Apple Hardware Test won't start from original Apple DVD

I'll make this one short and to the point, and here're what I did to try to start the Apple Hardware Test - and failed:
1) Disconnected all connected network and hardware except the bare essentials (Apple USB keyboard and mouse).
2) Insert DVD#1 of the original iMac media (then OS X v10.5.2)
3) Shut off iMac. Start, holding 'D' key (with the iMac DVD#1 in the drive)
4) Keep holding 'D' key, AHT didn't start, instead the DVD disc ejects, and the grey screen shows folder with question mark, nothing happens thereafter.
5) Repeated 10x, no difference.
Somebody knows what's wrong?

Holding down C key does start the Mac OS X installer; in which I was able to "partially" diagnose that my HDD is toast by using the Disk Utility. It formats (erases), but as soon as I finished erasing, I tried to verify the disk, and it says it already has problems and cannot be repaired.
I am thinking if during the loading of AHT (from DVD), it tries to cache some files onto the internal hard drive. Since my drive is no good - thus the reason for my using AHT, which is to find out if I get a 4HDD/11 type error - the AHT simply cannot load under my circumstances.

Similar Messages

Apple Hardware test won't start

Hi,
I have tried pressing 'D' on startup, as well as command+D and command +R on startup and nothing works.
This is a macbook late 2008 model running mountain lion.
Appreciate your time in helping me solve this.

When you get your computer, Apple Hardware Test is stored on the hard disk, but it's deleted when you erase the hard disk or upgrade OS X, so it's no longer in the hard disk.
The DVDs which came with your computer have Apple Hardware Test, so insert the Mac OS X DVD and hold the D key while your computer is starting to start in Apple Hardware Test. See > http://support.apple.com/kb/ht1509

Macbook Pro 13" just won't start from original dvd

My MacBook 13", mid 2011, started to slow down, freeze. Tried to start up in safe mode, after that it just won't boot at all. Tried with the original DVD holding down "C" but no disk boot. What to do?
Rgds

Since it's a Mid 2011, take it in for service, it's still under warranty.
Try charging it up and a SMC, PRAM reset, Hardware Test
https://discussions.apple.com/docs/DOC-3046

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Hi, I have a 2009 MacBook Pro 17, which isn't feeling well at all.
It all started when I forgot my account password (It's my personal machine but an overly 'helpful' IT guy at an old company I worked at set himself up as Admin on my mac and then left, as I did shortly after - so I've never had admin access which was never a problem really).
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So I thought I'd buy a copy of 10.5.8 Leopard from ebay - that came this week - and trying to boot from that disc has had no success - if I hold the option key at start-up nothing happens I just get a grey screen and spinning icon. Stranger still if I hold the 'C' key down on start-up the machine goes to grey then chimes and continues to chime like a PRAM reset!
So now when I try to boot the machine normally from the HD I get the Apple logo and spinning wheel, which is on screen for a while, then the machine powers down.
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Any reinstallation is not going to be successful if you have invalid node structure. You have bigger fish to fry here than worrying about DVD access.
Mr Simpson wrote:
The first step of this was to do a 'fsck -fy' and here it told me I had a 'disk0s2: I/0 error.' and 'Invalid node structure' and the volume check had failed.
You also mention that the 10.6 disc would read from the DVD but not allow you into Disk Utility? What happened when you tried to access it? Was it selectable and then didn't do anything?
We can't really narrow down whether it is the DVD or anything else at this time.
If you don't have a backup of the information it is probably toast if you cannot get Disk Utility to work. I would normaly suggest DIsk Warrior but that is a $79 gamble if you are not sure if the drive is working or not. It may be your last hope to recover whatever you can from the drive.
Also, what was the original OS installed on the machine before it crashed? Was it 10.6 or was it the 10.5.7 you mentioned?

MacBook won't start from HD or DVD

White MacBook (A1181) will not start up on HD or system disc. Normal startup gives folder with blinking ? and with system DVD inserted, gives endless message to "shut down by holding the power button and then press again to startup"
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HELP!!!!

No, because even if you're using a DVD as a boot disc, your HD still has to be the one to ultimately read it through the optical disc reader. The DVD is just being read as another partition in a drive. Had the partition been bad, then it would have booted fine. (Even if you haven't really partitioned anything yourself, your "Macintosh HD" is your standard 1 partition. It's kind of like... to put it "real world," having departments in a department store. The whole "store" is your hard drive, but your "Macintosh HD" is a department, and your DVD is a department, like Macy's, Shoes and Clothing.)
Message was edited by: Ryesen_Grear

Powerbook G4 10.4.11 won't start from hard drive . Tried repair, " The underlying task reported failure on exit (-9972).Invalid sibling link,invalid B tree header, invalid map node,invalid record type,the volume needs to be repaired.

Powerbook G4 10.4.11 won't start from hard drive . Tried repair, " Invalid sibling link,invalid B tree header, invalid map node,invalid record type,the volume needs to be repaired.Powerbook G4 10.4.11 won't start from hard drive . Tried repair, " The underlying task reported failure on exit (-9972).Invalid sibling link,invalid B tree header, invalid map node,invalid record type,the volume needs to be repaired.
The underlying task reported failure on exit (-9972).

kauribill wrote:
" The underlying task reported failure on exit (-9972).Invalid sibling link,invalid B tree header, invalid map node,invalid record type,the volume needs to be repaired.
The underlying task reported failure on exit (-9972).
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cornelius

Hardware Test Won't Work!

I have an early 2011 MacBook Pro i5 with 8gb running Mountain Lion and the Hardware Test won't work. Everytime I hold down the "d" key it just boots normally. Since I have an early 2011 Mac I used to have Snow Leopard installed but then I upgraded to Mountain Lion. What should I do?

... the Internet Recovery window wouldn't accept my network name and password.
No idea, but review the chart here: http://support.apple.com/kb/HT4718
If your usual or current Internet connection has requirements or settings not supported by OS X Restore, either change the settings to a supported configuration for the duration of your OS X reinstall, or seek out acceptable networks from which you are permitted to access the Internet ...
Try changing your network settings to conform to whatever OS X Recovery needs.
Also why would my Mac be the the computer built without AHT if I bought it in early 2011?
This long thread describes what happened: Apple Hardware Test (AHT) is GONE!! after Lion install

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Hello,
I have an external disk with 2 drives. The disk is setup as RAID1 (I tried both, ApplesDisk Utilitie's RAID and SoftRaid). In both cases I can't bless the drive as startup disk and get the error Could not find IOKit entry for
IODeviceTree: ... and the iMac also won't start from the external FW drive.
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Any ideas?
thanks
Matthias

Hi Matthias
What make of external HD or enclosure are your drives in?
If it boots with the USB connection then you should try a different FireWire cable.
Dennis

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Thanks

Make sure the Install DVD is the one that *originally came w/your computer*, not scratched, dirty or smudged.
The Install DVD does take awhile to complete. Just keep holding down the "c" key until it takes.
Which "model" & generation G5 iMac do you have?
Need this info so that the knowledgeable users can provide you with the proper troubleshooting solution(s).
http://docs.info.apple.com/article.html?artnum=301724-en How to identify your iMac
http://docs.info.apple.com/article.html?path=Mac/10.4/en/mh355.html Getting information about your computer

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Does it also eject the DVD if you restart holding down the c key until the gray screen / Apple logo appears to boot directly from the optical drive instead of using the option key to invoke Startup Manager?

Apple Hardware Test won't load

Hi,
I'm running OS 10.9.4 on a late 2011 MB Pro and am unable to boot up to the Apple Hardware Test partition. Also won't boot to system install USB flash drive. Any help wold be much appreciated.

It's option key to boot AHT cd. You can run it, but firmware and OS updates makes the disk veriosn obsolete. So don't panick over a false positive.
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If not repeat above and Erase w/Zero option and reinstall the OS. If your going to bother with all that, might as well make the jump to Tiger and iLife '06 (not included with Tiger)

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I have the problem sometimes my display under osx or under windows 7 professional stay black I can't do anything and can only restart the laptop via powerbutton.
error log from Mac:
Interval Since Last Panic Report: 6831 sec
Panics Since Last Report:          2
Anonymous UUID:                    F0F6EAE0-8738-4D83-AB4D-0693D0A4E800
Thu Aug 30 13:56:16 2012
panic(cpu 0 caller 0xffffff7f92161c85): NVRM[0/1:0:0]: Read Error 0x00000100: CFG 0xffffffff 0xffffffff 0xffffffff, BAR0 0xd2000000 0xffffff812543d000 0x0a5480a2, D0, P2/4
Backtrace (CPU 0), Frame : Return Address
0xffffff8125222f70 : 0xffffff8011a1d5f6
0xffffff8125222fe0 : 0xffffff7f92161c85
0xffffff8125223070 : 0xffffff7f9225b5b7
0xffffff81252230d0 : 0xffffff7f9225b62b
0xffffff8125223140 : 0xffffff7f92570883
0xffffff8125223280 : 0xffffff7f9228175d
0xffffff81252232b0 : 0xffffff7f9216b9e6
0xffffff8125223360 : 0xffffff7f921670b8
0xffffff8125223550 : 0xffffff7f921682e4
0xffffff8125223620 : 0xffffff7f93219494
0xffffff81252236e0 : 0xffffff7f93249f8b
0xffffff8125223770 : 0xffffff7f9322f638
0xffffff81252237d0 : 0xffffff7f9322fefc
0xffffff8125223820 : 0xffffff7f932302e6
0xffffff81252238c0 : 0xffffff7f93230d06
0xffffff8125223900 : 0xffffff7f931ebf31
0xffffff8125223a80 : 0xffffff7f9322d2ee
0xffffff8125223b40 : 0xffffff7f931eaa3a
0xffffff8125223ba0 : 0xffffff8011e64929
0xffffff8125223bc0 : 0xffffff8011e65ed0
0xffffff8125223c20 : 0xffffff8011e638ef
0xffffff8125223d70 : 0xffffff8011a981a1
0xffffff8125223e80 : 0xffffff8011a20abd
0xffffff8125223eb0 : 0xffffff8011a10448
0xffffff8125223f00 : 0xffffff8011a195fb
0xffffff8125223f70 : 0xffffff8011aa5ad6
0xffffff8125223fb0 : 0xffffff8011aced13
      Kernel Extensions in backtrace:
         com.apple.NVDAResman(8.0)[6A699209-FB98-316B-A3C0-DCA82AA8C86B]@0xffffff7f920fa 000->0xffffff7f923fcfff
            dependency: com.apple.iokit.IOPCIFamily(2.7)[8C9E06A4-13D0-33F5-A377-9E36F0ECC229]@0xffffff 7f9206f000
            dependency: com.apple.iokit.IONDRVSupport(2.3.4)[E37F420A-B5CD-38ED-9441-5247583B6ACE]@0xff ffff7f920e6000
            dependency: com.apple.iokit.IOGraphicsFamily(2.3.4)[5D671681-D21B-3CCA-9810-B15E648C1B27]@0 xffffff7f920a3000
         com.apple.nvidia.nv50hal(8.0)[9CD95A4A-FD94-349E-A4B6-FC3B74E197F5]@0xffffff7f9 240a000->0xffffff7f9272cfff
            dependency: com.apple.NVDAResman(8.0.0)[6A699209-FB98-316B-A3C0-DCA82AA8C86B]@0xffffff7f920 fa000
            dependency: com.apple.iokit.IOPCIFamily(2.7)[8C9E06A4-13D0-33F5-A377-9E36F0ECC229]@0xffffff 7f9206f000
         com.apple.GeForce(8.0)[91C40470-82BA-329A-A9D7-4C70F28275FD]@0xffffff7f931de000 ->0xffffff7f932a0fff
            dependency: com.apple.NVDAResman(8.0.0)[6A699209-FB98-316B-A3C0-DCA82AA8C86B]@0xffffff7f920 fa000
            dependency: com.apple.iokit.IONDRVSupport(2.3.4)[E37F420A-B5CD-38ED-9441-5247583B6ACE]@0xff ffff7f920e6000
            dependency: com.apple.iokit.IOPCIFamily(2.7)[8C9E06A4-13D0-33F5-A377-9E36F0ECC229]@0xffffff 7f9206f000
            dependency: com.apple.iokit.IOGraphicsFamily(2.3.4)[5D671681-D21B-3CCA-9810-B15E648C1B27]@0 xffffff7f920a3000
BSD process name corresponding to current thread: WindowServer
Mac OS version:
12A269
Kernel version:
Darwin Kernel Version 12.0.0: Sun Jun 24 23:00:16 PDT 2012; root:xnu-2050.7.9~1/RELEASE_X86_64
Kernel UUID: 8D5F8EF3-9D12-384B-8070-EF2A49C45D24
Kernel slide:     0x0000000011800000
Kernel text base: 0xffffff8011a00000
System model name: MacBookPro6,2 (Mac-F22586C8)
System uptime in nanoseconds: 639058131311
last loaded kext at 619649350014: com.apple.driver.AppleUSBCDC     4.1.21 (addr 0xffffff7f93e14000, size 16384)
last unloaded kext at 265588829535: com.apple.driver.AppleUSBUHCI     5.1.5 (addr 0xffffff7f92a46000, size 65536)
loaded kexts:
com.apple.driver.AppleUSBCDC     4.1.21
com.apple.filesystems.udf     2.3
com.apple.filesystems.msdosfs     1.8
com.apple.filesystems.smbfs     1.8
com.apple.driver.AudioAUUC     1.60
com.apple.driver.AppleHWSensor     1.9.5d0
com.apple.filesystems.autofs     3.0
com.apple.filesystems.ntfs     3.10
com.apple.iokit.IOBluetoothSerialManager     4.0.9f8
com.apple.driver.AGPM     100.12.69
com.apple.driver.AppleMikeyHIDDriver     122
com.apple.driver.AppleHDA     2.3.0f2
com.apple.driver.AppleUpstreamUserClient     3.5.10
com.apple.driver.AppleSMCPDRC     1.0.0
com.apple.driver.AppleMikeyDriver     2.3.0f2
com.apple.driver.AppleLPC     1.6.0
com.apple.driver.AppleIntelHDGraphics     8.0.0
com.apple.driver.ACPI_SMC_PlatformPlugin     1.0.0
com.apple.driver.AppleMuxControl     3.2.6
com.apple.iokit.BroadcomBluetoothHCIControllerUSBTransport     4.0.9f8
com.apple.driver.AppleMCCSControl     1.0.33
com.apple.iokit.IOUserEthernet     1.0.0d1
com.apple.Dont_Steal_Mac_OS_X     7.0.0
com.apple.driver.ApplePolicyControl     3.2.6
com.apple.driver.AppleSMCLMU     2.0.2d0
com.apple.GeForce     8.0.0
com.apple.driver.AppleIntelHDGraphicsFB     8.0.0
com.apple.driver.SMCMotionSensor     3.0.2d6
com.apple.driver.AppleUSBTCButtons     235.4
com.apple.driver.AppleUSBCardReader     3.1.0
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless     1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib     1.0.0d1
com.apple.BootCache     34
com.apple.driver.AppleUSBTCKeyboard     235.4
com.apple.driver.AppleIRController     320.15
com.apple.driver.XsanFilter     404
com.apple.iokit.IOAHCIBlockStorage     2.2.0
com.apple.driver.AppleUSBHub     5.1.6
com.apple.driver.AppleFWOHCI     4.9.5
com.apple.driver.AirPort.Brcm4331     600.15.20
com.apple.iokit.AppleBCM5701Ethernet     3.2.5b3
com.apple.driver.AppleAHCIPort     2.4.0
com.apple.driver.AppleUSBEHCI     5.1.5
com.apple.driver.AppleEFINVRAM     1.6.1
com.apple.driver.AppleSmartBatteryManager     161.0.0
com.apple.driver.AppleRTC     1.5
com.apple.driver.AppleACPIButtons     1.6
com.apple.driver.AppleHPET     1.7
com.apple.driver.AppleSMBIOS     1.9
com.apple.driver.AppleACPIEC     1.6
com.apple.driver.AppleAPIC     1.6
com.apple.driver.AppleIntelCPUPowerManagementClient     196.0.0
com.apple.nke.applicationfirewall     4.0.39
com.apple.security.quarantine     2
com.apple.driver.AppleIntelCPUPowerManagement     196.0.0
com.apple.kext.triggers     1.0
com.apple.iokit.IOSerialFamily     10.0.6
com.apple.driver.DspFuncLib     2.3.0f2
com.apple.iokit.IOAudioFamily     1.8.9fc9
com.apple.kext.OSvKernDSPLib     1.6
com.apple.iokit.IOFireWireIP     2.2.5
com.apple.driver.IOPlatformPluginLegacy     1.0.0
com.apple.driver.IOPlatformPluginFamily     5.2.0d16
com.apple.driver.AppleHDAController     2.3.0f2
com.apple.iokit.IOHDAFamily     2.3.0f2
com.apple.driver.AppleSMBusPCI     1.0.10d0
com.apple.iokit.AppleBluetoothHCIControllerUSBTransport     4.0.9f8
com.apple.driver.AppleBacklightExpert     1.0.4
com.apple.driver.AppleSMBusController     1.0.10d0
com.apple.iokit.IOSurface     86.0.2
com.apple.iokit.IOBluetoothFamily     4.0.9f8
com.apple.driver.AppleGraphicsControl     3.2.6
com.apple.nvidia.nv50hal     8.0.0
com.apple.NVDAResman     8.0.0
com.apple.iokit.IONDRVSupport     2.3.4
com.apple.iokit.IOGraphicsFamily     2.3.4
com.apple.driver.AppleSMC     3.1.3d11
com.apple.iokit.IOSCSIBlockCommandsDevice     3.5.1
com.apple.iokit.IOUSBMassStorageClass     3.5.0
com.apple.iokit.IOSCSIArchitectureModelFamily     3.5.1
com.apple.driver.AppleUSBMultitouch     235.7
com.apple.iokit.IOUSBHIDDriver     5.0.0
com.apple.driver.AppleUSBMergeNub     5.1.5
com.apple.driver.AppleUSBComposite     5.0.0
com.apple.iokit.IOFireWireFamily     4.5.5
com.apple.iokit.IOUSBUserClient     5.0.0
com.apple.iokit.IO80211Family     500.15
com.apple.iokit.IOEthernetAVBController     1.0.2b1
com.apple.iokit.IONetworkingFamily     3.0
com.apple.iokit.IOAHCIFamily     2.2.0
com.apple.iokit.IOUSBFamily     5.1.6
com.apple.driver.AppleEFIRuntime     1.6.1
com.apple.iokit.IOHIDFamily     1.8.0
com.apple.iokit.IOSMBusFamily     1.1
com.apple.security.sandbox     220
com.apple.kext.AppleMatch     1.0.0d1
com.apple.security.TMSafetyNet     7
com.apple.driver.DiskImages     344
com.apple.iokit.IOStorageFamily     1.8
com.apple.driver.AppleKeyStore     28.18
com.apple.driver.AppleACPIPlatform     1.6
com.apple.iokit.IOPCIFamily     2.7
com.apple.iokit.IOACPIFamily     1.4
com.apple.kec.corecrypto     1.0
Model: MacBookPro6,2, BootROM MBP61.0057.B0F, 2 processors, Intel Core i5, 2.4 GHz, 8 GB, SMC 1.58f16
Graphics: Intel HD Graphics, Intel HD Graphics, Built-In, 288 MB
Graphics: NVIDIA GeForce GT 330M, NVIDIA GeForce GT 330M, PCIe, 256 MB
Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1067 MHz, 0x80AD, 0x484D54333531533643465238432D48392020
Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1067 MHz, 0x80AD, 0x484D54333531533643465238432D48392020
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x93), Broadcom BCM43xx 1.0 (5.106.98.81.20)
Bluetooth: Version 4.0.9f8 10405, 2 service, 18 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en1
Serial ATA Device: OCZ-VERTEX2, 120.03 GB
Serial ATA Device: Hitachi HTS545032B9SA02, 320.07 GB
USB Device: hub_device, 0x0424 (SMSC), 0x2514, 0xfa100000 / 2
USB Device: USB Mass Storage Device, 0x0457 (Silicon Integrated Systems Corp.), 0x0151, 0xfa140000 / 6
USB Device: BRCM2070 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0xfa110000 / 5
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8218, 0xfa113000 / 7
USB Device: Internal Memory Card Reader, apple_vendor_id, 0x8403, 0xfa130000 / 4
USB Device: Apple Internal Keyboard / Trackpad, apple_vendor_id, 0x0236, 0xfa120000 / 3
USB Device: hub_device, 0x0424 (SMSC), 0x2514, 0xfd100000 / 2
USB Device: hub_device, 0x0424 (SMSC), 0x2514, 0xfd130000 / 5
USB Device: iPhone, apple_vendor_id, 0x12a0, 0xfd133000 / 7
USB Device: Razer Mamba, 0x1532, 0x000a, 0xfd134000 / 6
USB Device: Built-in iSight, apple_vendor_id, 0x8507, 0xfd110000 / 4
USB Device: IR Receiver, apple_vendor_id, 0x8242, 0xfd120000 / 3

Welcome to Apple Support Communities
Install > http://codykrieger.com/downloads/gfxCardStatus-2.2.1.zip Open this app and select Integrated Only. It's a bug with NVIDIA graphics

Apple hardware test won't run

I'm positive my exhaust fan is on it's last leg. I want to run a hardware test to confirm, but nothing works. I've shut down and held D on starting, I've held Option + D, I've held Command + D, I've restarted, shut down and started up with all these. Nothing works. I have a wired USB keyboard, and I've tried with it directly plugged into the mac. I'm at my wit's end here!
20-inch, Early 2008
Processor 2.66 GHz Intel Core 2 Duo
Memory 2 GB 800 MHz DDR2 SDRAM
Graphics ATI Radeon HD 2600 Pro 256 MB
Software OS X 10.9.2 (13C64)

Hi Amanda Marvin!
Try running the Apple Hardware Test by using the steps listed in this article about AHT:
Using Apple Hardware Test
http://support.apple.com/kb/ht1509
If necessary, you may need to also try resetting your SMC if you are having difficulty loading the hardware test:
Intel-based Macs: Resetting the System Management Controller (SMC)
http://support.apple.com/kb/ht3964
Thanks for coming to the Apple Support Communities!
Cheers,
Braden

HT201257 Apple Hardware Test won't stop

My daughter went to turn on her MacBook and the Apple Hardware Test came up. I Googled what the AHT was & so we let it run in order to shut it down. When we started it up again, the AHT popped up again. We cannot get it to stop! (There is no disk inserted & she does not even remember hitting any keys that may have started this in the first place.) Thanks for any help you can lend.

Reset your computer’s PRAM

Hardware test won't proceed - should I upgrade/change hard drive?

Searched the discussion and my problem is a combination of various links...
My powerbook had no problems for close to 5 years. Things started running slowly and of course, things were getting full. Will get an external hard drive in 2 days so burned everything on CDs.
Ran the Hardware Test but it asked me to type "mac-boot" to continue booting;
Screen showed: Invalid memory access at %SRRO:ad3c0108 %SRRI: 3c01086f;
Then some other lingo appeared and didn't offer me an extended test as indicated on the discussion boards. After awhile, I forced shut down.
Took to local apple store and sales sold me 2 512 Ram. I was suspicious and asked another sales b/c I'd thought I could only have 1 chip installed and max was 640 total.
When my order arrived 1 day later, I was told that only 1 slot was available so finally installed 1G. At the counter, when I started up the computer, this flashing globe in a box and then the file with question mark appeared. I was told it was a software problem and they did something to tell the disk where to go at start up.
When I went to pick it up, technician said there was a hardware problem and my disk is failing fast. He wanted to do a diagnostic test and potentially replace the disk.
I took it home to back up the rest of the stuff, did some research, did the MacJanitor. Is it just me or after MacJ, the computer seemed quieter, almost calmer?!
Start up still takes 3 minutes and some slight ping/ clanging sound but still working.
Tempted to do the Hardware Test again since I ran the Disk Utility and things were verified and repaired. Is the Hardware Test the same as the Repair Disk? I can't find any "repair disk" and I keep everything out of the box.
Should I just replace/upgrade my drive instead of spending money doing a diagnostic test?
If it's replaced, (and with the extra ram), can I prolong my computer's life by 5 more years?
Thanks,
I'm a novice who needs advice in lay person language.

Joyce:
Your math is correct. You can buy and probably install an internal HDD for the price of one of those utilities. However, I have both Disk Warrior and TechTool Pro and they are tools I use regularly for OS X maintenance, so they pay for themselves over and over. In any case, I think you have a point and a plan.
I suggest that you use SuperDuper to clone everything over. It is a lot faster and more efficient. You can then test and repair it on the external.
I think you will love what a new 120 GB HDD does for your computer. The newer drives are faster (5400 rpms as opposed to 4200 rpms) than the original drives, and you will notice the difference in performance. In addition your storage capacity triples and the free space helps the performance of your HDD, and lessens the risk of directory corruption. If you are at all handy and would like to attempt the installation yourself, you will find step-by-step directions at ifixit. If you think you would like to attempt it, please post back for some tips.
Once you have the new HDD installed you will need to format it before installation. You can reformat and erase the old HDD, and after you have swapped it out you can install it in a Firewire enclosure and use it as an external firewire HDD. Here are step by step directions for formatting:
Formatting, Partitioning Zeroing a Hard Disk Drive
Warning! This procedure will destroy all data on your Hard Disk Drive. Be sure you have an up-to-date, tested backup of at least your Users folder and any third party applications you do not want to re-install before attempting this procedure.
Boot from the install CD holding down the "C" key.
Select language
Go to the Utilities menu (Tiger) Installer menu (Panther & earlier) and launch Disk Utility.
Select your HDD (manufacturer ID) in left side bar.
Select Partition tab in main panel. (You are about to create a single partition volume.)
Select number of partition in pull-down menu above Volume diagram.
(Note: 1 partition is normally better for an internal HDD. External HDDs usually have more than one. See Dr. Smoke’s FAQ Backup and Recovery for tips on partitioning external HDD.)
Type in name in Name field (usually Macintosh HD)
Select Volume Format as Mac OS Extended (Journaled)
Click Partition button at bottom of panel.
Select Erase tab
Optional: (Select the sub-volume under Manufacturer ID (usually Macintosh HD).
Check to be sure your Volume Name and Volume Format are correct.
Select on Security Options button (Tiger) Options button (Panther & earlier).
Select Zero all data. (This process will map out bad blocks on your HDD. However, it could take several hours. If you want a quicker method, don't go to Security Options and just click the Erase button.)
Click OK.
Click Erase button
Quit Disk Utility.
Please do post back with further questions or comments.
Cheers
cornelius

Apple Hardware Test won't start from original Apple DVD

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