way to use all 8GB VRAM which is half disabled on P104-100 card

[digitalica]

anybody got zotac bios?

[Morphonisma]

anybody got zotac bios?

I believe this could be of help, i downloaded it from my Zotac p104-100 4gb before flashing it to 8gb Nvidia from the links in this topic. However, having someone verify would be a bigger plus.


http://www.mediafire.com/file/wz8ds52xs0o4hr4/file

[bio666]

Hi guys sorry for my english but i'm an italian guy ..
I have 6 P104-100 from Zotac and I have
flashed the rom 208828.rom .. doing so unlock the 8 gb but my hashrate has a strange trend 
What can it depend on?

I have already tried pretty much all the roms on powertech but they are all poweer limited.

https://imgur.com/a/sH8pknZ

Thank you very much!

[money1]

I believe this could be of help, i downloaded it from my Zotac p104-100 4gb before flashing it to 8gb Nvidia from the links in this topic. However, having someone verify would be a bigger plus.

Which memory you have, Micron? And cards working fine?

[LooTa]

Hi All

I have a couple of Inno 3D P104-100 4GB. Tried four different 8GB Bios on Techpowerup. All of them open to 8GB but GPU clock stuck at 139mh(30w power cap ) when doing any mining. I've read about this from various forums but by the looks of it this Inno 3D cards is a problem with Bios flashing for not operating like it should. People have seen success with especially EVGA, Asus cards etc and operating as normal.

Now I'm wondering if there might be anyone that has a magical P104-100 8GB bios that works with these Inno 3D cards?

Many Thanks

I flashed my inno3d p104-100 to this bios, works like a charm.  37.5mh @ 135w in phoenix miner.

https://www.techpowerup.com/vgabios/208828/208828

[jasonjohnson99]

Anyone unlock colorful p104-100?  Tried a few of the firmware listed in this thread but won't flash.  Even the colorful firmware listed on techpowerup won't flash.

I get:  

WARNING: Firmware image PCI Subsystem ID (10DE.1237) does not match adapter PCI subsystem ID (7377.0000)

Device ID from GPU-Z:  10DE.1B87 - 7377.0000

Any advice is appreciated.

JJ

[bio666]

Anyone unlock colorful p104-100?  Tried a few of the firmware listed in this thread but won't flash.  Even the colorful firmware listed on techpowerup won't flash.

I get:  

WARNING: Firmware image PCI Subsystem ID (10DE.1237) does not match adapter PCI subsystem ID (7377.0000)

Any advice is appreciated.

JJ

For my Zotac i use....

1 CMD as admin
2. nvflash64 --protectoff
3. nvflash64 -6 "MyRomName".rom

[jasonjohnson99]

Anyone unlock colorful p104-100?  Tried a few of the firmware listed in this thread but won't flash.  Even the colorful firmware listed on techpowerup won't flash.

I get:  

WARNING: Firmware image PCI Subsystem ID (10DE.1237) does not match adapter PCI subsystem ID (7377.0000)

Any advice is appreciated.

JJ

For my Zotac i use....

1 CMD as admin
2. nvflash64 --protectoff
3. nvflash64 -6 "MyRomName".rom

Thanks, that allowed the update and I see the 8Gb; however, only getting 20 mh (+700 mem / 65% power) on phoenix miner. 

[miner29]

Anyone unlock colorful p104-100?  Tried a few of the firmware listed in this thread but won't flash.  Even the colorful firmware listed on techpowerup won't flash.

I get:  

WARNING: Firmware image PCI Subsystem ID (10DE.1237) does not match adapter PCI subsystem ID (7377.0000)

Any advice is appreciated.

JJ

For my Zotac i use....

1 CMD as admin
2. nvflash64 --protectoff
3. nvflash64 -6 "MyRomName".rom

Thanks, that allowed the update and I see the 8Gb; however, only getting 20 mh (+700 mem / 65% power) on phoenix miner. 

Windows?  If so grab one of the mining linux based OS that you can stick on thumbdrive.  I prefer mmpOS and for 8 gpus or less it wont cost a thing to try and use.  Others are HiveOS, SimpleOS, RaveOS and plenty more im sure i missed.   

Currently getting 27mhs out of mine on mmpos

[jasonjohnson99]

Anyone unlock colorful p104-100?  Tried a few of the firmware listed in this thread but won't flash.  Even the colorful firmware listed on techpowerup won't flash.

I get:  

WARNING: Firmware image PCI Subsystem ID (10DE.1237) does not match adapter PCI subsystem ID (7377.0000)

Any advice is appreciated.

JJ

For my Zotac i use....

1 CMD as admin
2. nvflash64 --protectoff
3. nvflash64 -6 "MyRomName".rom

Thanks, that allowed the update and I see the 8Gb; however, only getting 20 mh (+700 mem / 65% power) on phoenix miner.  

Windows?  If so grab one of the mining linux based OS that you can stick on thumbdrive.  I prefer mmpOS and for 8 gpus or less it wont cost a thing to try and use.  Others are HiveOS, SimpleOS, RaveOS and plenty more im sure i missed.  

Currently getting 27mhs out of mine on mmpos

Yeah I use windows but I always have.  Something doesn't look right when I compare my gpuz against others.  Memory Mhz looks like it's 1/2 of what it should be?

https://imgur.com/3bxyzC3

[bio666]

Anyone unlock colorful p104-100?  Tried a few of the firmware listed in this thread but won't flash.  Even the colorful firmware listed on techpowerup won't flash.

I get:  

WARNING: Firmware image PCI Subsystem ID (10DE.1237) does not match adapter PCI subsystem ID (7377.0000)

Any advice is appreciated.

JJ

For my Zotac i use....

1 CMD as admin
2. nvflash64 --protectoff
3. nvflash64 -6 "MyRomName".rom

Thanks, that allowed the update and I see the 8Gb; however, only getting 20 mh (+700 mem / 65% power) on phoenix miner.  

Windows?  If so grab one of the mining linux based OS that you can stick on thumbdrive.  I prefer mmpOS and for 8 gpus or less it wont cost a thing to try and use.  Others are HiveOS, SimpleOS, RaveOS and plenty more im sure i missed.  

Currently getting 27mhs out of mine on mmpos

Yeah I use windows but I always have.  Something doesn't look right when I compare my gpuz against others.  Memory Mhz looks like it's 1/2 of what it should be?

https://imgur.com/3bxyzC3

I tried many bios before finding the right one for me.. a lot was power capped or have overheating problems
Now mining only ETC I went back to Stock Bios and now i mining at 40+ mh with 120w
But Thanks i will try to linux based OS

[jasonjohnson99]

Anyone unlock colorful p104-100?  Tried a few of the firmware listed in this thread but won't flash.  Even the colorful firmware listed on techpowerup won't flash.

I get:  

WARNING: Firmware image PCI Subsystem ID (10DE.1237) does not match adapter PCI subsystem ID (7377.0000)

Any advice is appreciated.

JJ

For my Zotac i use....

1 CMD as admin
2. nvflash64 --protectoff
3. nvflash64 -6 "MyRomName".rom

Thanks, that allowed the update and I see the 8Gb; however, only getting 20 mh (+700 mem / 65% power) on phoenix miner.  

Windows?  If so grab one of the mining linux based OS that you can stick on thumbdrive.  I prefer mmpOS and for 8 gpus or less it wont cost a thing to try and use.  Others are HiveOS, SimpleOS, RaveOS and plenty more im sure i missed.  

Currently getting 27mhs out of mine on mmpos

Yeah I use windows but I always have.  Something doesn't look right when I compare my gpuz against others.  Memory Mhz looks like it's 1/2 of what it should be?

https://imgur.com/3bxyzC3

I tried many bios before finding the right one for me.. a lot was power capped or have overheating problems
Now mining only ETC I went back to Stock Bios and now i mining at 40+ mh with 120w
But Thanks i will try to linux based OS

Tried a couple more flashes.  @32.5mh now / 120w with the zotac flash so much better.  I'll try the rest to see which is best.

Thanks all for your help.

[bio666]

Hi Guys .. looking in various forums I read about a solution to unlock the 8 gb of ram with a hardware modification on the PCB ...
Precisely by removing only one resistor (r832) ..
Leaving the stock bios unchanged and solving many problems with power & co.
Unfortunately I have not found anything on the Zotac video cards ..
Anyone have more information about it?

[digitalica]

still searching good bios for my zotac p104-100 tryed like all bios around bad result

[bio666]

...me too ... Now I'm using 208828.rom which is the best of all but more instable.. very high current consumption .. low and instable Hashrate...

I am looking for a hardware solution... but I can't find high definition images of the pcb for comparison

[digitalica]

...me too ... Now I'm using 208828.rom which is the best of all but more instable.. very high current consumption .. low and instable Hashrate...

I am looking for a hardware solution... but I can't find high definition images of the pcb for comparison

i guess you still need a modded bios to run 8gb over 4. now i managed to get the card running at 4gb , have to test other 8gb bios but there are a lot of tricky things to do

[digitalica]

https://www.techpowerup.com/vgabios/226423/226423

trying this one now

[digitalica]

https://www.techpowerup.com/vgabios/226423/226423

trying this one now

it gets recognized as 8gb but stil crash at dag generation

[bio666]

With the pcb mod you will use the stock bios  ....

compared with en editor .. 226423.rom is the same of 208828.rom ... just last line change (but maybe is important) i'm using it from 10 day ca but nothing is different.

Always sorry for my english 

[digitalica]

i will try them out, i am getting a memory error, maybe card is broken