Sd Slot Not Working On Imac

The SD card reader slot on my iMac has stopped picking up cards. When I insert a card, it fails to mount. This used to work fine, and still does if a card is inserted while booting up. But after it has been ejected, it will fail to mount again. I've seen suggestions that this is a hardware issue. As this sounds very unlikely - can anyone confirm? If the SD card works with your device (e.g., can see pictures on the camera) but doesn't work with your computer, it's safe to assume the computer card reader has problems. A temporary workaround would be to connect the camera, phone, or another device to the computer using a USB cable with the SD card in the device. SD card is not recognized when inserted into the slot if the computer is already running, but will be recognized if the card is in place on reboot. Solution: Turns out this is not a software problem, but a hardware problem. There is a small switch inside the card reader that signals to the computer that a card has been inserted.

Sd Slot Not Working On Imac Pro

Is it possible to fix laptop memory slot failure with a guitar pick? Yes, it is. You will not fix the memory slot itself, but you can work around the problem. 🙂
Today I received a Toshiba Satellite Pro 4600 laptop with the following complaint:

The laptop starts and works properly, but recognizes only one of the two memory modules installed. The laptop has two 256MB RAM modules installed, but registers only 256MB.

First of all, I removed the memory cover to find out if both memory modules are installed correctly. The laptop had two 256MB Kingston modules installed and they were seated properly.

When I started the laptop and entered the BIOS setup menu, I found that only one of the two memory modules is detected and the laptop registers only 256MB (262144KB) of RAM instead of 512MB (524288KB).
Just a side note. In the computer world 1MB=1024KB. That’s why 256MB=262144KB and 512MB=524288KB.

I tried reseating both memory modules but it didn’t help.
After that I tried installing both memory modules in both memory slots one by one and here’s what I found. The laptop worked absolutely fine when both memory modules were installed into the slot A, but failed to boot with both memory modules installed into the slot B.
Apparently, there is nothing wrong with the memory modules and the laptop has a faulty memory slot B. The memory slot is permanently soldered on the motherboard. If one of the slots fails you’ll have to replace the whole motherboard or use the laptop with only one working slot.
Buying a new motherboard for this older laptop wouldn’t make any sense because it’s too expensive, but the laptop is still in a good working condition except the faulty memory slot B, so I continued playing with that trying to find the solution.

I noticed that the laptop start normally with the memory module installed into the faulty slot if I slightly press on the module with my thumb. And this gave me an idea.

This guitar pick is going to fix my laptop. 🙂

I installed both RAM modules back into the slots and then placed the guitar pick over the module in the slot B as it shown on the picture.

Sd Card Reader Not Working On My Imac

I thought if I close the RAM door it will press on the guitar pick/memory module and it will have the same effect as pressing on the module with my thumb. And it worked!

Both memory modules were detected properly and the laptop registered all 512MB. After “the fix” I tested memory with Memtest86+ and the laptop passed the test.
I wouldn’t call it the best solution for fixing a faulty memory slot but in some cases it will work.

By the way, I didn’t charge the customer for this “repair”, he knows what is going on and how I “fixed” his problem.

Sd Slot Not Working On Imac