Couple of Questions

glen · 06-07-2006, 12:19 AM

Hi, just bought (Today!) a second hand First Generation 2 GHz DP G5.
I am running OSX 3.9
Upgrading from a G4 350 MHz, yes I am excited!

I added 2 GB PC3200 Ram, however there were 4 128 MB sticks of PC2700 Ram already installed. Should I remove/replace them?
Are they slowing things down?

Also can you recommend software to check on internal temp and whether the fans are all working.
Fans are extremely loud, well compared to my other mac.
Thanks glen

voldenuit · 06-07-2006, 12:43 AM

The RAM you have in there works by accident, your machine requires PC3200:
http://docs.info.apple.com/article.html?artnum=86414

I'd run memtestosx.org to make sure it works and check individual pairs if there were to be errors.

Temperature monitoring software can be found here:
http://bresink.de/osx/

G5 are extremely quiet unless under heavy load or in single user mode.

glen · 06-07-2006, 03:49 AM

Thanks for your input, these are the #'s I got, are they OK?
Have removed suspect Ram!

CPU A Die Temp 29.2?C
CPU B Die Temp 36.6?C
Drive Bay 25.5?C
Main Logic Board Air Inlet 128.0?C
Main Logic Board Ambient 26.9?C
Main Logic Board Backside 31.1?C
Memory Controller Heatsink 35.4?C
Processor A Ambient 30.5?C
SMART Disk ST3160023AS 29.0?C

Thinking of going back to the shop to have them look at it.

Thanks glen

voldenuit · 06-07-2006, 05:19 AM

Quote:

Originally Posted by glen


	Main Logic Board Air Inlet 128.0?C

You must either stop feeding hot air into the machine

or the temp sensor has gone wonky and therefore the G5 feels the urge to run some fans at full speed, which is indeed pretty noisy.

The off-by-100°C problem could also be in software.

Does the machine make the same amount of noise when booted from the install media or another disk ?

glen · 06-07-2006, 08:25 AM

Just booted from the Install disk to make sure: no discernible difference.

Is that a pretty definite Main Logic Board Air Inlet sensor fault?

Will call seller today!

Many thanks glen

PS Numbers on xbench way low (could that 2700 Ram have damaged somthing?

Results 43.52
System Info
Xbench Version 1.2
System Version 10.3.9 (7W98)
Physical RAM 2048 MB
Model PowerMac7,2
Processor PowerPC 970x2 @ 2.00 GHz
L1 Cache 64K (instruction), 32K (data)
L2 Cache 512K @ 2.00 GHz
Bus Frequency 1 GHz
Video Card GeForce FX 5200
Drive Type ST3160023AS
CPU Test 65.05
GCD Loop 64.94 3.42 Mops/sec
Floating Point Basic 65.79 1.56 Gflop/sec
vecLib FFT 67.49 2.23 Gflop/sec
Floating Point Library 62.21 10.83 Mops/sec
Thread Test 60.72
Computation 62.40 1.26 Mops/sec, 4 threads
Lock Contention 59.14 2.54 Mlocks/sec, 4 threads
Memory Test 52.89
System 45.73
Allocate 83.23 305.65 Kalloc/sec
Fill 33.12 1610.39 MB/sec
Copy 42.74 882.68 MB/sec
Stream 62.73
Copy 64.06 1323.19 MB/sec [G5]
Scale 66.55 1374.98 MB/sec [G5]
Add 59.50 1267.42 MB/sec [G5]
Triad 61.25 1310.36 MB/sec [G5]
Quartz Graphics Test 63.07
Line 69.44 4.62 Klines/sec [50% alpha]
Rectangle 59.79 17.85 Krects/sec [50% alpha]
Circle 61.57 5.02 Kcircles/sec [50% alpha]
Bezier 65.21 1.64 Kbeziers/sec [50% alpha]
Text 60.33 3.77 Kchars/sec
OpenGL Graphics Test 78.49
Spinning Squares 78.49 99.57 frames/sec
User Interface Test 18.46
Elements 18.46 84.73 refresh/sec
Disk Test 36.58
Sequential 35.20
Uncached Write 15.33 9.41 MB/sec [4K blocks]
Uncached Write 99.40 56.24 MB/sec [256K blocks]
Uncached Read 34.41 10.07 MB/sec [4K blocks]
Uncached Read 107.62 54.09 MB/sec [256K blocks]
Random 38.08
Uncached Write 13.68 1.45 MB/sec [4K blocks]
Uncached Write 74.36 23.81 MB/sec [256K blocks]
Uncached Read 92.87 0.66 MB/sec [4K blocks]
Uncached Read 128.95 23.93 MB/sec [256K blocks]

voldenuit · 06-07-2006, 08:40 AM

Boot off the install media, maintaining both the c and the option key, then select AHT Apple Hardware Test.
There should be a calibration option and it might fix the problem.

If the under-spec RAM worked and checks out ok with memtest there is no reason to take it out.
Failing RAM causes random kernel panics and may cause disk corruption but will not damage hardware.

You might however use that as another argument to strengthen your position with a vendor who obviously withheld information from you that would have lowered the price you'd be willing to pay.
I'd try to get a significant discount.
And probably never buy there again.

glen · 06-07-2006, 09:49 AM

Boot off the install media, maintaining both the c and the option key, then select AHT Apple Hardware Test.

No joy on the above, reinstalling incase upgrading to 3.9 from 3.2 via apple
is the reason ... no luck, option does not appear

glen

06-07-2006, 12:19 AM	#1
glen Prospect Join Date: Mar 2006 Posts: 19	Couple of Questions Hi, just bought (Today!) a second hand First Generation 2 GHz DP G5. I am running OSX 3.9 Upgrading from a G4 350 MHz, yes I am excited! I added 2 GB PC3200 Ram, however there were 4 128 MB sticks of PC2700 Ram already installed. Should I remove/replace them? Are they slowing things down? Also can you recommend software to check on internal temp and whether the fans are all working. Fans are extremely loud, well compared to my other mac. Thanks glen

06-07-2006, 03:49 AM	#3
glen Prospect Join Date: Mar 2006 Posts: 19	re couple of questions Thanks for your input, these are the #'s I got, are they OK? Have removed suspect Ram! CPU A Die Temp 29.2?C CPU B Die Temp 36.6?C Drive Bay 25.5?C Main Logic Board Air Inlet 128.0?C Main Logic Board Ambient 26.9?C Main Logic Board Backside 31.1?C Memory Controller Heatsink 35.4?C Processor A Ambient 30.5?C SMART Disk ST3160023AS 29.0?C Thinking of going back to the shop to have them look at it. Thanks glen

06-07-2006, 08:25 AM	#5
glen Prospect Join Date: Mar 2006 Posts: 19	re re couple of questions Just booted from the Install disk to make sure: no discernible difference. Is that a pretty definite Main Logic Board Air Inlet sensor fault? Will call seller today! Many thanks glen PS Numbers on xbench way low (could that 2700 Ram have damaged somthing? Results 43.52 System Info Xbench Version 1.2 System Version 10.3.9 (7W98) Physical RAM 2048 MB Model PowerMac7,2 Processor PowerPC 970x2 @ 2.00 GHz L1 Cache 64K (instruction), 32K (data) L2 Cache 512K @ 2.00 GHz Bus Frequency 1 GHz Video Card GeForce FX 5200 Drive Type ST3160023AS CPU Test 65.05 GCD Loop 64.94 3.42 Mops/sec Floating Point Basic 65.79 1.56 Gflop/sec vecLib FFT 67.49 2.23 Gflop/sec Floating Point Library 62.21 10.83 Mops/sec Thread Test 60.72 Computation 62.40 1.26 Mops/sec, 4 threads Lock Contention 59.14 2.54 Mlocks/sec, 4 threads Memory Test 52.89 System 45.73 Allocate 83.23 305.65 Kalloc/sec Fill 33.12 1610.39 MB/sec Copy 42.74 882.68 MB/sec Stream 62.73 Copy 64.06 1323.19 MB/sec [G5] Scale 66.55 1374.98 MB/sec [G5] Add 59.50 1267.42 MB/sec [G5] Triad 61.25 1310.36 MB/sec [G5] Quartz Graphics Test 63.07 Line 69.44 4.62 Klines/sec [50% alpha] Rectangle 59.79 17.85 Krects/sec [50% alpha] Circle 61.57 5.02 Kcircles/sec [50% alpha] Bezier 65.21 1.64 Kbeziers/sec [50% alpha] Text 60.33 3.77 Kchars/sec OpenGL Graphics Test 78.49 Spinning Squares 78.49 99.57 frames/sec User Interface Test 18.46 Elements 18.46 84.73 refresh/sec Disk Test 36.58 Sequential 35.20 Uncached Write 15.33 9.41 MB/sec [4K blocks] Uncached Write 99.40 56.24 MB/sec [256K blocks] Uncached Read 34.41 10.07 MB/sec [4K blocks] Uncached Read 107.62 54.09 MB/sec [256K blocks] Random 38.08 Uncached Write 13.68 1.45 MB/sec [4K blocks] Uncached Write 74.36 23.81 MB/sec [256K blocks] Uncached Read 92.87 0.66 MB/sec [4K blocks] Uncached Read 128.95 23.93 MB/sec [256K blocks]

06-07-2006, 09:49 AM	#7
glen Prospect Join Date: Mar 2006 Posts: 19	glen Boot off the install media, maintaining both the c and the option key, then select AHT Apple Hardware Test. No joy on the above, reinstalling incase upgrading to 3.9 from 3.2 via apple is the reason ... no luck, option does not appear glen

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06-07-2006, 12:43 AM	#2
voldenuit Hall of Famer Join Date: Sep 2003 Location: Old Europe Posts: 4,969	The RAM you have in there works by accident, your machine requires PC3200: http://docs.info.apple.com/article.html?artnum=86414 I'd run memtestosx.org to make sure it works and check individual pairs if there were to be errors. Temperature monitoring software can be found here: http://bresink.de/osx/ G5 are extremely quiet unless under heavy load or in single user mode.

06-07-2006, 08:40 AM	#6
voldenuit Hall of Famer Join Date: Sep 2003 Location: Old Europe Posts: 4,969	Boot off the install media, maintaining both the c and the option key, then select AHT Apple Hardware Test. There should be a calibration option and it might fix the problem. If the under-spec RAM worked and checks out ok with memtest there is no reason to take it out. Failing RAM causes random kernel panics and may cause disk corruption but will not damage hardware. You might however use that as another argument to strengthen your position with a vendor who obviously withheld information from you that would have lowered the price you'd be willing to pay. I'd try to get a significant discount. And probably never buy there again.