PowerPC :: G5 ECC Ram Blinking Lights?
Jun 19, 2010
I haven't made many posts here, but I know this is an excellent site. I have a Power Mac G5, Dual 1.8 GHz PPC (June 2004). I found some (4x1GB sticks) PC3200 Samsung Ram for it. I put it in the computer, turned it on, and the power light flashed twice, waited a while, then flashed twice again and kept cycling. After looking around a while I saw that that probably means it is incompatible ram (?).
The ram that I have has an "R" after PC3200. Is this a problem? Anyways, back to my story, So I put the ram back in that I originally had running and it does the same thing (with the flashing lights). I had to go at this point so I said f-it and I will work on the problem on Sunday or Monday. It is just bothering me why it is not working. Can anyone provide any insight? It may just be that the ram isn't properly seated. I really hope that is the problem,
PS: Information that was on the Samsung Ram:
PC3200R-30331-C3 1GB DDR PC3200 CL3 ECC
KR. M312l2920CZ3-CC. 0616
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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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Jun 5, 2012
My macbook pro 13" Mid 2010 model will simply not turn on! I tried does SMC and PRAM but still no results. The Macbook gives me 3 green blinking lights on the battery indicator and nothing else. I already tried switching the ram for a dead or faulty ram but still nothing. Also the power adapter doesn't seem to want to work. When I plug it to the macbook, I can hear small sparks each time, looking at it, there are some black marks on both the charger and the mac. [URL]s
Info:
MacBook Pro
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Sep 1, 2007
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Dec 6, 2008
I have a question on the charge indicator on my wife's G4. Her DC in-board was acting flaky where it would alternate between charging and not charging every 5 minutes. I searched the internet and determined it was the DC in-board and I bought the part and swapped it out myself. I just replaced that in her laptop and it now doesn't do that but I do have another question on the expected G4 behavior. When the battery is running low with the lid open and I plug in the power cord it will turn orange to indicate it is charging If I close the lid it stays orange and goes to sleep as expected. But if I then open the lid it will turn green for a couple minutes and then go to orange.
Shouldn't it stay orange the whole time no matter if I take it out of sleep mode or not? My Macbook Pro stays orange once it is charging and doesn't stop until it is fully charged. The reason it concerns me is I just replaced the battery on her laptop after the DC in-board issues described above. The constant charge/no charge made her battery only hold a 20 minute charge. It seems switching from charge to no-charge for the couple minutes after waking up would mess with the battery as well. I reset her Power Management Unit thinking that would clear things up maybe and had no effect. Can someone confirm if her computer if behaving as it should.
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Feb 16, 2008
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Sep 4, 2006
Tonight I came into my office and my PowerBook was sleeping. I have an external display and I usually turn my display on and wiggle the mouse (after I turn that on) and nothing happened. I looked and my display was still in standby mode, my wacom and eye tv had the same behavior. The powerbook light stopped blinking (I heard the drive wake) and then nothing. Nothing happened still. I opened the lid, hit the power button and still nothing. Held it down, and nothing. I ended up having to take the battery out and then I started the machine. Since then I've rebooted twice just for fun and since then the below screenshot shows that the "Jessica's Computer" window keeps popping up.
Two questions:
#1 What could have happened or what does it mean when the powerbook is sleeping, then wakes but never really wakes and just shuts off?
#2 What is up with that window opening as though this is some sort of start up program you'd find in windows?
Specs: Powerbook 1.67 ghz second to last rev...rev D I think. 1.5 gig ram. os 10.4.7
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Mar 25, 2009
The other day the screen started blinking randomly. It'll flicker for a few seconds and then go white with vertical grey lines for a few seconds. Then it will go back to normal. There doesn't seem to be a pattern to it. Sometimes it will go through that process for five minutes and then stop. Other times I can be working on it for hours and nothing will blink or act screwed up.
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Jul 6, 2009
I'm having an issue with my PowerBook G4. It wouldn't turn on at all before, so I installed another motherboard. Now it will power on, but it only shows this folder icon that blinks. I'm a complete n00b to macs. If this were a PC I would of fixed it by now. I need some help. I've tried the installation disk, but when I hold down the C key, it takes longer, but it just shows that folder again. When I hold down the Option key, it only gives me a reload button, and an arrow button, but no boot up options. Do you think it could be a problem with this other used motherboard? Or is it that I just didn't put it in right? I've double checked all the hardware, and it seems to be all connected. The keyboard lights up, and the trackpad works, and it makes the boot-up sound.
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Jul 21, 2009
I have a G5 dual 1.8 power PC...Bought some ram put it in & booted up. Then a red light came on the logic board behind the power button. The machine wouldn't turn on....I called apple care & we rearranged the ram, now the red light is gone but my system still won't boot up. The white power light blinks every few seconds... the apple store told me sorry can't help because your machine is vintage. Even if my logic board is fried is there a place to buy one on the cheap?
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Oct 22, 2010
I am very want to buy one but I seem doesn't had keyboard backlight.
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Apr 20, 2012
My old PPC G5 has the front LED (white) flahing three times - I've looked at the various notes about the poddibility of this being a RAM issue, I've checked out the slots, cleaned them and the RAM sticks too, all to no effect. After being switched on for a while, the fans come on and I have a Hovercraft under my desk!
Info:
PowerMac, Mac OS X (10.5.8), To be supplied
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Sep 6, 2009
I am using a 3D scene using two lights.
The backgrounds is a soft green/yellow tone.
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Information:
G5
Mac OS X (10.5.5)
2x3GHz Quad-Core Intel 10GB memory
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I bougth a heat gun for 16 euros (Leroy Merlin). It is able to heat up to 500 Celsius and had two modes. I assumed the low mode may be around 200 celsius or so. Then opened the powermac, and started heating the rectangle area between the two memory banks. Slowly, moving it around, heating (not over the ram, just in the middle area). A few times I turned the max power for the heat gun as my intention was to "melt' the micro-fracture.
Info:
powermac G5, Mac OS X (10.5.8), G5 back from death
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I reset the SMC again to ty and fix this but there was no change.
Now, I could be wrong, and maybe that's how it always was, but I do remember them fading no matter whether the computer was active or off.
Can anyone confirm this and if so, provide any possible fixes?
It's not a huge issue, just a minor annoyance now that I'm aware of it.
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Fast forward to today and I used software update to upgrade the firmware. After I restarted the computer my Macbook would not even turn on. No lights, no chimes, no nothing. I don't even get a light on my magsafe power adapter when I plug it into my Macbook anymore.I tried resetting the PRAM, resetting the SMC, reseating the RAM, and turning it on without the battery in and it still won't turn on.What else can I do? My warranty period JUST expired so I don't want to shell out $500+ to get this thing fixed. Could my logic board be dead?
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Info:
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