Replacement for P4B266: Drop-In Alternatives We Stock
Looking for a replacement for the P4B266 (P4B266 - ASUS P4B266 Intel 845 DDR Chipset DDR 3-Slot ATA-100 ATX System Board (Motherboard) Socket 478)? Pro Disk Network ships Intel drop-in replacements and equivalent modern parts from US inventory. Every alternate below is in-stock today with same-day shipping for orders placed before 2pm ET. If your unit is still under warranty, contact our engineering team — we offer cross-shipping for B2B customers on Net 30 terms.
About the P4B266
| SKU | P4B266 |
|---|---|
| Product | P4B266 - ASUS P4B266 Intel 845 DDR Chipset DDR 3-Slot ATA-100 ATX System Board (Motherboard) Socket 478 |
| Current price | $537.39 |
| Stock status | In Stock |
| Detail page | View P4B266 › |
Drop-in replacements for P4B266
Each part below is currently in our US warehouse, ships same-day for orders before 2pm ET, and includes our 90-day warranty. SKUs link to the full product page with photos, datasheets and B2B quote form.
P4P800S - ASUS Asus P4P800S Desktop Motherboard Intel Chipset Socket PGA-478 1 x Processor Support 2 GB Serial ATA/150 Ultra ATA/133 (ATA-7)
SKU: P4P800S
Price: $290.66
754558-304 - Intel Slot-1 AGP Slot 4 PCI Slot-2 ISA Slot-3 DIMM ATX Motherboard
SKU: 754558-304
Price: $505.53
P8H77-M PRO - Asus Desktop Motherboard Intel H77 Express Chipset Socket H2 LGA-1155 Micro ATX 1 x Processor Support 32GB DDR3 SDRAM Maximum RAM CrossFireX Support Serial ATA/300, Serial ATA/600 Yes Controller No 2 x PCIe x16 Slot 2 x USB 3.0 Port Yes
SKU: P8H77-M-PRO
Price: $417.54
GA-P67X-UD3-B3 - Gigabyte Intel P67 Express Chipset DDR3 4-Slot Serial ATA-300 / Serial ATA-600 ATX System Board (Motherboard) Socket LGA1155
SKU: GA-P67X-UD3-B3
Price: $514.21
P5L-MX - Asus Intel 945G / ICH7 Chipset 2-Slot DDR2 RAM micro-ATX System Board (Motherboard) Socket LGA 775
SKU: P5L-MX
Price: $250.53
283983-001 - Compaq Intel 845 Chipset micro-ATX System Board (Motherboard) Socket 478 for Evo D310 microtower
SKU: 283983-001
Price: $205.26
GA-H55M-S2V - Gigabyte Intel H55 Express Chipset DDR3 2-Slot Serial ATA-300 Micro ATX System Board (Motherboard) Socket LGA1156
SKU: GA-H55M-S2V
Price: $392.99
SE7520BD2V - Intel SE7520BD2V E7520 Chipset 6-Slot DDR DIMM System Board (Motherboard) Socket 604 / 603 Server
SKU: SE7520BD2V
Price: $157.00
D915PGN - Intel 915P Express Chipset 4-Slot DDR SDRAM ATX System Board (Motherboard) Socket i915P
SKU: D915PGN
Price: $291.79
BOXD845EBG2 - Intel 845E Chipset 2-Slot DDR DIMM ATX System Board (Motherboard) Socket 478 with USB 2.0
SKU: BOXD845EBG2
Price: $717.96
How we pick replacements
Every recommendation above was selected using these criteria:
- Drop-in compatibility — same form factor (2.5"/3.5", PCIe slot, SFP port, etc.), so it fits the original chassis without modification
- Equivalent or better performance — matched on RPM/IOPS/speed/throughput, never downgraded
- Same-brand-preferred — we list the OEM-equivalent first when available, then trusted aftermarket
- Warranty coverage — 90-day Pro Disk warranty on every part, with 1-year option for B2B
- In stock today — never recommend a part that is on backorder
Need help confirming compatibility?
Our engineers validate every replacement against your specific server, switch, or chassis model before shipment. Email sales@prodisknetwork.com with your platform model (e.g., Dell PowerEdge R740, HP DL380 Gen10, Cisco Catalyst 9300) and we will confirm the exact part number that drops into your hardware.