From esports-ready rigs to silent workstations — we configure, assemble, stress-test and deliver island-wide. Pick a path to get started.
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Choose every component. We build, stress-test, and deliver to spec.
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Same-Day
Pre-built, in stock, ready to go. Collect today or delivered tomorrow.
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B2B & AI
Workstations, NVIDIA Jetson systems, and AI desktops for business.
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Walk-in
Diagnostics, repastes, upgrades, and onsite servicing island-wide.
Book a serviceEvery build ships with a full 3-year warranty and lifetime support. We're here long after delivery — not just at checkout.
Island-wide delivery in 1–4 working days. Same-day self-collect available for most builds and stock items.
Cables managed, temps benchmarked, and Windows 11 optimised before every build leaves our hands. No shortcuts.
Trusted names that help us re-Define your Custom PC.
Built in Singapore
Choose every part that goes inside: graphics card, chassis, cooling and cable colours. We assemble it, stress-test it and ship it to your door.
Businesses and organisations across Singapore chose Define PC for the machines their work depends on.
Need desktops or workstations for your team? Talk to our enterprise team
Choose every part and we build it around how you use your PC, from the processor to the cable colours.
Spread the cost with our in-house plan, use a card from a major Singapore bank, or pay later with popular apps.
Any brand, any age. We diagnose first and quote before any work starts, then test your PC before it goes back to you.
Define PC designs and builds custom computers in Singapore, from gaming rigs to AI servers.
Built around your games
Custom gaming PCs in Singapore, built around the games you play. From competitive esports to graphically demanding AAA titles, each desktop is configured for smooth frame rates and responsive performance, and assembled with quality components to suit your budget.
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Tuned for your software
Custom workstation PCs for 4K video editing, 3D rendering, CAD, content creation and local AI model deployment. We match the processor, memory and graphics to your software, from professional desktop workstations to high-memory AI workstations for creators, engineers and businesses in Singapore.
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Built for business
Custom server PCs, GPU servers, AI computing systems and rackmount solutions for businesses in Singapore. We configure each system for your workload, from AI model development and GPU-accelerated computing to business applications, with the performance and scalability you need.
Shop servers & AIReal reviews from Define PC customers on Google.
I had my custom PC built by Define PC, and the entire experience was great from start to finish. Shane was incredibly knowledgeable and patient, guiding me through the process of selecting the best components for my needs and budget. The level of customization offered was awesome. I was able to choose specific components and parts. Shane was transparent about pricing and availability of parts. After I decided on the PC, the custom build process and delivery were swift. After the purchase, Shane followed up to make sure everything was running smoothly and was quick to answer a couple of questions I had during setup. Overall, I was happy with my experience at Define PC. The service was excellent and the pricing was fair. If you're looking for a reliable and professional custom PC shop, I highly recommend them. I will definitely return for future upgrades.
There are many reviews here complimenting the professionalism, speed of service and affable natures of Shane and the team behind DefinePC. I am happy to be one more client in their portfolio who can very readily attest to the validity of these claims. I fell in love with the look of the Fractal Design Terra casing and reached out to Shane via WhatsApp with some questions about the build. Less than 3 days later, I was looking at this green beauty in my room and thinking to myself that I couldn’t have found a better re-entry point into custom PCs and gaming. Shortly after, I requested for an addition of a slim profile fan into the casing and this was completed swiftly by Chris in less than half an hour. I want this review to really drive home the point that such a positive experience with a brand - online and offline, from initial purchase to aftersales, is not an easy find at all. Coming from a hospitality background and being someone who obsesses endlessly about little details of customer relationships, I wholeheartedly agree with many other clients here that the whole experience with DefinePC is top-tier. Not once did I feel I was being profiled through my questions and spending power, with both Shane and Chris effortlessly excelling in demonstrating how simple, satisfying and stress-free the whole custom-PC purchasing process could be. And what, it also comes with a three-year warranty? I don’t know how they do it but I love it. Thank you DefinePC, and thank you Shane and Chris for your exceptional work.
Shane at Define.PC built me an incredible gaming rig. From the first conversation, Shane made the whole process easy. When I wasn’t sure about anything, he patiently explained the trade-offs and gave suggestions clearly. Communication throughout the build was excellent. Shane kept me updated, answered every question quickly, and had the PC ready ahead of schedule. The build quality is outstanding. The cable management is some of the cleanest I've seen, it's exactly what I wanted, and it runs quiet and cool even under heavy load. It booted up perfectly on day one, already tested and set up. If you’re in Singapore and want a custom PC built by someone who knows his stuff and treats you right, go to Define.PC and ask for Shane. I’d absolutely return for my next build.
Everything people ask before ordering a custom gaming PC in Singapore.
Tell us your budget and what you'll use it for — our team will recommend a build.
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