PowerPC :: 20" IMac G5 (1.8ghz Single Core) - Not Booting From DVD?
Jan 18, 2010
I have put a brand new hard drive in the machine. I took off the plastic bezel to the power cord, to make sure it's plugging in all the way. I turned the computer on while watching the LED's on the logic board. All 3 stayed on, and the 4th never came on.
I have unplugged it, left it unplugged for a few minutes, plugged the cord back in while holding the power, then turned it on (forgot what that was supposed to accomplish). No change.
I have reset the PVRAM (or whatever) 3 times in a row by holding command-option-p-r until I heard 3 chimes after the initial boot. No change.
I can get into open firmware, but have no idea what I could even try in there (other than ejecting the DVD).
I hold down "C" while booting, it chimes, it goes to a blank grey background, then proceeds on to the white screen with the apple. It sits there for a few seconds, then starts spinning the circle for a while, then shuts down. I hear the optical drive spin up, but it does nothing.
Every few weeks my iMac will suddenly freeze, the screen going black or white or pink etc. The only way I can get the computer back is to hold down the power button to force a shutdown. Then after a restart everything is OK for a few more weeks. Usually it occurs when I am on the internet. I click on something and suddenly the computer is frozen. I am on OS X 10.6.8 and usually use Safari. Ironically when I opened this forum 5 minutes ago there was a similar sounding problem at the top of the list!
Info: iMac, Mac OS X (10.6.8), FCE 4 + FCS 3 . . . Little Knowledge, Many Opinions.
Someone I know wants to buy a used Mac pro G5. It has a speed of 1,8 Ghz. I think he's going to use it for music. (logic pro, adium). But he said he was going to use FCS as well. His question was if he could replace the G5 singlecore chip, with a G5 dualcore chip. And if that's possible, could somebody give me extra info about compatibility and such. For example, will it just boot without problems when you replaced it, or do you need to do extra things (drivers, reinstalling the os and such). The G5 will be used in the near future for HD video editing. Also, I know the new intel mac pro have graphic cards from nvidia and ati. But what graphic cards do the G5 towers have? are they good?
hey my friend is having a problem with his imac when he turns it on he gets a grey screen and stops there. there is also a grinding noise near the back maybe the hd or disc drive? it grinds 10 times then stops then continues for a couple minutes and then he gets a question mark on the screen.
I am looking to purchase my first Macbook Pro. I am having a difficult time deciding between a $1749 17" from Amazon that is the older 2.8Ghz Core 2 Duo and the $2298 17" (w/ student discount and tax... have to include tax) from Apple that is the newest model. The price difference is $549.
Some things I'm curious about:
1. Intel HD card? Does it really cause that much lag? How is it compared to the nVidia 9400m? I don't mean benchmarks, I mean real life performance.
2. Battery life? Is the battery life in the newest model much better than previous gen?
3. Heat? Is there a difference in heat production between them?
I don't care about gaming, so the 512 300m vs. 512 9600m is no concern.
Does the newest 17" justify the $549 price difference? Are there any other things that I should know between the two?
The HD2600XT is, well, old..I want to get a new graphics card for my mac pro, but I don't want to pay the premium for mac only cards, I've read that you can flash a 8800GT to a mac card, but they're nowhere to be found anymore, which of the currently available cards can be flashed to be a mac compatible cards? I want to be able to use just that card only...
currently i have a blackbook and imac core duo, 17 ". My macbook beats the imac in everything except graphics. Before i got my imac i seriously considered a g5 dual 2.0, but the money wasnt there. I see an apple refurb dual 2.0 for 1599, and im sure i cud get one a lot cheaper used here or on another board. How much of a performance increase will i see IN APERTURE going to the PM, if any? i would need a good increase to justify it, and eve then im not sure my parents would be ok with me spending a few hundred bucks to upgrade
I'm sure I've heard somewhere that it's possible to turn Macs on via ethernet, I've looked around on google and the forums here but haven't found a thing saying how to do it. Is it possible merely I imagined this?
I want to boot a G5 iMac, connected via ethernet through an AirPort Extreme, (802.11n 100Gb model).
I purchased the last generation iMac G5 when it came out a few years ago and I recently tried to sell it. I sent the item to the buyer and he said it would not start. The Apple logo or for that matter anything would not come up. He brought it to the Geek Squad at Best Buy and they said it was an issue that would most likely cost over $500 in repairs. I just got the computer back in the mail and all that happens when the power button is pressed is the white light on the front lower right hand corner comes on for a second, then the machine shuts down. You can also hear the machine begin to start for about two seconds, then it shuts down. Any ideas as to the problem and whether it is fixable without expensive repair costs?
I've been looking around on a few forums, and I've tried to reset PMU, hold the programmer key, take out battery let it be, external screen,... None of it worked for me. I have tried to install Os X Jaguar without upgrading firmware, so it told me that it needed to upgrade. But I can't do that since it doesn't boot anymore. I tried disconnecting the harddrive and boot it without it, it still turns off. [URl]
im very interesting in buying a mac pro but as you know always money is the big problem , i decide to buy a quad mac pro but there is two option , is there to much diference in power processing between Quad-core 2010 "Nehalem" 2.8GHz and 3.2GHz? i check in geek bench mark and the 2.8 GHZ get a result of 8360 and the 3.2 GHZ get a result of 9968. is that to much diference ? please i need some help me in this dilema
is it even possible to upgrade an old dual core powermac g5 to a quad core or even an 8 core.
I have a dual core one and i really need to upgrade to a quad or even 8 but it is so expensive to buy a whole brand new one and i was wondering if there was a way to just get a new processor and more ram or what not.
I have a 2006 Macbook with a "Core Duo" processor. When I got it, one of the RAM slots was busted, so I put a 1gb stick in the working one to add a little speed. My question is, since the maximum RAM in this model macbook is 2gb, would it be possible to install a single 2gb stick into the working slot?
I just put 2 sticks of 512mb in my g5 with these specs pc3200r-30330, the machine doesn't recognize them. I notice that the existing ram got this on the label pc3200u-30330. Pease someone tell me the difference between these 2.
Though I love buying new stuff (and that Blackbook is so damn sexy) I just want to stick with my Single 1.8Ghz G5. I get soo fed up with the problems I face when I'm surfing the web.... which is ALL I DO!
My G5 has 1GB of memory and 160HDD and am still running 10.3.9. All I do is surf the web; so I don't want to buy a new Mac. Is it 10.3.9 that sucks... or what? I am faced with A SURPLUS of "Safari Unexpectedly Quit" signs and MYSPACE never loads right and hardly ever loads photos on myspace pages.
If it's 10.3.9 thats messing my Mac up, I'll get 10.5 the day it comes out and 1GB more of memory. Otherwise I'll get a Blackbook... but I just rather not spend that money.
So the older Mac Pro's from 2008 have 2 2.8ghz Quad Core Intel Xeon processors, without hyperthreading, for a total of 8 cores, and the top of the line iMac has a Quar Core i7 2,8ghz with hyperthreading for a total of 8 (virtual) cores.
With the ghz being the same but less "real" cores, but probably newer CPU architecture, which CPU will actually be faster?
I am wondering if it's possible to use a GeForce 6600GT 256mb AGP card in this machine?
I have this card from another machine that a friend gave me. It was out of a PC, but is a perfectly good card, and would be an upgrade to the 64mb GeForce FX5200 card that's currently in the G5 we have.
I got the 3 dreaded blinking lights on a PowerMac G5 dual 1.8ghz. Turns out the memory is OK but it's the physical slots that are screwy.I found that applying pressure to one of the banks gets it to boot with no problem but then I remove that pressure and the Mac freezes .
I have a June 2004 revision Power Mac G5 (DP 1.8Ghz) with an AGP slow that is dying for a more powerful graphics card.
I have had the machine since new and have it paired with a 23" Cinema Display, Magic Mouse, BT Apple keyboard, 4GB of Kingston RAM, a pair of 500gb internal HDs, several TBs of external storage, Logitech Z2300 speakers, etc. We also have a new 15" Mac Book Pro, a 13" Mac Book, an Apple TV, Airport Extreme, etc. The desktop doesn't get a TON of use but it is still snappy enough for a lot of what I use it for.
However, since I installed Leopard on it, the OS is nowhere near as fast as it was before (with respect to UI graphics, etc).... I should have expected the newer OS would take more of a toil on the system (especially the graphics card) then did Tiger.... the system has only the factory-installed 64mb GeForce card.... I'm assuming that Leopard, probably more than Tiger, can draw from the GPU for graphic-needs/UI work and I'm assuming that a new graphics card would make a difference....
I just need help deciphering the cards that are available.... 9800XT?? X800??? Any advice on compatible 8x AGP cards would be AMAZING.
The first Core i7 and Core i5 benchmarks are available. Quite amazing to see how much faster the Core i7 is even compared to the Core i5. (via digg) I'll definitely go for the Core i7 now that I've seen these results.