G5 Troubles

2013-07-29 Thread Ken Daggett


I picked up a G5 dual 2.0 PCI-x a couple of days ago. The hard drive  
had been wiped, but it started right up to the flashing ?


I stuck in a retail 10.3 disk and installed and then upgraded to  
10.4.11. It ran for a day or so and even successfully started Classic.


Then, after a day of running properly, it won't launch. It does start  
with the proper Chime but then shows only a blank screen for  
several minutes before the fans gradually increase speed to max.


I have:

Reset NVRAM in Open Firmware: No change.

Reset PRAM; No change.

Installed new PRAM battery: No change.

I opened it up, wiped all the fans clean, blew out a bit of dust. No  
change.


I am looking for ideas from anyone who has more experience with this  
machine that I do.


I have taken apart and put into operation most other types of Macs,  
from a 128 through DP Mirror Door, and a few PowerBooks, so I thought  
I might be able to save this machine from the scrappers. HELP!


Ken

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Re: G5 Troubles

2013-07-29 Thread John Carmonne

On Jul 29, 2013, at 1:14 PM, Ken Daggett wrote:

 
 I picked up a G5 dual 2.0 PCI-x a couple of days ago. The hard drive had been 
 wiped, but it started right up to the flashing ?
 
 I stuck in a retail 10.3 disk and installed and then upgraded to 10.4.11. It 
 ran for a day or so and even successfully started Classic.
 
 Then, after a day of running properly, it won't launch. It does start with 
 the proper Chime but then shows only a blank screen for several minutes 
 before the fans gradually increase speed to max.
 
 I have:
 
 Reset NVRAM in Open Firmware: No change.
 
 Reset PRAM; No change.
 
 Installed new PRAM battery: No change.
 
 I opened it up, wiped all the fans clean, blew out a bit of dust. No change.
 
 I am looking for ideas from anyone who has more experience with this machine 
 that I do.
 
 I have taken apart and put into operation most other types of Macs, from a 
 128 through DP Mirror Door, and a few PowerBooks, so I thought I might be 
 able to save this machine from the scrappers. HELP!
 
 Ken
 
 --


Unplug all cables including AC, Press CUDA switch for ten seconds. If that 
doesn't help reseat the RAM.




John Carmonne
Yorba Linda CA
92886 USA
MacPro 2.66 Quad Nehalem






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Re: G5 Troubles

2013-07-29 Thread NODEraser
On Jul 29, 2013 1:14 PM, Ken Daggett kadagg...@gmail.com wrote:

 Then, after a day of running properly, it won't launch. It does start
with the proper Chime but then shows only a blank screen for several
minutes before the fans gradually increase speed to max.


Have you tried another hard drive? I had a Mini that would spin its fans up
to max on powerup, but with a blank screen. It came back to life as soon as
the sketchy drive was disconnected.

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Re: SSD in a G5

2013-07-29 Thread Martin N

Hello,

While trim is not going to be supported (unless 
there is some third party utility) The SSDs firmware

will perform the garbage collection without the OSes help.

I was thinking about a velociraptor myself for a 
fast boot drive but what about a segate momentus

hybrid SSHD?
It caches reads and learns the most used programs like those used at boot.
Writes are just the same as a spinner though.

Not sure about the noise of the raptor as well as 
the SSHD will be faster assuming the firmware

GC is up to the job.

Martin N

At 03:00 25/07/2013, you wrote:
Trim is outside the realm of possibility. Not 
sure If doing an erase free space procedure 
monthly or so would help a bit. Modern drive 
garbage collection is pretty good. Anybody got 
any benchmarks? I picked up a velociraptor to 
use in an old G4 rather than try to work through SSD issues.


Sent from my mobile device.

On Jul 24, 2013, at 7:58 PM, ah...clem 
mailto:boneheads...@gmail.comboneheads...@gmail.com wrote:


anyone had success putting an SSD in a G5 and 
getting the maximum speed out of it?  issues 
i'm aware of include the native SATA-1 
interface, which will limit speed to a 
theoretical max of 187.5 MB/s, regardless of 
how fast the SSD itself is.  the way around 
that is to use an expansion slot and a SATA-2 
or SATA-3 controller.  problem is, i'm having a 
hard time finding a PCI-e SATA-3 controller 
that's compatible and bootable.  i tried one of 
the Apricorn Velocity Solo cards (PCI-e/sata-3 
controller and carrier for 2.5 SSD), and it is 
indeed bootable in a 2009 MacPro, but it is 
invisible in my G5 quad.  system profiler and 
disk utility don't even know it's there.  it's 
supposed to work in ANY computer with a PCI-e 
slot.  waiting to hear back from customer support.


one bit of good news i can share is that at $43 
(sans drive) it was an appealing alternative to 
the much more costly Sonnet cards, and 
outrageously expensive Accelsior cards, and it 
works flawlessly in a MacPro, delivering a 
read/write speed of 480 MB/s (if your SSD is up 
to it), just not the G5 i intended it for.


anyone have any other suggestions, or success 
stories with other hdwe?  TIA for all replies.


Those who would give up essential Liberty, to 
purchase a little temporary Safety, deserve neither Liberty nor Safety.
Benjamin Franklin (1706–90) 


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Re: G5 Troubles

2013-07-29 Thread Ken Daggett


On 29 Jul 2013, at 15:14:29 PDT, NODEraser wrote:

Have you tried another hard drive? I had a Mini that would spin its  
fans up to max on powerup, but with a blank screen. It came back to  
life as soon as the sketchy drive was disconnected.

---
Haven't tried a new HD as I don't have any serial ATA drives on hand.  
This the first machine (other than my wife's laptop) that uses these.  
I was hoping to resurrect this machine with no significant $$ outlay.


I did as John Carmonne suggested (reset CUDA and reseat RAM) but  
still no joy.


Ken

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Re: G5 Troubles

2013-07-29 Thread Kris Tilford
On Jul 29, 2013, at 6:11 PM, Ken Daggett wrote:

 I was hoping to resurrect this machine with no significant $$ outlay.
 
 I did as John Carmonne suggested (reset CUDA and reseat RAM) but still no joy.

These symptoms are similar to what happens with a partial power supply failure.

You might get a multimeter and carefully check out the voltages using this G5 
pinout diagram.

As I remember, my G5 lost all the +3.3V when it failed, resulting in a black 
boot with runaway fans.

Power Supply P1 Connector
Pin# Signal Color -- Pin# Signal Color
1 +5Vstb Purple - 13 GND Black
2 GND Black - 14 Power ON Green
3 FANtach White/Yellow -- 15 GND Black
4 GND Black - 16 Reserved
5 Reserved -- 17 GND Black
6 GND Black - 18 RTNaud(GND) Black
7 +12Vaud (12V2) Yellow - 19 GND Black
8 GND Black - 20 +5V sense Red
9 +3.3V sense Orange  21 GND Black
10 GND Black  22 -12V Blue
11 GND Black  23 GND Black
12 Reserved - 24 Reserved

Power Supply P2 Connector
Pin# Signal Color --- Pin# Signal Color
1 +3.3V Orange --- 9 +5V Red
2 +3.3V Orange -- 10 +5V Red
3 +3.3V Orange -- 11 +5V Red
4 +3.3V Orange -- 12 +12V3 Yellow
5 Reserve --- 13 +12V3 Yellow
6 +12Vfan Yellow  14 +12V1 Yellow
7 +12Vfan(12V2) Yellow -- 15 +12V1 Yellow
8 +25V White  16 RTNfan(GND) Black

Power Supply P3 Connector
Pin# Signal Color --- Pin# Signal Color
1 +5V Red  5 +5V Red
2 GND Black -- 6 GND Black
3 GND Black -- 7 GND Black
4 12V2 Yellow  8 +12V2 Yellow

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Re: G5 Troubles

2013-07-29 Thread John Carmonne

On Jul 29, 2013, at 4:35 PM, Kris Tilford wrote:

 On Jul 29, 2013, at 6:11 PM, Ken Daggett wrote:
 
 I was hoping to resurrect this machine with no significant $$ outlay.
 
 I did as John Carmonne suggested (reset CUDA and reseat RAM) but still no 
 joy.
 
 These symptoms are similar to what happens with a partial power supply 
 failure.
 
 You might get a multimeter and carefully check out the voltages using this G5 
 pinout diagram.
 
 As I remember, my G5 lost all the +3.3V when it failed, resulting in a black 
 boot with runaway fans.
 

Possibly reseat all connections on logic board? Including HDD.


John Carmonne
Yorba Linda CA
92886 USA
MacPro 2.66 Quad Nehalem






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Re: G5 Troubles

2013-07-29 Thread Clark Martin

On Jul 29, 2013, at 4:11 PM, Ken Daggett wrote:

 
 On 29 Jul 2013, at 15:14:29 PDT, NODEraser wrote:
 
 Have you tried another hard drive? I had a Mini that would spin its fans up 
 to max on powerup, but with a blank screen. It came back to life as soon as 
 the sketchy drive was disconnected.
 ---
 Haven't tried a new HD as I don't have any serial ATA drives on hand. This 
 the first machine (other than my wife's laptop) that uses these. I was hoping 
 to resurrect this machine with no significant $$ outlay.
 
 I did as John Carmonne suggested (reset CUDA and reseat RAM) but still no joy.


Try just disconnecting the HD.  If it's the HD you should get the flashing 
question mark.  If it does then stick in the boot DVD-ROM and see if it comes 
up okay.

Try pulling the PRAM battery.  I don't know if the G5 will boot this way but 
it's worth a shot.

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Re: G5 Troubles

2013-07-29 Thread Charles Lenington

On 7/29/13 7:20 PM, Clark Martin wrote:


On Jul 29, 2013, at 4:11 PM, Ken Daggett wrote:



On 29 Jul 2013, at 15:14:29 PDT, NODEraser wrote:


Have you tried another hard drive? I had a Mini that would spin its fans up to 
max on powerup, but with a blank screen. It came back to life as soon as the 
sketchy drive was disconnected.

---
Haven't tried a new HD as I don't have any serial ATA drives on hand. This the 
first machine (other than my wife's laptop) that uses these. I was hoping to 
resurrect this machine with no significant $$ outlay.

I did as John Carmonne suggested (reset CUDA and reseat RAM) but still no joy.



Try just disconnecting the HD.  If it's the HD you should get the flashing 
question mark.  If it does then stick in the boot DVD-ROM and see if it comes 
up okay.

Try pulling the PRAM battery.  I don't know if the G5 will boot this way but 
it's worth a shot.


Check the battery. Being in storage could have run down battery.

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Re: G5 Troubles

2013-07-29 Thread Kris Tilford
On Jul 29, 2013, at 10:07 PM, Charles Lenington wrote:

 Check the battery. Being in storage could have run down battery.

Yes, I 2nd this, excellent advise, and often a problem.

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Re: G5 Troubles

2013-07-29 Thread Ken Daggett


On 29 Jul 2013, at 20:15:35 PDT, Kris Tilford wrote:




Check the battery. Being in storage could have run down battery.


Yes, I 2nd this, excellent advise, and often a problem.


Well, as I mentioned, I did install a new PRAM battery, though the  
old one measured at 3.6v.


Status update: as suggested, I disconnected the HD and started. The  
machine showed the flashing ?. Put in an OS 10.4 install disk.  
Machine booted to the DVD. Shut down and reconnected the HD. Booted  
to the DVD and called Disk Utility. Drive was visible but attempts to  
Repair failed. I erased the HD, with zero out as the option.  
Installed 10.4 and updated to 10.4.11. Seems to boot OK.


The HD may be flaky as suggested, but the rest of the machine seems  
OK. I wasn't looking forward to probing the power supply pins as a  
failure there would be $$ that I would rather put to a new machine.


If the rest of the machine is good, I will try finding a 2 or 3 Tb HD  
and give it a home.


Thanks for the assist.

Ken

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