/* * These styles apply ONLY to the header and footer assets. */ } body:hover { color: #0276b3; } * { padding: 0; margin: 0; box-sizing: border-box; } .footer { background: #f5f5f6; color: #555a62; font-size: 14px; line-height: 1.5; padding: 18px 0; } .footer-wrap { padding-left: 18px; padding-right: 18px; max-width: 1236px; margin: 0 auto; } .footer a { color: #0291db; } .footer a:hover { color: #0276b3; } .footer-row { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; margin: -3px; } .footer-col { padding: 0 3px; } .footer-col-copyRight { justify-content: flex-start; } .footer-col-logo { justify-content: flex-end; } .footer-col-copyRight, .footer-col-logo { flex: 1; display: flex; } .logo { width: 120px; height: 28px; opacity: 0.6; } @media screen and (max-width: 768px) { .footer-row { display: block; } .footer-col { width: 100%; text-align: center; margin: 6px 0; } .footer-col:first-child { margin-top: 0; } .footer-col:last-child { margin-bottom: 0; } .footer-col-copyRight, .footer-col-logo { justify-content: center; } .logo { margin: 0 auto; } } /*# sourceMappingURL=styles.css.map */ /* * These styles apply ONLY to the header and footer assets. */ * { padding: 0; margin: 0; box-sizing: border-box; } .footer { background: #f5f5f6; color: #555a62; font-size: 14px; line-height: 1.5; padding: 18px 0; } .footer-wrap { padding-left: 18px; padding-right: 18px; max-width: 1236px; margin: 0 auto; } .footer a { color: #0291db; } .footer a:hover { color: #0276b3; } .footer-row { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; margin: -3px; } .footer-col { padding: 0 3px; } .footer-col-copyRight { justify-content: flex-start; } .footer-col-logo { justify-content: flex-end; } .footer-col-copyRight, .footer-col-logo { flex: 1; display: flex; } .logo { width: 120px; height: 28px; opacity: 0.6; } @media screen and (max-width: 768px) { .footer-row { display: block; } .footer-col { width: 100%; text-align: center; margin: 6px 0; } .footer-col:first-child { margin-top: 0; } .footer-col:last-child { margin-bottom: 0; } .footer-col-copyRight, .footer-col-logo { justify-content: center; } .logo { margin: 0 auto; } } /*# sourceMappingURL=styles.css.map */ .Panel{ width:250px } .MainContent.Content{ width:calc(100% - 290px); } .Box.Tags{ display:none; } #vanilla_discussion_embed .mcrow{ display:none; } @media screen and (max-width:992px){ .Panel,.MainContent.Content { width:100%!important } } @media only screen and (max-width:700px){ .MainContent center img { width:100% } } .CategoryHeading .ItemContent{ font-size:28px } .Item .TitleWrap .Title { font-size:20px !important; } .Meta-Discussion{ background:#f7f7f7; border:1px solid #efefef; padding:5px; margin:0 } .Header-desktopNav .Navigation-linkContainer a{ font-family:barlow; font-size:16px } .Header-desktopNav .Navigation-linkContainer a:active,.Header-desktopNav .Navigation-linkContainer a:focus,.Header-desktopNav .Navigation-linkContainer a:hover{ background:#231f20; } .Header .MeButton:active,.Header .MeButton:focus,.Header .MeButton:hover{ background-color:#231f20; } .ButtonGroup.Multi>.Button:first-child{ border-radius:0 } .BoxFilter,.BoxCategories{ background:#fff; padding:5px; border:1px solid #ccc; border-radius:10px; margin:20px 0 } .BoxFilter-Heading,.Panel .BoxCategories>h4{ width:auto; padding:5px 10px 10px; margin:0 -5px; border-bottom:1px solid #ccc; border-radius:0; font-family:barlow,sans-serif; } .side-promo{ margin:20px 0; width:100%; text-align:center; } .build-submit-tile,.build-showcase-tile{ margin-top:20px; border:2px solid #d9e7f4; border-radius:10px; background:#fff; padding:15px } .build-showcase-tile-link{ border:1px solid #e2e2e2; background:#f5f5f5; display:block; font-size:16px; text-align:center; padding:5px 10px } .build-submit-tile hr{ border:0; height:0; border-top:1px solid rgba(0,0,0,.1); border-bottom:1px solid rgba(255,255,255,.3); margin:20px 0 15px } .build-submit-tile h4,.build-showcase-tile h4{ color:#353535; line-height:1 } .build-showcase-tile h4{ color:#24883e } .build-submit-tile p,.build-showcase-tile p{ font-weight:600; color:#797676; margin:10px 5px } .build-submit-tile a{ border:1px solid #135d93; padding:5px 10px; width:90%; margin:0 auto; text-align:center; display:block } .build-showcase-tile a:first-child{ } .BoxCategories-Heading a{ font-size:18px } .BoxCategories.BoxCategories ul.FilterMenu li .ItemLink.appointment-btn{ width:92%; padding:5px 10px; margin:10px auto 15px; border-radius:0; display:block; background:#135d93; color:#fff; text-align:center; } .BoxCategories ul{ margin:0 5px } body.Section-Profile .Panel-main .PhotoWrapLarge{ margin-bottom:0 } .Panel{ padding:10px; background:#eee; } .Header{ background-color:#3a3738; } .Header-logo img{ max-height:35px; padding-right:20px } h4{ font-size:24px } .Panel-main h2,.Panel-main h4{ font-size:20px } .Panel h4{ padding:0 } .CategoryHeading,.Item .TitleWrap,.Item .Title,.heading,h1,h2,h3,h4,h5,h6{ font-family:barlow,sans-serif; font-weight:500!important } .DataList .Item .Title,.DataList .MItem a,.BoxCategories.BoxCategories a,.BoxFilter:not(.BoxBestOfFilter) a{ color:#135d93; } .BoxButtons .Button.Primary{ background:#135d93; } .Number{ color:#c74800; } .CategoryHeading,.Item .Title,.Item.Read .Title,.CategoryName h2,.Item .TitleWrap,[aria-level="3"] a{ color:#172b44 } .DataList.CategoryList .CategoryHeading{ padding-top:20px!important } .DataList.CategoryList .CategoryHeading:first-child{ padding-top:0!important } .DataList .CategoryHeading{ font-size:24px } .BoxButtons .Button.Primary,.groupToolbar .Button.Primary{ background:#135d93; border:0; color:#fff } .ButtonGroup.Multi .Button.Handle,.ButtonGroup.Multi.Open .Button.Handle{ background-color:transparent; color:#fff; border:0; border-radius:0 } .Pager .QuickSearchButton,.Pager .QuickSearchWrap .Button{ background:#b3d4fc; border:1px solid #b3d4fc; color:#000; } .build-submit-tile{ border:2px solid #d9e7f4; border-radius:10px; background:#fff; padding:10px 10px 20px } .build-submit-tile hr{ border:0; height:0; border-top:1px solid rgba(0,0,0,.1); border-bottom:1px solid rgba(255,255,255,.3); margin:20px 0 15px } .build-submit-tile h3{ font-size:20px; color:#ca500f; line-height:1 } .build-submit-tile p{ font-weight:600; color:#797676; margin:10px 5px } .build-submit-tile a{ border:1px solid #135d93; padding:5px 10px; width:90%; margin:0 auto; text-align:center; display:block; } .builds-keywords{ border-radius:0 0 8px 8px; margin:-15px; margin-top:15px; background:#efefef; padding:10px 15px 14px; border-top:1px solid #d9e7f4 } .builds-keywords h5{ margin-bottom:7px } .builds-keywords a{ border:0; display:block; padding:2px 5px; width:89%; background:#757575; color:#fff; margin:2px auto; text-align:center; } .builds-keywords a:hover{ background:#135d93; color:#fff; } .BuildPromo-container{ padding:10px; margin-top:20px; border:1px solid #ccc; background:#dadada; } .BuildPromo-container h2{ font-size:24px; color:#983b0a; } .BuildPromo-container h3{ font-size:20px; margin-bottom:10px; color:#525252; } .BuildPromo-container p{ font-weight:700; margin-bottom:20px; text-align:center; color:#0f670b; font-size:14px } .BuildPromo-container a{ font-weight:600; display:block; padding:5px 10px; width:80%; margin:0 auto; text-align:center; color:#135d93; border:1px solid #135d93 } .Panel .UserBox{ background:#fff; padding:10px; border-radius:10px 10px 0 0; border:1px solid #ccc; border-bottom:0 } .Panel .UserBox+.SideMenu{ margin-top:0; border:1px solid #ccc; background:#fff; padding:10px; border-radius:0 0 10px 10px } .Panel .UserBox+.SideMenu li a{ color:#135d93; } a,a:focus,a:hover{ color:#215cbb; } a{ text-decoration:none; color:#215cbb; } .Header-logo.mobile img{ max-height:35px; padding-right:20px } .Header.mobile{ background-color:#666; } .Message.userContent img{ height:auto; max-width:600px; display:block; } .Header-logo img{ max-height:32px } .mcrow{ display:flex; align-items:flex-end; } a.mclogo{ margin: 10px 0; display:block; height:auto; } .mclogo img{ display:block; } ul.mc-menu{ width:100%; margin:auto 0; display:flex; list-style: none; } ul.mc-menu a{ font-size:16px; font-family:barlow; font-weight:500; color:#135d93; } ul.mc-menu li.menu-item a:hover{ color:#0291db; } ul.mc-menu li{ margin-left:15px } ul.mc-menu li.menu-item.menu-computers{ margin-left:auto; } @media only screen and (max-width:700px){ ul.mc-menu li.menu-item.menu-computers { display:none; } } @media only screen and (max-width:480px){ .menu-computer-parts { display:none; } ul.mc-menu li.menu-diy{ margin-left: 7px; } ul.mc-menu li.menu-custom-pc-builder{ margin-left: 7px; } } @media only screen and (max-width:700px){ .Message.userContent img { max-width:calc(100% - 10px); } }

Knowledge Base

How to troubleshoot your Mac not powering on

This article describes steps to take when troubleshooting Mac power issues.

1. Check for power related issues:

Press the power button, then look for signs of power such as:

1. Hard drive sounds

2. Fan noises

3. Backlit keyboard, Caps Lock LED, or sleep indicator light

2. If your Mac has no signs of power:

1. Make sure that you are plugged into a working outlet.

2. Check your power cable for damage and it is securely plugged into your Mac. Make sure that it is the correct power cable for your Mac.

3. If you are using a Mac notebook, make sure that it is plugged in long enough for the battery to charge.

4. If you’re using an external display, make sure that it is turned on.

3. Whether or not your Mac has power, try these steps:

1. Press and hold the power button for 10 seconds, then press it again.

2. Unplug all accessories from Mac, including printers, external drives, USB hubs, and mobile devices. Hold down the power button for 10 seconds, then press it again.

4. Reset the System Management Controller (SMC):

a. To reset the (SMC), follow these steps:

1. Press Shift-Control-Option on the left side of the keyboard and press the power button at the same time. Hold these keys and the power button for 10 seconds.

i. Release all keys.

ii. Press the power button again to turn on your Mac.

b. To reset the (SMC) on Mac desktop computer, follow these steps:

i. Unplug the power cord.

ii. Wait 15 seconds.

iii. Plug the power cord back in.

iv. Wait 5 seconds, then press the power button again to turn on your Mac.

If these options do not help, you may want to look into possible service of the computer, such as what we can offer here at Micro Center: https://www.microcenter.com/site/service/service.aspx