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The iMac Screen Goes Stripey, Then Blank

The "screen goes stripey when starting up & then goes blank", and the owner "cannot do anything on it at all". An Apple shop looked at the 2007 iMac and said it was "not worth repairing", which as an economic judgement is entirely correct and as a data judgement is beside the point. Stripes followed by a blank screen is a graphics fault, and graphics faults have no bearing whatsoever on the drive. The photographs, music and documents are sitting on a perfectly ordinary hard drive inside a machine that can no longer show you anything. Take the drive out and none of the display trouble follows it. This is the cheerful end of Mac work.

MacHard DriveElectrical / PCB
// case at a glance
MediaA 2007 iMac whose display stripes at start-up and then goes blank, deemed uneconomic to repair, holding photographs, music and documents that were never backed up.
Reported situationiMac, 2007 · screen stripes on start-up then goes blank · machine unusable · Apple shop advised it was not worth repairing and did not recover the data · nothing ever backed up · photographs, music and documents wanted.
Fault classGraphics or display failure — the video hardware has failed, so the machine can no longer produce a picture. The hard drive is an independent component and generally unaffected; it is removed and read directly, with the display fault entirely bypassed.
Equipment usedThe drive removed from the iMac and read directly with a write-blocker sitting in front of it, PC-3000 UDMA driving it, its health confirmed first · copied to an image on DeepSpar, the Mac filesystem taken apart in R-Studio · photographs, music and documents located, checked by rendering, and written to fresh media. The display fault was never a factor.
// the decode

The decode

Stripes, coloured bars or a chequered pattern at start-up, followed by nothing at all, is the classic signature of a graphics processor or its solder joints failing. Machines of this era are particularly prone to it — the chips run hot in a slim all-in-one case, the joints fatigue over years of heating and cooling, and eventually the picture goes. It is genuinely uneconomic to fix on a machine this old, and the shop was right to say so.

But a graphics fault is a fault in the part that draws the picture, and the hard drive has nothing to do with drawing pictures. It is an ordinary 3.5-inch drive, connected by an ordinary cable, holding the photographs, the music library and the documents in an ordinary Mac filesystem. Take it out of the machine and it is simply a drive, readable on any suitable bench with no reference to iMacs, displays or 2007 at all.

The only thing worth checking first is the drive's own health, because a machine of this vintage may well have a drive of the same vintage. So it is profiled before it is read in bulk, and if it turns out to have its own problems, that is priced honestly rather than being folded in as a surprise. Most of the time it does not. What people generally lose in this situation is not the data but the years they spend assuming the machine's death was the data's death, which is why the message here is worth saying twice: a Mac that cannot show you anything can still hand you everything.

// on the bench

On the bench

The drive came out of the iMac and went on PC-3000 UDMA with a write-blocker wired in line, where its health was confirmed before anything was read in bulk — a sensible precaution on a drive that has been running since 2007. It read well, so it was imaged using DeepSpar in a single controlled pass. The Mac filesystem was taken apart in R-Studio, and the photographs, music and documents were located and rendered to confirm they opened before the whole set went onto fresh media.

// the outcome

The outcome

Drive read directly, imaged, and the photographs, music and documents written out to fresh media — everything the machine had been sitting on since it went dark. The diagnostic cost nothing; the figure that followed was fixed, written and inclusive of VAT. The drive was healthy and the work was logical, so no fix, no fee applied: nothing recovered would have meant nothing to pay. The iMac itself remains, as advised, not worth repairing; the data was never the same question.

An iMac with a striped or blank screen

Do not confuse a machine being beyond economic repair with your data being beyond reach — they are different questions, and the shop that answered the first was not answering the second. Stripes at start-up and then a blank screen is a graphics failure, and the drive holding your photographs and music has taken no part in it. On an iMac of this age the drive is an ordinary one on an ordinary connector, and it comes out and reads perfectly well by itself. Do not have the machine wiped, recycled or traded in before the drive has come out — that is the only way this story ends badly, and it ends badly rather often, usually about a fortnight before somebody thinks to ask.

Something similar sitting on your desk? Every job on this site begins the same unhurried way: a diagnostic that costs nothing, done within 2 working days of the parcel landing on the bench, and then a single written figure that does not move afterwards. Logical faults carry no fix, no fee. Where a drive has to be opened, or its board rebuilt after impact, an electrical fault, water or fire, 50% of the quote falls due first and the rest only on success. Ransomware, CCTV recorders, BitLocker volumes and other forensic-classed jobs are settled in advance and in full. Where the data sits inside a laptop, a desktop, a Mac or a server, take the drive or SSD out and send that by itself: we do not remove internal drives from machines, and memory soldered onto a logic board (Apple Silicon Macs and the like) sits outside what we take. If it unplugs or unscrews, it is our sort of work. Post it tracked and insured to Cambridge Data Recovery, Compass House, Vision Park, Chivers Way, Cambridge CB24 9AD, use a courier you book and pay for yourself, or hand it over the desk there — there is no collection service. Packing advice and the shipping form live here.
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