For sale is a Sonnet Crescendo G3 processor upgrade card for NuBus Power Macintosh systems.
This is the G3 500MHz / 1MB cache version, intended for compatible Power Macintosh 6100, 7100, and 8100 series systems.
Condition: non-working / for parts or repair.
This card was tested, but the system does not chime with the card installed. No further repair or detailed diagnosis has been performed.
The card is being sold strictly as-is for parts, repair, or troubleshooting. It may have a hardware fault, firmware/software requirement, compatibility issue, incorrect system configuration requirement, power/cooling issue, or another problem. Please assume it will require diagnosis by an experienced vintage Macintosh user.
Cosmetic condition is as shown in the photos. Please review all photos carefully for exact condition and included items.
This is vintage hardware for vintage Apple Macintosh computers. Use of this item requires era-appropriate knowledge, compatible hardware, and proper installation/software configuration. No guarantees are made regarding functionality, repairability, or compatibility.
Fast and careful shipping from Tokyo, Japan.Please be aware of any customs import duties or taxes in your country.
🇺🇸 US buyers: shipments are sent DDP (Delivered Duty Paid), which means there are no duty fees on delivery, as duties are included in the shipping rate.
Please also note that customs delays may occur, particularly within the EU.
This is vintage hardware/software for vintage computers. Use of this item requires era-appropriate knowledge and compatible hardware/software. Please carefully verify your intended use and compatibility before purchasing. I am happy to answer reasonable questions, but compatibility with every system or configuration cannot be guaranteed, and step-by-step installation support is not provided. Issues arising from incorrect installation, modification, or incompatible use are outside the seller’s responsibility.
I usually ship within 24 hours. If shipping falls on a Saturday in Japan, dispatch may occur the following Monday.
