Upgraded PCM 3.1 Hard Drive to SSD
#526
5th Gear
Join Date: Sep 2023
Location: Scottsdale, Arizona
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I recently changed from a HDD to a SSD in the PCM 3.1 (ver 3.40) of my 2012 991 Carrera S. At the same time, I added the NM Automotive CarPlay kit and a backup camera. The PCM wasn't having any problems, but I just wanted to be proactive.
I was prepared for a SATA conversion (Samsung SATA drive and WEme disk cloner), but when I opened up my PCM, it had the Toshiba 40GB IDE HDD. I then ordered the following from Amazon: KingSpec 128GB 2.5 inch PATA/IDE SSD (KingSpec was the only IDE SSD I found on Amazon and I ordered the 128GB version because it had one day delivery) and two AGPTEK SATA/PATA/IDE Drive to USB 2.0 Adapter Converter Cables.
I ran Clonezilla from a USB drive (Clonezilla's website described how to make a bootable USB drive) in 'Beginner Mode'. Here is a good tutorial that walked me through using Clonezilla for the first time -
. The cloning had no issues and I put the SSD in the PMC and reconnected power. Everything worked! I did remove the master/slave jumper from connector on the SSD since the PCM connector uses these pins.
It does seem like these IDE SSDs are getting rare.
I was prepared for a SATA conversion (Samsung SATA drive and WEme disk cloner), but when I opened up my PCM, it had the Toshiba 40GB IDE HDD. I then ordered the following from Amazon: KingSpec 128GB 2.5 inch PATA/IDE SSD (KingSpec was the only IDE SSD I found on Amazon and I ordered the 128GB version because it had one day delivery) and two AGPTEK SATA/PATA/IDE Drive to USB 2.0 Adapter Converter Cables.
I ran Clonezilla from a USB drive (Clonezilla's website described how to make a bootable USB drive) in 'Beginner Mode'. Here is a good tutorial that walked me through using Clonezilla for the first time -
It does seem like these IDE SSDs are getting rare.
#527
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Yes they got phased out in June 2013 as far as I know..
I will do an IDE repair/preventative upgrade for free (or at cost) to someone who has an IDE drive. Otherwise SATA drives are freshly restocked, anyone having the reboot issue can PM me for a freshly written SATA SSD.
Close to 100 pcm’s fixed with my repair kits![Smilie](https://rennlist.com/forums/images/smilies/smile.gif)
I will do an IDE repair/preventative upgrade for free (or at cost) to someone who has an IDE drive. Otherwise SATA drives are freshly restocked, anyone having the reboot issue can PM me for a freshly written SATA SSD.
Close to 100 pcm’s fixed with my repair kits
![Smilie](https://rennlist.com/forums/images/smilies/smile.gif)
#529
Rennlist Member
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Does the hard drive have any potential to causing battery drain? My 2015 cayenne was just in for a diagnosis of a check engine light and they said my battery was drained by the PCM and suggested they unplug it to not leave me stranded while I wait for parts on a completely separate non battery draining issue. They said it was hard drive related, that the hard drive wasn’t turning off and causing battery drain and it’s either purchase a new PCM or fix the hard drive. I installed a mr12volt if this makes any difference.
I remembered this thread but will also call Porsche tomorrow to get more info on this issue I’m having with battery drain. Curious if anyone has had something similar to this issue. Nonetheless swapping to SSD seems like a better overall plan so I’ll probably reach one to ozzy sooner than later or look into cloning my existing hdd. Porsche navigation worked last no issues, but it’s useless for me using CarPlay
I remembered this thread but will also call Porsche tomorrow to get more info on this issue I’m having with battery drain. Curious if anyone has had something similar to this issue. Nonetheless swapping to SSD seems like a better overall plan so I’ll probably reach one to ozzy sooner than later or look into cloning my existing hdd. Porsche navigation worked last no issues, but it’s useless for me using CarPlay
#530
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It does not unless you made a major modification. The whole PCM system gets powered off 30 minutes after the doors are locked.
That being said you do kinda have a major mod. Where does the mr12volt get its power?
That being said you do kinda have a major mod. Where does the mr12volt get its power?
Last edited by ozzythething; 09-05-2023 at 11:39 AM.
#531
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#532
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If without a drive your unit works but loses functionality, you can get a SSD kit from me to restore functionality.
If without a drive it still reboots, that PCM is likely toast…
also, before your HDD dies, I recommend getting an SSD upgrade as a preventative maintenance. Some of these drives are now 10+ years old and it’s not a question of if, it’s when.
#533
Rennlist Member
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I'll also inquire on the mr12volt thread but it's possible that they didn't lock the car since it was in the workshop bay and maybe the PCM never turned off...
#534
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It’s a 2.5” laptop style SATA drive that runs on 5V and draws 1.6 Amps. That’s like 8 watts of power consumption. Even if you shorted a 8 watt load straight on the battery, it shouldn’t even make a dent considering how big the battery is in comparison.. right?
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ElCid86 (09-09-2023)
#536
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I ended up shipping my PCM to Albania and received it back today and it was fixed. Thanks to @ElCid86 and @ozzythething for trying to help me. Now just trying to get the wires all the way back so I can install the PCM.
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ElCid86 (09-09-2023)
#537
Race Car
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I ended up shipping my PCM to Albania and received it back today and it was fixed. Thanks to @ElCid86 and @ozzythething for trying to help me. Now just trying to get the wires all the way back so I can install the PCM.
#538
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@ElCid86 was kind enough to clone a new SSD for me, after replacing it with the old one it still rebooted every 10 seconds. It only got as far as the Porsche logo. I couldn't even update to the latest firmware either. Local dealership wanted $4k and I got Porsche NA involved but they gave me only 50% for goodwill. Shop in Albania fixed everything with shipping for $700 and it took about 2 weeks.
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ElCid86 (09-09-2023)
#539
Race Car
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@ElCid86 was kind enough to clone a new SSD for me, after replacing it with the old one it still rebooted every 10 seconds. It only got as far as the Porsche logo. I couldn't even update to the latest firmware either. Local dealership wanted $4k and I got Porsche NA involved but they gave me only 50% for goodwill. Shop in Albania fixed everything with shipping for $700 and it took about 2 weeks.
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ElCid86 (09-09-2023)
#540
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this is 100% the way
If without a drive your unit works but loses functionality, you can get a SSD kit from me to restore functionality.
If without a drive it still reboots, that PCM is likely toast…
also, before your HDD dies, I recommend getting an SSD upgrade as a preventative maintenance. Some of these drives are now 10+ years old and it’s not a question of if, it’s when.
If without a drive your unit works but loses functionality, you can get a SSD kit from me to restore functionality.
If without a drive it still reboots, that PCM is likely toast…
also, before your HDD dies, I recommend getting an SSD upgrade as a preventative maintenance. Some of these drives are now 10+ years old and it’s not a question of if, it’s when.