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Topic: way to use all 8GB VRAM which is half disabled on P104-100 card - page 2. (Read 4661 times)

jr. member
Activity: 342
Merit: 3
still searching good bios for my zotac p104-100 tryed like all bios around bad result
newbie
Activity: 11
Merit: 0
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?
newbie
Activity: 12
Merit: 0
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.
newbie
Activity: 11
Merit: 0
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
newbie
Activity: 12
Merit: 0
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
full member
Activity: 1275
Merit: 141
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
newbie
Activity: 12
Merit: 0
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. 
newbie
Activity: 11
Merit: 0
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

newbie
Activity: 12
Merit: 0
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
newbie
Activity: 1
Merit: 0
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
newbie
Activity: 29
Merit: 0

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?
newbie
Activity: 11
Merit: 0
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  Embarrassed
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!
newbie
Activity: 1
Merit: 0
anybody got zotac bios?Huh

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
jr. member
Activity: 342
Merit: 3
anybody got zotac bios?Huh
jr. member
Activity: 342
Merit: 3
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 think mod the bios manually can be the best solution, i guess to unlock those 4 gb is not too difficult, if anybody would share some info would be better
newbie
Activity: 2
Merit: 1
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
newbie
Activity: 12
Merit: 0
I flashed my ASUS p104-100 4GB with NVIDIA P104-100 8GB bios from techpowerup. There was a minor device subsystem id mismatch which I overwrote with -6 on the command line, rebooted the machine, and the card is fully unlocked to 8GB with absolutely no issues. Overclocked ram to 750 and getting 40MH/S on ETH.

https://i.imgur.com/GzBgNSa.png
newbie
Activity: 72
Merit: 0
Nice, Good job! Cool  MSI P104-100 works steady 42.8 MH/s. No improvement in speed as before.


P104-100 default 4GB Memory: https://i.imgur.com/4Wr8xqJ.jpg

P104-100 unlock 8GB Memory:  https://i.imgur.com/sgvKc9a.jpg

Claymore read P104-100 8GB Smiley https://i.imgur.com/68K2ljv.png

Claymore 42.8 MH/s Smiley https://i.imgur.com/CwLS6OR.jpg



Does anyone know, how is it possible to unlock 2560 CUDA cores?

Spec for P104 - Shader Units:  https://i.imgur.com/NROFi4X.jpg

I found this information, that someone wrote:

- 8GB of GDDR5X of which half are disabled via BIOS

- PCI-E 1.1 X4 enforced with BIOS, true hardware form PCI-E 3.0 X16

- Display engine is disabled with BIOS, the I / O ports are actually mechanically functional

- 1920 CUDA cores instead of the default 2560  (possibly all 2560 on board)


Thanks darkneorus!


Hello,

 What driver version did you use?
newbie
Activity: 15
Merit: 0
https://www.techpowerup.com/vgabios/214569/214569

I flashed this BIOS to the Gigabyte board. It was a success, I could mine Cortex with it.

There is a common (AFAIK) problem with fans max revs being about 75% of the stock BIOS and Afterburner does not report memory consumption correctly (always 8192 MB used).
newbie
Activity: 2
Merit: 0
Sorry for the bit irrelevant post but i just found  2x P106-100 6gb mining cards for 135$ is that a good price ?

The card is this one:



https://www.gearbest.com/graphics-video-cards/pp_009315314835.html
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