On Fri, Mar 27, 2009 at 8:59 AM, samuel <[email protected]> wrote: > All this talking about a single pin that is causing this is making me > think about something... > This mainboard has 2 jumpers. Each next to each other... > One is "BIOS RESET" and the other is "CRISIS PARK"... Could that > CRISIS PARK maybe connect to pin 8 to disable the flashrom writes??? I > guess if i measure the voltage and/or ohm that should tell me? >
reference: http://bizsupport1.austin.hp.com/bc/docs/support/SupportManual/c00856243/c00856243.pdf page 63 and page 64 (it's component 18) on page 65: PARK: "Normal boot" or "Boot block enabled" doesn't sount like bios write protection... so this prolly is nothing... > > > On Fri, Mar 27, 2009 at 8:55 AM, Peter Stuge <[email protected]> wrote: >> samuel wrote: >>> >>Do you have access to a continuity tester? Please check this >>> >>connection. >>> >>> I do not have access to a continuity tester. >> >> .. >> >> >>> >> * You can insulate the #TBL pin of the flash chip from the >>> >> corresponding socket contact, and connect #TBL to Vdd. According >>> >> to the datasheet of SST49LF080A, providing Vih(=Vdd) to #TBL >>> >> disables write protection on the boot block. >>> >>> I guess i can try this... I suppose it won't hurt? >> >> Yep, it's a good idea. Bend pin 8 up and make sure it doesn't have >> contact with the socket, then connect it to pin 32 or 25. (Both VDD) >> >> >>> >>Correct. It is most likely the cause. But - it would also be >>> >>interesting if you could measure the voltage Samuel, on pin 8 >>> >>after having run flashrom in any mode. >>> >>> I will get a volt meter... What pin should i use as ground? I tried >>> having a look at page 7 of the LPC data sheet but i didn't see a >>> ground pin... >> >> 16, VSS is ground. >> >> Maybe that volt meter also has an ohm meter function. That works >> well as a continuity tester too - if two points are connected the >> resistance will be 0.00 ohm. >> >> >> //Peter >> >> -- >> coreboot mailing list: [email protected] >> http://www.coreboot.org/mailman/listinfo/coreboot >> > -- coreboot mailing list: [email protected] http://www.coreboot.org/mailman/listinfo/coreboot
