{"id":383,"date":"2010-02-13T13:26:02","date_gmt":"2010-02-13T18:26:02","guid":{"rendered":"http:\/\/swildow.darktech.org\/wp\/?p=383"},"modified":"2010-02-13T13:29:29","modified_gmt":"2010-02-13T18:29:29","slug":"failsafe-boot-block-rom","status":"publish","type":"post","link":"https:\/\/www.wildow.com\/blog\/?p=383","title":{"rendered":"FailSafe Boot Block ROM"},"content":{"rendered":"<p>Joeman &#8230;. on some HP\/Compaq systems you could hold down a sequence of keys that would force a flash, looking for that now &#8230; But I did find this ( of course all this maybe mute because it now has a ASUS BIOS)<\/p>\n<p>The FailSafe Boot Block ROM allows for system recovery in the unlikely event of a ROM flash failure, for example, if a power failure were to occur during a ROM upgrade. The Boot Block is a flash-protected section of the ROM that checks for a valid system ROM flash when power to the system is turned on.<!--more--><\/p>\n<p>If the system ROM is valid, the system starts normally.<br \/>\nIf the system ROM fails the validation check, the FailSafe Boot Block ROM provides enough support to start the system from a ROMPaq diskette, which will program the system ROM with a valid image.<\/p>\n<p>NOTE: Some models also support recovery from a ROMPaq CD.<\/p>\n<p>When the bootblock detects an invalid system ROM, the System Power LED blinks RED 8 times, one every second, followed by a 2-second pause. Also 8 simultaneous beeps will be heard. A Boot Block recovery mode message is displayed on the screen (some models).<\/p>\n<p>NOTE: The beeps continue through five cycles of 8 simultaneous beeps and stop; however, the LED continues blinking until the issue is resolved.<\/p>\n<p>To recover the system after it enters Boot Block recovery mode, complete the following steps:<\/p>\n<p>If there is a diskette in the diskette drive or a CD in the CD drive, remove the media and turn off the power.<br \/>\nInsert a ROMPaq diskette, bootable drive key, or CD.<br \/>\nTurn on power to the system.<br \/>\nIf no ROMPaq diskette is found, you will be prompted to insert one and restart the computer.<br \/>\nIf a supervisor password has been established, the Caps Lock light will turn on and you will be prompted to enter the password.<br \/>\nEnter the supervisor password.<br \/>\nIf the system successfully starts from the media and successfully reprograms the ROM, then the three keyboard lights will turn on. A rising tone series of beeps also signals successful completion.<br \/>\nRemove the media and turn the power off<br \/>\nTurn the power on again to restart the computer.<\/p>\n<p>The following table lists the various keyboard light combinations used by the Boot Block ROM (when a PS\/2 keyboard is attached to the computer), and explains the meaning and action associated with each combination.<\/p>\n<p>Failsafe Boot Block Mode<br \/>\nKeyboard LED Color<br \/>\nKeyboard LED Activity<br \/>\nState\/Message<\/p>\n<p>Num Lock<br \/>\nGreen<br \/>\nOn<br \/>\nROMPaq media not present, is bad, or drive not ready<\/p>\n<p>Caps Lock<br \/>\nGreen<br \/>\nOn<br \/>\nEnter password.<\/p>\n<p>Num, Caps, Scroll Lock<br \/>\nGreen<br \/>\nBlink on in sequence, one-at-a-time &#8211; N, C, SL<br \/>\nKeyboard locked in network mode.<\/p>\n<p>Num, Caps, Scroll Lock<br \/>\nGreen<br \/>\nOn<br \/>\nBoot Block ROM Flash successful. Turn power off, then on to reboot.<\/p>\n<p>NOTE: Diagnostic lights do not flash on USB keyboards.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The FailSafe Boot Block ROM allows for system recovery in the unlikely event of a ROM flash failure, <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-383","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/www.wildow.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/383","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wildow.com\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wildow.com\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wildow.com\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wildow.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=383"}],"version-history":[{"count":5,"href":"https:\/\/www.wildow.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/383\/revisions"}],"predecessor-version":[{"id":385,"href":"https:\/\/www.wildow.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/383\/revisions\/385"}],"wp:attachment":[{"href":"https:\/\/www.wildow.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=383"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wildow.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=383"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wildow.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=383"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}