Power Mac :: Mac Pro No Boot Sound, Black Screen And Loud Fans
May 25, 2012
I've had problems with my Mac for a while now. First of all, it indicated ram problems with 2 beeps. I later fixed this by moving and changing around modules. It was solved, but now a new problem. The Mac seems to turn on, making its iconic sound for startup, but the screen remains black. After about a half to one minute, the fans go crazy and I have to shut it off. I've tried a few things like holding shift or alt, but that doesn't work as it doesn't even display a white screen.
I need to know what to do and I don't really have the time to buy new parts right now. I'm really a windows based pc fixer by the way so I'm new to fixing macs.
I have a Power Mac G5 that turns on but there is no chime- a black screen and after 3-4 minutes the fans start running flat out and get loud. I have tried unplugging everything- plugging it all back up, starting and holding down command option P & R but nothing is helping. It has no apple care so they will not help troubleshoot it.I turned it on tonight and it powered up fine- Then as i was checking mail the screen went black.
I have a DP 2.7 G5 Tower and lately I come into my office to find it with dark screens (dual monitor setup), and I am unable to in any way control it by the mouse or keyboard. I imagine it's "hung?" The fans are on full blast and it sounds like it's planning to take off at any moment. I've awakened in the middle of the night by the sound of it and it's in that same state. What to do? I restart it at the power button. I then have to run Disk Utility to verify all the disks and RAID setups.
Anyway, I read about the coolant leaks issues. I started running a temperature monitoring program for the past few months, and its been doing about the same type of pattern since I started monitoring it. Doesn't appear to be unusual. Everything appears to be working fairly well, except for this issue. System is OS X.4.11, and checks out fine with Disk Utility. So far the hard reboots haven't done any damage to my disks, but it worries me greatly. Also the "liquid cooled" aspect worries me greatly.
Information: Multiple Macs iMac G5 & PowerMac G5 Mac OS X (10.4.10) Liquid Cooled
I was out of town so this description was second hand but the computer has been running a little weird for a while. When I have too many apps open or on a website that has a lot going on...the computer starts revving up until I quit out of everything and let it slow down. I guess while I was gone, this happened but nobody quit out the apps and it eventually turned the screen black. When I tried restarting it sounds like the computer is working but the screen is black so I can't see if it is booting up or not. I took the monitor into the apple store yesterday and it started up right away for them. It's a cinema 23" I think.
So my girlfriend boss wanted me to fix her computer. So I brought it home turned it on, and it didnt chime but it booted to the gray screen with apple logo/ slashed circle/and folder with a "?" So I made a USB Mac OS x bootable drive (FLASH) held down alt (try using a windows keyboard its fun) was able to select option and install a fresh copy. all seemed well was running really hot so I poped of the screen. HOLY MOLY! this thing is CAKED with dust, and I am not kidding it has literally piles of dust. So I ran updates, and did firmware updates. Turned it off for the night.
The next morning I went to radio shack and got Dust remove spray, opened it up made sure I was carful taking off the screen, and blew the sucker out. now its NICE and CLEAN. then i made sure I plugged everything in and turned it on. Drive spun like normal, Optical checked for a CD, and fans are also running normally. but no chime, no nothing stays as silent as normal but doesnt budge, it is like it hangs.
My G4 recently will not boot. I get the chime, it starts to boot, but almost never completes before I get the "you must restart you Mac" screen.I have the correct hardware test disc. I started using that two days ago. It still has not completed testing the logic board and the system is unresponsive. I guess that means the board is fried?
Info: PowerMac, Mac OS X (10.4.11), G4 Quicksilver, 1Ghz dual processor
When I power up my iMac, I encountered a very loud fan sound in the background that I had never encountered before.This happens despite turning off and powering up again.
My back up 1.6 ghz G5 power mac is misbehaving. I moved the system to another room and when I went to boot up, the only response I got was the fans running at normal speed - and then they started to slowly creep up to a very high speed. No hard drive activity, no monitor activity. I swapped out the memory for the original factory mem - same problem - reset the switch... nothing.
Information: Power Mac G5 1.6 GHZ Mac OS X (10.4.3) 1 Gig Mem, 80 Gig HD
I have a late 2011 MacbBook Pro with Lion. Sometimes my Mac gets vertical flickering bands almong with a really loud alam/emergency sound. Since I am in an office with svereral people, I have to swith it off by using the power button. I upgraded my RAM to 8GB (did it my self)... but there dosen't seem to be a problem with it since it says OK in the System report. Can someone please tell me what the problem might be?
Very occasionally the screen on my iMac (early 08 24") goes blank and it makes an incredibly loud static sound that's independent of the volume control setting. The power then needs disconnecting to restart the machine. Haven't been able to tie it to any specific program. Apple Care asked I leave it on logged in on a new user account (at the time I originally thought it only happened in sleep mode, but have since discovered this is not the case).
It's happened maybe 3 or 4 times in the same number of months. I've only found one similar case on the net, with someone suggesting it was Safari 4 beta, which I've found not to be the case with mine. It's on extended warranty. I think there's something seriously wrong with it (it's already had the hard drive and power supply replaced).
I just bought my MacBook Pro last week. When I power it up, it makes a loud noise for about a second and a half. I think it's the hard drive starting up or the disc drive. I'm not sure which one, but it's pretty loud, so I was just wondering if anyone else noticed this and if it is normal.
I have a MacPro 2.66 quad-core intel. 4gb ram. I have a hard-drive from my old Powermac that i upgraded to 10.5.5 for this computer. Everytime I put my computer to sleep, and then wake it back up. The fans spin up to maximum speed and all the fans are running really loud and then after about a minute all spin to normal speed.
Anyone else experiencing this? My fans have been going pretty much nonstop audibly since the 10.6 install. The "normal" for the fans is about 2000rpm, and now they RARELY dip under 3000, and the "new norm" is a very audible 4000-5000rmps.
I just received my new Mac Pro from apple on Saturday. This thing is a beast! I am planning on running apps from Final Cut Studio 3, Photoshop, After Effects, and others. 2.66 Quad/6GB RAM (OWC)/640GB HD/ATI 4870
I have a few questions. 1.) Is it normal for the Mac Pro's fans to make a lot of noise when you first start it up or wake it from sleep? My fans make a lot of noise for about 16 seconds or so. 2.) I am planning to put a second optical drive in it. Is there a way to eject only one tray at a time, or will it do both?
Now, I am selling my iMac for around $800 and I am looking at some upgrades: An additional 21.5" Acer LCD display A mini display port to dvi adapter A LG blu ray burner Two 1TB samsung internal HDs A blu ray player (I do not have one yet) Elgato Eye TV hybrid
I have an early 2010 MBP (13 inch) whose RAM I upgraded to 8GB and the hard drive I upgraded to 750GB.Ever since I installed OSX Lion it takes ages to boot up (far slower than Snow Leopard which booted up almost instantly from turn on).Furthermore, when running, it gets very hot when running Windows virtualisation software inside OSX (VMWare Fusion 4/Parallels Desktop 6/7 - same results) and the fans turn on and become noticeabley loud.The machine is still under Applecare Warranty, is there anything I can do myself to resolve this, especially the heat/noisy fans?Is it due to having to work harder to virtualise Windows inside OSX and so run both systems concurrently, thus requiring more resources?
So I got my macbook pro yesterday and I've been doing some basic stuff on it. While I was installing World of Warcraft, the computer jumped up about 101 degrees celcius. I know I shouldn't trust istat pro 100% but still, my fans are running super loud and the computer is very hot to touch. I'm not running any heavy programs or doing any gaming. I had Aol Instant Messenger on, and WoW instaling in the background. I'd like to also add that when opening various programs I get the spinning beachball very often.
Well, I am considering buying the new MacBook or the MacBook Pro. I currently have a whitebook and I would like to ask the alu MacBook users the following question. Is the alu MacBook fans going really laud when you visit web sites with flash videos or when you watch youtube videos. I am asking that because my whitebook is getting laud as hell then I perform the above actions and if the alubook is doing the same I am considering buying the Pro, which is match more quite.
I notice that while streaming a movie, watching a dvd or playing a game my hard drive fan is so loud, its annoying. I have a 2008 White Macbook and i replaced the stock hard drive with a western digital 5400rpm 320gb and I only have 1gig of ram. I have no problem replacing the hard drive for a 7200 but i just need to know if its worth it. If i were to upgrade the ram to 2gigs would that solve the problem? Is it possible to install a 500gig drive into the white macbooks?
Today my Macbook has suddenly begun to act slow and the fans are running quite loud. I read online that I should try checking the activity moniter, and I did this, and a program is currently taking a large portion of my CPU. However, I am unable to quit it and I'm sure it is the problem. In one of the description fields it is lableled "root" and says "kernel_task".
I'm doing my best not to panic here but I'm sure you can feel my pain. I got up this morning, made my coffee and opened up my MBP to start my day.
I can hear that start up sound but the screen is completely black. Nothing. It was fine yesterday and I didn't do anything different when I closed it to put it in sleep mode. But now it won't wake up. I pulled the battery, let it cool (seemed a little warm since I just started it)....still black screen.
I have this powerbook from 2005 and no problems up to now..ohhh no!
A couple of days ago started to occasionally make a clank clank noise and getting stacked on the spinning colour circle, only manual restart would do it.
Thought it might be the hard disk as it is a bit old and i never replaced anything on it, shacked it and a noise of something loose would happen, so i thought of opening it up and see if i could reattach anything loose....anyway i started unscrewing following instructions, couldn't get memory out...every screw seems different and so i gave up, put it all back together, praying that the screws are all in their right places and hey, now it wont even start, not a loose sound when shaken though, but not a bip not a light, black screen, nothing...only sign of life is the green light under the num block key and the capitals arrow also starts light
I have a Macbook 2009 that wont turn on. When you press the power key you hear the normal boot chime but no picture appears.
The laptop was given to me without any hard drive, so I installed a blank 250GB HDD. The HDD has no OS on it, and I am not sure how it is currently formatted as it is new.
Even when I use an external screen and regardless of whether a HDD is present the macbook does not show any sign of life on the screen or external screen but still chimes.
I know it would be a good idea to boot with restore discs etc, but even if no OS is present surely the screen should still come on and display the gray and apple logo? I did all the resets and holding button configurations on startup, such as reset PRAM.
When I start my computer up in the morning everything else starts normally. First the light comes on on the front of the computer and on the bottom of the monitor, then the start up tone rings and the computer is fully running. But my monitor is black and I do not get the apple picture or nothing on the screen. I thought my monitor was going out, but we have another work station the same and I switched the monitors (same 27" cinema screen as mine). I can actually use the other computer and network into my computer and fully use everything on my computer. But my monitor is black (no display)! I have contacted MAC and have reset the PMU button many times and sometimes this works, but most of the time it does not. I just keep restarting the computer and finally it will start up normally with the display and everything.
Information: Dual 2ghz PowerPc g5 Mac OS X (10.4.11) 27" Cinema Screen
After the 10.5.1 software I'm having a problem with distorted (stripes etc.) icons and menu dropdowns. Apparently not on my desktop or programs like Safari, Mail etc., only on icons and menu dropdowns, which I find odd. Sometimes it's gone, but after some time it reappears again. Anyway, sometimes my Mac (iMac G5, PowerMac12,1, 1.9 GHz) is going bonkers completely, which results in a first pink, then black screen. A hard shut down is then the only option. However, I guess it's videocard related (ATI Radeon X600 Pro). I did all the tests, fixes you can think of, but without any results. I contacted Apple support, but because this is an iMac, you can't just replace the card, they told me that the whole motherboard should be replaced, which will cost me approx. 700 EURO. Of course I am not willing to do that, which means that I'll have to buy a new Mac. Of course a new Mac is always a delight, but I find replacement after just 2 years unacceptable.
Information: iMac G5 PowerMac12,1 Mac OS X (10.5.1)
I have been given a 1.6 Dual G5 running 10.3. I tried to upgrade to 10.4, the first disc installed but crashed several times on disc 2. I had run DU previously to check there were no problem. Each restart took me back to disc 2 which failed to install. I then tried to install 10.5 (Leopard) booting directly from the disc, it started then crashed leaving a black screen with the following promt: local host:/root* (a hash not an asterisk!)
Anybody offer any suggestions as to what I should do?
Can't get back to my desk top. All I have is a black screen with white text starting Darwin bsd. Have tried a safe reboot but after grey then normal blue screen when loading, this disappears and I get back to the black screen again.
I installed several system updates on my 2007 iMac last night, running OS 10.7, and today I can only get a black screen with a flashing white power light when I try to start up. My computer will neither start up nor completely shut down, and my wired keyboard won't communicate either.
