20 Best Ibook G4 Charger [2024]

Are you looking for the best ibook g4 charger? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling ibook g4 charger.

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1 65W 24.5V 2.65A Replacement Ac Laptop Adapter Charger for Apple Powerbook iBookG4, iBook,G4... 65W 24.5V 2.65A Replacement Ac Laptop Adapter Charger for Apple Powerbook iBookG4, iBook,G4...
2 New 65W 24.5V 2.65A Replacement Ac Adapter Laptop Charger Compatible with Apple Powerbook iBookG4,... New 65W 24.5V 2.65A Replacement Ac Adapter Laptop Charger Compatible with Apple Powerbook...
3 65W 2.65A 24.5V AC Power Adapter Charger for PowerBook G4 A1021,iBook G4, PowerBook G4 15.2-inch... 65W 2.65A 24.5V AC Power Adapter Charger for PowerBook G4 A1021,iBook G4, PowerBook G4 15.2-inch...
4 YTech 65w AC Adapter Charger Power for Apple Powerbook Book/iBook G3/G4 15 inch 17 inch A1021 M4328... YTech 65w AC Adapter Charger Power for Apple Powerbook Book/iBook G3/G4 15 inch 17 inch A1021...
5 Replacement A1036 M8482 Laptop AC Adapter / Notebook Charger / Power Supply Cord for Apple MAC iBook... Replacement A1036 M8482 Laptop AC Adapter / Notebook Charger / Power Supply Cord for Apple MAC...
6 LGM AC Adapter for 12' 15' 14' 17 G4 PowerBook iBook Charger Power Supply Cord New LGM AC Adapter for 12" 15" 14" 17 G4 PowerBook iBook Charger Power Supply Cord New
7 UpBright® New AC/DC Adapter for Apple Mac iBook 700 800 900 PowerBook G4 A1104 Mac A1106 A1005... UpBright® New AC/DC Adapter for Apple Mac iBook 700 800 900 PowerBook G4 A1104 Mac A1106 A1005...
8 NextCell AC Adapter Charger Power Supply Cord for Apple iBook G4 12 inch M9846LL/A A1133 PowerBook... NextCell AC Adapter Charger Power Supply Cord for Apple iBook G4 12 inch M9846LL/A A1133...
9 Durpower 65W AC Adapter Cord Charger Replacement for Apple Powerbook iBook G4 A1021 A1005 M8483... Durpower 65W AC Adapter Cord Charger Replacement for Apple Powerbook iBook G4 A1021 A1005 M8483...
10 EBKK 65W Laptop Charger for HP EliteBook 820 830 840 850 G6 G3 G4 G5 G7 G8 / 725 745 755 G3 G4 G5 G6... EBKK 65W Laptop Charger for HP EliteBook 820 830 840 850 G6 G3 G4 G5 G7 G8 / 725 745 755 G3 G4 G5...
11 Universal Adapter, Compatible with MacBook Air Charger 45W T-tip Charger, Replacement Charger for... Universal Adapter, Compatible with MacBook Air Charger 45W T-tip Charger, Replacement Charger for...
12 AC Charger for HP OMEN x by 15 17 ZBook Studio 15 G3 G4 G5 G6 ADP-150XB B 776620-001 917677-003... AC Charger for HP OMEN x by 15 17 ZBook Studio 15 G3 G4 G5 G6 ADP-150XB B 776620-001 917677-003...
13 PowerSource 19.5V 65W 45W UL Listed 14Ft Long HP Smart Blue Tip AC Adapter for Many Models... PowerSource 19.5V 65W 45W UL Listed 14Ft Long HP Smart Blue Tip AC Adapter for Many Models...
14 Apple 85W MagSafe 2 Power Adapter (for MacBook Pro with Retina Display) Apple 85W MagSafe 2 Power Adapter (for MacBook Pro with Retina Display)
15 19.5V 7.7A 150W Charger AC Adapter Fit for HP ZBook Zbook 15 G3 G4 G5 G6 15V G6 753559-002... 19.5V 7.7A 150W Charger AC Adapter Fit for HP ZBook Zbook 15 G3 G4 G5 G6 15V G6 753559-002...
16 45W 19.5V 2.31A Ac Adapter Laptop Charger for HP Pavilion x360 Charger 15-f272wm 15-f387wm 15-f233wm... 45W 19.5V 2.31A Ac Adapter Laptop Charger for HP Pavilion x360 Charger 15-f272wm 15-f387wm...
17 Universal Charger, Replacement 45W Power Adapter Magnetic T-Tip Ac Charger for Mac Book Air 11-inch... Universal Charger, Replacement 45W Power Adapter Magnetic T-Tip Ac Charger for Mac Book Air...
18 19.5V 3.33A 65W AC Charger Replacement for HP Elitebook 840-G3 850-G3 820-G3 745-G3 725-G3 755-G3... 19.5V 3.33A 65W AC Charger Replacement for HP Elitebook 840-G3 850-G3 820-G3 745-G3 725-G3 755-G3...
19 DJW 19.5V 2.31A 45W Ac Adapter/Power Cord Supply for HP Pavilion 11 13 15;HP elitebook Folio 1040... DJW 19.5V 2.31A 45W Ac Adapter/Power Cord Supply for HP Pavilion 11 13 15;HP elitebook Folio 1040...
20 65W Adapter Laptop Charger for HP Chromebook 11 14 G3 G4 X360 Series Notebook Charger 11-v020wm... 65W Adapter Laptop Charger for HP Chromebook 11 14 G3 G4 X360 Series Notebook Charger 11-v020wm...
Bestseller No. 1
65W 24.5V 2.65A Replacement Ac Laptop Adapter Charger for Apple Powerbook iBookG4, iBook,G4...
  • DC-Output : 24.5V-2.65A-65W AC- Input : 100-240V 1.2A 50/60 Hz;
  • Connector Size: 7.7mm x 2.5mm
  • Compatible Part Number :Apple A1021, Apple A1021, Apple ACG4, Apple M7332(PBG4/iBook2USB), Apple m8243z/a, Apple M84457LL/A, Apple M8457LL/A, Apple...
  • Package: 1x AC adapter & 1x AC power cable
  • Our Service: 12 Months warranty, 30 Days Money Back Guarantee! 24 x 7 Email Support.
SaleBestseller No. 3
65W 2.65A 24.5V AC Power Adapter Charger for PowerBook G4 A1021,iBook G4, PowerBook G4 15.2-inch...
  • Input: AC 100-240V 50-60Hz Output:DC 24.5V 2.65A 65W
  • Inner diameter: 7.7mm*2.5mm
  • Fit laptop models :Apple PowerBook G4 1GHz 15.2-inch, Apple PowerBook G4 1GHz 12.1-inch FW800, Apple PowerBook G4 15.2-inch
  • Package: 1x Ac adapter & 1x Ac power cable
  • Features 100% Brand Replacement New adapter , with 1 year warranty(full refund in 3 months and free replacement in 12 months)
Bestseller No. 4
YTech 65w AC Adapter Charger Power for Apple Powerbook Book/iBook G3/G4 15 inch 17 inch A1021 M4328...
  • utput: 24.5V~2.65A~65W Input: 100~240V~1.2A 50/60Hz
  • Connecter size: 7.7mm/2.5mm
  • Package: 1x Ac adapter & 1x Ac power cable
  • Condition:100% OEM compatible, works as original part,12 months replacement warranty
Bestseller No. 5
Replacement A1036 M8482 Laptop AC Adapter / Notebook Charger / Power Supply Cord for Apple MAC iBook...
  • DC Output: 24V 1.875A 45W; AC Input: 100-240V ~ 1.6A 50/60Hz
  • DC Connecter size: Round Tip
  • OVP OCP SCP Protection (OVP: Over Voltage output Protection. OCP: Over Current output Protection. SCP: Short Circuit output Protection)
  • Package Includes: 1 x Kastar AC Adapter 1 x 3-Prong extended Power Cord
  • Compatible with: Apple iBook G4 45W Laptop AC Adapter. Compatible Part Number M8482, A1036, M8482LL/A, M8482LLA
Bestseller No. 6
LGM AC Adapter for 12" 15" 14" 17 G4 PowerBook iBook Charger Power Supply Cord New
  • 30 days money back guarantee. 1 full year service warranty.
  • 100% Brand New, High Quality AC Wall Power Charger (non-OEM)
  • Input: 100V-240V AC; great for replacemnt or travel back up
  • Build in Dynamic IC, Charger IC & Power fuse for rapid charging and over charge protection.
  • Tested Units. In Great Working Condition.
Bestseller No. 7
UpBright® New AC/DC Adapter for Apple Mac iBook 700 800 900 PowerBook G4 A1104 Mac A1106 A1005...
  • World Wide Input Voltage 100-240VAC 50/60Hz. OVP, OCP, SCP Protection (OVP: Over Voltage output Protection. OCP: Over Current output Protection. SCP:...
  • UpBright NEW Global AC / DC Adapter For Apple Mac iBook 700 800 900 PowerBook G4 A1104 Mac A1106 A1005 A1036 A1021 M9676LL/A M9677LL/A #503-23 A1085...
  • Fits Apple Mac iBook PowerBook G4 17-inch WideScreen M8793LL/A, M84457LL/A M8457LL/A M8457Z/A M84457LL/A M8457LL/A M8457Z/A M8592LL/A M9007LL/A...
  • Fits Apple A1021 M8457Z/A ACAPP-D56 M8482 M7332 m8243z/a M84457LL/A M8457LL/A M8576LL/A M8942LL/A M8943LL/A M9018LL/A M9009LL/A series Apple iBook 700...
  • Fits Apple Mac iBook PowerBook G4 Opaque 12" A1005 M9426LL/A A1055 A1133 A1095 M8407 A1036 M8483 A1021 ACG4 M8243 M4328 2002 2001 M6497 M7332 14.1"...
Bestseller No. 8
NextCell AC Adapter Charger Power Supply Cord for Apple iBook G4 12 inch M9846LL/A A1133 PowerBook...
  • Input: 100-240V (Worldwide); Output: 24V 2.65A; Power: 65W; Cable: Power cord included.
  • 100% compatible works as genuine parts, and guaranteed meets or exceeds the original manufacturer specifications.
  • This high quality battery comes with ONE Year Warranty and 30 Days Satisfaction Money Back Guarantee against defects in material or workmanship.
  • Produced by eco-friendly materials without lead or mercury. Certified by CE and RoHS industry quality standard.
  • Our knowledgeable and friendly customer support staffs are here to help you anytime. Excellent service and your 100% satisfaction is always our...
Bestseller No. 9
Durpower 65W AC Adapter Cord Charger Replacement for Apple Powerbook iBook G4 A1021 A1005 M8483...
  • Input: 100 - 240V, 50-60Hz;Output: 20V DC / 3.25A
  • Industry Quality : Over voltage protection, Over heat protection, CE
  • Brand New Adapter, 100% Compatible
  • Warranty:1 year warranty, 30 day money back guarantee
  • AC Power Adapter and US Type Power Cord
SaleBestseller No. 10
EBKK 65W Laptop Charger for HP EliteBook 820 830 840 850 G6 G3 G4 G5 G7 G8 / 725 745 755 G3 G4 G5 G6...
  • 【Product Type】Output: DC 19.5V~3.33A 65W; Input: AC 100-240V~1A(50-60Hz); Connector: 4.5mm x 3.0mm Blue Tip
  • 【Compatible types】Compatible for HP ProBook 820 830 840 850 G6 G3 G4 G5 G7 G8 / 645 650 655 G2 G3 G4 G5 G6 G7 / 450 430 440 446 455 470 G3 G4 G5...
  • 【Compatible P/N】740015-002 / 741727-001 / TPN-LA03 / 845611-001 / PA-1450-56HA / 845836-850 / A045R07DH / PA-1450-36HE / HSTNN-LA40 / 719309-003 /...
  • 【Multiple protection】Overload protection, short circuit protection, zero voltage and under voltage protection
  • 【After-Sale Warranty】We promise 30 days return, 1 year warranty, if you have any questions, we will try our best to provide you with the solution...
SaleBestseller No. 11
Universal Adapter, Compatible with MacBook Air Charger 45W T-tip Charger, Replacement Charger for...
  • Power value: 45W input: 100V-240V output: 14. 85V 3. 05A
  • Universal adapter, Fully compatible with notebook air (13-inch, 2017)notebook air (11-inch, early 2015) notebook air (13-inch, early 2015) notebook...
  • A T shape DC connector with LED status information, an amber light means your notebook is charging, while a green light means it full charge....
  • Stable and reliable: Our charger is made of high materials and has obtained UL, CE, ROHS standard certification. Reasonable power layout and line...
  • Satisfaction: our team of professionals is constantly working to make you happier. We provide technical support for customers 24/7. We are confident...
Bestseller No. 12
AC Charger for HP OMEN x by 15 17 ZBook Studio 15 G3 G4 G5 G6 ADP-150XB B 776620-001 917677-003...
  • 【A Second AC Adapter】At home and/or at work makes power access convenient and tailored to your needs. Also keep one in your carrying case at all...
  • 【Product Type】100 ~ 240V 50 ~ 60 Hz ,DC output : 19.5V ~ 7.7A 150W (150 Watt compatible with 120W 135W) Connector 4.5mm x 3.0mm
  • 【Compatible Laptop Models】Fit for HP ZBook 15 G3 G4 G5 G6,ZBook Studio G3 G4 G5 G6,HP ZBook 15u G3 G4,OMEN by HP Laptop 15,Pavilion 15-bc251nr...
  • 【Compatible P/N】917649-850,917677-003,917677-001,776620-001,775626-003,740243-001,645509-002,646212-001,ADP-150XB B, A150A05AL, HSTNN-CA27,...
  • 【Service 】We Offer an Industry-Leading Return and Exchange Policy,Within 30 Days of Purchase. 1 Year Warranty with Replacement,Wall plug...
SaleBestseller No. 13
PowerSource 19.5V 65W 45W UL Listed 14Ft Long HP Smart Blue Tip AC Adapter for Many Models...
  • POWER SPECS - Output Max: 19.5V 3.33A 65W (also compatible with 19.5V 2.30A 45W) Input Volt Range: 110-240V /(4.5mm blue tip) Original HP Laptop Power...
  • COMPATIBILITY - This product has been tested to ensure compatibility with the following and many more HP Smart Blue Tip Models 65W/45W: Elitebook 830...
  • SAFETY / UL LISTED - Underwriters Laboratories, the leading American consumer product testing laboratory, lists this PowerSource product as meeting...
  • PERFORMANCE, SAFETY, RELIABILITY - All of our product lines are put through rigorous quality control procedures to ensure safe, reliable operation for...
  • MONEY BACK GUARANTEE - As an American company, headquartered in Biloxi, MS, we are proud to stand behind our products as we greatly value repeat...
SaleBestseller No. 14
Apple 85W MagSafe 2 Power Adapter (for MacBook Pro with Retina Display)
  • The 85W MagSafe 2 Power Adapter features a magnetic DC connector so if someone should trip over it, the cord disconnects harmlessly and your MacBook...
  • When the connection is secure, an LED located at the head of the DC connector lights up; an amber light lets you know that your notebook is charging,...
  • Designed to be the perfect traveling companion, the adapter has a clever design which allows the DC cable to be wound neatly around itself for easy...
  • This power adapter recharges the lithium polymer battery while the system is off, on, or in sleep mode. It also powers the system if you choose to...
  • Compatible with MacBook Pro with Retina display (15-inch, 2012-2015).
Bestseller No. 15
19.5V 7.7A 150W Charger AC Adapter Fit for HP ZBook Zbook 15 G3 G4 G5 G6 15V G6 753559-002...
  • Compatible with HP ZBook 15 G3, 15 G4, 15 G5 , 15 G6, 15V G6 HP ZBook Studio G3, G4, G5 G6, L32661-001 TPN-CA11 TPN-DA09
  • AC input voltage : 100 ~ 240V 50 ~ 60 Hz ,DC output : 19.5V ~ 7.7A 150W
  • The product has passed various safety tests, please rest assured to buy
  • YOU CAN GET: 1x AC Charger, 1x Power Cord
  • HNHTKJ promises 60-day money-back service and one-year warranty
Bestseller No. 16
45W 19.5V 2.31A Ac Adapter Laptop Charger for HP Pavilion x360 Charger 15-f272wm 15-f387wm 15-f233wm...
  • Product Type :19.5V 2.31A 45Watt Input: AC 100-240V 50-60HZ.
  • Connector size: interior diameter: 3.0mm; external diameter: 4.5mm (Please make sure the charger adapter fit your laptop before you bid .)
  • This Adapter works with Hp Spectre x360 charger 15-n013dx 15-f305dx 15-f162dx 15-f009wm 15-f010wm 15-f024wm 15-f039wm Laptop Notebook PC Charger.
  • Compatible with : HP 15-r015dx 15-f008cl 15-p100dx 15-g013cl 15-d035dx 15-bs015dx 15-ba009dx 15-ay196nr 15-ay191ms 15-ay127cl 15-ay041wm 15-ay039wm...
  • Warranty: 12 Months warranty, 30 Days Money Back Guarantee.
Bestseller No. 17
Universal Charger, Replacement 45W Power Adapter Magnetic T-Tip Ac Charger for Mac Book Air 11-inch...
  • Input: AC 100-240V 50-60Hz, Output: 14. 85V 3. 05a 45W. Knowing what specific Mac model you have is important. Please check out carefully before...
  • Fully compatible: Part number: A1436 A1466 A1465; Mac Book Air (13-inch, Mid 2012); Mac Book Air (11-inch, Mid 2012); Mac Book Air (13-inch, Mid...
  • Features magnetic DC connector: The magnetic DC connector makes it easy to disconnect harmlessly the cord If someone should trip over it, your Mac...
  • Security assurance: Replacement Mac Book Air chargers Manufactured with the highest quality materials and include multiple smart features safeguarding...
  • Satisfaction: our team of professionals is constantly working to make you happier. We provide technical support for customers 24/7. We are confident...
SaleBestseller No. 18
19.5V 3.33A 65W AC Charger Replacement for HP Elitebook 840-G3 850-G3 820-G3 745-G3 725-G3 755-G3...
  • Output: 19.5V ~ 3.33A ~ 65W , Input: 100~240V / 50~60Hz
  • Compatible for HP ProBook X360 11 G1 G2 G3 G4 G5 G6 EE, ProBook 440-G3 440-G4 440-G5 450-G3 450-G4 450-G5 455-G3 455-G4 455-G5 470-G3 470-G4 470-G5...
  • Connector: 4.5mm * 3.0mm Blue tip (make sure the connector size is the same as your original charger!!!)
  • 100% New from Manufacturer, 100% Compatibility With the OEM Laptop AC Charger/Adapter, CE/FCC/ROHS Safety Certificate. Package: 1x AC Power Adapter &...
  • ★ Package: 1x AC Power Adapter & 1x AC Power Cable 4.92 Ft & 1x User Manual. Buy with Confidence: 30 Days Unconditional Refund, 12 Months Warranty,...
SaleBestseller No. 19
DJW 19.5V 2.31A 45W Ac Adapter/Power Cord Supply for HP Pavilion 11 13 15;HP elitebook Folio 1040...
  • Input: AC 100-240V 1. 5a 50-60Hz 2). output: 19. 5V 2. 31a 45W;
  • Connector tip: 4. 5*3. 0mm (blue tip, refer to the picture); two plugs; compatible for: HP stream 11 k2l95ua#aba 11-d020nr 11-d010nr 11-d010wm...
  • Package: 1x AC adapter & 1x AC power cable.
  • Ce/RoHS certified for security, 100% compatibility with the OEM
  • Please check your laptop models to ensure you are getting the correct adapter for your laptop!
Bestseller No. 20
65W Adapter Laptop Charger for HP Chromebook 11 14 G3 G4 X360 Series Notebook Charger 11-v020wm...
  • AC Input: 100 - 240V~1.8A 50-60Hz, Output: DC 19.5V 3.33A 65W Blue Tip; Inner diameter - 3.0mm Outer diameter - 4.5mm(Please make sure the charger...
  • This Adapter works with HP Chromebook 11 14 X360 G3 G4 G5 Series: 11-v000 11-ae000 11-v002dx 11-v010nr 11-v019wm 14-q010nr 14-q020nr 14-q030nr...
  • This Adapter works with HP Envy 13 15 17 X360 Series: 15-1039wm 15-1033wm 15-w117cl 15-w237cl 15m-cn0011dx 15m-bp111dx 15m-bq121dx 15-u010dx 15-u011dx...
  • CE/FCC-Certified. Tested under strict quality control standards, strict guidelines for compatibility.
  • Service: Janboo guarantee - your repeat business is important for us, so if you do not like our product or don't want It for any reason, we will...

Having trouble finding a great ibook g4 charger?

This problem is well understood by us because we have gone through the entire ibook g4 charger research process ourselves, which is why we have put together a comprehensive list of the best ibook g4 chargers available in the market today.

After hours of searching and using all the models on the market, we have found the best ibook g4 charger for 2023. See our ranking below!

How Do You Buy The Best Ibook G4 Charger?

Do you get stressed out thinking about shopping for a great ibook g4 charger? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching ibook g4 charger, which is why we have assembled a comprehensive list of the greatest ibook g4 charger available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for ibook g4 charger that you consider buying. Your questions might include the following:

  • Is it worth buying an ibook g4 charger?
  • What benefits are there with buying an ibook g4 charger?
  • What factors deserve consideration when shopping for an effective ibook g4 charger?
  • Why is it crucial to invest in any ibook g4 charger, much less the best one?
  • Which ibook g4 charger are good in the current market?
  • Where can you find information like this about ibook g4 charger?

We’re convinced that you likely have far more questions than just these regarding ibook g4 charger, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for ibook g4 charger, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible ibook g4 charger. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an ibook g4 charger buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available ibook g4 charger currently available on the market.

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  1. Brand Value: Every brand of ibook g4 charger has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an ibook g4 charger?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your ibook g4 charger.
  5. Customer Ratings: Number ratings grade ibook g4 charger objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their ibook g4 charger.
  7. Product Quality: You don’t always get what you pay for with an ibook g4 charger, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an ibook g4 charger is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining ibook g4 charger information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding ibook g4 charger is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

Related Post:

FAQ:

Q: How do you unlock my iBook G4?

A: How do I reset my ibook g4? Restart your computer: hold down the apple key and the “S” key. Type the command “/sbin/fsck -y” then enter. Type the command “/sbin/mount -uaw” then enter. Type the command “rm /var/db/. applesetupdone” then enter. Enter reboot and Enjoy!! How do you unlock the cursor on a Mac?

Q: How to reset an iBook G4?

A: perhaps there is a translation issue, but “resetting” the iBook before the upgrade actually happens during the upgrade process. When you insert the upgrade disk and start the installer, it will reset your iBook. It is highly advised to do a full backup of your computer before an upgrade — just in case.

Q: What is an iBook G4 still good for?

A: PowerPC Productivity. The modern workplace is filled with distractions,from official business applications,like Slack and Microsoft Teams,to social media frivolities. Old Mac Games Still Run,Too. Of course,it’s not all fun and no play. … Historical Context. … Hot to Get Your Hands on an Old Mac. …

Q: What is the command key on the iBook G4?

A: Command (⌘)-R: Start up from the built-in macOS Recovery system. … Option (⌥) or Alt: Start up to Startup Manager,which allows you to choose other available startup disks or volumes. … Option-Command-P-R: Reset NVRAM or PRAM. … Shift (⇧): Start up in safe mode. … D: Start up with the Apple Diagnostics utility. …