ULSI 80387sx FPU LCC FasMath Math CoProcessor 387SX 16-40 MHz USA Seller
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$24.95
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About this item
Restoring a vintage 386SX machine? This ULSI 80387SX math coprocessor, sold under the FasMath name, is an LCC-package FPU marked for 16-40 MHz systems. A US-based seller lists it new at $24.95.
Will this 80387SX math coprocessor work in my retro PC?
It's meant for boards with an 80387SX coprocessor socket. Check your motherboard manual for the socket type and supported clock speed before ordering.
- Package: LCC chips need a matching socket, so compare the photos with your board.
- Speed match: confirm your system's clock falls within the 16-40 MHz range.
- Contacts and markings: zoom into the listing photos to check for damage.
- Handling: use anti-static precautions when installing.
A small part that can help math-heavy software on period hardware. The eBay Money Back Guarantee applies to your order.