OldPCGuy
Decision guide

Upgrade or replace an old PC? What the memory shortage changes

Cartoon of Brandon in headphones and a blazer, sitting cross-legged on a pile of old computer parts, with a magnifying glass over a processor chip

For years the advice was simple: add an SSD and some memory for about $100, and an old PC feels new again. Then AI data centers started buying up the world's memory chips, and prices for RAM, SSDs, and hard drives took off. New PCs are getting more expensive too. That changes the math on keeping an old computer, mostly in its favor, as long as you shop smart.

By Brandon Sheley 8 min read

Short answer

  • Upgrade if the PC is from about 2018 or later, or it's older but you only need web, email, and documents, and the parts cost well under a replacement.
  • Buy used memory from a seller with returns, and test it. Be pickier with used SSDs.
  • Replace with a refurbished business PC if the upgrade bill passes about half its price, or the PC can't run what you need.
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What happened to prices

Memory chips go into RAM, SSDs, phones, and the AI servers that big tech companies are building as fast as they can. Since late 2025, those companies have been buying most of the supply, often years ahead, and chipmakers have shifted their factories toward them. Everyone else gets what's left.

PartPrice changeSource
DDR5 desktop kitsUp 355% to 485% in a yearTom's Hardware, Aug 2025 to Aug 2026
DDR4 desktop kitsUp 120% to 180%Tom's Hardware, same period
Hard drives and SSDsUp about 130%ComputerBase (German retail), Sept 2025 to Sept 2026
New PCsAverage prices up as much as 8% in 2026IDC forecast
Older DDR3 memory isn't tracked in these reports. Check current listings before assuming any price.

Don't expect a quick bounce back. Micron and Samsung have both said 2027 looks tighter than 2026, and hard drive makers have most of their output sold into 2028. For current prices on the parts in this guide, I keep trackers on my personal site for memory, SSDs and hard drives, and small used PCs.

The flip side: the computer you already own just got more valuable. Keeping a decent PC running another few years is a better deal than it has been in a long time.

Upgrade or replace: how to decide

Start by finding out what's actually slowing it down and how old it is. Then:

Your PCWhat I'd do
2018 or newer, still on a hard drive or 8 GBUpgrade. An SSD, and memory if Task Manager shows you running out. It runs Windows 11, so it has years left.
2014 to 2017, used for web, email, documentsAn SSD only, if it still has a hard drive. Skip big memory upgrades. Plan for Linux or Windows 10 ESU until October 2027.
Any age, needs more than about $150 in partsPrice a refurbished business PC first. With parts this expensive, the gap has narrowed.
Older than 2014Free fixes only, or Linux. Don't buy parts for it.

The rule of thumb I use: if the upgrade costs more than about half of a good refurbished replacement, buy the replacement. You get a newer processor, Windows 11 support, and a warranty for not much more.

Still on a spinning hard drive? That's the one upgrade I'd still make on almost any PC worth keeping. Even a small, inexpensive SATA SSD makes a bigger difference than any amount of memory. My guides cover cloning to an SSD and checking which kind of SSD your laptop takes.

Buying used memory safely

Used memory is the best bargain left. It has no moving parts and almost never wears out, so a stick pulled from an old office PC usually works like new. Most of the memory that comes out of the business PCs from my e-waste pickups goes straight into my own machines and homelab.

  1. Find the exact type your PC takes. Open Task Manager, click Performance, then Memory. It shows the type (DDR3, DDR4, DDR5), speed, and how many slots are used. Laptops take the shorter SODIMM sticks, and desktops take full-size DIMMs. They aren't interchangeable.
  2. Match what's there. Same type and, ideally, the same speed as the stick you have. Faster sticks run at the slower speed, which is fine. DDR3 laptops sometimes need low-voltage DDR3L, so check your model's specs.
  3. Buy from a seller with returns, and a photo of the actual sticks showing the label.
  4. Test it the day it arrives. Type Windows Memory Diagnostic in the Start menu and let it restart and run. For a more thorough check, MemTest86 runs from a USB stick for a few hours. Any error at all means send it back.

See how much RAM you actually need before you buy. For most people that's 8 to 16 GB, not 32.

Buying a used SSD

SSDs do wear out, slowly, with every write. A used one can be fine or can be most of the way through its life, and you can't tell from a listing photo.

  • Ask for a CrystalDiskInfo screenshot showing the health percentage and total host writes. A seller who won't send one is telling you something.
  • Check it yourself on arrival. My guide to checking SSD and hard drive health shows how. Return anything below about 90% health or showing Caution.
  • Compare with new. A new 500 GB SATA SSD from a known brand often isn't much more than a used one, and it comes with a full warranty.
  • Skip no-name SSDs, new or used. Cheap drives from unknown brands are often slower and less reliable than their labels claim.

For bulk storage in a home server, a used hard drive can make sense, but only the right kind. Here's what to know about recertified hard drives.

Free parts you might already have

Before you buy anything, look around. An old laptop in a closet may have a memory stick or SSD that fits your main PC, as long as the type matches. Family members replacing computers often have parts they'd happily give away. Just wipe any drive that comes out of someone else's computer before you use it.

If you replace it

New budget laptops have taken the biggest hit from the shortage, and the cheapest ones tend to cut corners on memory and storage. A refurbished business laptop or desktop from 2018 or later is usually the better buy. Secondhand laptops have gone mainstream in 2026 for exactly this reason.

When you switch, move your files over, then decide what to do with the old one. It may still be useful as a home server, or a family member's web-and-email machine with Linux.

Next step Are refurbished computers worth buying? Yes, if it's an off-lease business model from 2018 or later with an SSD, 8 to 16 GB of memory, and a warranty.

Questions about upgrading during the shortage

Why are RAM and SSD prices so high in 2026?

AI data centers are buying most of the world's memory and storage, and chipmakers are prioritizing them. Tom's Hardware found DDR5 kits up 355% to 485% and DDR4 kits up 120% to 180% between August 2025 and August 2026. Most industry forecasts don't expect relief before 2027 or later.

Is it still worth upgrading an old PC?

Often, yes. An SSD is still the single best upgrade for a PC with a hard drive. Keep the total spend well under the price of a refurbished replacement, and buy used memory where it makes sense, since memory rarely wears out.

Is it safe to buy used RAM?

Generally, yes. Memory has no moving parts and rarely wears out. Buy from a seller with returns, match the type and speed to your PC, and test it with Windows Memory Diagnostic or MemTest86 as soon as it arrives.

Should I buy a used SSD?

Only with a health check. Ask for a CrystalDiskInfo screenshot, or check it yourself as soon as it arrives, and return it if the health is low or it shows warnings. A new budget SATA SSD from a known brand is often the safer buy.

Will PC prices go down in 2027?

Most forecasts say no. Memory makers have warned 2027 could be even tighter than 2026, and hard drive supply is booked into 2028. Nobody can promise a date, so plan around today's prices rather than waiting.

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