🔹 Product Highlights:
- Overview
The AOpen AX4B-533 Tube is a 2002-era Socket 478 ATX motherboard designed for Intel Pentium 4 processors (400/533MHz FSB) based on the Intel 845E chipset. Famous for its integrated Sovtek 6922 vacuum tube in the audio circuit, it was marketed for high-quality audio, supporting 5.1 channel output, USB 2.0, DDR memory, and AGP
- Brand: Aopen
- Manufacturer: Aopen
- Model: AX4B-533
- P/N: 5B20Q75141(Lenovo), LA-E541P(ASUS)
- CPU: Socket 478 supporting Intel Pentium 4 (Northwood/Willamette) - P4 2.66GB/512KB Cache/533Mhz Bus & Intel Genuine Heatsink and Cooling Fan installed
- Chipset: Intel 845E (Brookdale-E).
- Memory: 3x DDR DIMM slots supporting up to 2GB DDR200/266/333 or up to 2GB/3GB (depending on revision) of DDR SDRAM - Lot 3 of Kingston DDR266 256MB SDRAM Memory Installed
- Expansion Slots: 1x AGP, 6x PCI, 1x CNR slots
- Storage: 2x IDE controllers (ATA 100), 1x Floppy controller
- Audio: 5.1 audio.
- Back Panel I/O: PS/2 mouse/keyboard, 2x USB 2.0(1 broken USB) , Parallel, 2x Serials, and Audio jacks
- USB Expansion Card: Belkin 2(Outside)+1(inside) PCI Card
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