• Amptron DX-9700

• Fake cache

The motherboard may include a non-functional or counterfeit SRAM cache, which can adversely affect performance. Signs of fake cache often include soldered DIP-chips and no jumpers to set the chache size. Cache functionality can usually be restored by installing proper chips, jumpers and a BIOS update/mod.

• Proprietary Cache Slot

The motherboard has a distinctive, non-standard cache that can affect compatibility and performance. The cache slot might resemble a familiar slot type, such as an Intel COAST slot or another common design. However, it is not compatible with these modules. Connecting an incompatible module may lead to irreversible damage to the motherboard. Exercise caution to prevent damage to your hardware. It is likely that you are dealing with a PCChips motherboard.

Infamous for having it's propietary cache slot, some boards feature fake cache.
Unofficial homepage for the 80486 VIP board