Model A1181: 1.83, 2, 2.1, 2.13, 2.16, 2.2, or 2.4 GHz Core 2 Duo processor

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Cannot get to the blue screen

I have a MacBook 2.4 (SN 0P1) here that would only boot up fully via the Safe Boot Mode. Any regular boot via the internal hard drive, an external hard drive or the optical drive would not get me to the blue screen. After the spinning gear the computer will immediately switch to the dark mirrored gray background that is used when booting in the Verbose Mode or Single User Mode and stay there. And the only way to shut it down is to hold down the on button, which also causes the machine to reboot. After erasing, repairing, and reformatting the HD I installed a fresh copy of Snow Leopard on the MacBook with my Mac Pro via the Target Mode. Still only being able to boot fully in the Safe Boot Mode I created an account and checked out other parts of the computer. Everything that is loaded during this type of boot seemed to be working. However, after being prompted for a Software Update and restart the computer it now will not fully boot in any mode. The blue screen does flash now, but for only a whisper.

Here is what I get just before the dark gray screen when trying a Verbose Mode start up…

Waiting for DSMOS…

Previous Shutdown cause:-40

DSMOS has arrived

IntelMemory::intit

IntelMemory::intit

InititPool: offset=0x08000000 size = 0x08000000

I think the last line may read AirPort: RSN handshake complete on en1. I am not sure of this because it is only a flash.

I have another MacBook 2.1 that is fully functional and I have tried switching out the ram (even trying one slot at a time) and exchanging the two hard drives.

Using DiskWarrior did return a lot of incorrect text encoding, incorrect Volume info, etc., but still after replacing the directory nothing changed. I also noticed that when resetting the SMU on the working MacBook with the power cord attached that there is a beep along with the blinking front light. However on this MacBook only the front LED blinks, there is no sound. Is the SMU reset?

Thanks in advance for any help or comments.

Answered! View the answer I have this problem too

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Apple MacBook "Core 2 Duo" 2.4 13" (White-08) Specs

Identifiers: Early 2008 - MB403LL/A - MacBook4,1 - A1181 - 2242

Nicely done question

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Is there a pattern to the blinking lights?

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Chosen Solution

I found the culprit; we have a small liquid spill from a sticky substance, maybe pop. It's right between the heat CPU sink and the AirPort card.

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Most Helpful Answer

Switch the hard drives and see if your results change.

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Mayer thanks for the response, and no there is no pattern just the usual rapid blinking, a short outage and then on again with the start up chime and the screen blink. That is exactly as it is on the working MacBook minus the beep. Exchanging the hard drive gives the same results.

Here is the same start-up sequence from the working MacBook...

Waiting for DSMOS…

Previous Shutdown cause: 5

Atheros: mac 18.3 phy 6.1 radio 10.2

DSMOS has arrived

AirPort_ArthrFusion21: Ethernet address 88.16cb:ba:67:

5I088211Controller::dataLinkLayerAttachComplete(): adding AppleEFINVRAM notification

AirPort:Link Down on en1. Reason 1 (Unspecified).

En1: 882.11d country code set to ‘US’.

En1: Supported channels 1 2 3 4 5 6 7 8 9 18 11 36 44 48 52 56 68 64 149 153 161 165

AirPort: Link Up on en1

AirPort: RSN handshade complete on en1

I think the clue may be what is missing here, the lines "IntelMemory::intit" that is returned after DSMOS has arrived. I am I missing something here to verify that this is a Mac, that his is licensed software, or should I be looking somewhere else? I am clueless.

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Mayer I took your advice and used the same hard drive on both computers and these are the lines that are not on the working Mac.

IntelMemory::intit

IntelMemory::intit

InititPool: offset=0x08000000 size = 0x08000000

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Joe Gordon will be eternally grateful.
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