Hello, sergey2b, you wrote: SK>> There are at me suspicions... And on a card it is written "pcmi" or nevertheless PCMCIA? S> yes you are right S> I tried to make on another and launched the utility of configuration PCMCIA it writes that all PCMCIA slots are empty Because a flash card it not PCMCIA the device and ISA. [Smilie] If does not bring my sclerosis, boards of the extension of storage for ISA is immediate in operative storage are not displayed, additional mbytes become accessible in DOS\WINDOWS after setting of instructions of the driver in config.sys. That is, at stage POST of check, loading BIOS, this storage is not accessible. BIOS it does not see, does not consider, does not check. Even if it is serviceable. If to this flash card there is no specific driver, two variants: if it XMS helps native DOS himem.sys if it EMS helps native DOS EMM386.SYS or QEMM386.SYS Besides, the sclerosis prompts that there are subtleties of usage, the loading order. To or after himem.sys and command line keys.