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.

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PowerPC :: How To Add 2nd Proc To A Single 1.8Ghz

Jun 15, 2007

Just wanted to know if I could find just the proc. and then make it work..?

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PowerPC :: How Much Faster Would A 2.8ghz IMac Be Than A Dual PPC 1.8ghz G5 ?

Dec 17, 2007

How much faster would a 2.8ghz 24" iMac be than a Dual PPC 1.8ghz G5 with 512mb ram?

Barely faster? Twice as fast? 10 times faster? Light years faster?

I couldnt find any tests so if you have input or test links let me know!

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OS X V10.6 Snow Leopard :: IMac (2.8GHz Core 2 Duo) Occasionally Freezes With Black Or Coloured Screen?

Jun 21, 2012

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!

iMac, Mac OS X (10.6.8), FCE 4 + FCS 3 . . . Little Knowledge, Many Opinions.

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PowerPC :: Replace Tower G5 Single Core Chip To Dual One?

Jun 23, 2009

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?

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IMac :: IMac Ram Core Duo - Can Use A Single 2GB Chip?

Dec 17, 2010

I have one of the original intel imacs, core duo 1.83.I see it supports 2GB of ram, does anyone know if I can use a single 2GB chip to get there?

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PowerPC :: Imac G5 1.8GHz PPC Upgrade?

Mar 2, 2009

i recently bought a used imac g5 1.8ghz version 10.3.5.

is there any way i can change the processor to an intel processor as i cant seem to upgrade my os (and a lot of other programs) running on the current version.

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IMac :: 20 Inch 2ghz Intel Core Duo White Not Booting

Sep 23, 2009

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.

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PowerPC :: Wireless Card For A 1.8Ghz IMac G5?

Mar 29, 2008

would this fit?


if not, where can I get one that will?

Am I better off getting a USB wireless N reciever?

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Software :: Upgrade Imac 1.8GHz PowerPC G5 From 10.3.9

Jan 22, 2010

I've got an old iMac 1.8GHz PowerPC G5 that I love to use for surfing the web etc.

I'm finding that I can't view anything that requires Flash as my system (10.3.9) won't allow me to download the latest Flash or Firefox.

I tried asking in the local Apple store how I could upgrade my OS but the guy said they don't sell the OS upgrade anymore.

Is there anything I can do to upgrade my OS so that I can download newer versions of software like Flash or Firefox?

I have another computer (imac intel) but I really don't want to have to get rid of this one as I like it and apart from the OS issue, it still works fine.

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MacBook Pro :: 2.8Ghz Core 2 Duo 17" Versus 2.5Ghz Core I5 17"

Aug 3, 2010

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?

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Mac Pro :: GPU Upgrade For 8-Core 2.8GHz?

Mar 5, 2009

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...

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PowerPC :: PM G5 From IMac Core Duo - Macbook Beats Imac In Everything Except Graphics?

Sep 30, 2006

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

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PowerPC :: Booting A G5 IMac Via Ethernet?

Nov 15, 2007

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).

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PowerPC :: Using IMac G5 With ISight Not Booting

Nov 4, 2009

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?

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PowerPC :: IMac G3 - Not Booting (6 Sec Shutdown)

Nov 24, 2009

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]

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Mac Pro :: Difference Between Quad Core 2010 "Nehalem" 2.8GHz And 3.2GHz

Nov 24, 2010

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

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PowerPC :: How To Upgrade Dual Core Power Mac To Quad Core?

Apr 1, 2008

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.

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MacBook :: Core Duo Max RAM / Install Single 2gb Stick Into Working Slot?

Nov 8, 2010

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?

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PowerPC :: Ram For G5 1.8ghz?

Oct 19, 2006

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.

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PowerPC :: 1.8Ghz G5 Pull Through?

Mar 8, 2007

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.

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Hardware :: Dual Core Versus Quad Core Imac?

Oct 21, 2009

I do alot of photography with a canon dslr, I also plan to edit short HD videos as well as some photoshop and flash animation work.

Will I benefit greatly from the Quad Core Imac over the Dual Core Imac?

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IMac :: New IMacs To Use Both Dual-core And Quad-core Configs?

Feb 2, 2009


What you say guys?

I know the same article is on main page

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IMac :: Is The Quad Core I7 Faster Than The 2008 Octo-Core Mac Pro?

Oct 22, 2009

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?

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IMac :: Quad Core I5 OR Base Model Core I3?

Jul 28, 2010

I know other threads exist, but they don't have responses specific to me so what's the harm in one more?

So, I am going to be selling my late 2008 15" MacBook Pro this week to get a new 27" iMac and I just need some legitimate advice from those "in the know" on processors.

I plan on having this iMac for about 3 years to do the following tasks:

1.) Record and edit HD cable (1080i) from an Elgato EyeTV HD - will include some encoding of 2+ hour sports game recordings

2.) Some light editing of 720p iPhone 4 clips in iMovie

3.) Surf the web, iTunes, iPhoto, Mail, and all the other standard stuff

Assuming budget is an issue, would you recommend me spending the extra money for a Quad Core i5 iMac or would I be ok based on the info above just going with the base Dual Core i3 model?

Like, will there be a considerable difference in the two machines (factoring in processor and graphics card) that will really be worth the extra $300 - $400 for 3 years of use?

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PowerPC :: Use A GeForce 6600GT 256mb AGP Card In PM G5 1.8ghz?

Mar 16, 2008

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.

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PowerPC :: Got The 3 Dreaded Blinking Lights On A G5 Dual 1.8ghz?

Oct 15, 2009

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 .

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PowerPC :: Power Mac G5 Dp 1.8GHz Fans @ Full Speed

Jun 25, 2010

My PCI bay fan is running at full speed no matter what. The temperature sensor reads correctly in OS X, so I don't think it's a bad sensor.

Is there any way to set the fan speed manually, say in openfirmware?

It's a 1.8 DP June '04; I've ran ASD 2.5.8 to calibrate and test the mobo, which passed.

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PowerPC :: Graphic Card Upgrade For 2004 DP 1.8Ghz Power Mac G5

Aug 15, 2010

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.

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Hardware :: First IMac Core I7 And Core I5 Benchmarks?

Nov 13, 2009

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.

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