PowerPC :: How Can I Test G4 IMac RAM
May 8, 2008
Recent switcher here. Picked up a G4 17" iMac, and LOVE it.
It could use a RAM upgrade, though. For some reason, the internal RAM isn't being used. The System Profiler claims the spot is empty. The easy to get to one on the bottom seems to be working fine, but it's a lowly little 256.
I'd like to upgrade to its full potential, but am concerned the problem with the internal might be a logic board problem. Any way to tell?
Should I just get a 2gb stick for the known-good slot? Where can I get one for less than the $87.99 Crucial wants for a 512mb?
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Jun 25, 2012
My son's 17" imac PPC G5 was not booting up. After a trying a couple of things I got it to boot using Disk Warrior and reparing the file directory. At that time I also ran DW's hardware test which said the drive was fine. My son hard restarted it shortly after I fixed it and it wouldn't start up again. Just a gray screen, no apple logo. When I tried to use DW again it told me there were problems with the hard drive and it couldn't fix the problem. I tried to fix the hard drive in target disk mode using Disk Utiltiy and Drive Genius. No luck. So I pulled a working drive out of my Mac Pro and reformatted it and swapped the internal drive of the iMac with it. There were no DIP switches to set. Started up the imac with a Leopard retail disk thinking I would just install a fresh system onto the replaced internal drive of the iMac. Disk Utility on the leopard disk didn't see the hard drive. Now I'm beginning to think it's a logic board problem but I can't find the original disks to do a Hardware test with. Is there some other way to test a logic board? Or some other idea that I'm not thinking of that could be wrong with the machine?
Info:
Mac Pro, Mac OS X (10.7.4), ATI 1900, 8GbRAM
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Jun 13, 2009
What's the best way I can test RAM in an old iBook G3? It had a bad module so I replaced it. All seems okay now, but I want to test it to be sure it's all good. Normally I'd just pop in Memtest86+, but Memtest86 doesn't support PPC (obviously).
I don't have any disks for it or anything, so no Apple Hardware Test disk.
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Jun 23, 2010
I am receiving a G5 Power Mac and I will need to run the Apple Hardware Test to check it. It has no install disks. Does anyone know where I can obtain the Hardware Test to check the computer? I do have a Mac Mini install disk for my Intel Mac Mini, will that Hardware test work with the G5?
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Oct 18, 2010
I have downloaded what I assume is the correct AHT image (iBook Version 1.2.4 [URL]) from Apple Support. After burning it to a CD, using disk Utility, it fails to boot on my late 2004 14" G4 1.33ghz IBook M9627B/A.
Am I doing something wrong or is there another version of AHT that is available as a download that will work?
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Nov 4, 2006
After 3 days of contact with Apple support they have determined that even though they sold units with defective logic boards and the serial number of our unit falls in the range of units with the problem, Apple is not going to honor the replacement or prorate repair since the program expired in August...I thought only software houses used customers to beta test their products
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Feb 27, 2008
if you recall a thread I started trying to get help on why the Mac Pro was crashing... I finally narrowed it down.After speaking to about 4 different people at apple.... they had me run the Apple Hardware Test off the boot CD.I took out EVERYTHING except the 2nd DVD burner (Apple Branded Superdrive from my old 2.5 Dual G5)... and ran the test.The Hardware Test ACTUALLY FROZE IN THE MIDDLE OF THE RAM TEST.I thought I had bad aftermarket ram... as it wasn't playing nice with the Apple ram when I added them together.Looks like I had fine aftermarket ram... the Apple ram was bad.I REPLACED the Apple Ram with the Aftermarket Ram... and the Hardware Test completed fine.So, now I'm going to be calling them again in the morning and letting them know what happened. I wonder if they'll just let me RMA the bad ram, or if I'm going to have to lug this dang thing down to an apple store.I WONT BE HAPPY IF I HAVE TO DO THAT.Oh, and no more lockups since switching out the ram... and all the other quirks (not able to burn CDs in Windows, sloooow Internet page draws, etc...) are all but gone now.
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Aug 12, 2010
I got my first mac yesterday. iMac quad core i5.
I was wondering if there was any where to test the resolution of the screen e.g full HD videos to see the true quality of the screen?
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Mar 26, 2009
I've posted on here before that I'm getting significantly slower framerates on WoW than others with the GT130 or the 8800GS or even some ATI 2600's (on similar settings and resolutions) so now I'm thinking I have a lemon. Is there any way I can test my card to see if it's working as it should be??
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Mar 26, 2012
I have an iMac intel core 2 duo late 2006. I have upgraded it to snow leopard. From two months ago, it began to show distorted pictures, random lines/pixels/, and regular freezing. But if I boot it into the safe mode, it works well, although there is no sound or webcam. I did a research online and it seems that I should run apple hardware test (AHT) first. But the DVDs came with this machines have been lost. where can I download this software?
Info:
iMac, Other OS, Fedora 6
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Sep 27, 2009
I've been playing a bit of Poker using the PKR application (It's a cider port from what I've seen). I'm finding that on my iMac (and not my MacBook Pro), after playing for a while the graphics go a little bit screwy then it freezes the entire system. To try and diagnose the problem I want to see if it's the app or the GPU which is causing the problem. Does anyone know how I can stress test the GPU?
What's odd is that even though the app seems to be very CPU and GPU heavy, I don't really notice any fan noise from the iMac. I'm just concerned that it may be overheating.
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Sep 6, 2014
Apple Hardware Test - Errorcode HDD-1378. Know what it means? My SuperDrive is acting up so it probably has to do with the drive.
Info:
iMac, Mac OS X (10.7.5), SuperDrive
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Apr 9, 2012
I have a 17" unibody MBP (early 2009, specs below). It was running hotter than usual the other day, so I F2 booted into AHT to run a diagnostic. The status box within AHT showed 1 second into the 1st pass, and never got beyond that. Several seconds after that status message was displayed, the cursor froze. The time counter never advanced after that, and although I waited a long time, nothing happened. The test froze.Â
I've tried it several times more. It once worked, but every other time has frozen. Checking the "extended test" box, or trying to run in loop mode has made no difference - still freezes at "1 second".Â
I've had this machine for 3 years, OS's Leopard through Lion, and this has never happened before. I last ran a test, successfully, in January. I've not changed any components or suffered any damage since then. Memtest (ver 4.22) says my RAM is fine. (I ran this because the first portion of the AHT is the RAM component.) Aside from the aforementioned overheating episode, which disappeared, my machine's been fine.Â
early 2009 MBP unibody 17"
2.93 Core 2 Duo
8 GB RAM
750 GB HD
Info:
MacBook Pro, Mac OS X (10.7.3)
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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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Jan 1, 2010
I am doing a presentation for a class thingy in technology about new media and i'm trying to express how when macintosh youtubers started uploading video blogs when they switched to intel/intel made iMacs and about this media blah blah blah. In the pic attached is that a iMac G5 or intel. I see spot light on the top right so it's either running tiger or leopard. I thought I saw a apple remote magnetic thingy on the side. Did the iMac g5 have one?
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Jul 14, 2010
My intel 2006 iMac recently died, and I'm wondering if I could one of the 1GB RAM sticks into the a G3 iMac I own. And more importantly: If I could put the hard drive from the intel iMac into the iMac G3.
The intel iMac was made in late 2006 and the iMac G3 was made in 1999, 1998 or 2000.
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Sep 12, 2010
I am new to Mac and wanted to see if there was a way of testing the firewall in a Macbook.
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Sep 8, 2009
With Leo, you install CD #2 and restart with D key ,but it doesn't work with Snow Leo... ...talking about the Apple Hardware Test
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Apr 28, 2010
I ordered a i7 15" Macbook Pro high resolution anti glare screen over a week ago. I've been reading lots of forums on the subject and have heard about the small print, yellow tint to the bottom half of the screen, the laptop not sleeping etc.
So I contacted the store to find out about the possibility of returning it if I'm not happy. They said I can spend all the time in the store with it but as soon as I leave the store there is a 15% restocking fee. It hasn't arrived yet but I'm expecting it any day now.
Can someone tell me all the tests I can perform in the store before I leave?
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Sep 16, 2010
I have a MAC OS X 10.4.11 IBook G4 1.1. It's acting up on me. Crashes often and freezes as well. The only CD I can find is the Mac OS X Tiger Install DVD. Is this the Hardware test cd as well? If yes, how do I get the hardware test started. I tried the "restart while holding "C" and "restart while holding the "option key"". Doesn't work. Don't see a hardware test option. If no, Can I download the application?
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Mar 17, 2012
I have got my MBP with 10.6.7 installed now have updated to Lion.Â
So, Whenever I need to run hardware test, i need to insert my CD. Â
Now problem is, I got too many scratches on my CD and it's being tough to carry it all the times. Â
Is it possible to run hardware test without inserting CD and other way around. Â
Info:
MacBook Pro, Mac OS X (10.7.3)
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Mar 24, 2012
How do you run a hardware test?
Info:iPhone 4S, iOS 5.1
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Apr 12, 2012
I have a new mac mini running OS 10.7.2 and I have just noticed problems with keyboard and mouse intermittently not working, along with other random glitches that seem to be hardware related. I tried restarting while holding down the "D" key to run hardware test, but all I get is the computer trying to get onto the Internet to restore. It then asks to choose a network, and when I drop down the menu of network choices, my home network is not listed -- only my neighbor's.  Right after purchase I cloned my OEM system drive over to a faster HDD, and the OEM drive is now an external backup. I wouldn't think that would matter since everything has been working fine for the last 3 months. How can I run a hardware test?
Info:
Mac mini, Mac OS X (10.7.2), Windows 7 Mid-2011, 8 GB, dual HD's
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May 6, 2012
What is the best was to diagnose possible motherboard faults on a Mac? I'm having various problems which appear to be hardware related (i.e. re-formatting, re-loading OSX, etc don't seem to fix them and the problems appear at different times running different processes) so want to check the motherboard out.Typical problems are a USB hard drive suddening going off-line, the DVD burner suddenly resetting itself for no reason, screen not redrawing properly etc. and all these only happen occasionally. The only test I can find is a RAM test (various programs allow this including Tech Tool Pro 6) but is there a way to test other components?
Info:
MacBook Pro, Mac OS X (10.7.3)
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Sep 4, 2014
Is there a way I can run a diagnostic test on my Macbook Pro and how do I check how much memory I have as well?
Info:
MacBook Pro (Retina, 13-inch, Early 2013), iOS 7.1
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Dec 20, 2007
Can anyone detail how to test my RAM chips? I think I have a bad one. If I recall it is tested from the startup disk or some other disk -
Information:
G5 2.7
Mac OS X (10.4.6)
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Apr 22, 2008
I read somewhere that memtest can be used to test the memory of your mac. I tried it and it didn't even know what memtest was. Is there a way to test the memory in the unix shell?
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Nov 27, 2010
I rebooted and held down the D key and all I get is a grey screen.
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Dec 10, 2010
I'm stuck between knowing if my MBP has a bag logic board, worn out plugs going Into it, or other reasons. It will not power on at all. About 5-10 minutes prior it was perfect. The battery had power, and when its not plugged up the green light is very bright. I figure since the I/O board is connected to the Logic and it shows power, that it may indicate its ok. But i dont know, since its not directly hooked to it. Apple / Geniuses and Other shops just give me quotes on changing out the logic board after observation of it not getting power...never have said anything relating to "After Testing the logic board...." So I am wondering, whats the secret? how is it done? CAN it be done at home? or, does anyone know what the shops/techs use to test boards?
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Jan 14, 2009
I have a busted DVD drive, and I need to run the AHT utility. I heard it was in the /system/Library/CoreServices/ folder. It's not for me. And so, pressing "d" or "f2" on a reboot doesn't work. Anything I can do to run AHT without getting my DVD drive repaired first?
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