The WinBook J4 was a heavy and high-performance Pentium 4 Desktop Replacement laptop, released by WinBook in March, 2002. In line with other desktop replacement laptops, it used full desktop processors, instead of the Pentium 4M chips found in lighter notebooks.
Like WinBook's other laptops, the J4 was just a rebadged generic laptop - actually, three different ones from the same series (ECS Green730, Green731, Green732), which all shared nearly the same design, with the main differences being internal.
The J4 was available in two color schemes, a black and silver, or a silver and gray. The black models had a rubber coated display housing, similar to ThinkPads.
Here's how to quickly identify which J4 variant a particular laptop is.
From this, you should easily be able to identify the J4 in the photo to the right to be a Green731, as it lacks the front multimedia buttons.
| Spec | J4 Green730 | J4 Green731 | J4 Green732 |
|---|---|---|---|
| CPU | Socket 478 - Intel Pentium 4 @1.7, 2.0, 2.2, or 2.4GHz (Northwood) - Intel Celeron |
Socket 478 - Intel Pentium 4 @1.8, 2.0 or 2.4GHz (Northwood) - Intel Celeron @1.7GHz |
Socket 478 - Intel Pentium 4 @2.0, 2.2, 2.4, 2.6, or 3.06GHz - Intel Celeron @2.0GHz |
| RAM | - PC133 SDRAM - Up to 1GB Maximum |
- PC2100 DDR - Up to 1GB Maximum (officially) |
- PC2100 or PC2700 DDR Up to 1GB Maximum (officially) |
| Hard Disk | - IDE 2.5" - UltraDMA 33/66/100 Support - 20, 30, or 40GB Standard |
- IDE 2.5" - UltraDMA 33/66/100 Support - 20, 30, 40, or 60GB Standard |
- IDE 2.5" - UltraDMA 33/66/100 Support - 20, 30, 40, or 60GB Standard |
| Display Options | - 15" TFT LCD @1024x768 - 15" TFT LCD @1400x1050 |
- 14" TFT LCD @1024x768 - 15" TFT LCD @1024x768 |
- 15" TFT LCD @1024x768 - 15" TFT LCD @1400x1050 |
| Graphics Chipset | - ATI Mobility Radeon 7500 - 64MB Dedicated VRAM |
- SiS 650 - up to 64MB shared (SMA) VRAM |
- ATI Mobility Radeon 9000 - 64MB Dedicated VRAM |
| Audio | Realtek ALC201 | SigmaTel STAC 9721 | Realtek ALC201 |
| Main Battery | Lithium Ion, 12-cell, 87.02w/h | Lithium Ion, 8-cell, 57.7w/h | Lithium Ion, 12-cell, 87.02w/h |
| CMOS Battery | Lithium CR2032 | Proprietary Lithium | |
| Power Supply | Barrel Jack, 19V 4.7A, 90W | ||
| Disk Drives | Optical Drive | ||
| PC Cards | - 1x Type II PCMCIA/CardBus Slot - ZoomVideo Support |
- 1x Type II PCMCIA/CardBus Slot - Unknown whether it supports ZV or not |
- 1x Type II PCMCIA/CardBus Slot - ZoomVideo Support |
| Networking | - Modem - 10/100 Ethernet - Optional WiFi |
- Modem - 10/100 Ethernet |
- Modem - 10/100 Ethernet - Optional WiFi |
| Other I/O | - 4x USB 1.1 - 1x Parallel - 1x VGA Out - 1x Line Out - 1x Mic In - 1x S-Video Out - Infrared |
- 4x USB 2.0 - 1x Parallel - 1x VGA Out - 1x Line Out - 1x Mic In - 1x S-Video Out - 1x IEEE1394/FireWire - Infrared |
|
| BIOS | Phoenix | AMI | Phoenix |
| Pointing Device | Trackpad and TrackPoint | Trackpad | |
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