Here are complete details for the memory module NEC MC-4R128CEE6C-745 and associated information, including specs, part numbers, and compatible PC models:
Product Identification:

• Manufacturer: NEC (Nippon Electric Company)

• Model: MC-4R128CEE6C-745

• Type: DDR SDRAM

• Kit: 2 x 128MB modules

• Capacity per Module: 128MB

• Total Capacity (Kit): 256MB

• Form Factor: 184-pin DIMM

• Error Checking: Non-ECC (non-parity)

• Module Rank: Likely Dual Rank

Technical Specifications:AttributeValueMemory TypeDDR SDRAM (1st Generation)SpeedPC2700 (DDR-333)Clock Speed166 MHz (Effective 333 MHz DDR)Voltage2.5VCAS Latency (CL)CL2.5Data Width64-bitPins184-pin DIMMBuffered/UnbufferedUnbufferedError CorrectionNon-ECC (no error checking)
Associated OEM Part Numbers:OEMPart NumberHewlett-Packard (HP)1818-8013IBM / LenovoFRU: 33L3102
These part numbers were rebranded and used by OEMs in branded desktops and workstations.
💻 Compatible PC Models

Below is a list of confirmed and highly likely PC models compatible with this memory module (primarily from the early 2000s using DDR-333 memory):

✅ IBM / Lenovo Compatible Models:

• IBM NetVista 8305, 8306, 8310 series

• IBM ThinkCentre A30, A31, M50, M51

• IBM IntelliStation M Pro 6220, 6217

• IBM eServer xSeries 205, 225 (select configurations)

✅ HP / Compaq Compatible Models:

• HP Compaq D530 Series (SFF, Tower, Convertible)

• HP Compaq Evo D510 / Evo D530

• HP Pavilion models from 2002–2004 supporting DDR-333

• HP Workstation xw4000, xw5000

• HP ProLiant ML310 G1 (some configurations)

🛠️ Other Desktop PC Systems:

Any PC from manufacturers like Dell, Gateway, or custom builds using Intel 845, 865, 875 chipsets or AMD socket A/462 motherboards that support:

• DDR SDRAM

• 184-pin DIMM

• PC2700 (DDR-333)

• Non-ECC, unbuffered modules

Note: These modules are not compatible with DDR2, DDR3, or newer systems.