Can you replace my motherboard?

Short answer: sometimes yes, and sometimes we’ll advise you not to.

The motherboard — or logic board on a Mac — is the large circuit board everything else plugs into. It’s the single most expensive component in most computers, and on modern laptops it usually carries the processor and often the memory soldered directly onto it.

That last detail is the crux. When a motherboard goes, you’re frequently replacing the processor and memory with it, which is why the cost jumps so sharply compared with any other repair.

First, is it actually the motherboard?

People arrive fairly often having been told it’s the motherboard when it isn’t. The symptoms overlap heavily with cheaper faults.

“It won’t turn on” can be the charger, the charging port, the battery, or the power button — all far less expensive. “No display” can be the screen, the display cable or the backlight. Random shutdowns are often overheating from a clogged fan. Not booting is frequently a failing drive.

All of those are cheaper than a board, and all of them get misdiagnosed as one. It’s the first thing we check, and the diagnosis is free.

When it is the board

Typical genuine causes: liquid damage that has corroded the board, a power surge, a failed graphics chip, or physical damage from a bad drop.

Liquid is worth a paragraph of its own. If something was spilled and the machine was switched off quickly and brought in soon, the odds are decent — corrosion is progressive, and cleaning it early can save a board. If it was spilled, dried out, and used again for a fortnight, the damage is usually done. Speed matters more than anything else with liquid.

The economics

Board-level work falls into two categories, and they cost very differently.

Component-level repair — replacing an individual failed part on the board rather than the whole board. Where it’s possible it’s much cheaper, and it’s often possible with power-circuit and charging faults.

Whole board replacement — expensive, and on anything past about five years old, rarely worth it against the price of a replacement machine.

Our honest position: on a machine under three years old, a board replacement often makes sense. Between three and five, it depends on the machine and what it cost originally. Past five, we’ll usually tell you to put the money towards a replacement — and we’ll say so plainly rather than quoting you a number and letting you work it out.

Your data is a separate question

Worth saying clearly, because people assume the worst: a dead motherboard does not mean your files are gone.

In the overwhelming majority of cases the storage is perfectly intact — the computer simply can’t start up to reach it. We can nearly always recover everything off a machine with a failed board, whether or not you go ahead with the repair.

So if you’ve been told your board has failed and you’ve resigned yourself to losing your photos, don’t. Bring it in. Data recovery and transfer starts from £102, and if you’re replacing the machine we’ll move everything across to the new one.

What to do

Bring it in and let us confirm what’s actually wrong before you spend anything. If it’s a £60 charging port rather than a motherboard, that’s worth knowing. If it really is the board, we’ll tell you what it costs and whether we’d do it in your position.

Workshop on Station Road, or ring 01753 884700.