Welcome to the Mainstreet Computers parts department. We make parts research and purchasing quick and easy. If you have any questions at all, our friendly team of replacement parts experts are just a phone call away. Genuine parts, personal service, same day shipping and the industry's best products. 

At Mainstreet Computers we only carry genuine OEM replacement parts. 

If you want maximum up-time, the best performance, safety, and energy efficiency, use OEM parts.

You've invested a lot of time and money into your business. Protect that investment with genuine OEM parts for all your server equipment. It's the only way to guarantee performance, safety, and efficiency.

Why choose OEM parts?
Sure, it may be tempting to use lower-cost parts. But the truth is, saving a few dollars now could cost you a lot more in the long run. Think about these critical items:

  • Reliability - Because OEM parts are designed specifically for your equipment, you'll get the most uptime and maximum performance.
  • Safety - You never know when a small difference will have huge consequences. Why put your business and your employees at risk for an accident or injury caused by non-OEM parts?
  • Warranty Protection - Using non-OEM parts will usually void your equipment warranty (and that can cost big bucks later if a repair is needed).
  • Energy Savings - Genuine OEM parts are designed and tested for exact equipment specifications, so they work more efficiently and can result in energy savings over time.

Don't rely on replacement parts that look like OEM. Get the real thing and rest assured that you're doing the right thing for your business and your bottom line.

We've got your Racks and we're helping you build your data center.

Complete IT Services


PowerEdge 12th generation servers powered by the Intel® Xeon® processor E5 family operate up to 85 percent faster than HP’s 7th generation servers and more than 30 times faster.

The APC AR3100SP1 is a standard enclosure for low to medium density server and networking applications. Its compact width aims to optimize data center space.

At Mainstreet Computers, we know your data center is the backbone of your business, which is why we offer innovative, mission-critical solutions that offer you better availability, improve efficiency, and offer flexible, scalable systems that meet the specific needs of your business. Mainstreet Computers also provides disaster recovery solutions to protect your equipment from hazards and outages that can cause multi-million dollar losses.

Because of the pivotal role we play in your business, Mainstreet Computers is committed to creating and maintaining strong relationships with our customers, built on a foundation of excellence and trust. From the products we manufacture to our dedicated customer service and support, we know what’s important to you. 


MainStreet Computers    574-207-4600

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Parts and Service when you need them 

Maintaining your existing platform when parts are unavailable through normal distribution channels. We can Acquire end of life, discontinued, and Obsolete parts. 


Resetting a Smart Pro UPS System


How do I take System Voltage Readings?


Resetting a Self-Test.


Mounting a Server in the cabinet.

About Us


Visit our Knowledge Center to access user forms, support articles, and to submit a service ticket.


Indiana's most trusted name in computer repair

Welcome to MainStreet Communications. We have been providing dependable and speedy computer repair services for over a decade. Our expert technicians provide service around the clock. We are always ready to serve you. All work is guaranteed! If we don't fix your problem, you don't pay.  We offer in-house FREE Estimates, And Nation-wide On-site Analysis For Low Flat Rate.

Our services include:

Virus and Spyware Removal
Operating System Restoral
Network Setup, Maintenance, and Repair
Hardware Installation, Repair, and Replacement
Data Transfer
Memory Upgrades
Performance Enhancements
Software Technical Support
Comprehensive Diagnostics
PC Tune-up & Optimization Service
Computer Training
Hard Drive Data Recovery
Data Backup
Firewall Optimization
Printer Service And Repair
New Computer Setup
Networking Setup and Maintenance (including wireless)
Data Safety Consultation
Laptop System Installations
Operating System Upgrades
Cabling Installation & Testing
Internet Optimization

Digital Signage - Get Your Message Out!

Product Demos 


Mainstreet Computers offers a variety of standard warranties, extended warranties, on-site services and connected equipment insurance based on the type of product you purchased.

We offer only OEM parts

We Have Several locations In Indiana that have Our Screens up Allowing you to advertise your business, or Cause.. Non-profit organizations get special pricing...

We Got You Covered.


Parts and Service when you need them 

See product demonstrations, learn about common applications, and view step-by-step instructions.

Knowledge Center

Send us an email and we'll get right back to you.

For more than eleven years, Mainstreet Computers as supplied its customers with more than a just servers, racks, or parts and pieces. We are a business partner, a trusted provider of comprehensive product lines and infrastructure solutions, backed by a solid guarantee, fast and friendly service, and incredible sourcing capabilities. 

Our mission is to listen to our client's specific needs and deliver high performance products through continuous product innovation and operational excellence.  We carry complete product lines from Kendall Howard, Middle Atlantic, Rittal, and Eaton.


For a Complete List of Services, Please Visit Our MAIN Website Here.