Maintenance &
Service Guide
Presario 2250 Series
2510, 2410 ES & 4240 ES Personal Computers
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Preface | Product
Description | Troubleshooting
| Illustrated Parts
| Removal & Replacement
Jumpers & Switches | Specifications | Connector
Pins | Power Cord Requirements
System Video Memory
Models: 2250 Series, 2410 ES, 2510
Video Memory |
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| Resolution | Colors | Vertical Refresh (Hz) |
| 1280 × 1024* | 256 | |
| 1024 × 768 | 64K | 75 |
| 800 × 600 (Default) | 64K | 75 |
| 640 × 480 | 64K | 75 |
| 1024 × 768 | 256 | 75 |
| 800 × 600 | 256 | 75 |
| 640 × 480 | 256 | 75 |
| *The 2254, 2255, 2510, 2410 ES Series Series high resolution of 1280 × 1024 × 256 can only be achieved if the monitor supports this resolution. | ||
System DMA
Models: 2250 Series, 2410 ES, 2510
System DMA |
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| Hardware | System Function (Default) | Alternate Mappings |
| DMA 0 | Available | |
| DMA 1 | Entertainment Audio | 0, 3, none |
| DMA 2 | Diskette Drive | None |
| DMA 3 | Available | |
| DMA 4 | Internally used for cascading | |
| DMA 5 | Entertainment Audio | 0, 1, none |
| DMA 6 | Available | |
| DMA 7 | Available | |
System Interrupts
Models: 2250 Series, 2410 ES, 2510
System Interrupts |
|
| Hardware IRQ | System Function |
| IRQ 0 | Refresh Timer |
| IRQ 1 | Keyboard |
| IRQ 2 | Interrupt Controller Cascade |
| IRQ 3 | Modem (COM 2) shared data/fax |
| IRQ 4 | Serial Port (COM 1) |
| IRQ 5 | System Audio* |
| IRQ 6 | Diskette Drive Controller |
| IRQ 7 | Parallel Port (LPT 1)* |
| IRQ 8 | Real-Time Clock |
| IRQ 9 | USB |
| IRQ 10 | Available |
| IRQ 11 | PCI Interrupt, Video, DVD |
| IRQ 12 | PS/2 Mouse |
| IRQ 13 | Numeric Coprocessor |
| IRQ 14 | Primary IDE Interface |
| IRQ 15 | Secondary IDE Interface |
System I/O
Models: 2250 Series, 2410 ES, 2510
System I/O |
|
| I/O Address (Hex) | System Function (Shipping Configuration) |
| 0000h - 000Fh | Direct Memory Access (DMA) Controller |
| 0020h - 0021h | Programmable Interrupt Controller |
| 0040h - 0043h | System Timer |
| 0060h - 0060h | Standard 101/102-Key or Microsoft Natural Keyboard |
| 0061h - 0061h | System Speaker |
| 0064h - 0064h | Standard 101/102-Key or Microsoft Natural Keyboard |
| 0070h - 0071h | System CMOS/Real Time Clock |
| 0080h - 0080h | Motherboard Resources |
| 0081h - 008Fh | Direct Memory Access (DMA) Controller |
| 00A0h - 00A1h | Programmable Interrupt Controller |
| 00C0h - 00DFh | Direct Memory Access (DMA) Controller |
| 00ECh - 00EFh | Motherboard Resources |
| 00F0h - 00FFh | Numeric Data Processor |
| 0170h - 0177h | Standard IDE/ESDI Hard Disk Controller |
| 01F0h - 01F7h | Standard IDE/ESDI Hard Disk Controller |
| 0201h - 0201h | Gameport Joystick |
| 0220h - 022Fh | XpressAUDIO 16-bit sound |
| 02F8h - 02FFh | Compaq 336-Dfi, 56K Upgradable Modem |
| 0330h - 0331h | XpressAUDIO 16-bit sound |
| 0376h - 0376h | Standard IDE/ESDI Hard Disk Controller |
| I/O Address (Hex) | System Function (Shipping Configuration) | |
| 0378h - 037Fh | Printer Port (LPT1) | |
| 0388h - 038Bh | XpressAUDIO 16-bit sound | |
| 03B0h - 03BBh | Cyrix GX | |
| 03C0h - 03DFh | Cyrix GX | |
| 03F0h - 03F5h | Standard Diskette Drive Controller | |
| 03F6h - 03F6h | Standard IDE/ESDI Hard Disk Controller | |
| 03F7h - 03F7h | Standard Diskette Drive Controller | |
| 03F8h - 03FFh | Communications Port (COM1) | |
| 0480 - 048Fh | Motherboard Resources | |
| 04D0h - 04D1h | Motherboard Resources | |
| 0CF8h - 0CFFh | PCI bus | |
| 10ECh - 10EFh | Motherboard Resources | |
| 20ECh - 20EFh | Motherboard Resources | |
| 3000h - 303Fh | PCI Standard ISA Bridge | |
| 30ECh - 30EFh | Motherboard Resources | |
| 4000h - 400Fh | Motherboard Resources | |
| 40ECh - 40EFh | Motherboard Resources | |
| 50ECh - 50EFh | Motherboard Resources | |
| 60ECh - 60EFh | Motherboard Resources | |
| 70ECh - 70EFh | Motherboard Resources | |
| 80ECh - 80EFh | Motherboard Resources | |
| 90ECh - 90EFh | Motherboard Resources | |
| A0ECh - A0EFh | Motherboard Resources | |
| B0ECh - B0EFh | Motherboard Resources | |
| C0ECh - C0EFh | Motherboard Resources | |
| D0ECh - D0EFh | Motherboard Resources | |
| E0ECh - E0EFh | Motherboard Resources | |
| F0ECh - F0EFh | Motherboard Resources | |
System Memory
Models: 2250 Series, 2410 ES, 2510
System Memory |
|
| Memory Address | System Function |
| 00000000h - 0009FFFFh | System Board extension for PnP BIOS |
| 000A0000h - 000AFFFFh | Cyrix GX |
| 000C0000h - 000C7FFFh | Cyrix GX |
| 000E0000h - 000FFFFFh | System Board extension for PnP BIOS |
| 00100000h - 00DDFFFFh | System Board extension for PnP BIOS |
| 40000000h - 4FFFFFFFh | Motherboard Resources |
| FFFC0000h - FFFFFFFFh | Motherboard Resources |
Power Supply
Models: 2250 Series, 2410 ES, 2510
Power Supply |
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| U. S. | Metric | |||
| Input Specifications | ||||
| Nominal Line Voltage | 180 to 264 VAC | 180 to 264 VAC | ||
| Range Input Line | 90 to 132 VAC | 90 to 132 VAC | ||
| Frequency Range | 47 to 63 Hz | 47 to 63 Hz | ||
| Power Factor | 0.6 | 0.6 | ||
| Input Power | 280 Watts | 280 Watts | ||
| Input Current | 3.0 at 90 VAC | 3.0 at 180 VAC | ||
| Inrush Current | 60 A at 132 VAC (cold start) | 60 A at 264 VAC (cold start) | ||
| Holdup Time | 16 ms from zero crossing at 120 VAC | 16 ms from zero crossing at 240 VAC | ||
| General Specifications | ||||
| Full Output Rating | To 122° F and 5,000
ft To 90° F and 10,000 ft (derate linearly) |
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| Minimum Load | 3.0 A on + 5.0 V output; 0.04 A on 12 V output | |||
| Ambient Temperature Range | ||||
| Operating | 50° to 122° F | 10° to 50° C | ||
| Storage | -40° to 151° F | -40° to 66° C | ||
| Dielectric Voltage Withstand | ||||
| Input to Ground | 2500 VAC/1 second | |||
| Safety Standard | UL 1950; CSA 22.2 #950 or CSA 22.2 #234; TUV/VDE EN 60 950 (VDE0805/11.91); EMKO-TSE (74-SEC) 207/93 | |||
| Input Transient Susceptibility | ||||
| Common and
Differential Mode (superimposed on AC line) |
2500 V, 1 us, damped
sinusoid 600 V, 10 us pulse |
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| Differential Mode | 20% step change in AC input voltage | |||
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