<html><head><meta http-equiv="Content-Type" content="text/html charset=iso-8859-1"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">Hi Stefan,<div><br></div><div>I understand that it looks strange, but yes it is a small 6-pin package, with I maybe wrongle identified as a 6-pin sot23 (or sot23-6) package.</div><div>I'm not sure about the pinouts, though (I easily found vdd and vcc, bot on other trace are hard to follow on the board of the graphic card)</div><div>Whith a magnifier I only manage to read the two letters YU on the package... </div><div><br></div><div>What is strange is with those packages I only found datasheets of smaller eeprom (1k, 2k, but not 1 or 2Mbits which is the attempted size regarding the size of bios of those products)</div><div><br></div><div>I'll run the command and send you photos later this day</div><div><br></div><div>regards</div><div><br></div><div>gilles</div><div><br></div><div><br></div><div><br></div><div><br><div apple-content-edited="true">
<span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>--</div><div>Gilles Aurejac</div><div>Polysoft Services</div><div><a href="http://www.polysoft.fr">http://www.polysoft.fr</a></div><div><br></div></div></span></span><br class="Apple-interchange-newline"><br></span>
</div>
<br><div><div>Le 6 janv. 2015 à 11:10, Stefan Tauner <<a href="mailto:stefan.tauner@alumni.tuwien.ac.at">stefan.tauner@alumni.tuwien.ac.at</a>> a écrit :</div><br class="Apple-interchange-newline"><blockquote type="cite">On Tue, 6 Jan 2015 02:54:31 +0100<br>Gilles Aurejac <<a href="mailto:gilles@polysoft.fr">gilles@polysoft.fr</a>> wrote:<br><br><blockquote type="cite">you're right I did wrote to the flash ship twice (and forgot the -V option the first time).<br>I'm confident that the write operation worked : I first have read and save, then updated this chip (2nd bios chip of a gtx 770 nvidia card) succesfully with flashrom and compared with an hexadecimal the 2 dumps which reported the attempted differences.<br><br>If you wish I can ran the write operation again and send you the result.<br></blockquote><br>Hi,<br><br>no need, I just wanted to make sure.<br>I have marked the flash chip as fully tested and will commit that later<br>together with other small changes.<br><br><blockquote type="cite">Also I did not have the same success with the 1rst bios chip which is not recognized (0Kb) by flashrom, and neither by nvflash under windows (nvflash says : unknown eeprom - BF,008D : this is a SST chip)<br>This is a 2Mbits spi eeprom with a sot-23 package.<br></blockquote><br>sot-23 would be pretty spectacular... because that has only 3 pins ;)<br>I believe you mean SOIC-8 instead.<br><br>SPI flashes can use a few different ID methods which often share (parts<br>of) ID bytes. 0xBF is indeed the SST vendor ID... and 0x8d is even (the<br>main) part of a known device: the SST25VF040B. But it should be<br>detected ok with flashrom. Can you please send us the log produced with:<br>flashrom -p buspirate_spi:dev=COM5 -VVV -o SST25VF040B_probe_spew.log<br>Maybe I can spot what/if something is wrong.<br><br>The top marking of the chip would also help very much in verifying if<br>it is a SST25VF040B or something else.<br>-- <br>Kind regards/Mit freundlichen Grüßen, Stefan Tauner<br></blockquote></div><br></div></body></html>