J7F2: larger bios chip?

[maarten van es]

Hello everyone,

I have just started to try out coreboot, and so far it works great in
qemu. My real target however is the jetway J7F2. I would like a larger
bios chip than the standard 512 kB on this board. Does anyone have
some suggestions on compatible bios chips? Also, pointers to places to
order such a chip (and a plcc remover tool) would be appreciated. I am
in Dublin, so a place in Ireland or the UK would be great.

Regards
Maarten

[David Hendricks]

On Tue, Apr 7, 2009 at 12:04 PM, maarten van es
wrote:
> Hello everyone,
>
> I have just started to try out coreboot, and so far it works great in
> qemu. My real target however is the jetway J7F2. I would like a larger
> bios chip than the standard 512 kB on this board. Does anyone have
> some suggestions on compatible bios chips? Also, pointers to places to
> order such a chip (and a plcc remover tool) would be appreciated. I am
> in Dublin, so a place in Ireland or the UK would be great.
>
> Regards
> Maarten

Hey Maarten,
Can you provide more information about the flash chip? Manufacturer and part
number would help a lot so we can look up a datasheet. The most important
things to know before going any further (imho) are interface (LPC/FWH/SPI)
and voltage.

Also, try picking from the list of chips Flashrom supports:
http://www.coreboot.org/Flashrom#Supported_devices .

[maarten van es]

Hi

flashrom recognizes the chip as winbond W39V040B, which corresponds
with what I can make out of the lettering on the chip.

Thanks
Maarten

On Tue, Apr 7, 2009 at 8:26 PM, David Hendricks
 wrote:
> On Tue, Apr 7, 2009 at 12:04 PM, maarten van es 
> wrote:
> > Hello everyone,
> >
> > I have just started to try out coreboot, and so far it works great in
> > qemu. My real target however is the jetway J7F2. I would like a larger
> > bios chip than the standard 512 kB on this board. Does anyone have
> > some suggestions on compatible bios chips? Also, pointers to places to
> > order such a chip (and a plcc remover tool) would be appreciated. I am
> > in Dublin, so a place in Ireland or the UK would be great.
> >
> > Regards
> > Maarten
>
> Hey Maarten,
> Can you provide more information about the flash chip? Manufacturer and part
> number would help a lot so we can look up a datasheet. The most important
> things to know before going any further (imho) are interface (LPC/FWH/SPI)
> and voltage.
>
> Also, try picking from the list of chips Flashrom supports:
> http://www.coreboot.org/Flashrom#Supported_devices .

[Peter Stuge]

maarten van es wrote:
> flashrom recognizes the chip as winbond W39V040B, which corresponds
> with what I can make out of the lettering on the chip.

This is a 4Mbit 3.3V LPC flash chip.

You could go all the way up to 16Mbit with a SST49LF160C-33-4C-NHE,
or for 8Mbit try SST49LF080A-33-4C-NHE.

Another 8Mbit option is Winbond W39V080APZ.

I found no offers for these in .ie.

http://bios-repair.co.uk/bios/eeprom.htm have 16Mbit SST, 8Mbit SST
and 8Mbit Winbond. I would buy SST. We've seen some Winbond chips
fail mysteriously. :\

//Peter

[maarten van es]

Thanks for all the quick replies! Bios-repair looks exactly like what
I need, I'll be buying one of the SST chips.

Maarten

On Tue, Apr 7, 2009 at 10:29 PM, Peter Stuge  wrote:
> maarten van es wrote:
> > flashrom recognizes the chip as winbond W39V040B, which corresponds
> > with what I can make out of the lettering on the chip.
>
> This is a 4Mbit 3.3V LPC flash chip.
>
> You could go all the way up to 16Mbit with a SST49LF160C-33-4C-NHE,
> or for 8Mbit try SST49LF080A-33-4C-NHE.
>
> Another 8Mbit option is Winbond W39V080APZ.
>
> I found no offers for these in .ie.
>
> http://bios-repair.co.uk/bios/eeprom.htm have 16Mbit SST, 8Mbit SST
> and 8Mbit Winbond. I would buy SST. We've seen some Winbond chips
> fail mysteriously. :\
>
> //Peter

[Corey Osgood]

On Tue, Apr 7, 2009 at 5:46 PM, maarten van es
wrote:
> Thanks for all the quick replies! Bios-repair looks exactly like what
> I need, I'll be buying one of the SST chips.
>
> Maarten
>
> On Tue, Apr 7, 2009 at 10:29 PM, Peter Stuge  wrote:
> > maarten van es wrote:
> > > flashrom recognizes the chip as winbond W39V040B, which corresponds
> > > with what I can make out of the lettering on the chip.
> >
> > This is a 4Mbit 3.3V LPC flash chip.
> >
> > You could go all the way up to 16Mbit with a SST49LF160C-33-4C-NHE,
> > or for 8Mbit try SST49LF080A-33-4C-NHE.
> >
> > Another 8Mbit option is Winbond W39V080APZ.
> >
> > I found no offers for these in .ie.
> >
> > http://bios-repair.co.uk/bios/eeprom.htm have 16Mbit SST, 8Mbit SST
> > and 8Mbit Winbond. I would buy SST. We've seen some Winbond chips
> > fail mysteriously. :\

I can confirm that the Winbond works ;)

-Corey