HP officially doesn’t support memory upgrades on the M401 series. It has the slot, but they do not sell memory modules like the p2055 and older models once allowed with a laptop SODIMM. On top of this, the module is proprietary, so HP probably uses it as a service port OR had plans and abandoned it during development. HP solders it to the formatter board on these printers; the M401dne (which I managed to secure for next to nothing with 24k pages, shove the toner DRM whre the sun don't shine HP :-) ) has 256MB onboard, as do the others like the dn, dw, and x (x=dw with paper tray). The n is only 128MB and will ALWAYS BE a 128MB printer.
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It's used as an "expansion slot" for these cards:
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* BarDIMM Pro, Jetmobile
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* MicrDIMM Pro, Jetmobile
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* TypeHaus Fonts and Barcodes Solutions, TypeHaus, Inc.
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* Asian Fonts, JITCO, Ltd.
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* BarDIMM® Box, Jetmobile
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* BarSIMM 1.9, Jetmobile
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* EIO Hard-Disk for LaserJet Series, Oberon Service SRL
HP officially doesn’t support memory upgrades on the M401 series. It has the slot, but they do not sell the modules to do so. On top of this, the module is proprietary and isn’t based on a SODIMM or proprietary module derived from the SODIMM format. It’s very likely the M401n has a firmware to limit it to 128MB.
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The slot is there on the M401 series, but it is nonstandard. It is likely there for HP to cheaply add additional memory to the higher end models like the M401dn without having to spin multiple formatter boards. That said, it is possible HP designed the board to take multiple capacities and abandoned support.
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HP officially doesn’t support memory upgrades on the M401 series. It has the slot, but they do not sell memory modules like the p2055 and older models once allowed with a laptop SODIMM. On top of this, the module is proprietary, so HP probably uses it as a service port OR had plans and abandoned it during development. HP solders it to the formatter board on these printers; the M401dne (which I managed to secure for next to nothing with 24k pages, shove the toner DRM whre the sun don't shine HP :-) ) has 256MB onboard, as do the others like the dn, dw, and x (x=dw with paper tray). The n is only 128MB and will ALWAYS BE a 128MB printer.
HP officially doesn’t support memory upgrades on the M401 series. It has the slot, but they do not sell the modules to do so. On top of this, the module is proprietary and isn’t based on a SODIMM or proprietary module derived from the SODIMM format. It’s very likely the M401n has a firmware to limit it to 128MB.
-
The slot is there on the M401 series, but it is nonstandard. It is likely there for HP to cheaply add additional memory to the higher end models like the M401dn without having to spin multiple formatter boards. That said, it is possible HP designed the board to take multiple capacities and abandoned the slot.
+
The slot is there on the M401 series, but it is nonstandard. It is likely there for HP to cheaply add additional memory to the higher end models like the M401dn without having to spin multiple formatter boards. That said, it is possible HP designed the board to take multiple capacities and abandoned support.
HP officially doesn’t support memory upgrades on the M401 series. It has the slot, but they do not sell the modules to do so. On top of this, the module is proprietary and isn’t based on a SODIMM or proprietary module derived from the SODIMM format. It’s very likely the M401n firmware has a bit that prevents more then 128MB of RAM.
+
HP officially doesn’t support memory upgrades on the M401 series. It has the slot, but they do not sell the modules to do so. On top of this, the module is proprietary and isn’t based on a SODIMM or proprietary module derived from the SODIMM format. It’s very likely the M401n has a firmware to limit it to 128MB.
-
The slot is likely there for HP to add additional memory to the higher end models without multiple formatter boards. That said HP may have designed the board to take multiple capacities and abandoned the slot.
+
The slot is there on the M401 series, but it is nonstandard. It is likely there for HP to cheaply add additional memory to the higher end models like the M401dn without having to spin multiple formatter boards. That said, it is possible HP designed the board to take multiple capacities and abandoned the slot.
HP officially doesn’t support memory upgrades on the M401 series. It has the slot, but they do not sell the modules to do so. On top of this, the module is proprietary and isn’t based on a SODIMM or proprietary module derived from the SODIMM format.
+
HP officially doesn’t support memory upgrades on the M401 series. It has the slot, but they do not sell the modules to do so. On top of this, the module is proprietary and isn’t based on a SODIMM or proprietary module derived from the SODIMM format. It’s very likely the M401n firmware has a bit that prevents more then 128MB of RAM.
The slot is likely there for HP to add additional memory to the higher end models without multiple formatter boards. That said HP may have designed the board to take multiple capacities and abandoned the slot.
HP officially doesn’t support memory upgrades on the M401 series. It has the slot, but they do not sell the modules to do so. On top of this, the module is proprietary and isn’t based on a SODIMM or proprietary module derived from the SODIMM format.
The slot is likely there for HP to add additional memory to the higher end models without multiple formatter boards. That said HP may have designed the board to take multiple capacities and abandoned the slot.