🧠 Toshiba THMR1E8E-8 – Full Technical Overview📦 Basic Product Info:

• Manufacturer: Toshiba

• Model: THMR1E8E-8

• Capacity: 128MB per module

• Configuration: 4-chip (single-sided)

• Kit Configuration: 2 x 128MB RDRAM modules

• Total Capacity: 256MB

• Memory Type: RDRAM (Rambus DRAM)

• Speed Rating: PC800-45

• ECC: Yes (Error-Correcting Code)

• Form Factor: 184-pin RIMM

• Buffered/Registered: Registered (RDRAM default)

• Heat Spreader: Yes (standard for RDRAM modules)

• Install in Pairs: Yes, with continuity RIMMs (C-RIMMs) in empty slots

🔧 Detailed Technical (Rambus DRAM)Capacity per Module128MBKit Capacity256MB (2x128MB)Speed GradePC800 (800 MHz effective)Latency45ns (denoted by “-45”)Pins184-pin RIMMVoltage2.5VECC SupportYes (used in (standard for RDRAM)Module Layout8-chip; likely dual-rankHeat SpreaderYes (mandatory on RDRAM)🖥️ PC Compatibility List

This memory is compatible with systems that use PC800 ECC RDRAM, typically based on Intel 820, 840, or 850 chipsets, in both workstation and desktop environments.

✅ Dell-Compatible PCs:

• Dell Precision Workstation 220

• Dell Precision Workstation 420

• Dell Dimension XPS T series (select RDRAM builds)

• Dell Dimension 8100 (early PC800 variants)

✅ HP / Compaq-Compatible PCs:

• HP Kayak XA / XU / XM Workstations

• HP Vectra VL800 / VL810

• HP x2000 / x4000 Workstations

• Compaq AP550 Workstation

• Compaq Evo W4000 (ECC configurations)

✅ IBM-Compatible PCs:

• IBM IntelliStation M Pro 6217, 6220, 6850

• IBM IntelliStation Z Pro (Intel 840/850)

• IBM NetVista A60 (RIMM-equipped models)

✅ Gateway-Compatible PCs:

• Gateway 700XL Series

• Gateway Performance 1300 / 1400 (RDRAM-based)

✅ Compatible Motherboards (Custom PCs):BrandCompatible Chipsets / ModelsIntelD820GB, D840GB, D850GBASUSP4T, P4T-E (Intel 850), CUR-DLS (dual Xeon)ABITTH7, TH7-IISupermicroP4DCE+, P4STA, P4DP6

These support ECC RDRAM and were designed for Socket 423/478 Pentium 4 or dual-Pentium III Xeon systems.