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My Mac mini A1176 is overheating because of the hard drive

My Mac mini did an emergency shut down last night because it was running too hot.

Does an SSD produce less heat than a HDD, if not what can I do to stop it from overheating

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I don't know much about computers but this might be because of dust or you need. New thermal paste

I will clean it out thank you

Ssd surely causes less heat

@ellusion - they do! But here we have a complication as this is a very old system I honestly don’t even know if any SSD’s where made with a SATA I interface. I think the first ones where SATA II and they were also on the small side as well, yet alone quite expensive at the time.

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To answer your direct question does using a SSD product less heat than an HDD - Yes it does.

But before we throw the baby out with the bath water let’s make sure that is the issue.

I would recommend dusting out the system using a soft paint brush and a can of canned air to blow the debris out. Focus on the fan blades and the heat sink fins.

As well as a good thermal monitoring app like TG Pro to see what’s happening.

But you have two sizable issues here! This is a very old model as such you’ll need to contact Matt at TG Pro to get the correct version for your system.

The second is the drives interface in this series is only SATA I (1.5 Gb/s) so the HDD or SSD drive needs to be able to run at this slower speed. Most of todays drives are SATA III (6.0Gb/s) these older SATA II (3.0Gb/s) and even older SATA I (1.5 Gb/s) are just impossible unless used. So don’t be to quick swapping drives.

once you have TG Pro running post a snapshot of the apps main window when it’s running hard so we can see things then we can dig deeper on what needs repairs or change.

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What is Matt?

@thomas35549 - Matt is the developer of TG Pro. At the bottom of his URL page you’ll find an email address post a message for him there with your OS9 or OS-X version so he can get you the needed version. Let him know we sent you. Good Luck!

@danj Definitely agree, thermal paste or dust is way more likely the cause of heat than a HDD, just like to add that it's perfectly fine using a brand new SATA III SSD on a SATA I/II mobo and vice versa, they're backwards compatible!

@dannish - Sorry to tell you it’s the reverse! You can use a SATA I drive in a SATA III system and likewise a SATA II drive will work in a SATA III system. I was there when this was being worked out! The reasoning was at the time drives were expensive and more likely to be moved over to a newer faster system and the second reason was the data recovery into the new system.

So older drives are upperly compatible, not the other way as the systems buffers are smaller in a SATA I system than what a SATA II or III system has.

Now let me now throw a monkey wrench into this! Some drive makers offer an auto sense drive which adjusts its data flow to match the system so as an example a Samsung 870EVO is an auto sense drive! It’s one of the few! Here’s the Samsung 870EVO spec Sheet now look at the Interface line “ SATA 6 Gb/s Interface, compatible with SATA 3 Gb/s & 1.5 interfaces” unless the drives spec sheet explicitly states it it’s a fixed speed drive!

@danj

To my knowledge they've always been backwards and forwards compatible.

According to this document from an embedded controller company that's what they say as well: https://knowledge.ni.com/KnowledgeArticl...

Not to mention Crucial's Compatibility Checker, which suggests SATA III SSDs for ancient ThinkPads which run only SATA I: https://www.crucial.com/compatible-upgra...)

I was using a Samsung 840 Evo SATA III SSD with a H61 SATA II motherboard for a couple of years like many people did when SSDs actually became affordable, there was never any issue there.

I've really not heard of newer SATA SSDs being incompatible with older SATA systems the whole decade I've been in the DIY PC world either.

I'm wondering now if I just got lucky all the time and just happened to get compatible SSDs? The odds of that are tiny though, given the unlimited range of SSDs and motherboards.

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