It's very unlikely they would expect any normal user to fiddle with individual chips. Possibly there is a jumper on the computer motherboard to be shorted to reset the BIOS (this is common), this would most likely be in the manual somewhere. Are you trying to use a typical user method of resetting the BIOS to get back to factory defaults? I think you may be looking at the wrong thing. Of course all of these may have prefixes and suffixes added by various manufacturers to indicate who makes them, what package, temperature range etc.We need some context. Same scheme goes for 29 xyyy where yyy denotes size and x is technology, for example 29C010 is available as AM29C010 from Atmel or W29C010 from Winbond but these are the same chips and one can replace the other in most cases.Ģ4C xxx are I2C EEPROMs, 27C xxx are old plain paralell EPROMs (UV erased - but for example W27Cxxx is a flash replacement), 28F xxx are FLASH (not sure what's the difference between that and 29F xxx, I can only find 29F xxx can be erased block-by-block and 28F xxx can't), 47C xx are EERAMs and so on. So you can expect a something-25Q08- somethng to be a 512 MB (8Mbit) Flash memory, and it would be smaller than 25Q16 and bigger than 25Q04 for example. There is no central authority on part numbers, so everyone plays along everyone else in this field and it works itself out.įor example 25 xyyy are SPI FLASH EEPROMs where x denotes some serie ( /u/JcxFFS has broken it down nicely) and yyy denotes size (in mega bits, the size is not in bytes!). So yes you can safely swap it for a Winbond one. So for example your part, 25Q32 is made by GigaDevice (never heard of them), but googling for "25Q32 datasheet" gives me a datasheet for a W25Q32 which is the very same part made by Winbond. Generally with common parts like this, the same part is made by several manufacturers and to make things easier the main part of the part number is the same.
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