB E0000000 E407FFFF Intel 810 chipset graphics driver
512 KB FFB80000 FFBFFFFF Intel 82802 Firmware Hub Device
1 MB FFF00000 FFFFFFFF System board extension for ACPI
BIOS
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System DMA
Default DMA Function Alternative Mapping Device
DMA0 PCI Audio Emulation
DMA1 Audio 0, 1, 3, Disabled PCI Audio Emulation
DMA2 Floppy Controller N/A Super I/O
DMA3 ECP Super I/O
DMA4 Internal Cascade N/A ICHO
DMA5 Available ICHO
DMA6 Available 0, 3, 7, Disabled ICHO Bridge
DMA7 Available 0, 3, 6, Disabled ICHO Bridge
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Power Supply
Model Name MPU-85R
DC Characteristics
+5V +12V -12V +5Vsb Note
Continuous current (min.) 1.5A 0.24A 0.0A 0.0A
Continuous current
(max.)
11.5A 1.7A 0.12A 1.0A
Peak Load 13.5A 2.5A -- -- *, **
Ripple & Noise max. 50mv 150mv 150mv 80mv ***
Regulation +/-5% +/-8% +/-10% +/-5% ***
Over Voltage Protection 7V 15.5V -- --
Short Circuit Protection Yes Yes Yes Yes
DC Power on Rise Time <100ms <100ms -- <100ms full load
Hold-up Time (min.) 16ms 16ms -- 16ms 115Vac/full
load
Overshoot 5.5V 13.2V -13.2V 5.5V
* +12V output tolerance is allowed +/-10% between Ipeak.
** +5V/13.5V, +12V/1.7A -- 2 sec duration. +5V/11.5A, +12V/2.5A -- 2 sec
duration.
*** The ripple and regulation shall be maintained for all combinations of min.
and max. current on both DC voltages at min. and max. AC input voltage and
min. and max. DC voltage.
AC Characteristics
Min. Max. Note
Input Voltage 90 VAC 264 VAC Universal
Input Line Frequency 47 HZ 63 HZ
Inrush Current N/A *
Efficiency N/A **
* The power supply inrush current must be limited to 80A when operated at
220Vac under ambient temperature 25 degree C, with the tested unit
temperature stabilized in the power-off condition until at ambient temperature.
** 64% (min.) at full load, 115 Vac 60Hz
Model Name UM08514010
Input AC Voltage
Minimun Nominal Maximun
90 V 115V/230V 264V
Input AC Frequency
47 HZ ~ 63 HZ
Input AC Current
2.8A (max.) at 115V
DC Load Requirements
Output
Voltage
Tolerance Output Current
Minimum Maximun Peak
+5V +5%/-5% 1.5A 11.5A 15A
+12V +8%/-8% 0.3A 1.7A 2.5A
-12V +10%/-10% 0A 0.12A ----
+5V
(stand by)
+5%/-5% 0A 1.0A ----
Ripple Voltage and
Noise
Differential ripple and noise at the power supply
output shall be as shown below when measured under
constant load of at least 85 watts with an oscilloscope
with a bandwidth of 20 MHz.
Output Voltage Maximum Peak to Peak Ripple and Noise
+5V 50mV
+12V 150mV
-12V 150mV
+5V (stand by) 80mV
Overvoltage Trip Point Windows
Output Level Minimum Maximum
+5V ---- +7V
+12V ---- +15.5V
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Diskette Drive
Diskettes
Size (in) 3.5 (8.89 cm)
High Density (MB) 1.44
Low Density (KB) 720
Light
Green
Height
One-third
Bytes per Sector
512
Sectors per Track
High Density 18
Low Density 9
Tracks per Side
High Density 80
Low Density 80
Read/Write Heads
2
Average Seek Time (ms)
Track-to-Track 3
Average 94
Settling Time 15
Latency Average 100
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