Uploaded August 2011 | Updated September 2026, 2 weeks ago
Video shows a Macintosh SE/30 with a recapped logic board. Old leaky electrolytic capacitors were carefully removed, the board cleaned, and new tantalum caps soldered in. This is the second motherboard I've come across where recapping didn't solve Simasimac (horizontal lines at cold boot). I cleaned the board a second time with alcohol, but to no avail.
▶ UPDATE! I ultimately shipping my board off to a knowledgable associate in the 68kMLA forums, TechKnight, who kindly repaired the problem. He replaced the BOURNS filter at RP2, and he found PCB trace leading from the RP1 chip to the closest RAM socket and soldered a wire to repair it. You can see the repaired motherboard in this photo:
dropbox.com/s/4d9d630b6hie03v/SE30_MB_TantalumRecap_TOP.jpg?dl=0
Video shows a Macintosh SE/30 with a recapped logic board. Old leaky electrolytic capacitors were carefully removed, the board cleaned, and new tantalum caps soldered in. This is the second motherboard I've come across where recapping didn't solve Simasimac (horizontal lines at cold boot). I cleaned the board a second time with alcohol, but to no avail.
▶ UPDATE! I ultimately shipping my board off to a knowledgable associate in the 68kMLA forums, TechKnight, who kindly repaired the problem. He replaced the BOURNS filter at RP2, and he found PCB trace leading from the RP1 chip to the closest RAM socket and soldered a wire to repair it. You can see the repaired motherboard in this photo:
dropbox.com/s/4d9d630b6hie03v/SE30_MB_TantalumRecap_TOP.jpg?dl=0
![AMD 6970M Repasting & PROBLEM in 2009 iMac 27 [Video Card]](https://i.ytimg.com/vi/n2a8oEI2y6U/mqdefault.jpg "AMD 6970M Repasting & PROBLEM in 2009 iMac 27 [Video Card]
I explain a Radeon 6970M video card compatibility problem used in a late 2009 27 iMac. Repasting helps but doesnt completely solve the sudden power-down problem. (Sorry about the background noise, but thats Japan for you!)
🏥 PROBLEM: The 6970M causes the iMac to suddenly power-off when the video card gets too hot, unlike the stock 4850 video card which would never kill power to the Mac. Before repasting, the iMac would shut-off at around 52°C or 61°C, depending on the software running. After repasting (with Thermal Grizzly Kryonaut on the GPU and K5 Pro on the memory chips), the GPU Heatsink temperature at which the shutdown would occur became 77°C. This is still a problem though because the iMac shouldnt suddenly shutoff at all. I therefore cannot recommend the 6970M in 2009 or 2010 iMacs. I will retain mine though for further testing and to at least be able to use my iMac.
🎥 My previous video on the 6970M: https://youtu.be/9dPsH1zIQMs
👕 Apple T-Shirt worn in this video is a shirt Ive had since my college days, acquired sometime around 1990. Heres a photo showing the back side too: https://cl.ly/95c617
💳 EBAY listing of the 6970M I purchased:
https://www.ebay.com/itm/163991633495
🍎 Apple Forum Discussion about replacement video cards that work in the late 2009 27 iMac: https://discussions.apple.com/thread/3029120
♨️ If your 2008~2011 iMacs video card is dead and youve never baked it before, I suggest you perform the bake before spending the money on a replacement video card. My BAKE VIDEOS are here: https://bit.ly/2UEOf4o
🔥 THERMAL PASTES I strongly recommend:
K4 & K5 Pro Kit: https://amzn.to/38WkEZO
-or-
K5 Pro (for chips other than GPU): https://amzn.to/33OIDJ6
& Thermal Grizzly Kryonaut (for GPU only): https://amzn.to/36NMQwu
😎 Fan Control & Temperature Viewer Apps to keep your iMac running cooler I can vouch for all of these:
• Macs Fan Control: https://crystalidea.com/macs-fan-control
• smcFanControl: https://www.eidac.de
• iStat Menus: https://bjango.com/mac/istatmenus/
🛠 TOOLS to open/close iMac:
• 2 strong suction cups for front glass removal: https://amzn.to/2tkcmvJ
• Torx T10 for LCD removal (T9 works but T10 is best) & T9 for video card removal. The following kit contains more than needed for the iMac, but its highly rated, has grippy handles and magnetic tips, and no 1 month+ wait from China: https://amzn.to/2UCaurK
-or-
Alternative kit, WRENCH style (cheaper): https://amzn.to/2wIgWWe
-or-
Alternative kit, BIT style (youll need a handle): https://amzn.to/2vRkUeC
🔦 OTHER ITEMS needed or recommended:
• Anti-static wrist strap (connect wire to earth ground): https://amzn.to/2uSTy74
• Dust blower - Giottos Rocket Blaster Large: https://amzn.to/2OgHHXt
• Microfiber cloth (for cleaning the screen/glass)
• Flashlight (to peer into the dark spaces inside the iMac)
► I used a Samsung EVO 850 1TB SSD to replace the stock Apple hard drive, but the 860 EVO or Crucial MX500 are equivalent. To use an SSD in late 2009 27 iMac, youll also need a special mounting bracket and a separate temperature sensor:
• Bracket: https://amzn.to/37Zn4qg
• Sensor for 2009-2010 iMacs: https://amzn.to/3b3knWU
• EVO 860 (1TB): https://amzn.to/2RKem9M
-or-
• Crucial MX500 (2TB): https://amzn.to/3bxHybf
💵 NOTE: Your price on Amazon (US only) is the same even if you dont click the amzn.to Affiliate links above, but if you do kindly click and purchase within 24 hours, Amazon may pay me a small commission on all qualifying items in your Cart (even items not linked above).
💰SUPPORT THIS CHANNEL
If you wish to buy me a drink or otherwise support my content creation: https://www.paypal.me/supportJDW
🙏 My sincere thanks to the following Paypal subscribers since the end of March 2020 to present:
• Cesar Cedraro
• Owen Roberts
• James Hart
• Jim Mihori
Jim Mihori is a ukulele instructor, musician, and treasurer of a nonprofit Hawaiian cultural school in Arlington, VA called Halau O Aulani. Their mission over the last 24 years has been to perpetuate Hawaiian culture by teaching and performing hula, music, and chants. To participate, donate and learn more, please visit their website here:
https://halauoaulani.org/
📺 Please SUBSCRIBE:
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#Apple #Macintosh #iMac #VideoCard #JDW")
![Recapping an MMI 10MB Hard Drive [Part 1 of 3]](https://i.ytimg.com/vi/okWqwhMlvK0/mqdefault.jpg "Recapping an MMI 10MB Hard Drive [Part 1 of 3]
In Part 1 of this series, see me change the electrolytic capacitors on a vintage 1985 10MB Microcomputer Memories Inc. M112 hard disk drive. Tell me in the comments if you know which Apple Macintosh computers this HDD was used in!
🎬 Part 2 (PSU Recap): https://youtu.be/19n_qTfP7Vw
🎬 Part 3 (GCC HyperDrive): https://youtu.be/9c2eMR5h_NI
🔍 INDEX
0:00 Intro
4:59 Drive Overview
9:14 Disassembly
11:49 Recapping
25:07 Reassembly
27:49 Power-up Test
28:56 Closing Words
🛠️ THINGS TO BUY:
• Electrolytic Capacitors (6pcs total): https://bit.ly/3rlppFB
💁♂️I suggest you also order capacitors for other projects to possibly qualify for free shipping.
• Phillips Screwdriver (+) to remove circuit board.
• Cotton Swabs, for cleaning off flux with alcohol.
• 99% ISO Alcohol (Spray Bottle!): https://amzn.to/3ae4fG6
• 99% ISO Alcohol: https://amzn.to/3NoFkxN
• 99% ISO Alcohol: https://amzn.to/2YsK8v3
💁♂️I gave you 3 alcohol choices above because its often out of stock. 70% will work, 91% is better, but 99% is best for electronics cleaning (fast drying & no residue).
• Anti-static pad with Wrist Strap (16x24 / 41x61cm): https://amzn.to/3bfAE9Z
or
• Hi-temp Anti-static pad with Wrist Strap (16x12 / 41x30cm): https://amzn.to/2SOm1nK
• Wall socket Ground adapter for banana-jack Wrist Strap: https://amzn.to/2Yvq5ge
• Needle Nose Pliers: https://amzn.to/2U9Kc0M
• Wire Nippers 4.5: https://amzn.to/2J4Wkdk
• Soldering iron with °F-only LCD & Solder Kit (80W, cheap!): https://amzn.to/36BYi0K
or
• Soldering Station (120W, ESD safe very similar to my Hakko 937): https://amzn.to/30g1Frt
or
• HAKKO (Japanese) Soldering Station (70W but with ceramic core): https://amzn.to/2YvIo42
• Solder (Leaded Rosin Core 1.6mm): https://amzn.to/3IGuxxm
• Solder (Leaded Rosin Core 0.82mm): https://amzn.to/3GzJbVl
• MG Chemicals FLUX: https://amzn.to/3kuAcsZ
• Desoldering wick: https://amzn.to/3iMAnA5
• UV Solder Mask (covers exposed PCB traces): https://amzn.to/3hogoaE
💁♂️Set soldering iron temperature to 350°C normally. Dont use lead-free solder.
• DE-5000 Handheld LCR Meter: https://amzn.to/2ScttJz
💁♂️The best handheld meter to check capacitor ESR, capacitance, etc. Includes all 3 accessories: TL-21, TL-22 & TL-23.
💵 NOTE: Your price on Amazon (US only) is the same even if you dont click the amzn.to Affiliate links above, but if you do kindly click and purchase within 24 hours, Amazon may pay me a small commission on all qualifying items in your Cart (even items not linked above).
📚 MMI HISTORICAL REFERENCE
• Drive Spec Manual at Computer History Museum (CHM): https://bit.ly/3tp3fUO
• MMI Ad showing specs like ST-412 Interface (search the PDF for MMI): https://bit.ly/3rgDVy9
• Drive Specs on TheRef (archived): https://bit.ly/2MOfOYK
• MMI Incorporation Documents (click links under Recent filings... ): https://bit.ly/3oQPquR
• Financial condition, company move in Aug. 1985: https://lat.ms/39FAStm
• Dec.1984 Product Announcement (search PDF for microcomputer): https://bit.ly/3cBt0eA
• MMI portable HDD ad: https://bit.ly/3odv7qY
• Hard Drive Bible: see pp.168-169 on slider: https://bit.ly/3cBzD08
• MFM HDD Replacement #1 (requires BeagleBone Green): https://www.pdp8.net/mfm/mfm.shtml
• MFM HDD Replacement #2 (more expensive than #1): https://www.drem.info/tech-info
📚 15-YEAR SERVICE LIFE FOR ELECTROLYTIC CAPACITORS
• Nichicon Life Calculator (15 years max!): https://bit.ly/3axtZJQ
• Rubycon (search for 15): https://bit.ly/2NQjh9F
• Elna (search for fifteen): https://bit.ly/3jaE6bs
• Nippon Chemi-Con (search for 15 years): https://bit.ly/3pIwG1z
⬇️ I dumped the drives EPROM using a T48 Programmer in May 2024: https://tinyurl.com/3vb39fjv
🎦 How to Choose Capacitors for Recapping: https://youtu.be/6PKaj9-1xIs
🙏 HUMBLE & SINCERE THANKS to Stephen in San Francisco for his extremely generous contribution by Paypal in Jan. 2021. Be sure to check out his 3D printable vintage Mac parts on MakerBot Thingiverse. Get them from Shapeways if you dont have your own 3D printer.
https://www.thingiverse.com/stephenlulz/designs
💰SUPPORT THIS CHANNEL
https://www.paypal.me/supportJDW
📺 SUBSCRIBE:
http://www.youtube.com/c/JDW11/?sub_confirmation=1
#harddisk #hdd #retro #JDW")
![Speaker Replacement: mid-2015 MacBook Pro 15 A1398 [Revised]](https://i.ytimg.com/vi/pBaNHAKfW04/mqdefault.jpg "Speaker Replacement: mid-2015 MacBook Pro 15 A1398 [Revised]
4K video shows crackling speaker problem, 15 MBP Retina (11,5) teardown, left & right speakers replaced, reassembly, and speaker testing. This Mac is my daily driver, used to edit and render my YouTube videos. I wish you all a very Happy New Year in 2022!
✔️ This is an improved version of my original video. The tiny ribbon cable I accidentally neglected to mention in my original video is now clearly mentioned. Original video: https://youtu.be/zGzx1d1sfmM
🔎 INDEX
0:00 — Crackling LEFT Speaker
1:19 — Pricing & Genuine Apple Parts
4:22 — Teardown
16:27 — Speaker Replacement & Reassembly
25:58 — Testing
27:58 — Closing Thoughts
🛠️ THINGS TO BUY
• Apple Genuine Service Parts BOTH SPEAKERS from EBAY tecknic-lee: https://bit.ly/40WlbHI
(Sadly, unavailable for the 2015 MBP 15 as of February 2025)
• Screwdriver Set: https://amzn.to/3eC4hX2
• Plastic Tweezer Set: https://amzn.to/3HpzKbh
• Rocket Blower: https://amzn.to/31854vM
ALTERNATIVE SPEAKERS...
• Both Speakers (NOT Genuine Apple!): https://amzn.to/3EFrker
• iFixit LEFT Speaker (USED! Not Genuine Apple?): https://bit.ly/3qxPSAQ
• iFixit RIGHT Speaker (USED! Not Genuine Apple?): https://bit.ly/3sFLW3K
• Grounding Wrist Strap, Silicone Pad & Wall Socket Adapter: https://amzn.to/4dOZ8sd
• Sony D100 Recorder: Sadly discontinued in March 2021, it can still be found on EBAY and ranks among the best compact handheld field recorders money can buy. Similar grade alternatives:
• Tascam DR-100MKIII: https://amzn.to/3ENeriv
• Sony D10: https://amzn.to/3eFJj9J
💵 NOTE: Your price on Amazon (USA only) is the same even if you dont click the amzn.to Affiliate links above, but if you do kindly click and purchase within 24 hours, Amazon may pay me a small commission on all qualifying items in your Cart (even items not linked above).
🔴 UPDATE on Right Speaker DEFECT 🔴
My dealings with technic-lee show them to be an honest and friendly EBAY vendor who I highly recommend. These courteous folks responded promptly and very professionally to my mention of the Right speaker crackle defect. They resolved the speaker issue to my complete satisfaction. It was definitely my best transaction experience on EBAY to date. Regarding the Apple logos missing on the Service Parts, they offered this helpful information:
We wish Apple would put logos on their service parts but unfortunately they don’t. It would definitely help with consumers wanting to repair their own machines. We can only guess it’s because the parts are internal and only meant for authorized service providers to install. However, that may change soon as Apple has announced their Self Service Repair where they will start selling their parts directly to consumers.
The number on the box is the Apple part number. The part is made in a factory in China. Not sure if it’s Foxcon, where they produce the iPhone, or Flex, in Singapore, or some other factory. They are pretty tight-lipped about it and since they ship the parts from their warehouses in United States, we see no addresses or information to give us any clues. We aren’t even sure if the parts come in similar packaging in other countries. All the parts come in the same plain brown boxes or envelopes, with the Apple part number label and green tape.
📚 REFERENCE
• PHOTO I printed on paper to remember screw locations: https://bit.ly/3pFF733
• MUSIC used in this video is MydNyte from the YouTube Audio Library:
https://www.youtube.com/audiolibrary
• iFixit LEFT Speaker GUIDE: https://bit.ly/3sJIDsj
• iFixit RIGHT Speaker GUIDE: https://bit.ly/3mJU7YZ
• $300 Apple Speaker Repair price mentioned here: https://bit.ly/3qxvfF6
🙏 SPECIAL THANKS TO:
• Stephen Arsenault (BetterBit), who kindly sent me the cute little Happy Mac PCB pin which affixes by a strong magnet. If you like it, be sure to click Star (upper right corner) on the project page, which also talks about ordering (its a PCB): https://github.com/Stephen-Arsenault/happy-mac
🎥 My related 2015 15 MBP videos:
• CPU Repasting: https://youtu.be/_XQNGNAwrLw
• Swollen Batteries: https://youtu.be/Om1c-FCc5u0
💰SUPPORT THIS CHANNEL
• Paypal: https://www.paypal.me/supportJDW
📺 SUBSCRIBE
http://www.youtube.com/c/JDW11/?sub_confirmation=1
#MacBookPro #Speakers #Repair #JDW")
![Apple Hard Disk 20 (HD20) Recapping [Part 1 of 2]](https://i.ytimg.com/vi/pa4y1jRSdew/mqdefault.jpg "Apple Hard Disk 20 (HD20) Recapping [Part 1 of 2]
Watch me take apart and recap the RODIME 552 hard drive in an Apple HD20 drive enclosure using my new HAKKO FR-301 desoldering gun. I also replace the stock ELINA fan for a quiet Noctua. Watch Part-2 here: https://youtu.be/ve5PlBCBHfQ
🔎 INDEX
0:00 — Intro
0:56 — Take Apart
3:31 — FloppyEMU & Tash20
6:02 — Capacitor & Screw Locations
7:39 — Hakko FR-301 Overview
11:38 — Desoldering Old Capacitors
15:57 — Installing New Capacitors
21:14 — Pondering Lubrication
24:08 — Reassembly
25:38 — Noctua Fan
27:30 — Boot Test
29:09 — Closing Thoughts
🛒 BUY
• CAPACITORS, Mouser Cart (Rodime Drive only): https://bit.ly/45lCimt
• Noctua Fan (NF-A6x25): https://amzn.to/3LWl8VS
• Hakko FR-301 (Amazon USA): https://amzn.to/3tfgziR
I purchased this one on Amazon Japan: https://amzn.to/3tuQeO0
• Hakko Soldering Station (FX888DX): https://amzn.to/4kEttgq
or
• Hakko Soldering Station FX951: https://amzn.to/3DzeaoJ
• MG Chemicals Flux: https://amzn.to/3kuAcsZ
• Generic Solder 100g (60-40 Leaded Rosin Core 0.6mm, 2% flux): https://amzn.to/3FDRscn
• Kester Solder 454g (60-40 Leaded Rosin Core 0.8mm, 3.3% flux): https://amzn.to/3tLFwT9
• 2-spool Solder Holder: https://amzn.to/39hIMbt
• Hakko 599B Tip Cleaner: https://amzn.to/3RHy5o4
• HAKKO Fume Extractor: https://amzn.to/3MApWyb
• 99% ISO Alcohol (Spray Bottle!): https://amzn.to/3ae4fG6
• 99% ISO Alcohol: https://amzn.to/3R5TRCk
💁♂️2 alcohol choices because its often out of stock. 70% will work, 91% is better, but 99% is best for electronics cleaning (fast drying & no residue).
• FloppyEMU: https://bit.ly/2BA8yru
• Tash20 Budget Model: https://ko-fi.com/s/77f53b293e
• Tash20 Tiny External: https://ko-fi.com/s/2bfee029f5
• The New Apple II Users Guide: https://amzn.to/3tvuth0
• DE-5000 Handheld LCR Meter (Amazon US): https://amzn.to/2ScttJz
NOTE: Links to Amazon USA in this text description are affiliate links that may generate small revenue for this channel if something is purchased within 24 hours of clicking the link.
📚 REFERENCE
• Rodime Drive Capacitors: https://bit.ly/3ZOkuiF
• MacGUI, HD20 Article: https://bit.ly/46qiTlK
• Macworld Review of HD20: https://bit.ly/3PNCiG8
• MacGUI, HD20 SCSI Controller (HD-20 WSI): https://bit.ly/46liNvz
• Macworld Review of HD-20 WSI SCSI Controller: https://bit.ly/46lip05
• MacGUI, SCSI for the Mac 512K: https://bit.ly/3Qa5atH
• MacGUI, Lubricating the Rodime 552: https://macgui.com/news/article.php?t=445
⚠️ NOTE: You must be LOGGED IN to see the full article. Sorry. Its his rule, not mine.
• The New Apple II Users Guide: https://macgui.com/newa2guide/
• HD20 Teardown: https://oldcrap.org/2019/06/21/macintosh-hard-disk-20/
💾 SOFTWARE
• HD20-related downloads: http://bitsavers.org/pdf/apple/disk/hd20/
• HD20 Boot Floppy (for Mac512K with 64K ROMs): https://bit.ly/45ryUX8
🙏 THANK YOU, Paypal supporters!
• Frank Conforti 🇺🇸 (monumental supporter)
• Philippe Astier 🇫🇷 (monthly supporter)
• Mauro Acciaccaferri 🇮🇹 (monthly supporter)
• Gavin Maxwell 🇦🇺 (monthly supporter)
• Mark B. Newlon 🇺🇸 (repeat supporter)
• Brian Gorham 🇺🇸 (new supporter)
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💰SUPPORT ME
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🎬 MY VIDEOS
https://www.youtube.com/user/JDW26/videos
#AppleHD20 #Recapping #HakkoFR301 #JDW1")
