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cbster

macrumors member
Original poster
Feb 24, 2008
69
0
Orange County
I just received my new 2009 Mac Pro Quad 2.66 and I noticed istat does not show a temp for memory bank a1. It just shows banks A2 and A3. I was wondering if this normal or if I have a problem. BTW I have 3gb of ram.

I also have the power supply grinding sound, but that another story.

Thanks for any input.
 
I just received my new 2009 Mac Pro Quad 2.66 and I noticed istat does not show a temp for memory bank a1. It just shows banks A2 and A3. I was wondering if this normal or if I have a problem. BTW I have 3gb of ram.
Perhaps a couple of dumb questions, but have you tried:
1. Reseatting the RAM
2. PRAM reset

Worth a shot, and I would think Apple will ask you to do this anyway if you have to call. ;)
I also have the power supply grinding sound, but that another story.

Thanks for any input.
Have you adjusted the PSU fan speed at all?

Hope this helps. :)

If the noise remains there over a range of speeds, you may have an unbalanced fan. If it's a hum and is low, rather than a grind/growl, it's the transformer, and is normal. Clicks when you plug/unplug the power cord are also normal (relays). (Just in case). :D :p
 
I have this setup.

iStat Pro has listings for Mem Bank A2, A3, A4 and A5. No A1. All four of my RAM slots are full. Nothing seems amiss, performance-wise.
 
There is nothing wrong as I was pointing out above. iStat doesn't use A1. I have all 8 RAM slots full on mine no problems.
 
This is how iStat reports on my machine, with 4GB sticks in each slot. I think iStat needs an update for the 09 model's. It shows 8 of the 16 cores at 100% all the time. Even when I'm just writing email.
 

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So, I have 3 ram slots filled with 1gb each and temps for only A2 and A3, is that ok?
You should get an A4 temp. 3 sticks, so you should have 3 temps. ;)

Did you reseat it, and do a PRAM reset?
Simple, but you'd be surprised at how many times this solves issues. :)

Another thing to check; verify that the system shows 3GB RAM, not 2. Even after a reseat and reset. It can tell the difference if it's just the temp sensor (assuming the reseat & reset didn't solve the problem), or the entire stick isn't registering to the system.
 
You should get an A4 temp. 3 sticks, so you should have 3 temps. ;)

Did you reseat it, and do a PRAM reset?
Simple, but you'd be surprised at how many times this solves issues. :)

Another thing to check; verify that the system shows 3GB RAM, not 2. Even after a reseat and reset. It can tell the difference if it's just the temp sensor (assuming the reseat & reset didn't solve the problem), or the entire stick isn't registering to the system.

how do i get the temps of my cpus

i have a new MACBOOK AIR 2013
 
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