- Sign up
- ·
- Sign in
- Sign up / Sign in
×
Information
Need Windows 11 help?
Check documents on compatibility, FAQs, upgrade information and available fixes.
Windows 11 Support Center.
×
Information
Need Windows 11 help?
Check documents on compatibility, FAQs, upgrade information and available fixes.
Windows 11 Support Center.
- HP Community
- Notebooks
- Notebook Boot and Lockup
- CMOS 502 Invalid Checksum and Random restarts
CMOS 502 Invalid Checksum and Random restarts
Options
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Mute
- Printer Friendly Page
turn on suggested results Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for
Search instead for
Did you mean:
Start a conversation
Guidelines
Are you having HotKey issues? Click here for tips and tricks.
Create an account on the HP Community to personalize your profile and ask a question
Your account also allows you to connect with HP support faster, access a personal dashboard to manage all of your devices in one place, view warranty information, case status and more.
Sign in / Create an account
Sign in / Create an account / Learn more
Aryan461
2 0 0 139
New member
03-11-202509:13 PM
HP Recommended
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Flag Post
Product: HP Pavilion x360 Convertible Laptop PC 14-dh0107tu
Computer: HP pavilion 14dh CPU i3 8th Gen RAM: 16gb OS: Arch Linux
Issue: The issue when my computer boots it sometimes shows "CMOS invalid Checksum CMOS ERROR 502 Reset". When I move(or slam the table) my laptop is restarts.
Tags (1)
- Tags:
- HP Pavilion x360 Convertible Laptop PC 14-dh0107tu
View All (1)
Category:
- Black Screen
- Boot Looping
- Others
Reply
I have the same question
2 REPLIES 2
BeemerBiker
11,112 1,649 643 105
Level 12
03-11-202510:29 PM
HP Recommended
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Flag Post
Cracked motherboard or bad solder connection. Return it if in warranty.
If out of warranty possibly a heat gun can be used to reflow the solder. Any shop can try that. There are some reports of using a hair dryer to repair PCB and graphics cards but a laptop is a major disassembly.
Thank you for using HP products and posting to the community.
I am a community volunteer and do not work for HP. If you find
this post useful click the Yes button. If I helped solve your
problem please mark this as a solution so others can find it
Reply
1 person found this reply helpful
Was this reply helpful?YesNo
Aryan461
Author
2 0 0 85
New member
03-11-202511:12 PM
HP Recommended
- Mark as New
- Bookmark
- Subscribe
- Permalink
- Flag Post
What do you mean by using a hair dyer?
Reply
Was this reply helpful?YesNo
Be alert for scammers posting fake support phone numbers and/or email addresses on the community.
If you think you have received a fake HP Support message, please report it to us by clicking on "Flag Post".
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the Terms of Use and Rules of Participation.
Didn't find what you were looking for? Ask the community
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the <a href="https://www8.hp.com/us/en/terms-of-use.html" class="udrlinesmall">Terms of Use</a> and <a href="/t5/custom/page/page-id/hp.rulespage" class="udrlinesmall"> Rules of Participation</a>.
"); } },500) }); })(LITHIUM.jQuery); var btn = $('.backToTopButton');$(window).scroll(function() { if ($(window).scrollTop() > 300) { btn.addClass('show'); } else { btn.removeClass('show'); }});btn.on('click', function(e) { e.preventDefault(); $('html, body').animate({scrollTop:0}, '300');}); (function($) { $(document).ready(function(){ $(window).scroll(function() { var s = $(".lia-top-quilt > .lia-quilt-row.lia-quilt-row-header:first-child"); var p = s.find(".lia-quilt-row-custom-header"); var top = s.offset().top; var scroll = $(window).scrollTop(); if (scroll >= 400) { $(".ask-common-wrap").addClass("footer-fixed"); } else { $(".ask-common-wrap").removeClass("footer-fixed"); } if ( scroll >= top ) { if (!(p.parent().hasClass("custom-header-background"))) { p.wrap("
"); } var backgroundDiv = p.parent(); var placeholderDiv = backgroundDiv.parent(); parentHeight = backgroundDiv.outerHeight(); placeholderDiv.css('min-height', parentHeight+'px'); backgroundDiv.addClass("stick"); } else { if(p.parent().hasClass("custom-header-background")) { p.unwrap(); } if(p.parent().hasClass("custom-header-placeholder")) { p.unwrap(); } } }); }); })(LITHIUM.jQuery);;(function($){// Workaround for survey - Part 2 function sleep(ms) { return new Promise(resolve => setTimeout(resolve, ms)); } async function surveyManualTrigger() { if (QSI.API) { await sleep(65000); QSI.API.run() } else {} } window.addEventListener("qsi_js_loaded", surveyManualTrigger, false);// Workaround for survey - Part 2 - END})(LITHIUM.jQuery);;function getParameterByName(name) { name = name.replace(/[\[]/, "\\[").replace(/[\]]/, "\\]"); var regex = new RegExp("[\\?&]" + name + "=([^]*)"), results = regex.exec(location.search); return results == null ? "" : decodeURIComponent(results[1].replace(/\+/g, " "));}(function($) {$("#markMessageAsAcceptedSolutionSecondaryButton").click(function(e){localStorage['accepted-solution-clicked'] = true;});var hpmmd=window.hpmmd||{type: 'Cleansheet Wash', page:{events:[]}, product:{},user:{},legacy:{},promo:{},search:{}};hpmmd.page.site = 'csf';hpmmd.page.name = 'ForumTopicPage'; hpmmd.page.section = 'Notebooks';hpmmd.page.subsection = 'Notebook Boot and Lockup';hpmmd.page.content_id = ''; if (LITHIUM.CommunityJsonObject.WebTracking.Activities && LITHIUM.CommunityJsonObject.WebTracking.Activities.UserMessageEvent) { hpmmd.page.page_action = LITHIUM.CommunityJsonObject.WebTracking.Activities.UserMessageEvent.replace("tracking.message.","")+" "+'forum'; hpmmd.page.content_id = ''; } if(localStorage['accepted-solution-clicked']){ localStorage.removeItem("accepted-solution-clicked"); hpmmd.page.page_action = "accepted-solution " +'forum'; hpmmd.page.content_id = ''; } if(hpmmd.page.page_action=="new forum") { if(localStorage['post-from-board']) { hpmmd.page.page_action += " board_page"; } else { hpmmd.page.page_action += " thread_page"; } } if(getParameterByName("post-from-board")=="true") { localStorage["post-from-board"] = true } else if(localStorage['post-from-board']) { localStorage.removeItem("post-from-board"); }hpmmd.user.login = 'false'; if (LITHIUM.CommunityJsonObject.WebTracking.Activities.SearchTerm) { if (!hpmmd.search) {hpmmd.search = {}} hpmmd.search.keyword = LITHIUM.CommunityJsonObject.WebTracking.Activities.SearchTerm; } window.hpmmd = hpmmd;})(LITHIUM.jQuery); ;(function($){ console.log("Medallia Global Data Layer - Checking if we have Global data layer"); if (!window.hasOwnProperty('globalDataLayer')) { console.log("Medallia Global Data Layer - No Global data layer. Creating it"); window.globalDataLayer = {} } console.log("Medallia Global Data Layer - Adding language code: " + "en"); window.globalDataLayer.LanguageCode = "en"; window.globalDataLayer.popUpSurvey = true; window.globalDataLayer.isUserAnonymous = true; window.globalDataLayer.threadboardname = "Notebook-Boot-and-Lockup"; var startTime = new Date(); var surveyPollingTimeout = 60000; var interval = setInterval(function () { if (Math.abs(new Date() - startTime) > surveyPollingTimeout) { clearInterval(interval); } if ($("#nebula_div_btn").length) { clearInterval(interval); $('.alert-section ul').append('
'); $('.alert-section-mobile ul').append('
'); var feeedbackButtonText = $('.kampyle_button-text').text(); $('.opt-feedback-link').text(feeedbackButtonText); $('[id^=opt-custom-feedback]').on('click', function(){ $('#nebula_div_btn').trigger('click'); }); } }, 500);})(LITHIUM.jQuery);(function($) {/* Check the environment (STG vs PRO) to set the correct URL. The code will run both on Stage and Production */var url = "https://global-navbar-backend.id.hp.com/api/v1/session/sso_check";$.ajax({ type: 'GET', url: url, contentType: 'application/json', dataType: 'json', xhrFields: { withCredentials: true }, success: function(data) { /* If the call is successfull, have two scenarios: */ /* If the user is NOT logged in and the results from the API says that a valid session exists, redirect the user to the Khoros sign in plugin, which will take care of authenticating the user on the community automatically */ if(data.sessionIsValid) { // window.location="https://h30434.www3.hp.com/plugins/common/feature/oauth2sso_v2/sso_login_redirect?referer=https%3A%2F%2Fh30434.www3.hp.com%2Ft5%2FNotebook-Boot-and-Lockup%2FCMOS-502-Invalid-Checksum-and-Random-restarts%2Ftd-p%2F9338558"; window.location= "/plugins/common/feature/oauth2sso_v2/sso_login_redirect?referer=https%3A%2F%2Fh30434.www3.hp.com%2Ft5%2FNotebook-Boot-and-Lockup%2FCMOS-502-Invalid-Checksum-and-Random-restarts%2Ftd-p%2F9338558"; } }, error: function (jqXHR,textStatus,errorThrow) { /* If the call is not successfull, don't take any action. */ console.log("Single Sign-on | Error: " + errorThrow); } });})(LITHIUM.jQuery);(function () { window._uxa = window._uxa || []; try { if (typeof dataLayer !== 'undefined') { } } catch (e){} if (typeof CS_CONF === 'undefined') { window._uxa.push(['setPath',window.location.pathname+window.location.hash.replace('#','?__')]); var mt = document.createElement("script"); mt.type = "text/javascript"; mt.async = true; mt.src = "https://t.contentsquare.net/uxa/eee8c774-ec16-4fc4-a63b-ee91d06bc089.js"; document.getElementsByTagName("head")[0].appendChild(mt); } else { window._uxa.push(['trackPageview',window.location.pathname+window.location.hash.replace('#','?__')]); }})();LITHIUM.PartialRenderProxy({"limuirsComponentRenderedEvent":"LITHIUM:limuirsComponentRendered","relayEvent":"LITHIUM:partialRenderProxyRelay","listenerEvent":"LITHIUM:partialRenderProxy"});LITHIUM.AjaxSupport({"ajaxOptionsParam":{"event":"LITHIUM:partialRenderProxyRelay","parameters":{"javascript.ignore_combine_and_minify":"true"}},"tokenId":"ajax","elementSelector":document,"action":"partialRenderProxyRelay","feedbackSelector":false,"url":"https://h30434.www3.hp.com/t5/forums/v4/forumtopicpage.liabase.basebody.partialrenderproxy:partialrenderproxyrelay?t:ac=board-id/Laptop-Freeze/thread-id/235520","ajaxErrorEventName":"LITHIUM:ajaxError","token":""});LITHIUM.Auth.API_URL = "/t5/util/authcheckpage";LITHIUM.Auth.LOGIN_URL_TMPL = "/plugins/common/feature/oauth2sso_v2/sso_login_redirect?referer=https%3A%2F%2FREPLACE_TEXT";LITHIUM.Auth.KEEP_ALIVE_URL = "/t5/status/blankpage?keepalive";LITHIUM.Auth.KEEP_ALIVE_TIME = 300000;LITHIUM.Auth.CHECK_SESSION_TOKEN = 'dNHW4q7OhIoC_-1';LITHIUM.AjaxSupport.useTickets = true;LITHIUM.Cache.CustomEvent.set([{"elementId":"link_2","stopTriggerEvent":false,"fireEvent":"LITHIUM:labelSelected","triggerEvent":"click","eventContext":{"uid":199,"selectedLabel":"black screen","title":"Black Screen"}},{"elementId":"link_3","stopTriggerEvent":false,"fireEvent":"LITHIUM:labelSelected","triggerEvent":"click","eventContext":{"uid":205,"selectedLabel":"boot looping","title":"Boot Looping"}},{"elementId":"link_4","stopTriggerEvent":false,"fireEvent":"LITHIUM:labelSelected","triggerEvent":"click","eventContext":{"uid":173,"selectedLabel":"others","title":"Others"}}]);LITHIUM.Loader.runJsAttached();// -->
'); } var cardWrapper = $('.hover-card-container'); var error = false; var thisUserID = ''; var cardTimer; allHoverCardTriggers.on({ mouseenter: function() { var thisEl = $(this); cardTimer = setTimeout(function(){ var docWidth = $(document).width(); var rightSide = false; //return user id var userLink = thisEl.attr('href'); if($('.ViewProfilePage').length && $('img.lia-user-avatar-profile',thisEl).length){ var userLink = document.location.href; } else if(thisEl.attr('href')=='#'){ return false; } var thisLen = (userLink).split('/'); thisUserID = (thisLen)[thisLen.length-1]; var thisCard = $('.profileCard[data-user='+thisUserID+']',cardWrapper); var thisElLeftOffset = Math.round(thisEl.offset().left+(thisEl.width())); var thisElTopOffset = Math.round(thisEl.offset().top+(thisEl.height()/2)-94); if((thisElLeftOffset+387)>=docWidth){ //hover card is too far to the right of the screen var thisElLeftOffset = Math.round(thisEl.offset().left-387); rightSide = true; } if(thisCard.length && $('.profileCard[data-user='+thisUserID+'] .preloader',cardWrapper).length<1){ $('.profileCard',cardWrapper).hide(); rightSide?thisCard.addClass('rightArrow'):thisCard.removeClass('rightArrow'); thisCard.delay(500).css({'top':thisElTopOffset,'left':thisElLeftOffset}).stop().show(); } else { var ajaxReturn = ''; //just in case thisCard.remove(); //hover card wrapper markup var rightArrowClass = rightSide?'rightArrow':''; var profileCardHtml = '
'; $.when( //get the background $.ajax({ type: 'GET', url: userApiUrl+thisUserID, dataType: 'html', success: function(data) { $('.profileCard',cardWrapper).hide(); ajaxReturn = data; } }) ) .done(function(){ cardWrapper.append(profileCardHtml); $('.profileCard[data-user='+thisUserID+']',cardWrapper).eq(0).empty().html(ajaxReturn).on({mouseleave: function() { clearTimeout(cardTimer); if($('.profileCard[data-user='+thisUserID+']',cardWrapper).length){ $('.profileCard[data-user='+thisUserID+']',cardWrapper).delay(500).fadeOut('fast'); } } }); if($('.profileCard[data-user='+thisUserID+'] .preloader',cardWrapper).length){ $('.profileCard[data-user='+thisUserID+'] .preloader',cardWrapper).parents('div.profileCard').remove(); } }) .fail(function(){ //uh oh - bail out! $('.profileCard',cardWrapper).hide(); }); } },400); }, mouseleave: function() { clearTimeout(cardTimer); if($('.profileCard[data-user='+thisUserID+']',cardWrapper).length){ $('.profileCard[data-user='+thisUserID+']',cardWrapper).delay(500).fadeOut('fast'); } } }); } } window.common = common; $(document).ready(function() { common.profileCard(); }); })(LITHIUM.jQuery);