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Green 128MB 144-pin SODIMM memory module with black chips

Computer Memory Solutions

Computer Memory Solutions CM1664PC133SO 128MB 144-Pin SDR SO-DIMM PC133 memory upgrade

SKU CH-EK5D-FE1TC

128 MB 144-pin SDR SO-DIMM running at 133 MHz for HP DesignJet 500, 500PS, 800 and 800PS printers

  • Total capacity128 MB
  • Rated speedPC 133
  • ChipsetMajor Brand Chipset
  • Buffer typeUnbuffered
  • Product type144-Pin SDR SO-DIMM
  • Compatible systemsHp Designjet 500, 500Ps, 800, 800Ps C2388A
  • 128 MB capacity adds working memory to supported HP DesignJet printers
  • 133 MHz PC133 speed matches the bus specification of the listed plotters
  • 144-pin SDR SO-DIMM form factor fits the memory slot on compatible models
  • Unbuffered non-ECC design meets the printer manufacturer requirements
  • Genuine Computer Memory Solutions module with lifetime warranty from the brand

Compatible Memory Upgrade

This 128MB SDRAM SO-DIMM module is built for HP DesignJet 500, 500Ps, 800 and 800Ps large-format printers. It also fits Business InkJet 2230, 2280, 2280tn and 2600dn models. The 144-pin unbuffered stick installs directly into the printer’s memory slot to expand the available buffer for complex print jobs.

Low-Power Operation

The module runs at 133 MHz with a standard 3.3V supply and no heat spreader. Non-ECC, unbuffered SDR chips keep power draw minimal inside the enclosed printer chassis. Passive cooling is sufficient because the component generates very little heat during normal printing workflows.

Sustained Print Performance

Under continuous, high-resolution output the extra 128MB buffer reduces data starvation and keeps the print engine fed without pauses. The single-stick upgrade is validated for the listed HP models; printers that require a different pin count, voltage or capacity will not accept this module.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $17.99
Cheaper than about 92% of the 21,161 comparable items (median $397.99).
Total capacity 128 MB
Lower than about 99% of the 20,941 comparable items (median 32 GB).
Price per GB $140.55 per GB
Pricier than about 90% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM1664PC133SO
Total capacity128 MB
Product type144-Pin SDR SO-DIMM
Performance
Rated speedPC 133
Processor
ChipsetMajor Brand Chipset
Memory
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Compatibility
Compatible systemsHp Designjet 500, 500Ps, 800, 800Ps C2388A
In the box
Included items1 Memory RAM Stick

Questions about this item

How do I install the 144-pin SODIMM in my HP DesignJet 500 and what step is often missed?

Power off the printer, open the memory cover, align the notch on the 144-pin SODIMM with the slot key, press firmly until both side clips click, then verify the new 128 MB total in the front-panel menu.

What maintenance or replacement will this 128 MB PC133 module need over time?

No routine maintenance is required; if the printer later shows memory errors or fails to recognise the 128 MB, replace the module with another 144-pin PC133 SODIMM.

What limit appears first when the DesignJet 800 runs large raster jobs continuously with this memory?

The 128 MB capacity fills first, forcing the printer to spool to disk and slowing output on complex pages.

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