I engaged "Dave's Computer" to build a new custom build Windows 11 computer as replacement for the Windows 10 machine. I presented my thoughts and needs to Dave about the new unit and he asked some basic questions as to my needs and want for the new unit. We touched on cost for the unit and I left...
Read the full review on Google
Workstation Repair · Dave's Computers, Somerville NJ
Workstation Repair in New Jersey: Dell Precision, HP Z, Lenovo ThinkStation and More
A workstation that won't boot, throws memory errors in the middle of a render, or drops a drive out of its array costs more for every day it's down than most desktops cost outright. I repair Dell Precision and Dell Pro Max, HP Z and Lenovo ThinkStation towers, plus custom-built workstations, at my drop-off shop in Somerville, NJ, and business clients can get on-site service. It's the heavy end of my desktop computer repair work.
⭐ 4.8 Stars · 430+ Google Reviews
🏆 On the Bench Since 2011
📍 Somerville, NJ · On-Site for Businesses
🔧 $75 / $149 Diagnostic, Credited Toward Repair
📞 Call (908) 428-9558
🚗 Directions to the Shop
On this page
- What makes workstation repair different
- Workstation brands and models I repair
- Common workstation failures and what they become
- How a workstation repair works
- What it costs
- What to have ready before it comes in
- When I'll tell you to replace it instead
- What I see on the bench in New Jersey
- Directions to Dave's Computers
- Frequently asked questions
- Sources
What Makes Workstation Repair Different
Same shape as a desktop tower. Very different parts inside, and different stakes.
Workstations run CAD, engineering simulation, video, GIS, architecture, medical imaging and financial models. They're built for sustained load, and they're built out of parts a regular desktop doesn't use. Lenovo's spec sheet for the ThinkStation P5 is a good example: an Intel Xeon W-2400 series processor, eight slots of registered ECC DDR5 memory up to 512 GB, room for up to ten drives with RAID, and a 750 W or 1000 W supply. Repairing a machine like that well means knowing what those parts are for, not just swapping them.
| Part | In a regular desktop | In a workstation | Why it matters for the repair |
|---|---|---|---|
| Processor | Intel Core or AMD Ryzen | Intel Xeon or AMD Threadripper PRO, sometimes two processors | Board and memory compatibility are tighter; a failed processor or socket is diagnosed differently |
| Memory | Consumer DIMMs, two to four slots | ECC and often registered DIMMs, eight or more slots | ECC logs correctable errors before a crash, which points straight at the failing module and slot |
| Storage | One or two drives | Multiple NVMe and SATA drives, often in RAID | A degraded array has to be handled in the right order or data is lost |
| Graphics | Gaming graphics card | NVIDIA RTX PRO, RTX Ada or older Quadro; AMD Radeon PRO | Certified driver branches matter to the software; a failed card is tested and replaced, not repaired |
| Power | 300 W to 850 W | 750 W to well over 1,000 W, often model-specific | The correct supply for the chassis, not a generic unit |
| Software | Everyday apps | ISV-certified configurations, licenses tied to the machine, USB license keys | The repair has to leave the working setup intact |
Workstation Brands and Models I Repair
Current models and the older ones still working hard in New Jersey offices.
| Brand | Current desktop workstations | Older models I still see | Notes |
|---|---|---|---|
| Dell | Dell Pro Precision 9 T2, T4 and T6; Dell Pro Precision 7 T1; Dell Pro Max Tower T2, Pro Max Slim and Pro Max Micro; Precision 7875 Tower | Precision 3620, 3630, 3640, 3650, 3660 and 3680 Tower; Precision 5820, 7820 and 7920; Precision 5860, 7865 and 7960; T5810, T7810 and T7910; T3600, T5600, T7600, T3610, T5610 and T7610; T1700 | Dell sells its current desktop workstations under the Dell Pro Precision and Dell Pro Max names, so the badge on the front depends on the year. |
| HP | Z1 Tower G1i; Z2 Tower G1i, Z2 SFF G1i, Z2 Mini G1i and G1a; Z4 G6i; Z6 G5 and Z6 G5 A; Z8 G5 and Z8 Fury G6i | Z2 G4, G5, G8 and G9 Tower and SFF; Z2 Mini G3, G4, G5 and G9; Z4 G4 and G5; Z6 G4; Z8 G4 and Z8 Fury G5; Z240, Z440, Z640 and Z840; Z220, Z230, Z420, Z620 and Z820; Z400, Z600 and Z800 | Tool-less chassis with model-specific shrouds, fans and supplies. |
| Lenovo ThinkStation | ThinkStation PX, P8, P7 and P5; P3 Tower and P3 Tower Gen 2; P3 Ultra; P3 Tiny | P310, P320, P330, P340, P350 and P360 (Tower, SFF, Tiny and Ultra); P520, P520c, P620, P720 and P920 | The P5 ships with 750 W or 1000 W supplies and registered ECC memory. |
| Supermicro, BOXX and Puget Systems | SuperWorkstation, APEXX and custom workstation configurations | Earlier generations of the same lines | Built largely from standard server and workstation components; the custom-built diagnostic rate applies |
| Custom-built workstations | Xeon, Threadripper PRO and high-core Core or Ryzen builds | Any generation | Standard parts, repaired the way I repair any custom PC |
Model lists reflect what the manufacturers currently sell and the older families that still come through my door. Configurations vary by order, which is why every repair starts on the bench.
Common Workstation Failures and What They Become
The symptom, what usually causes it, and what I do about it.
| What you're seeing | Usual cause | What I do |
|---|---|---|
| Won't power on, or clicks off right away | Failed power supply, or a board fault | Load test and known-good supply; power supply replacement with the correct unit for the chassis |
| Beeps or a blinking power light at startup | Memory, processor or board fault code | Decode the manufacturer's code, then test memory one module and one slot at a time |
| Reboots during long renders or simulations; memory errors logged | A failing ECC module or a slot problem | Read the logged errors to find the module, replace it with matching ECC memory, and run an overnight memory test |
| RAID degraded, drive missing, "rebuild" warning | A failed drive in the array | Image the healthy drives before anything else, replace the failed drive, rebuild. If the array won't mount, RAID data recovery comes first. |
| Viewport artifacts, driver crashes, black screen under load | Failing professional graphics card, or a driver problem | Clean install of the certified driver branch, test the card in a second system, replace it if it's failing |
| Fans at full speed, throttling, slow under load | Dust packed into shrouds and heatsinks, a failing fan | Cleaning and thermal service, processor repaste, fan replacement |
| Won't upgrade to Windows 11 | An older Xeon platform that isn't on Microsoft's supported list | Walk through the options: firmware settings, a platform change, or a replacement |
| Dead after an outage or storm | Supply, board or drive damage | Test each part with known-good hardware; see desktop won't turn on |
How a Workstation Repair Works
At my counter, or at your office if you're a business client.
1
Tell me what the machine does
The software it runs, whether the drives are in RAID, what the deadline is, and anything that has changed recently. A workstation repair starts with knowing what "working" means for your setup.
2
Drop it off, or I come to you
Residential and small-office customers bring the tower to Somerville. Business clients can book on-site service, which matters when the machine is heavy, rack-adjacent, or tied into an office network. See IT support for New Jersey businesses.
3
The diagnostic
Power under load, memory error logs and testing, drive and array health, graphics in a second system when needed, temperatures during a sustained run, firmware versions. I test until the cause is confirmed rather than guessing from the symptom.
4
A flat quote
One number for parts and labor with the diagnostic fee credited. If the machine isn't worth the repair, I'll say so and show you the alternative.
5
Repair, test, return
The correct parts for that model, your certified driver branch left in place, the array verified, and a sustained load test before I call you. Your data and software setup stay as you left them.
What Workstation Repair Costs
The diagnostic is credited toward the work. Prices are a snapshot as of this writing.
| Item | Price | Notes |
|---|---|---|
| Diagnostic: Dell, HP or Lenovo workstation | $75 | Credited toward the repair when you approve the work |
| Diagnostic: custom-built or boutique workstation | $149 | Credited toward labor when you approve the work |
| Repair | Flat quote after the diagnostic | Parts plus labor in one number, no hourly billing |
| On-site service | Business clients | Quoted for your business; see small business PC and server support |
| Turnaround | 24 to 48 hours for most repairs | Parts availability permitting; same-day rush available. ECC memory and model-specific supplies for older workstations can take longer to arrive. |
| Warranty | 30 to 90 days on labor | Parts carry their manufacturer's warranty |
What to Have Ready Before It Comes In
Five minutes of prep that can save a day of downtime.
A backup, if you can get one. If the machine still boots, copy the active projects off first. If it doesn't, tell me what matters most on the drives. Going forward, a tested backup setup is cheaper than any recovery.
Software licenses and USB license keys. Many CAD and engineering packages are licensed to the machine's hardware or to a USB key plugged into it. Leave any USB license key with the tower, and note which programs will need reactivating if a board or drive changes.
RAID and encryption details. If the drives are in an array, tell me that before anything is unplugged. If BitLocker is on, have the recovery key handy.
The admin password and a contact who can approve the quote. For businesses, the person who can say yes to a number is as important as the password.
Don't try to rebuild a degraded array yourself. Rebuilding onto a second failing drive is how a recoverable problem becomes an unrecoverable one. Power it down and bring it in.
When I'll Tell You to Replace It Instead
Workstations are built to last, but not forever.
A twelve-year-old dual-Xeon tower like a Z820 or a T7600 can still be fixed, and sometimes it should be: the software is certified on that exact machine, the project is due Friday, or the budget isn't there this quarter. Repair gets you through.
But those machines draw a lot of power, their parts are getting scarce, and they can't run Windows 11. When the repair quote starts to look like a real fraction of new hardware, I'll show you both numbers. A custom workstation build from my shop starts at $2,000, and in a lot of cases it outruns the old dual-processor tower on the same software. My workstation build guide explains how I spec one, and AI workstation builds cover the GPU-heavy end.
In between, an upgrade is often the answer: more ECC memory, NVMe storage, or a newer professional graphics card in a platform that still has life in it. That's my prebuilt desktop upgrade service.
What I See on the Bench in New Jersey
Composite examples, built from the kinds of jobs that come across my Somerville counter.
A Bridgewater engineering firm's HP Z4 that rebooted during long simulations. Fine for email, gone forty minutes into a solve. The system event log showed corrected memory errors piling up on one module before each crash. A matching ECC module went in, the machine ran an overnight memory test and then a full-length solve, and it went back to the office the next day.
A Princeton architecture office's Dell Precision 5820 with a degraded mirror. One drive had dropped out and the office had been running on the other for weeks. I imaged the healthy drive first, replaced the failed one, rebuilt the array and verified it. The active projects never left the building's hands for more than a day.
A Flemington video editor's Lenovo ThinkStation that crawled on every export. Fans roaring, processor throttling within minutes. Years of dust had packed the heatsink and the front intake. A full cleaning, a fresh processor repaste and a replaced intake fan brought export times back to where they started.
Bring the workstation to Somerville, or call about on-site service for your business. The diagnostic is $75 for a Dell, HP or Lenovo workstation and $149 for a custom-built one, credited toward the work.
📞 Call (908) 428-9558Drop-off shop at 75 N Bridge St, Somerville NJ · Mon-Fri 10-5, Sat 9-2
Directions to Dave's Computers in Somerville, NJ
Downtown Somerville, one block off Main Street, behind Bank of America.
Dave's Computers, 75 N Bridge St, Somerville, NJ 08876Drop-off shop, Mon-Fri 10-5 and Sat 9-2. Street and municipal-lot parking around Main Street.
Directions to the ShopFrom Bridgewater
3 miles · about 10 minutes
Route 22 or Route 202/206 to the Somerville Circle, then Route 28 east (West Main Street) into downtown. Left onto N Bridge St.
Open in Google MapsFrom Hillsborough
5 miles · about 12 minutes
Route 206 north into Somerville, right onto West Main Street, then left onto N Bridge St.
Open in Google MapsFrom Bound Brook
4 miles · about 12 minutes
Route 28 west straight into downtown Somerville. Right onto N Bridge St.
Open in Google MapsFrom Piscataway
10 miles · about 20 minutes
I-287 north to Exit 17 (Route 202/206 south), then Route 28 east into downtown Somerville.
Open in Google MapsFrom Flemington
15 miles · about 25 minutes
Route 202 north to the Somerville Circle, then Route 28 east into downtown. Left onto N Bridge St.
Open in Google MapsFrom Princeton
18 miles · about 30 minutes
Route 206 north through Montgomery and Hillsborough into Somerville. Right onto West Main Street, then left onto N Bridge St.
Open in Google MapsTimes are typical drives outside rush hour. Business clients can call 908-428-9558 about on-site service instead.
Google Reviews
What Customers Say on Google
Live from the Dave's Computers Google listing. Tap any review to read it on Google Maps.
4.8
★★★★★★★★★★Based on 434 Google reviews
I have been going to Dave's Computers for years because he always fixes my problems. I also use his anti-virus and it is as good as any, if not better, than others that I would have to pay much more for. If you're having problems, go to Dave's. He doesn't break the bank and he solves the problems.
View on Google
Over the last decade or so, whenever I had a computer problem, I went to Dave. I recently had a very worrisome crash; the system failed to boot up. (I hadn't needed to use him for about 3 years.) I paid the "rush fee" on Saturday when dropping the machine off with the weekend agent. By Monday...
Read the full review on Google
"As a Broker of over 40 years in New Jersey I rely on my computer help", which is the artery to my success and business. Thank goodness Dave's is here for me with the messes I get into with scammers, land grabbers and just uneccesary things that I pick up. The most effective virus program have ever...
Read the full review on Google
I had previously tried to build my own PC to no success. Even though right now it is really tough to get a PC built due to the price increases with RAM’s, GPU’s and other parts because of AI, I still really wanted to get one for myself. I came across Dave’s Computers online and went in for a...
Read the full review on GoogleReviews from Google Maps
Workstation Repair Questions From New Jersey Customers
What offices and professionals ask before they bring a workstation in.
Where can I get a workstation repaired in New Jersey?
Dave's Computers at 75 N Bridge St in Somerville, NJ repairs Dell Precision and Dell Pro Max, HP Z, Lenovo ThinkStation and custom-built workstations. Drop it off Monday through Friday 10 to 5 or Saturday 9 to 2, no appointment needed. Business clients can also get on-site service.
How much does workstation repair cost?
The diagnostic is $75 for a Dell, HP or Lenovo workstation, credited toward the repair, and $149 for a custom-built or boutique workstation, credited toward labor. The repair itself is a flat quote for parts and labor after the diagnostic, so you know the number before anything is ordered.
Do you repair Dell Precision, HP Z and Lenovo ThinkStation workstations?
Yes, current and older models. That includes the Dell Pro Precision and Dell Pro Max desktops as well as older Precision towers like the 5820 and 7920, HP Z2 through Z8 including the Z420, Z640 and Z840 generations, and ThinkStation models from the P320 and P520 through the P5, P7 and PX.
Can you come to our office to repair a workstation?
Yes, for business clients. On-site service is quoted for your business and makes sense when a machine is heavy, part of an office network, or can't leave the building. Residential customers bring the tower to my shop in Somerville.
Will the repair keep my software, drivers and licenses intact?
That's the goal of every workstation repair. I leave your certified driver branch in place, don't reinstall Windows unless you approve it, and tell you before any change that could trigger a license reactivation, like a motherboard or boot drive replacement. Leave any USB license key plugged into the tower.
Do you repair professional graphics cards like NVIDIA RTX PRO or Quadro?
I don't repair graphics cards. I test the card with a clean install of the certified driver and in a second system, and if the card has failed, I replace it with a suitable professional card and confirm your software runs on it.
Is my old workstation worth repairing?
Often, if the fault is a single part like a power supply, a memory module or a drive. For a decade-old dual-processor tower that can't run Windows 11, I'll show you the repair quote next to what a new workstation build would cost, which starts at $2,000 from my shop, and you decide.
Sources and further reading
- Lenovo, ThinkStation P5 product specifications (PSREF): Xeon W-2400 series, eight slots of DDR5 RDIMM ECC memory up to 512 GB, RAID support and 750 W or 1000 W power supplies.
- HP, HP Z desktop workstations: the current Z1, Z2, Z4, Z6 and Z8 model names.
- Dell, Dell Pro Max Tower T2 owner's manual: specifications, power ratings and power supply connectors for Dell's current tower workstation.
Workstation Repair in New Jersey, at My Bench or Your Office
Bring the workstation to 75 N Bridge St in Somerville, or call about on-site service for your business. I'll find the fault, keep your setup intact, and call with one flat number. It's part of my desktop computer repair service.
📞 (908) 428-9558Mon-Fri 10am-5pm · Sat 9am-2pm · 75 N Bridge St, Somerville NJ · On-Site for Business Clients