Tag: cpu

Upgrades an original Apple IIe with a 65C02 processor and the Enhanced IIe system and video ROMs.

The current page exposed selectable computer and video-ROM options with an Add to cart path on 2026-07-24. Select the 24-pin US or 28-pin European video-ROM option that matches the motherboard.

Period 3.6 MHz accelerator with a 65C02, 256K of high-speed memory, and optional 16-bit processor upgrades.

This is a period product obtained used and is distinct from TransWarp GS. Confirm the exact card revision, installed processor, diagnostics, and slowdown behavior before buying. The brochure says it works with most DMA cards, but a mixed vintage system still needs card-by-card verification.

Runs a 68030 CPU and optional 68882 FPU at 47 MHz in SE/30 and socketed modular Macintosh configurations.

Juicy Crumb showed a $309 to $359 Add to cart path for Booster 2.0 on 2026-07-27. Choose the exact PDS or PGA-socket variant for the host. Booster 1.x is superseded but its original-card schematic and GAL archive remain available. PDS-card compatibility differs between generations, and System 7.5 or later can produce sound glitches on 1.x cards.

Current FPGA replacement for MOS 6510 and 8500 processors, including the documented instruction set and cycle behavior.

The official project page links three current retail channels, and AmericanRetro exposed a direct Buy Now route on 2026-07-30. The retailer describes a same-size, no-soldering drop-in replacement; that assumes the original CPU is already socketed. A soldered CPU still requires proper desoldering and a suitable socket.

Upgrades compact Macintosh computers with a 16 MHz 68030 and optional 68882 FPU through original vintage cards or modern recreations.

The open clone remains buildable, but MacEffects' assembled Macintosh SE variant was sold out on 2026-07-27. The original MicroMac page was last modified in 1998, so its order form and prices are archival rather than a current purchase path. Modern-clone operation has been tested in the Macintosh Plus and SE, but not in the Classic; no secure socket has been found for the Classic's PLCC CPU. Host-specific U7 and SJ2 settings are mandatory. GAL16V8-15 and PALCE16V8-15 parts are tested, while ATF16V8 and other speeds are not.

Combines an approximately 16 MHz 68030 and optional 68882 on a compact MicroMac Performer remix made for a Macintosh Plus clone.

Human review confirmed that the JCM Edition was in stock on 2026-07-24 and that JCM offers the CPU and FPU as a separate linked item. The open project and bare-PCB path remain available. Confirm the Edition's exact assembly state and mounting-clip contents before ordering. Installation requires access to the 68000, PLD choice is important, and some software may have distorted audio.

Tested period 6510 and 8500 processors for repairing a Commodore 64 with an original CPU.

Retroleum listed several tested 6510 and 8500 variants with stock on 2026-07-30, but the store was temporarily closed until approximately the beginning of August. These are finite harvested period parts. Confirm that ordering has resumed, whether the selected chip was socket-pulled or desoldered, its pin condition, and the return terms.

Adds a 16 MHz 68030 to a Macintosh Plus with a compact hobbyist-buildable board derived from the MicroMac Performer.

This build requires a PGA 68030, five programmed 16V8 devices, and soldering a socket on top of the Macintosh Plus 68000. The maker does not recommend the System 7.0 GemStart driver, reports garbled or intermittent audio, and warns builders to watch the first SIMM's clearance.

Provides a modular Z80 processor with flexible clock and reset options.

The project provides a schematic, Gerbers, PCB design files, and kit or bare-PCB suppliers; an assembled version is not offered. PCB v1.0.0 needs a wire link across C7 when X2 is not populated. Enable only one voltage supervisor in a system.

Adds an 18.432 MHz Z180 processor, dual serial ports, and a microSD interface.

The project provides firmware, a schematic, Gerbers, PCB design files, and kit or bare-PCB suppliers; an assembled version is not offered. RomWBW supports the microSD interface, while the documented Small Computer Monitor configuration does not. On PCB v1.0.0 the JP2 RX2 and TX2 labels are swapped; v1.0.1 corrects them.

Combines a Z80 processor with a 20-bit MMU for SC721's 1 MB linear memory.

The project provides firmware, a schematic, Gerbers, PCB design files, and kit or bare-PCB suppliers; an assembled version is not offered. Pair it with SC721 linear memory and do not combine it with the bank-switching SC707 or SC714 memory modules.

Accelerates an Apple IIe with a WDC 65816 processor and a replaceable 13 MHz oscillator.

Provides a replaceable Z80 processor module with optional advanced bus signals.

The current kit does not include a ZIF socket. On the Standard Bus option, a separate ten-pin header exposes /NMI, /WAIT, /BUSRQ, and /BUSACK.