Dreamcast BIOS chips (MX29LV160TMC-90)

Arrived yesterday - thanks!

 

everything arrived thanks again installed Saturn Bios so far and works perfect

Also for anyone who does not have rework station they should pick up a CHIP QUIK smd removal kit it makes removal stupid simple there like $13 on ebay

 

Hello!

I am interested in:
1x 3.3v chip flashed with Link83
1x Battery holder

Could you please provide a price, shipped to mainland UK?

Thank you very much!

 

Just received the chips, ultra fast delivery, Bad_Ad84 rules again! Thank you!

 

Hey,
Can i get 1 blank, 1 link83 region free bios
Shipping to canada

Would you happen to have switches and resistor's as well?

*Payment sent*

Thank you once again

 

Hi!, i would like to order 2 pre-flashed 3.3V link83 region free bios for Dreamcast + 2 Dreamcast Battery Holder (Vertical)
Shipping to US
Thanks in advance

Edit: Everything arrived perfectly. Fast shipping and great service! Thank you!!

 

Hello !!

Do you have chip in stock ?

I need one piece preprogammed with link83's bios for a VA2.1 MB.

Shipping in France.

 

First one in 2013 , yay

Is this thing still going?
Are there still chips to have?
If so, could anybody answer me ?

 

You have somehow missed the first post with the large text.

 

http://www.assemblergames.com/forum...-dreamcast-with-bad-multibios-mod-instalation

 

Hi, I sent payment for 2x 3.3V flashed bios chips for a VA1 board. Just making sure you notice, the private messages are pretty weird and I can't see sent items.

 

you have to turn on saving of sent items.

No idea why it would be configured like that, but it is.

 

i want 5 pecies of bios chips mx29lv.....90 pls tell me where to buy them o pay money

i am thankfull to you to do so ....pls friend tell me where to buy tose chips ...little bit confuse...
i have 3 dreamcast so i want to set those bios chips in there...


i really thankfull to u to do so...

 

Hi folks, a little off topic I know, but...... Is anyone selling a console with one of these pre installed in Piggy Back formation? Having fried the Board on one of 2 DC's here I am not trusting enough to set about the 2nd one with the soldering iron. Failing that, anyone know of a place in Ireland that would undertake such an install?

Many thanks

Craig.

Galway, Ireland

 

I hate it so fuckin' much, it always happens to me and I don't know what I'm doing wrong.
I tried everything, heating up the board a little with a heatgun so that the temperature is good to solder etc.
Still those solderpads keep coming off, no matter how slow I take off the IC from the board.
What am I doing wrong???

See the red marked ones are gone, can anyone tell me where they were going to or if there are any alternative solderpoints?

 

You can see the traces in the picture... just follow them. use a multimeter to confirm

 

Sorry but Pin 22, 25, 27 have no traces and Pin 10 and Pin 21 are going under the IC502 so I can't follow them.

from the looks of the biosrom datasheet
Pin 10 is A1
Pin 21 is Q3
Pin 22 is Q11
Pin 25 is Q12
Pin 27 is Q13

But where are they connected to?
IC501 Pin 10 to IC502 Pin 20, cause both A1 ?

Please help :/

 

Q11, 12 and 13 are NC as chip is used in 8 bit mode. The other 2 have vias right next to the pads, so just solder to those?

Failing that, use multi meter on the vias, then on the other side of the board, check around the gdrom area - there are some test points there and the gdrom is on the same bus

 

Thanks.
What can I do in future to prevent the solderpads to come off?

 

Easiest way other than saying "do it properly" is to use fine side cutters and snip the legs near the body of the chip. Then use soldering iron and apply solder to each pad (with the remaining leg still attached). This will let you remove the leg. Then clean up the pads with braid.