The beep code '''One tone, repeating every five seconds''' can also mislead in older systems! We need to fix this first before we tackle the circle with a line through it - '''Prohibitory symbol'''
I have found a dead PRAM battery can also cause this. Remember you unplugged your system from power, so for awhile the system sat with no power connection! What people forget is the iMac uses vampire power stealing a small amount of power from the power cord to hold the settings, that way it’s not fully dependent on the lithium Ion battery.
You’ll need to replace the PRAM battery CR2032 3V lithium Ion button cell.
Follow this guide to get to it: [guide|8963]
[image|2145567]
You do want to zero its settings before you put the fresh battery in. With the old battery removed, with the power cord still removed, press and hold the power button to reset the SMC for a good 2 minutes. Then insert the new battery connect your keyboard and mouse and then lastly your power cord. But don’t turn it on quite yet!
We still need to reset the PRAM settings! Press these four keys together: '''Option, Command, P,''' & '''R''' keys as soon as you’ve press the power button to start the system.
At this point your system should no longer have the beep tone.
=== Fixing the '''Prohibitory Symbol''' ===
-
Hopefully all we need to do here is fix the Startup disk setting. So shut down your system and this time restart it pressing the '''Option (⌥)''' key this will allow us to gain access to the Startup manager so you can select your boot drive [https://support.apple.com/en-us/HT202796|How to select a different startup disk]. If the drive fails to show up then you’ll need to replace it and install a fresh copy of your OS. Let us know if that’s the case so we can dive into what you need to watch out for, while not hard there are a few things you’ll need to figure out before you start.
+
Hopefully all we need to do here is fix the Startup disk setting. So shut down your system and this time restart it pressing the '''Option (⌥)''' key this will allow us to gain access to the Startup manager so you can select your boot drive [https://support.apple.com/en-us/HT202796|How to select a different startup disk]. If the drive fails to show up then you’ll need to replace it and install a fresh copy of your OS.
+
+
Let us know if that’s the case so we can dive into what you need to watch out for, while not hard there are a few things you’ll need to figure out before you start.
=== References: ===
* [https://support.apple.com/en-us/HT202768|About Mac startup tones]
* [https://support.apple.com/en-us/HT204156|If your Mac doesn't start up all the way]
* [https://support.apple.com/en-us/HT201295|How to reset the SMC of your Mac]
* [https://support.apple.com/en-us/HT204063|Reset NVRAM or PRAM on your Mac]
* [https://support.apple.com/en-au/HT204323|If your Mac starts up to a question mark]
The beep code '''One tone, repeating every five seconds''' can also mislead in older systems! We need to fix this first before we tackle the circle with a line through it - '''Prohibitory symbol'''
I have found a dead PRAM battery can also cause this. Remember you unplugged your system from power, so for awhile the system sat with no power connection! What people forget is the iMac uses vampire power stealing a small amount of power from the power cord to hold the settings, that way it’s not fully dependent on the lithium Ion battery.
You’ll need to replace the PRAM battery CR2032 3V lithium Ion button cell.
Follow this guide to get to it: [guide|8963]
[image|2145567]
You do want to zero its settings before you put the fresh battery in. With the old battery removed, with the power cord still removed, press and hold the power button to reset the SMC for a good 2 minutes. Then insert the new battery connect your keyboard and mouse and then lastly your power cord. But don’t turn it on quite yet!
We still need to reset the PRAM settings! Press these four keys together: '''Option, Command, P,''' & '''R''' keys as soon as you’ve press the power button to start the system.
At this point your system should no longer have the beep tone.
=== Fixing the '''Prohibitory Symbol''' ===
Hopefully all we need to do here is fix the Startup disk setting. So shut down your system and this time restart it pressing the '''Option (⌥)''' key this will allow us to gain access to the Startup manager so you can select your boot drive [https://support.apple.com/en-us/HT202796|How to select a different startup disk]. If the drive fails to show up then you’ll need to replace it and install a fresh copy of your OS. Let us know if that’s the case so we can dive into what you need to watch out for, while not hard there are a few things you’ll need to figure out before you start.
=== References: ===
-
[https://support.apple.com/en-us/HT202768|About Mac startup tones]
-
-
[https://support.apple.com/en-us/HT204156|If your Mac doesn't start up all the way]
-
-
[https://support.apple.com/en-us/HT201295|How to reset the SMC of your Mac]
-
-
[https://support.apple.com/en-us/HT204063|Reset NVRAM or PRAM on your Mac]
-
-
[https://support.apple.com/en-au/HT204323|If your Mac starts up to a question mark]
+
* [https://support.apple.com/en-us/HT202768|About Mac startup tones]
+
* [https://support.apple.com/en-us/HT204156|If your Mac doesn't start up all the way]
+
* [https://support.apple.com/en-us/HT201295|How to reset the SMC of your Mac]
+
* [https://support.apple.com/en-us/HT204063|Reset NVRAM or PRAM on your Mac]
+
* [https://support.apple.com/en-au/HT204323|If your Mac starts up to a question mark]
The beep code '''One tone, repeating every five seconds''' can also mislead in older systems! We need to fix this first before we tackle the circle with a line through it - '''Prohibitory symbol'''
I have found a dead PRAM battery can also cause this. Remember you unplugged your system from power, so for awhile the system sat with no power connection! What people forget is the iMac uses vampire power stealing a small amount of power from the power cord to hold the settings, that way it’s not fully dependent on the lithium Ion battery.
-
You’ll need to replace the PRAM battery CR2032 3V lithium Ion Button cell.
+
You’ll need to replace the PRAM battery CR2032 3V lithium Ion button cell.
Follow this guide to get to it: [guide|8963]
[image|2145567]
You do want to zero its settings before you put the fresh battery in. With the old battery removed, with the power cord still removed, press and hold the power button to reset the SMC for a good 2 minutes. Then insert the new battery connect your keyboard and mouse and then lastly your power cord. But don’t turn it on quite yet!
We still need to reset the PRAM settings! Press these four keys together: '''Option, Command, P,''' & '''R''' keys as soon as you’ve press the power button to start the system.
At this point your system should no longer have the beep tone.
=== Fixing the '''Prohibitory Symbol''' ===
Hopefully all we need to do here is fix the Startup disk setting. So shut down your system and this time restart it pressing the '''Option (⌥)''' key this will allow us to gain access to the Startup manager so you can select your boot drive [https://support.apple.com/en-us/HT202796|How to select a different startup disk]. If the drive fails to show up then you’ll need to replace it and install a fresh copy of your OS. Let us know if that’s the case so we can dive into what you need to watch out for, while not hard there are a few things you’ll need to figure out before you start.
=== References: ===
[https://support.apple.com/en-us/HT202768|About Mac startup tones]
[https://support.apple.com/en-us/HT204156|If your Mac doesn't start up all the way]
[https://support.apple.com/en-us/HT201295|How to reset the SMC of your Mac]
[https://support.apple.com/en-us/HT204063|Reset NVRAM or PRAM on your Mac]
[https://support.apple.com/en-au/HT204323|If your Mac starts up to a question mark]
The beep code '''One tone, repeating every five seconds''' can also mislead in older systems! We need to fix this first before we tackle the circle with a line through it - '''Prohibitory symbol'''
-
I have found a dead PRAM battery can also cause this. Remember you unplugged your system from power so for awhile the system sat with no power connection! What people forget is the iMac uses vampire power stealing a small amount of power from the power cord to hold the settings, that way it’s not fully dependent on the lithium Ion battery.
+
I have found a dead PRAM battery can also cause this. Remember you unplugged your system from power, so for awhile the system sat with no power connection! What people forget is the iMac uses vampire power stealing a small amount of power from the power cord to hold the settings, that way it’s not fully dependent on the lithium Ion battery.
You’ll need to replace the PRAM battery CR2032 3V lithium Ion Button cell.
Follow this guide to get to it: [guide|8963]
[image|2145567]
You do want to zero its settings before you put the fresh battery in. With the old battery removed, with the power cord still removed, press and hold the power button to reset the SMC for a good 2 minutes. Then insert the new battery connect your keyboard and mouse and then lastly your power cord. But don’t turn it on quite yet!
We still need to reset the PRAM settings! Press these four keys together: '''Option, Command, P,''' & '''R''' keys as soon as you’ve press the power button to start the system.
At this point your system should no longer have the beep tone.
=== Fixing the '''Prohibitory Symbol''' ===
-
Hopefully all we need to do here is fix the Startup disk setting. So shut down your system and this time restart it pressing the '''Option (⌥)''' key this will allow us to gain access to the Startup manager so you can select your boot drive [https://support.apple.com/en-us/HT202796|How to select a different startup disk]. If the drive fails to show up then you’ll need to replace it and install a fresh copy of your OS. Let us know if that’s the case so we can dive into what you need to watch out for, while not hard there are a few things you’ll need to figure out before you start.
=== References: ===
-
[https://support.apple.com/en-us/HT202768|About Mac startup tones]
[https://support.apple.com/en-us/HT204156|If your Mac doesn't start up all the way]
[https://support.apple.com/en-us/HT201295|How to reset the SMC of your Mac]
[https://support.apple.com/en-us/HT204063|Reset NVRAM or PRAM on your Mac]
[https://support.apple.com/en-au/HT204323|If your Mac starts up to a question mark]
=== Fixing the Beep Error ===
The beep code '''One tone, repeating every five seconds''' can also mislead in older systems! We need to fix this first before we tackle the circle with a line through it - '''Prohibitory symbol'''
I have found a dead PRAM battery can also cause this. Remember you unplugged your system from power so for awhile the system sat with no power connection! What people forget is the iMac uses vampire power stealing a small amount of power from the power cord to hold the settings, that way it’s not fully dependent on the lithium Ion battery.
You’ll need to replace the PRAM battery CR2032 3V lithium Ion Button cell.
Follow this guide to get to it: [guide|8963]
[image|2145567]
You do want to zero its settings before you put the fresh battery in. With the old battery removed, with the power cord still removed, press and hold the power button to reset the SMC for a good 2 minutes. Then insert the new battery connect your keyboard and mouse and then lastly your power cord. But don’t turn it on quite yet!
We still need to reset the PRAM settings! Press these four keys together: '''Option, Command, P,''' & '''R''' keys as soon as you’ve press the power button to start the system.
At this point your system should no longer have the beep tone.
=== Fixing the '''Prohibitory Symbol''' ===
Hopefully all we need to do here is fix the Startup disk setting. So shut down your system and this time restart it pressing the '''Option (⌥)''' key this will allow us to gain access to the Startup manager so you can select your boot drive [https://support.apple.com/en-us/HT202796|How to select a different startup disk]. If the drive fails to show up then you’ll need to replace it and install a fresh copy of your OS. Let us know if that’s the case so we can dive into what you need to watch out for, while not hard there are a few things you’ll need to figure out before you start.
=== References: ===
[https://support.apple.com/en-us/HT202768|About Mac startup tones]
[https://support.apple.com/en-us/HT204156|If your Mac doesn't start up all the way]
[https://support.apple.com/en-us/HT201295|How to reset the SMC of your Mac]
[https://support.apple.com/en-us/HT204063|Reset NVRAM or PRAM on your Mac]
[https://support.apple.com/en-au/HT204323|If your Mac starts up to a question mark]