Great Valley Products
| Company type | Private |
|---|---|
| Industry | Computer hardware |
| Defunct | July 1995 |
| Fate | Rights to Amiga-related product range acquired by GVP-M |
Key people | Gerard Bucas (President), David Ziembicki Sr. (VP of Operations), Jeff Boyer (VP of Engineering), Gregg Garnick (VP of Sales), Erik Quackenbush (Software Development Director), George Rapp (Technical Support Director) |
| Products | CPU accelerator cards, SCSI host adapters for Amiga 500 and Amiga 2000 |
Great Valley Products functioned as an independent hardware vendor for the Amiga platform, focusing on CPU accelerator cards and SCSI host adapters tailored for the Amiga 500 and Amiga 2000. The firm ceased operations in July 1995, after which GVP-M obtained the rights to its Amiga-related product range.
Ownership of Great Valley Products was held by key management personnel and their relatives:
- Gerard Bucas – President
- David Ziembicki Sr. – Vice President of Operations
- Jeff Boyer – Vice President of Engineering
- Gregg Garnick – Vice President of Sales
- Erik Quackenbush – Software Development Director
- George Rapp – Technical Support Director
GVP A530 Turbo
Introduced in 1992, the GVP A530 Turbo integrated a CPU accelerator, disk controller, and an Intel 286 co-processor system designed for the Amiga 500.
| Specification | Details |
|---|---|
| Processor | MC68EC030 running at 40 MHz or MC68030 at 40/50 MHz |
| FPU | Optional MC68882 PGA operating at the same frequency as the CPU |
| MMU | Absent in EC030; built-in on other variants |
| Maximum RAM | Up to 8 MB via two 64-pin GVP SIMM slots |
| Disk Controller | AMD AM33C93A SCSI 50-pin with external DB25 connector; maximum throughput 3.58 MB/s |
| Option | Intel 80C286 CPU with optional 80C287 FPU running at 16 MHz for MS-DOS emulation; includes 512 kB RAM plus access to Amiga memory up to 8 MB; supports CGA, Hercules, EGA, VGA, T3100 video modes with Amiga resource integration |
| Connections | Power input via 5-pin DIN (50W +5V +12V), Amiga Zorro II bus interface, SCSI DB25F port, internal SCSI 50-pin IDC connector |
External links
- Great Valley Products – M Official successor company.
- Amiga Hardware Database – Includes detailed descriptions, images, drivers, and performance benchmarks of GVP products.
- amiga-hardware.com – Photographs of GVP's A530 68030 accelerator.