Is this at the same level as the iMac Pro, which was something crazy like 3GB/s read, and 2.5GB/s write?

⟐ Commented 2월 18, 2019 at 10:39 GMT-7

there is no visual damage on the logicboard.

i removed the logic board and found some markings on the board.

testpoints at the following parts on the bottom side are marked "pink": U6400, U6410, U9500. those areas/parts are marked "blue": the circuits between R9537/C9522 and C9525/R9540, the printed text of L4732/R4732/R4733.

on the top side is only one "red" marking on C9521.

i've read a few things of other dying minis, some suffered the "failing fan issue" - but i don't think that those things are related. others died during the setup/update of 10.6.3.

the pram battery had 2.99v - but nothing changed after replacing it with a new battery.

and please - no "get a new mini" or "replace the logic board" answers.

i want to know if those computers are fixable or not - there are way to much minis out there that could do a great job in those times (mine is a 2ghz c2d with 2gb ram - not a "crappy" old 1.5 core solo)

the cpu isn't the problem, tired it with different ones, the brick works too - tested on another mini and it delivers around 18.5v to the board

any useful suggestions??

⟐ Answered 7월 31, 2016 at 13:05 GMT-7

⟐ Answer edited 8월 23, 2023 at 14:45 GMT-7

Already had another working 2018 Mac mini, so I switched the logicboard, so to test the power supply......the already working Mac mini still turn on with the psu of the system that doesn't turn on, so the psu is not the problem, tried the bad system with the psu of the one that's operational...still nothing...no light, no sound, just completely dead......also tried the fix for systems that shows same symptoms after an update (T2 restore steps with Apple Configurator). still don't see the system......so I am inclining myself to a bad chip somewhere in the logic board.....is there any basic troubleshooting steps that I can use to measure transistors continuity or any other steps that anyone is aware of...thanks!!

⟐ Commented 11월 05, 2022 at 12:53 GMT-7

Thanks for reply.

⟐ Answer accepted 6월 16, 2015 at 14:12 GMT-7

⟐ Answered 5월 28, 2024 at 9:45 GMT-7

⟐ Commented 5월 24, 2023 at 7:41 GMT-7

So if you want this feature to work, you will have to replace your <2012 n with an ac board.

The question then is the part number that corresponds to the 802.11ac that works in a <2012 MBM.

Yes. Mac Mini.( And some more characters to meet the minimum requirement.)

⟐ Commented 9월 25, 2020 at 23:27 GMT-7

⟐ Commented 11월 07, 2018 at 11:15 GMT-7

⟐ Answer accepted 6월 18, 2017 at 19:08 GMT-7

Interestingly enough, the Mac wouldn't recognize my startup keystrokes. I tried the "C" "Option" and other key combinations, but the Mac continued to boot as normal, straight to my desktop.

I have the new USB wired Apple aluminum keyboard with the two USB 2.0 ports on it, and the Mini simply won't recognize it at startup. The keyboard works fine once I get to the login screen.

To ensure that nothing else was wrong, I plugged in a generic Acer PC keyboard, and rebooted again.

The Mini recognized the keystrokes! I was able to use "C" "Option" and the other keystrokes without fail, and the disc booted properly. But when I used the Apple keyboard, there was no such luck. I ensured that both keyboards were plugged into the same USB port when I tried them both, just to be sure it wasn't a faulty USB port problem.

Could it be that the aluminum keyboard, due to its USB hub, draws too much power from the Mini's power supply, so that it isn't loaded until after the boot sequence is finished? I do have other evidence which may support this theory.

I attached an external USB-powered hard drive to one of the keyboard's ports, and I received the "Device is drawing too much power" error message from the Mini. However, when I plugged the exact same keyboard and external into a Macbook Pro, there was no issue, and the drive was recognized normally.

It could be that the Mini's PSU isn't powerful enough to supply the necessary current to the keyboard's hub, and hence it is ignored at bootup. Is this true, or is there something else I am missing entirely?

⟐ Answered 12월 28, 2012 at 19:08 GMT-7

I had what seems to be a classic error while upgrading my Mid-2011 Mac Mini hard drive to an SSD and broke my IR connector. I unfortunately didn’t grab a picture and don’t especially want take it apart again.

What I did was attempt to pry up the clip and 3/5 of the connector bay came up with it. So part of the bay is still attached, although one pin came off entirely, and the rest is just floating there.

From what I gather thus far in my reading, I can live without the IR connector as I don’t use a remote and don’t care about the on light.

My question is, however: am I going to cause a short or any ill-fate to my computer by just leaving this connector hovering above the spot it’s supposed to attach to the logic board? Do I need to either fix it or remove it entirely?

Thanks for your help!

Graham

⟐ Commented 8월 26, 2024 at 16:54 GMT-7

I read that is possible to install 16GB ram (2x8) 1333 MHz and it works well, but is it possible to install 16GB kit (8GBx2), 204-pin SODIMM, DDR3 PC3-12800? Thanks

⟐ Answered 10월 24, 2021 at 0:45 GMT-7

I think i did everything right but now i cannot initialize the SSD not formatted and I receive a "Unable to write to the last block of the device" error when i try to create a new partition.

Screenshots / Pictures :

https://www.dropbox.com/sh/12fcg738jzuxr...

Any idea here ?

Best

Alex

⟐ Answered 9월 22, 2020 at 20:24 GMT-7

Oh--and is it SATA III or II?

And, if this were to be a "go," is a hardware Zero Striped RAID utterly out of the question? In countless benchmarks, Zero Striped RAIDs have shown a 90 - 100% increase in read/write bandwidth over single drives, and hard drives are the "weakest link" in feeding RAM to in turn feed the CPU (which is tapping its foot waiting).

I know there are software RAIDs, but parity calculations are performed by the CPU, and I don't know what kind of overall system performance hit this exacts. Do software RAIDs increase performance AT ALL? (Good RAID cards have high clock speed on-board I/O processors that takes care of all of this.)

The benchmarks that are coming out show that the "Server" mini is the fastest (like 33% faster than the best configured dual-core mini). For a little more, the server model gives you two 500GB hard drives and a quad-core i7 with 6MB L3 cache.

But it accomplishes this impressive speed while equipped with only the effete Intel integrated graphics (which suggests to me that Grand Central Dispatch and libdispatch have advanced far more than OpenCL and any other GPGPU considerations -- as the AMD/ATI discrete graphics doesn't seem to be helping much over the Server mini's Intel integrated graphics, no?).

Finally (I lied. I've asked more than one question, but at the outset, I had only one -- I SWEAR!), what's with IR?

Why not Bluetooth for remote control? In my living room, when someone is relaxing in the recliner near the TV, I have to stand up, raise the remote over my head every time I want to change channels, operate the DVD player, or DVR. I see no excuse to sort of "deprecate" IR on computers, TVs and all other consumer electronics in favor of Bluetooth.

Finally (I mean it this time) what's with "Near Field Communications"? Again, why not Bluetooth?

Thanks and sorry,

Michael Donahue

⟐ Answered 9월 21, 2024 at 13:43 GMT-7

How difficult it is (if possible)?

⟐ Commented 1월 13, 2022 at 4:32 GMT-7

⟐ Comment deleted 12월 06, 2020 at 11:18 GMT-7

⟐ Commented 2월 08, 2020 at 20:14 GMT-7

⟐ Answered 6월 21, 2010 at 18:03 GMT-7

I just installed a new Crucial M500 drive into my 2009 2.0 GHz Mac Mini.

I created a bootable USB using Disk Creator and attempted to boot from it so I can load the OS onto the new drive... but I keep seeing the No Entry icon.

Did I need to format the SSD first? I have no idea how to load a fresh OS onto the new drive and could use a pointer in the right direction.

Thanks!

⟐ Answered 2월 28, 2020 at 8:13 GMT-7