Most people assume an all-in-one PC cannot be upgraded. For many big-brand and consumer AIOs that is true: the processor is soldered, the motherboard is a proprietary shape and, in some cases, even the memory is fixed. But it does not have to be that way. HiStone’s upgradeable all-in-one PCs use desktop-class processors and industry-standard parts, so you can add memory, swap storage and even replace the motherboard years after purchase. Here is how they compare with sealed AIOs from HP, Dell, Lenovo, ASUS, Acer and Apple.
Laptop chips vs desktop processors in an all-in-one PC
Many slim all-in-one computers use mobile (laptop) processors, typically Intel U-series or P-series chips rated around 15W to 28W, soldered to the board. They keep the AIO thin and quiet but limit sustained performance, and they can never be changed.
Every HiStone all-in-one PC supports desktop processors up to 65W:
- Hibertek T20, T22, BF24 and E24 – Intel Core i3, i5 and i7 desktop CPUs up to 65W on a standard Thin Mini-ITX board.
- Hibertek GI24, GI27, U24 and BG24 – Intel LGA1851 (Core Ultra Series 2), LGA1700 (13th/12th Gen), LGA1200 (11th/10th Gen) or AMD AM4 Ryzen, all up to 65W.
Desktop-class CPUs give you more cores, higher sustained clock speeds and better multitasking. That matters for ERP, CAD viewing, large spreadsheets, video calls with background effects, and anything that runs all day.
What can you upgrade on a HiStone AIO?
| Component | HiStone AIO | Typical sealed AIO |
|---|---|---|
| Memory | Standard SO-DIMM; up to 64GB DDR4/DDR5 on GI24, GI27, U24, BG24 | Often limited slots; some models soldered |
| Storage | M.2 2280 SSD plus 2.5-inch bay (two 2.5-inch bays on T22) | Often a single M.2 slot |
| Processor | Socketed desktop CPU up to 65W | Frequently soldered mobile CPU |
| Motherboard | Industry-standard Thin Mini-ITX | Proprietary, model-specific board |
| Wi-Fi | M.2 E-key module, up to Wi-Fi 7 on GI/U/BG | Usually fixed at purchase |
| Power | External adaptor or internal power board | Model-specific |
How the big brands compare
HP ProOne and EliteOne
HP’s business AIOs, such as the ProOne 440 G9, use desktop processors and user-replaceable memory, and are among the more serviceable big-brand designs. However, the motherboard is HP-specific, so once the platform ages you replace the whole unit.
Dell Pro All-in-One
The Dell Pro 24 All-in-One uses Intel Core Ultra processors in 35W and 65W versions, with two memory slots and a spare M.2 slot on some models. Again, the board is a Dell part.
Lenovo ThinkCentre neo and M-series AIOs
Lenovo’s neo 50a Gen 5 uses SO-DIMM memory up to 32GB and M.2 storage. Processor and board are fixed by the SKU.
ASUS ExpertCenter and Acer Veriton
Many ASUS ExpertCenter E5 and Acer Veriton Z all-in-ones use mobile-class processors, which keeps them slim but limits upgrades and peak performance.
Apple iMac
The iMac’s Apple silicon, memory and storage are all fixed at purchase. Nothing can be upgraded later.
Why upgradeability matters for business
- Longer life – add RAM or a bigger SSD instead of replacing the whole computer.
- Lower total cost of ownership – keep the screen, chassis and stand; refresh only the board and CPU.
- Easier repairs – standard parts mean faster fixes and fewer whole-unit swaps.
- Sustainability – less e-waste when one component fails or ages.
- Standardisation – the same chassis across sites, even as internals evolve.
Which upgradeable AIO should you choose?
For the widest processor choice and up to 64GB of memory, choose the GI24 or the 27-inch GI27. For value, the U24. For a premium edge-to-edge design, the BG24. For an upgradeable touch screen PC, the T20, T22, BF24 or E24.
Upgradeable all-in-one PC FAQs
Can you upgrade the RAM in an all-in-one PC?
On HiStone AIOs, yes. All use standard SO-DIMM memory, up to 64GB on the GI24, GI27, U24 and BG24.
Can you upgrade the processor in an all-in-one PC?
HiStone AIOs use socketed desktop processors on a Thin Mini-ITX board, so CPU and board upgrades are possible within the supported platforms. Our technicians can advise on the best route.
Is an AIO with a desktop CPU louder?
A desktop CPU needs more cooling, but HiStone’s 65W thermal design keeps noise at office levels. You can also choose a lower-power processor if silence is the priority.
Talk to us about upgradeable AIOs
Read our Thin Mini-ITX all-in-one PC explainer, browse the all-in-one PC range, or contact B-Spoke Systems on 0116 260 3100 to plan a long-life AIO rollout.