Mac Pro Noise Issue !

Hello everyone ! I've been hearing a noise coming from my 1st gen original mac pro for the last couple of days.It all started after I put my rams in a different riser.
First I realized that my 5Gb total ram size seemed 2Gb in the "about this mac" section.I thought that it is beacouse of having all my rams(2x512 Mb stock and 2x2 Gb OWC) on the same riser,Riser A.
I rearranged them according to the mac pro specs.I put 2x512 Mb on dimm 1&2 / Riser A and 2x2 Gb on dimm 1&2 / Riser B.I also cleaned inside of the computer with a compressor.But I still hear that noise.How can I get rid of this noise ?
By the way,I recorded the sound of noise and I want to share it with you guys so that you can hear it.But I couldn't upload/insert it to my post ???

You may want to call Apple customer care and explain your problem. It is recognized now by Apple and they are issuing logic board updates.
Some people report having more success by going to a brick and mortar Apple store and making an appointment at the Genius bar though.
It is really your choice.

Similar Messages

Mac Pro Display Issue

Mac Pro Display Issue - Unexpectedly Sleeps and Freezes
Just since a couple of days my Mac Pro desktop has been having display issues. Unexpectedly the screens go into sleep mode, it turns black and freezes, the computer doesnot respond to the keyboard or mouse.
At first I thought this was related to Chrome, and switched to Firefox, but the computer is still having the same issue. I have to shut down and restart each time it gets stuck.
I even went into preferences and changed the energy saver settings to "Never" allow display or harddrive to sleep. But this problem is stil happening.
Does anyone have the same problems? Or a solution?

I cleaned out my mac with compressed air, it was dusty, but the display flickering happened again.
So I followed your advice and installed:
Temperature Monitor
http://www.bresink.de/osx/TemperatureMonitor.html
Which showed that my memory module 1B and 2B were 70 - 75'C(160 -167'F). There was no reading for the graphic card so I couldn't tell if that was over heating.
Then I installed:
smc fan controller
http://www.macupdate.com/app/mac/23049/smcfancontrol
and increased the memory_cpu fan speed which lowered the temperature of the ram to 60'C (143'F).
I even changed this ram's placement and put it in different slots.This ram was the same temperature in the new placements.
Also this is the kingston 2gb ram without heatsinks. Ive used it for 1.5 yrs, and this is the first time its giving me these problems.
Do you know how I can check if the graphic card is over heating? or is the problem just with the ram?
Thank you for all your help!

Mac Pro Boot Issue

Mac Pro - "Quad", 2 X 2.66Ghz; 5GB RAM; OS X 10.5.6
Mac Pro will not boot. It powers up to the grey Apple logo screen. The progress circle spins for about 3 seconds, then powers itself off.
This past week I came back from two weeks off. The first morning back I noticed my Mac was sluggish at times and freezing for a few seconds here and there. When Time Machine backups would kick in, the whole system would be unresponsive for minutes at a time. After turning off all other equipment in my office, I could detect a tell-tale "click click, spin" type noise coming from one of my two internal drives (one for OS and a second for backups).
I tracked the noise to the boot drive and guessing it was about to go out, I ordered a replacement Samsung Spinpoint 750GB. Good thing, because the next day when I came in to work my machine was having worse problems. IF it would boot, it would hang after a few minutes of use. If it would not boot, it would power up to the grey Apple logo, the progress circle would spin a few seconds, the power itself off.
I waited another day and the new drive arrived. I pulled the old OS drive, installed the new one, then dumped our standardized clone image on the drive (using CCC). After the clone was complete, I booted up on the drive, tested it out for a couple of hours and verified that it was working as expected. Next I copied data over to my drive from my backup drive. Everything looked fine.
Three days later, I come in to find my Mac will no longer boot. Grey Apple logo, spinning, etc.. I power off and boot from my external diagnostic drive (OS X 10.5.5). It will not boot. I remove both internal drives and try another boot from the external diagnostic drive. It boots up fine. Shutdown. Remove the backup drive (drive bay 2) and try to reboot from the diag drive once again. It will not boot. Remove the OS drive (drive bay 1) and it boots to the diagnostic drive fine (note: no internal drives are installed at this point). Shutdown. Install the OS drive into drive bay 2 and it then boots to the diagnostic drive just fine.
So now I have booted to my external diag drive and can see that the OS drive is showing on the Desktop; however a pop-up error stating there is a problem has appeared. I try to verify the OS drive using Disk Utility and it stops about 2 seconds into the process with a "Filesystem verify or repair failed" error. The OS drive will then not mount.
I restart booting back to the external diag drive. The OS drive shows up on the Desktop with the same pop-up error message as before.
I run Tech Tool Pro from the diag drive and it comes back with a File Structure error of "Type List Offset Is Invalid" and "No method for Tech Tool Pro to repair a corrupt file". I have a surface scan and drive hardware test running now, but on a 750GB it will be a WHILE.
So here is my predicament... I can understand my original OS drive having problems. It was at least 3 yrs old and has been run quite hard. But what are the odds that I would replace it with a brand new drive running a verified to be good cloned disk image AND have almost the exact same boot issues on the new drive that I had on the old one?
I have taken my original OS drive and hooked it up to external cases and sata-to-usb adapters to make sure that it was actually dead and it is. It will not spin up properly and makes lots of clicking noises. However, having a similar boot issue with a brand new drive has me worried something may be wrong with the Mac Pro hardware also. The new OS drive ran fine for a few days and only had these problems today.
Any guesses?

Here is my own "cookie cutter" template to this type of problem.
Insure your UPS is working properly and that you have 1300VA to start with.
Run Apple Hardware Test of course.
CCC has been updated so make sure latest (it auto checks probably already).
Do you have Windows? run diagnostics from there, much better.
I settled on WD drives and use WD Diagnostic and has saved a drive.
Avoid Barracudas, seems even their 1TB is also suffering early failures (the 1.5TB was suffering from firmware problem).
Check for reviews and drive upgrade DB on AccelerateYourMac.
http://www.xlr8yourmac.com/
I know the F1 got a lot of early praise but they aren't compatible with Apple Pro RAID card and may have other issues.
If you want a fast low-cost drive, WD Cavair 640GB $69.
http://www.barefeats.com/harper14.html
Hitachi E7K1000: http://techreport.com/articles.x/16130/10
http://www.tomshardware.com/reviews/hdd-terabyte-1tb,2077-8.html
I have seen more than a couple of similar stories from people going away for 1-2 weeks and coming home to system that won't work properly. Hopefully people shutdown and unplug, or shutdown and have UPS, but it is strange to say the least.
Resetting SMC is a good idea but best done with 2008 model by leaving it unplugged for a full night 8-12 hrs. and not just 5 minutes. contrary to Apple tech article. For yours, there is a small physical button accessed by pulling drive tray #4 (easier to see if it is on its side and you have flashlight!)
http://support.apple.com/kb/HT1806
http://www.apple.com/support/macpro/

Mac Pro Sleep Issue

Hi, my Mac Pro apparently goes to sleep whenever I leave it for a significant amount of time, i.e. to go to sleep at night. When I come back to it, I hit the spacebar to wake it up. The computer makes noise like it is waking, the screen comes on long enough for me to open an application like Entourage then it immediately shuts back down. In the beginning when this problem happened, I could touch the space bar and it would just come on, now after so many times of that happening, the problem has graduated.
Now nothing works to wake it back up. I know that it hasn't shut down because the light is on on the computer. However, the keyboard doesn't work at this time, the mouse has no effect, nothing will bring my display back up. I even touch the power button on the monitor and the monitor appears to be working properly, but it cannot show me my display screen. The only things that fixes the problem is if I hold the computers power button until it powers off then power it on again.
The fact that it wasn't doing this when I first got it tells me there is something seriously wrong with it. Does anyone out there know why this is happening? I'm afraid that eventually one day I will hold the power button and power it off and it won't come back on.
BTW, I searched the discussion forums and didn't find the exact problem discussed.

Hey Will. It's interesting you are having the same issue. May I ask what generation your mac pro is? Mine is a 2006.
As I said in another thread, I have been in a game of troubleshooting phone tag with an apple specialist for about a week and a half now with almost nothing to show for it. Today he suggested I try plugging my computer in without going through a surge protector. Although the protector I have is brand new, I tried anyway and the machine still shutdown on a wake attempt when plugged directly into a different outlet.
Like you, I am getting VERY fed up with this issue. Although it's intermittent, it's serious enough to cause significant problems and it's not something I am willing to live with.
My instincts say the problem is with the power supply or possibly the SMC on the logic board. However, until apple is willing to fix the machine, I seem to be stuck trying to prove to them there is actually an issue. All in all it's shutdown on wake at least 20 times now, which should be more than enough to warrant a service visit in my opinion.
The truly discouraging thing is I submitted the console logs (the platform failure ones) to the tech specialist and he forwarded them to the apple engineers. I had high hopes the seemingly important logs might shed some light on the cause and therefore allow a fix to occur. Instead, when I spoke with him today, he said the messages didn't indicate a cause of the issue. (Again, this is according to the engineer who looked at the logs.)
So, as it stands, I am being told to try all sots of stuff to narrow down the root of the issue. I even tried a re installation of snow leopard to no avail.
I'll post again if anything new comes up.

Mac Pro bootup issues: started with graphical artifacts, and now nothing.

My computer specs:
- Purchased August 2008
- 2x 2.8GHz Quad-Core Xeon
- 2 Apple 1GB RAM sticks
- 2 Kingston 4GB RAM sticks
- NVIDIA GeForce 8800GT 512MB
-== The Saga of Trouble, Episode 1: Into the Very Heart of Trouble ==-
Started World of WarCraft. Trying to get rare Green Proto-Drake mount. Suddenly, approx. 3 minutes after starting the game, the display goes haywire: artifacts, flickering, you name it.
Tried:
- Power-cycling display: image returned, still messed up.
- Command-Q: nothing, no response.
- Yelling at computer: nothing, no response.
- Holding in power button to shut down: system shut down.
- Rebooting: no REFit bootup (I have REFit installed), and the gray Apple logo has graphical artifacts. Eventually I'm brought to a screen that looks like something out of an NES where the cartridge hasn't been cleaned.
- Rebooting with a different monitor: same result.
-== The Saga of Trouble, Chapter 2: Love is the Key, But Only When Contextually Relevant ==-
Cursing several times, and promising the Mac Pro swift physical retribution should it refuse to work, as, in my hubris, I haven't made a Time Machine backup in a while, I unhooked all cables from the tower, set it on an appropriate work surface, and opened it.
Tried:
- Dusting the interior with compressed air: dusted without incident.
- Checking to ensure graphics card was well-seated: it was.
- Checking to ensure RAM sticks were well-seated: they were.
- Complimenting self on proper usage of past tense: false sense of satisfaction given my Mac Pro's trouble.
-== The Saga of Trouble, Third Strike: Startup on Low Forward Reduced by Two Frames ==-
Reconnected everything and attempted to boot. A fan that normally whirs on startup (I assume from the graphics card, but I didn't visually confirm in the past) is not whirring. The characteristic "Apple noise" is heard, but nothing on screen.
Tried:
- The other DVI port on the graphics card: no dice.
- Another monitor: nothing.
- Another monitor on the other DVI port on the graphics card: no luck.
-== The Saga of Trouble, Future Shock: Escaping the Saga of Trouble ==-
With two upcoming trips, all part of chasing my dreams to become an awesomely famous screenwriter and game designer, instead of just an aspiring wannabe, I cannot afford to do what I think will solve the problem, and that's purchasing a new graphics card.
Given my foolishness in not making regular Time Machine backups, reinstalling the OS is going to be a last resort. As in I'm not trying that until I've exhausted all other options (which, as taught in college and in the four years of my life I wasted as an IT guy for an ISP, is not what you should try first anyway). I'll exorcise the HDD and plug it into something else before I reinstall the OS.
Given the above two points: what's my next step? Is there something I can try before either purchasing a new graphics card or reinstalling the OS?
Many thanks in advance for any advice.

Apple firmware (or flashed card).
The ATI line of Apple cards use universal EFI (EBC) so even the new 5770/5870s work as well.
Check the test results coming out on
http://www.barefeats.com comparing cards.
I realize the hard restart may be 'necessary' but booting from DVD or running the single user mode command FSCK -fy can minimize directory repair problem if you don't have OS X on another drive.
Installing OS X is fast and easy if you can shrink 30GB off another drive that you would then be able to boot from and has just mini OS and utilities.
Cache files often are the first to become corrupt as well, or prefs, anything that was in memory and that are changed frequently and after a startup. Cache files are automatically rebuilt and no fear if you can delete those.
AppleJack and Snow Leopard Cache Cleaner can 'enhance' what diskutil fsck you can do and add some more commands.
8800GTs are harder to find, still on ebay at times.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=300448795337

Mac Pro screen issue

Hi all,
my mac pro shows the apple logo at start up and the users available.
Then, either the screen goes crazy with lots of moving thin grey lines or I get to
login in under my account and then the finder has lots of artifacting on the screen
- black blocks in the finder window or parts of top bar displays overlapping text. I've
had some odd black triangle across some of the finder windows too.
If I log in to the guest user (safari only mode) the screen is fine.
Is this a graphics card issue or something else?
p.s. I have tried installing 10.8 but alas, my mac is just one model out from being suported.
Cheers,
Steve
Mac pro
2x 2.66 GHx Dual-Core Interl Xeon
10.7.4

The 7300 as I said could be on its last legs also.
10.6.3 DVD is your best bet probably.
And it isn't that hard to setup and install and be back up and running.
But I would invest in a ATI 5770 regardless, you have 6 yr old system
ATI Radeon 5770 or Nvidia 8800GT
http://store.apple.com/us/product/MC742ZM/A
http://www.amazon.com/Apple-ATI-Radeon-5770-MC742ZM/dp/B003Z6QH6M
http://www.bhphotovideo.com/c/product/726537-REG/Apple_MC742ZM_A_ATI_Radeon_HD_5 770.html
How To Install and Remove Memory Mac Pro
https://support.apple.com/kb/HT4433
WD Black Caviar
http://www.amazon.com/Western-Digital-Caviar-Internal-Desktop/dp/B0036Q7MV0/
2x2GB FBDIMM DDR2 667MHz @ $54
http://www.amazon.com/BUFFERED-PC2-5300-FB-DIMM-APPLE-Memory/dp/B002ORUUAC/
Hardware Monitor
http://www.bresink.com/osx/HardwareMonitor.html
UPS
http://www.amazon.com/CyberPower-CP1500PFCLCD-Compatible-1500VA-Tower/dp/B00429N 19W/
Metro Vacuum ED500 DataVac 500-Watt 0.75-HP Electric Duster 120-Volt
www.amazon.com/Metro-Vacuum-ED500-500-Watt-Electric/dp/B001J4ZOAW/

Early 2008 Mac Pro boot issue

I'm having what seems to be a hardware issue with my Mac Pro on booting. The MP boots to either a blue screen or a chunked grey screen (http://gallery.me.com/dwphoto#100036/IMG_1401) and hang. So far, I've tried booting from multiple clones (from 10.5-10.6.6) as well as the Snow Leopard install DVD, reinstalling SL, removed all 3rd party cards and usb/firewire externals, zapped the PRAM, repaired permissions, verified disks. It will boot into Safe Mode without problem. If it hangs on normal boot, all the drives are visible and active over a network. I'm pretty stumped.

They were reluctant? I hope you printed out the Apple article. Unbelievable.
What I would like would be a link at the top of this forum and more direct access (and we all want better organized and search results to KB articles).
There ought to be "newest changes KB" and a Warranty category
http://www.apple.com/support/macpro

New Mac Pro major issue's with Premiere CC 14

I bought the latest Mac Pro with top spec but it runs like a pig with Premiere cc 14, Adobe's video shows the Mac works perfectly. However mine takes forever to render, and has a jerky image on full quality playback with some clips, tried multiple setting, also been on the forum about open cl and open gl and other forums saying it's a mac issue and other saying it's adobe issue
Has anyone got a solution.
Would Adobe like to comment on the issues with the new Mac Pro's

I add to Jason's response with this: If you are having any suspicious behavior with Premiere Pro CC 2014 running OS X 10.9.4, please update your permissions to Read/Write first. Your permissions may be set to Read Only (this happens when you update, rather than clean install OS X). See this link: fixing permissions problem that impedes start of Adobe applications | After Effects region of interest
This forum post details the process: Re: Premier Pro 2014 is very sluggish
Thanks,
Kevin

Mysterious Mac Pro Power Issue

Model Name:          Mac Pro
Model Identifier:          MacPro3,1
Processor Name:          Quad-Core Intel Xeon
Processor Speed:          2.8 GHz
Number Of Processors:          2
Total Number Of Cores:          8
L2 Cache (per processor):          12 MB
Memory:          4 GB
Bus Speed:          1.6 GHz
Boot ROM Version:          MP31.006C.B05
SMC Version (system):          1.25f4
I recently moved my MacPro to a new building. Almost immediately it started taking a long time to boot. Twice it hung on the blue screen for approximately 10 minutes before continuing to the login screen. Problems were intermittent, sometimes it would boot fine. Then it started having trouble powering on at all. It would click and the light would turn on and off in less than 5 seconds. I took it to a different building: no powering on. I took it twice to the Apple store for the same problem, it turned on both times so I had to take it back with no help. Back at the original building, the computer turns on sometimes after leaving it unplugged overnight. I suspected an issue with the power in the building so I plugged it into a UPS. Initially it was only on a Surge Protector. On one recent occasion I accidentally nudged it with my knee and it powered down and back up. On another occasion I was sitting still watching a video and it powered down and back up with no intervention.
This will not reproduce at the Apple store. Each time it is there it has booted up perfectly using both my power cord and Apple’s power cord. Don’t know what to do next.
Any thoughts on what to try before replacing power supply and power cable? Is it possible this is not a power-related issue?

make sure to use something in 1000VA or better for your UPS and that it can support your system. May seem like $200 is a lot but then they work and give you adequate shutdown or to ride out a 5 minute power issue.
UPS
http://www.amazon.com/CyberPower-CP1500PFCLCD-Compatible-1500VA-Tower/dp/B00429N 19W/
you don't need to nor is it that effective to leave unplugged over night or something.
hit the power on for 10 seconds while every cord and device is unplugged though.
Resetting the System Management Controller (SMC)
https://support.apple.com/kb/HT3964

Mac Pro having issues with widgets after booting in 64-bit mode

I tried the temp 64-bit boot (holding down 6 and 4 on startup), Mac Pro boots fine. I've noticed a difference in how my system runs n 64-bit. Much peppier. But the one thing I've noticed is that widgets are coming up strange. More specifically, The Weather Network, Conversion, and Translate widgets. The letters and numbers are coming up as outlined boxes. The drop down menus still work, the names just don't come up. ie. In the Conversion widget, the drop down menu name is boxes, but when you click on it, you can see the names of the selections. But as soon as you choose one, the letters turn to boxes.
I've restarted my computer to boot back in 32-bit, and don't see the same issues. Is anyone aware of this, what's causing it, and if there is a fix? Thanks.

HI Eric,
Some widgets and browser plugins as well such as Flash aren't supported in 64-bit. Some widgets were originally written for PowerPC platforms.
Flash Player support on 64-bit operating systems
Carolyn
Message was edited by: Carolyn Samit

New mac pro playback issues & sluggish

got my new mac pro this week. wanted a fesh start, so didn't migrate anything. started by installing my must-have apps: adobe cc, ableton, apogee, fontexplorer, natove instrument komplete. everything worked great. then suddenly, when vreating a simple project in premiere, playback didn't work. and neither in quicktime nor itunes. started seeing the beachball in many apps, everything totally sluggish. started deleting apps, but nothing seemed to help. anybody had similar issues?

My own remedy is more of the ounce of prevention:
Clone the system so you have the nice vanilla system as it was backed up to another drive volume or sparse image.
One person runs multiple copies of Mavericks in VMs using VMware Fusion to allow testing any changes first; restore a VM back to before changes, or to switch a VM to a boot image.
Create a bootable clone of the system, before making changes, in case a system does go south, or just for testing.
Sluggish is so common but generic, and how many apps run concurrently or have been tested to work even with 10.9.1 builds along with change to new hardware?
The things we may not see or be aware of, might be like this one uncovered and mentioned on Ars:
In our recent review of the late 2013 Mac Pro, one of our sticking points was the OpenGL performance that trailed Windows on the same hardware. A particularly damning case was the high-polygon-scene performance in Autodesk Maya showing how OpenGL viewport 2 performance fell off a cliff when you pushed into very high polygon counts of over 20 million with the D700 in OS X.
While this issue still needs to be resolved for some programs like modo, some quick sleuthing by Apple and AMD shows that the problem was on the Autodesk side. Maya was not simply querying the GPU RAM; for some reason, it was using a hard ceiling on OS X, so the brutal performance hit was the result of that ceiling. Once you explicitly tell Maya to use your available VRAM with the environment variable MAYA_OGS_GPU_MEMORY_LIMIT=6000 in ~/Library/Preferences/Autodesk/maya/2014-x64/Maya.env, performance is perceptibly the same as in Windows in Boot Camp with very large scenes:
If you have a GPU with more than 1GB of VRAM, I highly recommend setting this environment variable to your GPU's VRAM amount. This issue will reportedly be fixed in Maya 2015, but Maya is clearly an absolutely massive program with some annoying issues—here is my blog post on how to fix Maya performance when the Help Line is visible in OS X.
So, fellow Maya users, I just need to implicate Apple in another 17,000-word article about our other bugs, and we'll have them fixed in no time! This brings us to the question of why I thought to blame this on drivers and not the Mac Maya version to begin with. It's odd that this Mac-only hard-coded VRAM amount existed at all because Maya is very much the same beast on all platforms, and from my knowledge of it as a beta tester, platforms don't get specific attention for tuning, and that's the case for the dominant platform as well. That's why I assumed that this was a driver bug and not Maya-specific.
Anyway, we'd like to thank AMD and Apple for their quick work with Autodesk to resolve this issue. We'll be updating the review today to account for this new information.
http://arstechnica.com/apple/2014/02/2013-mac-pro-firepro-d700-opengl-is-better- than-we-thought-it-was/
I don't always follow my own advice, sometimes it works out, sometimes not, but any OS like Apple's needs a couple updates, and any new hardware needs some firmware revision, chips, changes in production, and time to ah "field test" new system in the real world.

Mac Pro Display Issue HELP!

Hello Everyone,
Lately i just bought a new mac pro. recently i have been doing some video projects in final cut pro 7 (i know its outdated lol) in the video preview it seems that the video has some distortion to it, meaning the the video has a skewed effect to it of some sort. I upgraded from a 2009 iMac which i have never noticed this issue before! I don't think that it would be a hardware issue.. heres my specs:
3.33GHz 6-core
12 gigs of ram
ATI radeon 5770 1gb ram
Monitor: Samsung SyncMaster SA300
I think that it may be the monitor.. as i soon plan on upgrading to a cinema display.
If anyone has and idea what may be causing this unusual issue that would be greatly appreciated!
Thanks in advance!

I cleaned out my mac with compressed air, it was dusty, but the display flickering happened again.
So I followed your advice and installed:
Temperature Monitor
http://www.bresink.de/osx/TemperatureMonitor.html
Which showed that my memory module 1B and 2B were 70 - 75'C(160 -167'F). There was no reading for the graphic card so I couldn't tell if that was over heating.
Then I installed:
smc fan controller
http://www.macupdate.com/app/mac/23049/smcfancontrol
and increased the memory_cpu fan speed which lowered the temperature of the ram to 60'C (143'F).
I even changed this ram's placement and put it in different slots.This ram was the same temperature in the new placements.
Also this is the kingston 2gb ram without heatsinks. Ive used it for 1.5 yrs, and this is the first time its giving me these problems.
Do you know how I can check if the graphic card is over heating? or is the problem just with the ram?
Thank you for all your help!

Mac Pro Display Issues

I am trying to use three monitors with a Mac Pro with a default Radeon 5770 graphics card, but I am coming across many issues. First, I had to find out that you needed two dual-link DVI adapters if you want to add three monitors. After purchasing one adapter from StarTech for a 30" Dell monitor however, the display is having many issues.
When I first turn the computer on, the display shows "snow". I have to turn the display on and off, but sometimes even this does not get rid of it. Also, the screen will not wake up when the computer wakes up from sleep, although the other DVI monitor attached works perfectly. Finally, the screen will often go into periods of complete black. I can still move the mouse on the other screen, but it jumps around and skips when I move it.
If I want to resolve this issue, should I:
1) Go with Apple's dual-link adapter instead of the StarTech one I am currently using
2) Upgrade the Mac Pro graphics to either the dual 5770 or the single 5870
3) Replace the large dell monitor with an Apple Cinema Display
Or, would none of these solutions even help if this is an unsolvable problem.
Any advice would be greatly appreciated.
Thanks!

That is not quite right. Strictly speaking, it is not three dual-Link adapters that are required, but all adapters must be ACTIVE, POWERED Adapters.
Apple's solution requires their Daul-Link adapters because those are the ones with a USB lead to pick up even more power.
Your initail query tlaks of wanting to connect three monitors, but you have only provided connection details for two.

Mac Pro restart issue.

When restarting my Mac pro it will not turn back on and a repetitive ticking can be heard from inside the tower.
Any ideas what the issue is?
Other info can be provided.
Thanks

Initially I thought it could be this, however I have two Hard Drives in the tower, so I erased both and installed osx on the other.
The problem still occured. Can't believe that it would be both HD's but I could be possible.
Any other possibilities?

Mac Pro USB issue

I have a weird situation. I have a Mac Pro 8 core 3.0Ghz with 13GB RAM, 4 SATA internal drives, 2 USB external 500 Western Digital Drives. I use bay one of the sata for OSX Tiger and Bay 2 for OSX Leopard (both purchased versions). The problem is when I'm in Tiger the USB drives have a through put of about 3MB and when booted in Leopard they have a through put of about 24MB. I can only guess that it's a driver problem, but I haven't been able to find anything about the fix. I did find that the WD USB Drives have a problem with speed. These WD drives are USB and SATA. When using them as SATA drives they work fine on both versions of OSX. The problem is I need the SATA connections for other drives and just want to use the WD drives as backup. Has anyone got any ideas why the drives perform normally under Leopard and not under Tiger?

Hi southwos,
That certainly is a strange one...
I have heard of several USB issues pertaining to tiger updates, noteably, 10.4.11. It would seem some USB drivers were updated to fix several bugs, but inadvertantly, caused others. The solution it seems, is to rollback to 10.4.9.
The symptoms of this 'unexpected feature' (sic) are that some USB devices seem to operate at USB1.1 speeds.
This only affects a small number of devices, and its the chipsets in said devices that have the conflict.
Certainly hope i have been of help
Cheers
Bryza

Mac Pro Noise Issue !

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