PowerMac G5 2.3Ghz will not boot, fan gets laud

Power Mac G5 will not boot. when i push the power button i have the normal chime and the screen comes up with mac os x starting and it freezes or goes to black and then the fan noise becomes Lauder and Lauder. at this point i don't have keyboard or mouse control. any idea? i already reset the PRAM and SMU and not helping at all.

Hi! Run the hardware test that came with your computer to see if it boots. You could have a dead hard drive. You might also try booting from the OSX install disc with the hard drive unhooked. This would give you an idea if the hardware is ok. Tom

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PowerMac G4 Dual Optical - Model Number 8570 EMC No 1914 : 1.25GHz DP/256M DDR@ 333/80G/Combo/MDM Operating system OS X 1st or 2nd release
This machine was used daily until February 2007. From then till the last week of September 2009 the machine was in storage and was not powered up
When tried for the first time in over 2 years, the machine powered up and the main switch on the front of the computer came on but no audible chime was heard. The machine will not boot & no display (apart from grey screen visible).
The 3.6 v lithium battery was replaced. PRAM & NVRAM has been reset via the keyboard commands : CommandOption+PR keys. After this, the chimes would work on power up but nothing is visible on screen. Also although the keyboard is functional evidenced by the success of the PRAM reset commands, the num & caps lock lights will not work nor will the CD drive "arrow" eject button. I have also removed the battery, reset the PMU on the logic board, and left the machine for over 30 minutes before powering up again:
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After installing IOS8.02 my ipad air will not boot up. get white screen and apple logo and then a blue screen. over and over again.

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Your computers start up has been corrupted. No big deal. Turn on your computer hold down on F-8 key as you turn it on. This should put you in safe mode. If f-8 key fails then just disconnect the power cord at the power adapter and plug it back in and turn on your computer (This is called a fource start up) automatically puts your computer into safe mode. Use your arrow kek select safe mode with net work. Top one I belive. In safe mode close out Help and Support window displayed. Open up Recovery Manger and select Microsoft System Restore. Click next then click next again now a list of dates will appair choose a date before this event occured. Click next and let your computer complete the sytem restore. My guess Microsft up dates caused this issue. After this is finished now go back and change all your update setting to down load up dates but let me choose witch ones to install. Only install three at a time. To a void future occurances and black screen or blue screen issues. Follow these steps for blue screen or black screen. Please click on Kudos if this has resolved your issue. Thank you frrw.

PM G5 will not boot, Fan's run on full

I have a relatively new PowerMac G5, DP 2.0GHz (early 2005), and for the most part it has been excellent... a few days ago, i walked into my room to hear my computer running with all it's fans on full. since it would not respond to either keyboard or mouse to wake it, i powered it down (held power button) and restarted it.
When i restarted, my computer will get as far as the start-up chime, then the indicator LED will flash between bright and dull 3 times over the period of about 1.5 seconds, then stay solid for about 4 seconds, before flashing again. What is more, after about 30 seconds of this, the fans once again kick up to full speed, and will not slow down.
I can find no obvious reference to this anywhere in the manuals i have with me, nor on this site. I have checked the obvious (made sure everything internally and externally is securely in place) as well as removing and re-inserting the RAM etc. I can not get it to boot from a CD to run a hardware test.
has anyone else experianced anything like this? does anyone know what would be causing this, and if it is easily fixable? will i need to take it in to be looked at?

Luke
In the troubleshhoting section of the PowerMac manual they refer to the diagnostic status of the power LED, and descibe the various conditions. Also, If you run the system with the side door taken off but leave the plastic air deflector in place, you can view the status of the logic board's diagnostic LED's. Their status is also explained in the user's guide.
Power Mac G5 (Early 2005) User's Guide (Manual)
http://manuals.info.apple.com/en/PowerMacG5_(Early2005)UserGuide.pdf
[file is 10.5Mb]
With in the given problem that relates to your situation you can then call Applecare or try whatever steps are suggested in the user's guide.
Hope this helps
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I searched the forum and read several posts concerning MDDs not being able to boot.....so I have performed some of the recommended troubleshooting steps - no avail. So here is my situation and the facts:
This is what happens when you power up the unit:
1. Both fans power up.
2. Red light on the motherboard lights
3. DVD (brand new) does an initial spin with the light coming on for about 8-10 seconds
4. Then fans go into overdrive with a loud, continuous roar
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1. Reset the PMU several times and different recommended techniques
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3. Swapped bootable drives...checked jumpers...still no power going to drives
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I will test the PSU based on the recommendations from other posts - but was curious, based on the above facts, can it be safely determined that the PSU is bad (no CAPS LOCK light and no power to hard drives).
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I agree with Japamac, it's odd that the HDs aren't spinning up. I bet they are but you can't hear them over the fans. The best it to use tester on them. Another thought it to unplug the fans, and startup the MDD with the case open -- be sure you ground yourself. You'll probably hear the HD 'click' when they startup; otherwise, if you touch the top (non-circuit board side) you can usually hear them vibrate.
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I will not say with authority that it's not the PSU, but it may not. I've experienced what you described twice -- all issues with CPU board.
1. I bought for about $10 a condition-unknown 1.42 GHz dual card (low risk, high reward). At startup I get the bong, mb lights, no video signal, and the roar of the fans. The card gives roaring fans on both my 133MHz and 167MHz boards, which I know both work.
2. When I tried to undo an unsuccessul 133MHz to 167MHz motherboard FSB overclock. I didn't stir my conductive paint well, and I suspect the CPUs were clocked differently or overclocked way too high. I got the roaring fans at startup in this unstable situation with my bad paint job on the bus-multipliers (on the CPU board) and motherboard.
Without tinkering with the motherboard. I then put my other known working 1.25GHz dual CPU board, and I started up without issue. So something seemed out of what with the work on the bus-multipliers. I confirmed that when removed all the paint, put the other CPU board back in (the one that caused roaring fans with my bad painting) and I started without issue.
I've since gotten better with conductive paint, and the motherboard is back to 133Mhz and that old CPU is clocked properly (and since replaced).

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My system will not boot but gets stuck at "09 Power on South Bridge Initialization"
Detailed description:
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even compared to just 10 years ago sales staff have became really dumb as there just hiring people who do not care about anything as long as they get there cut of a sale (usually all they know is basic Consumer parts they stock) and nearly non of them unless they specialize in that level of equipment will have 0 idea what they work with on a pro level part (ECC memory tends to be used on servers and Professional workstations so if they do not use that type of gear then they probably have no idea what ECC really is at all)!
also in that time some major things have happened especially with computer parts like the memory controller moved from the Chipset to the CPU same with the SATA controller , onboard GPU (thats now on the CPU and some have it some don't) and alot of other things and I guess that the people you dealed with had no idea the memory support has very little to do with the board (all the board can do is have BIOS Timing sets now and lists of parts it supports) and is now to do with the CPU alot more as it has the important stuff on it (there very close to a SOC (System On Chip) now)!
if you plan on building another computer remember to do some research yourself before you get a CPU as it is nearly the most important thing of all and they have different features tied to them and do not expect sales guys to have a idea unless there also a Technical support staff member too and work on computers that are of the same class your trying to make and have at least used the same level gear (usually if your doing something like that find a friend who is a computer nerd tell him what your trying to do and get him to help you choose all the parts)!
let me know how it goes when you get the Xeon and have it installed?

210-4125 will not boot when windows 7 x64 is installed

i have posted this problem a while ago "210-4125 will not boot when windows 7 x64 is installed"
hoping that some one new might have had the same problem
HP.......................................HP MINI PC 210-4125
model ................................210-4125
Bios ...................................F08
ser no................................ [edited Serial Number by Moderator]
product no.........................A8V56EA#ABU
Ram ..................................4.0 GB
system board ID............... 338d
processor .........................Atom(TM) CPU N2800 1.86GHz
Product configuration ID..0797200000204600000300100
acording to INTEL the cpu is X64 bit, but the bios will not let a X64 boot up only a x32 bit ?
and i get a message on black screen "you are trying to load an opperating system not compatable" or some thing like that
it would seem that the bios is the problem and not the CPU ? the 08 bios update only covers x32 bit and not x64
if any one out there is running x64 bit windows 7 on the 210-400 range of netbook can you tel me
1. model no
2.CPU
3.Ram installed
4 bios No
thank you
JB

thank you George
i will bear that in mind next time
i see that you work for HP ? do you have any suggestion's for my problem ?
as i mentioned before the notebook works faultlessly when X64 windows 7 is installed via the OEM disk in the external DVD drive , but if i disconnect the DVD drive it will not boot, but gets stuck in boot loop , then if i connect the drive with any windows installation disc loaded in it , it loads perfect and works perfect even if i disconnect when loaded , but i can not keep the drive connected ?
i have tried to use a USB flash drive to install X64 windows 7 but it comes back that the present CPU is not compatible ??
when it clearly states on Intel web site that it is and it works perfect when loaded ?? even the Windows update manager confirms that it will run all X64 windows OS
i understand the the bios "InsydeH20" is a very difficult bios to work with, and that Insyde have blocked the "hidden menu" via software ? i have exhausted all the software functions to open the complete bios that i can find at the moment , i think it is locked out from out side the bios and not from inside.?
any pointers in the right direction would be very helpful ,
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Advice for troubleshooting an emac that will not boot

My mom's emac will not boot, and gets stuck with a gray screen and apple logo along with the circling timer. We have tried the following:
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turning off and unplugging computer.
removed all peripherals
reboot in safe mode
reboot from installation disc
nothing works. The computer gets stuck in the boot process. We have run the hardware repair disc, there are no problems with the hardware.
I would like to make as many attempts to troubleshoot problem at home before spending a lot of money by taking it to a repair shop. I would also like some information before I go in order to be prepared to discuss the problem. I do not want to get 'taken' for repairs that may be unnecessary.
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It sounds as if you've already figured the standard trobleshooting / startup methods. There is one additional thing that can block an eMac from starting: if the PRAM battery is failing, that can prevent the Mac from starting up. My understanding is that a failed battery would block the eMac from starting up to the Apple Hardware Test (AHT) Disk also, through. Perhaps the battery is low enough to prevent a normal start but still has enough in it to let AHT come up? If you have an electronics multimeter, you can test the battery while it's under load (i.e., still in the eMac's PRAM battery holder) and see if it's within 0.1v of the nominal 3.6v specification. If the battery is low, replacing it is straightforward (see eMac - Do-It-Yourself). The 1/2 AA 3.6v lithium battery is available online and is usually in stock at places like Radio Shack, where it costs about US$11 or so (the battery is cheaper online, but after adding shipping and handling, the brick-and-motar store is about the same, plus quicker).

PowerMac G5 2.3Ghz will not boot, fan gets laud

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