IBM System x3100 M5/M4/M3 Tower Servers

Alta Technologies buys & sells new, used, and refurbished IBM System X3100 M5, M4 and M3 System X tower servers and upgrades. Whether you need a fully configured system or simply require a feature or part, we carry a huge stock of Used IBM/Lenovo System X server hardware.

With over 25 years of experience, Alta Technologies is the leading IBM reseller in the area. We also buy your excess IBM & Lenovo server and storage equipment.

Contact us about complete systems or parts for the IBM System x3100 M5/M4/M3 Tower Servers (to buy or sell)

IBM x3100 M5/M4/M3 Information

The IBM System x3100 M5, M4 & M3 Tower Servers are a single networked tower server designed for small businesses and first-time server buyers looking for a business efficiency solution. The IBM System x3100 M5, M4 & M3 Tower Servers provide several innovative IBM features in a competitively priced, compact 5U form factor.

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IBM x3100 M5/M4/M3 Specifications


Pentium Dual-Core E2140 1.6 GHz/800 MHz

Xeon 3065 Dual-Core processor 2.33 GHz/1333 MHz


512 MB, 1 GB, or 2 GB PC2-5300 CL5 ECC DDR2 SDRAM DIMM system memory

Up to 8 GB of system memory

Mixing memory sizes

System memory can be expanded to 8 GB by installing a 2 GB DIMM option in each of the four memory DIMM sockets.

Hard drive (HD):

Integrated Serial-ATA (SATA) controller

Supports 160, 250, 500, and 750 GB SATA hard drives

160 GB SATA hard drive standard


The five drive bays

Two 5.25/3.5-inch half-high bays

One bay consumed by SATA DVD-ROM drive the other for supported removable media devices

Three 3.5-inch slim high bays supporting two SATA hard drives

Networking: Full-duplex, Gigabit Ethernet PCI-E controller

Power supply: A worldwide, manually switched 310-watt power supply, with auto re-start that supports maximum configurations and minimizes operator intervention after a temporary power outage

Cooling: One variable-speed system fan that cools the microprocessor and I/O plus one variable-speed power supply fan


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Since 1995, we've poured all of our efforts into delivering products that match our client's expectations and exceeds their price savings target.

With our huge inventory and industry-leading engineers, customers tell us they trust Alta for our reliability, custom configurations, parts responsiveness, lightning fast delivery and savings to boot.

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Not only reliable, but with discounts up to 80% off of new, we have thousands of satisfied clients worldwide. Meet your IT project needs for less.

Equipment Buy-Back

We buy back your excess IT equipment for cash offer or trade-in, providing full data erasure and ITAD services.

Since 1995

Our product experts know servers, storage and networking equipment, delivering decades of experience in IT hardware.