IMac G5 fan always at maximum speed after booting into si...

IMac G5 fan always at maximum speed after booting into single-user mode in 10.4.3
Model: 1.6GHz iMac G5 with 10.4.3
I updated my iMac to 10.4.3, then booted into single-user mode to do some cleaning at the command-line level. I know, as others have discovered, that in single-user mode, the thermal control is off, so the fan gradually increases up to maximum speed and stays there until you reboot or go into multi-user mode. Well, I have never experienced this one before, and I'm freaking out about it... I went into single-user mood one reboot after upgrading to 10.4.3, and after all the println white text lines ended, the [1] fan shot up to maximum speed in 0.35 seconds (it sounded like a high-pitched DJ record scratch during the time interval), [2] the fan stayed at maximum speed when I left single-user mode, and [3] I cannot get the fan to slow itself! I rebooted, shut down, and even tried booting off the Tiger CD, but the instant I hit the power button to turn on the iMac, the fans blast up to maximum speed. They shut down when I put the iMac to Sleep, but then they blast up again in full when it wakes up. I checked my settings in the Energy Saver preference pane, and I have the performance set to "Reduced," which is the lowest possible.
I searched to see if anyone else had this problem or if the KBase had any info, but I didn't see any. I'm thinking about erasing and installing my stuff on the iMac, even though I just did that today.
Again, this maximum speed fan problem is freaking me out. It just started when I booted into single-user mode in OS X 10.4.3. I have booted into single-user mode before (10.4.2) and have not experienced this fan issue. I repeat, the fans blast up to maximum speed after pressing the power switch to turn on the computer, so they do not even wait for the Apple logo to show up on the screen before blasting away. How can I get these fans to not do this anymore?!

for the last few months my 20" 1.8GHz Imac has been very noisy - fans seem to run constantly and noisily. It might have been when updating to Tiger but I was never sure. Today, on the advice of a chat tech, I opened the case and reset the SMU to hopefully cure another problem. I noticed that all the air vents, intake and expel ones, were all quite heavily clogged up - not blocked but clogged with dust and fluff. I cleared it away mainly by blowing but also with a hand held hoover held close by. The exposed fan still as a lot of muck on it but greatly reduced and all the vents are completely clear. Having put everything back together again the iMac has been runnning quietly all day. May have been the SMU reset but equally might just be that the computer couldn'tdraw in cool air, circulate it or expel it properly and the fans had to work overtime to cope. Worth checking if you have noisy fans running at speed constantly.

Similar Messages

Regardless of temperature fans always at maximum speed

Hey,
I have a 'Refurbished 15.4-inch MacBook Pro 2.6GHz Quad-core Intel i7 with Retina Display'
It was working fine until yesterday (I've had it 11 months) when the fans decided to just stick to max spin rate (5900 odd) i tried the SMC reset. It did nothing. Reformatted the whole Macbook, even while reformatting the fans were going at maximum.. still the same problem. Did a hardware test and it just returned a SATA problem which i googled and most people said you can ignore it.
It was left off all night and when i came to use it the next day it was actually okay (Was at or around 3000) for about 30 minutes now it's just back to maximum again. Even if i have no programs open and the activity monitor shows CPU load has like 99% idle CPU the fans still run at maximum. It's okay for the most part besides the noise until it gets to a point where the whole computer slows to a crawl. Everything is delayed by like 10-15 seconds even if i have no programs open. The only way i've found to fix that is to shut it down for 5m or so, after booting it again fans still stay at maximum speed but it's usable again.
I have a genius appointment Monday but is there anything else i can try between now and then? I've just got a feeling they are gonna make me pay for any problem even though it's still in Warranty because it was dropped 4 months or so ago but the problems only started yesterday. I did actually go to Apple when it was dropped but i couldn't afford the screen replacement but i still feel like the will pin any fault on me causing it as opposed to anything else.
Thanks.

It was looked over and they said the only thing was the screen. Why would a temperature sensor be fine for 4 months after it supposodely broke?

New mac 21,5, fan run at maximum speed, + sleep down every 12 secondes

Hi,
On a new Imac ( 2 weeks), suddenly fans run at maximum speed after you turn it on.
I tried to reset SMC as described on article TS1433 without success.
I've got another problem, when my imac sleep down, it wakes up by itself and goes to sleep every 12 seconds. If I reboot, it stay on until the next sleep down.
Any idea ??
Bruno

Sounds like a candidate for return. My new 21.5 has worked flawlessly 99.9% of the brief time I've had it (since early November).
The one time I had a problem with it, the fan went into hyperdrive and the noise was deafening (and I'm hard of hearing). I don't remember doing anything wild at the time. I'm not sure I even had BootCamp up with Win7 at that time.
Anyway, I turned the computer off, waited a couple of minutes and then turned it back on and it was back to quiet mode again. Never happened again (at least with me in the room).
Couldn't be happier with the computer! Besides all the OS X stuff, it runs Win 7 in BootCamp probably as well as any Windows computer and maybe even better.

TS1433 Fans run at full speed after computer turns on

Fans run at full speed after computer turns on, and a lot of times while i'm working they suddenly start blowing and won't stop. Tried the reset SMC, nothing happens. Also the unplug powercord-method does nothing.
Anyone?

Exactly what method did you use to reset the SMC, every Mac has different methods and I want to ensure you used the method for an Intel based Imac. The correct instructions are in the iMac SMC and PRAM reset link. Do the SMC reset at least 2X!

Brasero, xfburn, bashburn burning always with maximum speed.

Hello,
I have big problem with burning CD, all apps from topic title burning my discs (CD and DVD) always with maximum speed (even if I choose lowest speed). It starts with 2.6.34 and remains with 2.6.35. Addition, very often it breaks my cd's or dvd's.
Could anybody help?
uname -a
Linux d530 2.6.35-ARCH #1 SMP PREEMPT Sat Aug 14 20:57:39 UTC 2010 i686 Intel(R) Pentium(R) 4 CPU 2.66GHz GenuineIntel GNU/Linux
lshal -u storage_model_iHAP322___8
udi = '/org/freedesktop/Hal/devices/storage_model_iHAP322___8'
block.device = '/dev/sr0' (string)
block.is_volume = false (bool)
block.major = 11 (0xb) (int)
block.minor = 0 (0x0) (int)
block.storage_device = '/org/freedesktop/Hal/devices/storage_model_iHAP322___8' (string)
info.addons = {'hald-addon-storage'} (string list)
info.capabilities = {'storage', 'block', 'storage.cdrom'} (string list)
info.category = 'storage' (string)
info.interfaces = {'org.freedesktop.Hal.Device.Storage', 'org.freedesktop.Hal.Device.Storage', 'org.freedesktop.Hal.Device.Storage.Removable'} (string list)
info.parent = '/org/freedesktop/Hal/devices/pci_8086_24db_scsi_host_scsi_device_lun0' (string)
info.product = 'iHAP322 8' (string)
info.udi = '/org/freedesktop/Hal/devices/storage_model_iHAP322___8' (string)
info.vendor = 'ATAPI' (string)
linux.hotplug_type = 3 (0x3) (int)
linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:1f.1/host1/target1:0:0/1:0:0:0/block/sr0' (string)
org.freedesktop.Hal.Device.Storage.method_argnames = {'extra_options', 'extra_options'} (string list)
org.freedesktop.Hal.Device.Storage.method_execpaths = {'hal-storage-eject', 'hal-storage-closetray'} (string list)
org.freedesktop.Hal.Device.Storage.method_names = {'Eject', 'CloseTray'} (string list)
org.freedesktop.Hal.Device.Storage.method_signatures = {'as', 'as'} (string list)
storage.automount_enabled_hint = true (bool)
storage.bus = 'pci' (string)
storage.cdrom.bd = false (bool)
storage.cdrom.bdr = false (bool)
storage.cdrom.bdre = false (bool)
storage.cdrom.cdr = true (bool)
storage.cdrom.cdrw = true (bool)
storage.cdrom.dvd = true (bool)
storage.cdrom.dvdplusr = true (bool)
storage.cdrom.dvdplusrdl = true (bool)
storage.cdrom.dvdplusrw = true (bool)
storage.cdrom.dvdplusrwdl = false (bool)
storage.cdrom.dvdr = true (bool)
storage.cdrom.dvdram = true (bool)
storage.cdrom.dvdrdl = true (bool)
storage.cdrom.dvdrw = true (bool)
storage.cdrom.hddvd = false (bool)
storage.cdrom.hddvdr = false (bool)
storage.cdrom.hddvdrw = false (bool)
storage.cdrom.mo = false (bool)
storage.cdrom.mrw = true (bool)
storage.cdrom.mrw_w = true (bool)
storage.cdrom.read_speed = 2117 (0x845) (int)
storage.cdrom.support_media_changed = true (bool)
storage.cdrom.support_multisession = true (bool)
storage.cdrom.write_speed = 8468 (0x2114) (int)
storage.drive_type = 'cdrom' (string)
storage.firmware_version = 'UL14' (string)
storage.hotpluggable = false (bool)
storage.lun = 0 (0x0) (int)
storage.media_check_enabled = true (bool)
storage.model = 'iHAP322 8' (string)
storage.no_partitions_hint = true (bool)
storage.originating_device = '/org/freedesktop/Hal/devices/computer' (string)
storage.partitioning_scheme = '' (string)
storage.removable = true (bool)
storage.removable.media_available = false (bool)
storage.removable.support_async_notification = false (bool)
storage.requires_eject = true (bool)
storage.size = 0 (0x0) (uint64)
storage.vendor = 'ATAPI' (string)
lshw -C storage
WARNING: you should run this program as super-user.
*-ide:0
description: IDE interface
product: 82801EB/ER (ICH5/ICH5R) IDE Controller
vendor: Intel Corporation
physical id: 1f.1
bus info: pci@0000:00:1f.1
logical name: scsi1
version: 02
width: 32 bits
clock: 33MHz
capabilities: ide bus_master emulated
configuration: driver=ata_piix latency=0
resources: irq:18 ioport:1f0(size=8) ioport:3f6 ioport:170(size=8) ioport:376 ioport:14a0(size=16) memory:80101000-801013ff
*-ide:1
description: IDE interface
product: 82801EB (ICH5) SATA Controller
vendor: Intel Corporation
physical id: 1f.2
bus info: pci@0000:00:1f.2
version: 02
width: 32 bits
clock: 66MHz
capabilities: ide bus_master
configuration: driver=ata_piix latency=0
resources: irq:18 ioport:14d0(size=8) ioport:14e8(size=4) ioport:14d8(size=8) ioport:14ec(size=4) ioport:14b0(size=16)
*-scsi
physical id: 1
bus info: scsi@4
logical name: scsi4
capabilities: scsi-host
configuration: driver=usb-storage
Last edited by szamot83 (2010-09-01 17:27:26)

bump

Fan spinning in maximum speed

Hello ,
let me know , is it normal fan spinning in maximum speed continually when playing games ?
Thanks .

Ive been doing some research on your gpu friend, ypur gpu component is not what we would consider gaming certifide, and also seeing as how your product is 4 years into its life cycle we can expect it to react the way it is now (my opinion) you may correct me if im wrong.
Anyway if at all possible delet drivers and software from system, be sure to download the newest whql drivers from AMD and also on there site the have a recomended way for you to do so, that should minize the driver store from taking on any misconfigurations from before. As a reference on the AMD site it should be along the lines of installing new drivers and deletings drivers, read through them both to be sure, hopefully it should help you out a bit but hope for best and expect the worse.
Time to put her to bed and get a new gaming campanion bro.
Good luck.
Pavilion 17-e188sd Notebook PC
AMD E1-2500 Radeon 8200
Samsung SSD EVO 840
Corsair DDR3 8192 MB RAM
QC 802.11bgn/BT/Win 8.1 64 bit

Satellite Pro P100 GPU Fan off or full speed after Bios-update to 4.20

Hello,
after installing the brandnew Bios-update 4.20 the GPU fan is when the notebook is cool off. While working with it the GPU temperature rises up to 100C (very very hot), then the fan begins to run on medium speed and the GPU cools down. After a restart, eg. next day, the fan always runs on medium or high speed (very noisy!!). With the the bios version before this problem didn't appear.
Has someone the same problem with his notebook?
Did anyone have the Bios-update before 4.20 and can send it to me???
Greets
Rommulaner

Hi all,
I've got a similar problem. After updating the BIOS of my SP P100 (PSPAHE) to 4.2 on of the fans runs constantly. I was very astonished about the WinPhlash Software anyway: I just wanted to see what it looks like, and it started updating BIOS virus-like automatically without any message or confirmation etc.
With the first reboot I got a bluescreen immediately after Vista started booting. With the following reboot, the system started properly - everything seemed to be ok. Since then the system obviously can't control the fan anymore.
The bluescreen-error is reproduceable - it occurs after each trial. I already tried to update BIOS with a freshly installed Vista (Recovery DVD) bfore installing a single problem - same result.
I only see 2 possibilities to perhaps solve the problem: hopefully a re-downgrade to 4.0 can successfully be done. Second possibility would perhaps be to remove Vista and install XP instead hoping that the BIOS update doesn't hang up then.
Unfortunately, the previous BIOS version is not on the support pages. . If anyone gets hold of it pls. post here.

When SLEEP is selected manually the fan spins at maximum speed non-stop

Hi,
I have HP Pavilion Elite HPE-180t PC, WIndows 7, Home Premioum, 64 bits.
Occasionally, I put the PC into sleep mode manually if I am finished with my work. Here are the steps I do:
1. Press Start
2. On the Shut down drop down list select Sleep
3. PC turns the fan speed up for a few seconds and then goes to sleep with the power button changing color from blue to yellow.
But once in a while on the third step the fan speed is cranked up to maximum (quite noisy), the button goes from blue to yellow, but the fan keeps running at maximum speed non-stop.
In these situations pressing any key on the keyboard doesn't affect this state i.e. the fan keeps running, and the PC is unresponsive to any keyboard or mouse input.
The only way I found to remedy this case is to press and hold down the power button until the fan stops and the PC shuts down completely.
Any suggestions on how to avoid the freeze up while going to sleep mode manually?

Hi,
I have the same motherboard in my HP e9280t. Open up your PC and use a can of compressed air and blow the dust out of the CPU heat sink, power supply, video card and system fans.
Open up the RUN window and enter: msinfo32
If msinfo32 doesn't show the bios level then you will have to boot into computer setup and find the bios level.
Look for the bios level. Bios version 5.29 is the latest and I have been running that level for a long time without issues.
HP DV9700, t9300, Nvidia 8600, 4GB, Crucial C300 128GB SSD
HP Photosmart Premium C309G, HP Photosmart 6520
HP Touchpad, HP Chromebook 11
Custom i7-4770k,Z-87, 8GB, Vertex 3 SSD, Samsung EVO SSD, Corsair HX650,GTX 760
Custom i7-4790k,Z-97, 16GB, Vertex 3 SSD, Plextor M.2 SSD, Samsung EVO SSD, Corsair HX650, GTX 660TI
Windows 7/8 UEFI/Legacy mode, MBR/GPT

My iMac G5 Fans run at full speed when using regular everyday applications.

When using just normal everyday applications such as using about 30 min of Safari to surf the web or maybe something else, my fans run at full speed. I have just got a new logic board replacing my old faulty one. How can I fix the fan problem?
Thanks!

Hi again Miriam,
With more news for you and iMacG5 on the fans go crazy. I just got back my computer from the repair center. After more than a week under observation, the technician told me that they just couldn't replicate the problem. They had the computer running non-stop during all this time, not even allowingit to go to sleeo mode and nothing.
The CPU fan never went beyond 2300 rpm (or so) and never went to sleep mode on and off by itself. Furthermore, they ran all possible tests and everything comes back as OK.
Right now I have a movie running on the background, together with a photo processing software open and other smaller processes and the CPU fan is running at 4361 rpm !!! the temp of the CPU is 66.3 Celsius.
Any thoughts??? It's really making me crazy because the computer was neverlike this and now it sounds like a hair dryer. I emphasized with them the fact that this just started after they changed the logic board and as coincidence after Ioaded the security update 2006_04. The technician told me it may be software related. If the computer doesn't go to sleep by itself, then he recommended to reload the operating system.
Any comments appreciated.
Zwirek

865PE Neo2 north branch fan always running full speed

Core Center does not seem to work. I have the latest version and it is quiet for first 5 minutes, then it gets louder and louder. I have replaced the NB fan once and that seemed to help for a while, but now it is always running at full speed. The fan goes to full speed even when no one is using the computer for 1/2 hour.
1) How to troubleshoot?
2) Are there other fan speed control programs that actually let you control the speed of the fans?

Try SpeedFan. If your mobo's sensor chip is supported by Speedfan, you can adjust the fanspeed with it.
Another option would be to replace the NB fansink with a Zalman fanless northbridge heatsink like the NB47J... I got a 865PE Neo2-V board and it came with a passive heatsink, so a passive heatsink might work OK for yours as long as you got good case airflow.
Good luck.

MSI 970a-g43 CPU fan always at 100% when fast boot or MSI Fast Boot is enabled

I turned on fast boot in my motherboard in my BIOS but now whenever I boot into windows the CPU fan is always at 100%. I really like the performance gain from fast boot, however I can't stand the CPU fan always at 100%. The fan normally runs at ~1150rpm when its off but when its on it runs full blast ~2800rpm.
My specs are:
MSI 970a-g43
AMD FX 6300
MSI HD 7870 OC Edition (Flashed with GOP vBios)
2x4 8gb DDR3 g.skillz ram

I have it set to 55c smart fan control in the BIOS. With fast-boot off it works perfectly. It seems like its not lowering the fan like it normally does when its on. If I go into the BIOS and reset it it'll work fine the first time, but after that it'll do the 100% fan speed all the time.

When I start up my new Imac with my password, it works but after going into sleepmode, I can't go out of the sleep moed with this password

I did the configuration of my new Imac and entered and confirmed my password when asked.
When my computer is switched of, I can startup with this password but after going into sleepmode, this password doesn't work.
The same when I go to "system preferences" users & groups, it's not possible to unlock the lock with this password
I'm sure that I never used another password.

If Apple was the one that replaced the ribbon cable, return it. If not, run AHT (Apple Hardware Test).
Using Apple Hardware Test to troubleshoot a hardware problem
Your issues might be caused by a hardware problem. Running Apple Hardware Test can help you solve this problem by showing you the faulty hardware.
Shut down the computer by going to Apple () > Shut Down…
Select Shut Down or allow the computer to shut down automatically.
Plug in the MagSafe power adapter into a power source and then connect it to your Mac if you have not already done so.
Press the Power Button to turn on the computer.
Press and hold the D key on the keyboard before the grey starting screen appears.
Continue to hold the D key until the loading screen shows up. You should see a globe.
When AHT has loaded, select your Language and then press the Return (↩) key.
Select the Perform Extended Testing checkbox located under the Test button.
Press the T key, select the Test button, or press the Return (↩) key to start running the diagnostics.
Report any issues it shows in a reply.
I hope I helped.

No reboot after booting into safe mode

For a few years I've just ignored the problem but thought I should take time to mention it now.
When I boot into Safe Mode (holding down the shift key during boot up) I can always click on restart when the password screen comes up and the computers will restart.
But if I log in after safe boot and let the system boot up past the login screen THEN try a restart I get hours of beach ball. I've left various computers running over night and it is always the same in the morning, no restart, no beach but lots of beach ball.
So I do a force shutdown (hold the on/off button for 10 seconds) or a forced restart.
This has been the case from Leopard OSX10.5 and up including Snow Leopard. And on five different Intel Core 2 Duo Macs including 2GHz & 2.4 GHz iMacs and Macbooks.
The common theme is that I have migrated my setup through all these Macs so maybe there is some legacy thing in my software.
Suggestions?

Well… some improvement.
Here’s what I did: (note that I did a restart and sometimes safe boot after each and every step.
1 – use FontNuke (free shareware) to blast away font cache files. It found 8 some dating from 2002.
2 – use Apple’s Font Book to reconcile duplicate fonts.
Those two steps fixed my slow down problems with playing movie files in Quicktime and VLC.
But not Skype video. The biggest CPU load with Skype is with the transmitted picture oddly enough.
Then for good measure I zapped the PRAM and PMU. No noticeable improvement from doing those. Obliviously repair permissions and verify disk was done long long ago and redone.
I still have the problem of not being able to reboot from safe mode.
The Startup folders are clean except for Qmaster which I do not believe is the cause of not being able to reboot out of safe mode.
Does anyone know of other files/locations that put 3rd party startup items? I remember finding things from Western Digital and Symantic a few years ago in unexpected places. Symantic was especially hard to track down and eliminate.

Blue screen - after booting into Darwin/BSD

Hi,
after I had the problem of my iMac G5 only booting into Darwin/BSD (which I posted here: http://discussions.apple.com/thread.jspa?threadID=1093517&tstart=0), I followed the instructions for recreating the user accounts, as described here: http://discussions.apple.com/thread.jspa?threadID=320663&start=0&tstart=0
Now I'm able to get to the blue screen, and the system doesn't exit into Darwin/BSD any longer. However, the Setup Assistant doesn't start either.
I only see an empty blue screen (I guess it's the GUI base screen) and the menu bar. The menu bar only has to items: one menu 'loginwindow', which doesn't have any entries. And the Apple-logo menu, which has the following menu entries:
- About This Mac
- Software Update...
- Mac OS X Software...
- System Preferences...
- Dock >
- Location >
- Force Quit...
- Sleep
- Restart...
- Shot Down...
- Log Out System Administrator...
The 'Restart...' entry doesn't work. I can, however, launch the System Preferences window.
Tail command of /var/log/System.log shows:
configd[41]: WirelessConfigure: 88001003
kernel[0]: Registering For 802.11 Events
kerner[0]: [HCIController][setupHardware] AFH Is Supported
kernel[0]: ATY,Aphrodite2_A: vram [98000000:08000000]
mDNSResponder: Couldn't read user-specific Computer Name; using default bMacintosh-0014513219B8b instead
kernel[0]: ATY,Aphrodite2_B: vram [98000000:08000000}
mDNSResponder: Couldn't read user-specified local hostname; using default bMacintosh-0014513219B8.localb instead
/System/Library/CoreServices/loginwindow.app/Contents/MacOS/loginwindow: Login Window Application Started
loginwindow[141]: [Login.m:1867] Failed to launch /Applications/Server/Server Assistant.app/Contents/MacOS/Server Assistant (error -1)
mDNSResponder: Adding brows domain local.
Any recommendations on what to do next?
Thanks!
Torsten

Apologies, was a little vague. and as far as my profile goes i have loads of mac's here in the studio.
using MBP latest model, Snow Leopard with latest updates.
1. boot up in windows XP SP3 (bootcamp NTFS formatted 32GB partition) - all ok
2. shut down windows and re boot in OSX
3. boots up but fails to complete and hangs on blue screen (just prior to desk top picture loading)
4. press and hold power button to shut down
5. reboot in OSX - boots up fine this time

No SATA drive after booting into Windows (BootCamp 5.0)

One of my DVD burners has failed in one of my 2008 Apple Mac Pro's. I pulled the drive out (it was PATA/IDE) and replaced with a new LG WH14NS40 Blu-Ray Burner. I had to pull the fan out (temporarily) and run a new 24" SATA cable (with right-angle connector) from one of the two extra SATA ports (on the motherboard) to the new actual SATA drive, and also install a MOLEX to SATA power connector.
I managed to get the drive installed (and working). I now at least have a Blu-Ray burner in my 2008 Apple Mac Pro (with OS X 10.8.3 Mountain Lion).
The problem seems to be with when I boot directly into Windows 8. When I boot into Windows 8, the two ports on the motherboard are disabled and the latest BootCamp 5.0 drivers don't seem to support the two SATA ports on the motherboard (they seem to be disabled). So when I boot directly into Windows, my LG WH14NS40 Blu-Ray drive disappears.
I really wish Apple would have just "done things right" from the very beginning and took the time to write decent BootCamp 5.0 drivers that supported the two SATA ports on the motherboard, so that users who need to replace their old/dying/aging PATA drives could easily replace them with SATA drives and use the two SATA ports on the motherboard.
Also it would have been nice if Apple would have taken the time to write good BootCamp 5 drivers (for Windows 8) that support booting from the two SATA ports on the 2008 Apple Mac Pro motherboard.
I've heard of many people that have tried installing RAID Controller Cards (from OWC) in their 2008 Apple Mac Pro to upgrade their four hard drive caddys from SATA II (3Gbps) to SATA III (6Gbps) but unfortunately the RAID Controller Cards don't seem to be bootable and the only option is to install a fifth (bootable) hard drive into the Apple Mac Pro and this is normally done by installing a bootable SSD drive into one of the DVD-drive bays. Unfortunately if you use a SATA SSD drive (which most SSD's are SATA) and then use one of the two SATA ports on the motherboard to connect it, then you go back to having the problem of not having a boot drive when you boot directly into Windows 8 (since there are no BootCamp 5 drivers for the 2008 Apple Mac Pro that support the two SATA ports on the 2008 Apple Mac Pro motherboard).
This seems to be a never-ending problem, and we have twelve 2008 Apple Mac Pro's (along with an office full of 2008/2009/2010/2013 Apple Mac Pro's) and we're getting extremely frustrated with Apple's lack of support in BootCamp 5.0 drivers for the 2008 Apple Mac Pro (and the two SATA ports on the mainboard).
Please fix this problem, and please update the BootCamp 5.0/5.1 drivers (for 2008 Apple Mac Pro users) and please support the two SATA ports on the Apple Mac Pro mainboard, and please make those two SATA ports on the motherboard bootable and usable in both Microsoft Windows 8 and in OS X 10.8.3 Mountain Lion. Please update the BootCamp 5.0 drivers to support the two onboard SATA ports in Windows 8 (so that my Blu-Ray burner is viewable/usable in Windows 8).

Just as a follow-up, yes it does seem to be possible to get both SATA ports on a 2008 Apple Mac Pro working (in Windows 8).
You need to enable AHCI in Windows 8.
First boot into Windows 8 and then go into the windows registry (regedit) and enable AHCI in your registry.
You can do this by going to the following registry key:
Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\storahci
Set the "Start" Value data to "0" (to enable AHCI in Windows).
After AHCI is enabled in Windows, then reboot your computer and now the SATA drive (connected to the ODD port) should appear in Windows (under devices).
Now the next step is to update your AHCI drivers (in Windows) to the latest Intel drivers, so that your SATA device will actually work (and work properly).
The latest Intel RST drivers can be found here: https://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&ProdId=2101&DwnldID=2306 0&ProductFamily=Software+Products&ProductLine=Chipset+Software&ProductProduct=In tel%C2%AE+Rapid+Storage+Technology+(Intel%C2%AE+RST)&lang=eng
Download the 64-bit drivers (if you are running 64-bit Windows).
After you install the latest drivers, and perform a reboot, your SATA drive should now work under windows.
You can find a long detailed thread about enabling AHCI (in Windows 7) here: http://forums.macrumors.com/showthread.php?t=760482
The thread listed above is a bit old/dated (2009?) but it does give detailed step-by-step instructions for those that want to enable AHCI (and get those two onboard SATA ports working in Windows 8 or Windows 7).
I managed to get everything working in Windows 8, and I was able to enable AHCI in Windows 8, installed the latest AHCI drivers and I'm now able to use my SATA Blu-Ray burner in my 2008 Apple Mac Pro.
Hope this helps!
-> Mark

IMac G5 fan always at maximum speed after booting into si...

Similar Messages

Maybe you are looking for