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Author Topic: way to use all 8GB VRAM which is half disabled on P104-100 card  (Read 4659 times)
Atrixis
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March 29, 2019, 03:10:54 PM
 #21

at the bottom of the page we read

http://www.inno3d.com/products_detail.php?refid=360
cloudsyt
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April 08, 2019, 02:43:36 PM
 #22

Anyone knows where did this bios(208828.rom) come from? I mean it is leaked from nvidia or hacked by some enthusiast?
dfish987
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May 21, 2019, 05:37:59 AM
 #23

You guys should thank me i spent the last two days try to find this bios managed to find a 8 GB bios on tech power up can confirm it installed on my EVGA P104-100 4gb and made it 8GB and everything works fine......the Bios you provided worked for me but my Fans were constantly on 85% or more this BIOS fans work FINE here it is https://www.techpowerup.com/vgabios/210804/210804
darkneorus
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May 21, 2019, 05:45:28 AM
 #24

You guys should thank me i spent the last two days try to find this bios managed to find a 8 GB bios on tech power up can confirm it installed on my EVGA P104-100 4gb and made it 8GB and everything works fine......the Bios you provided worked for me but my Fans were constantly on 85% or more this BIOS fans work FINE here it is https://www.techpowerup.com/vgabios/210804/210804
yup, I've uploaded it to techpowerup. tried it for two days.
at first I thought that all is working fine, but then I've noticed that all reflashed GPUs are abnormally hot, even while mining eth. flashed back the stock vbios, got 10+ degrees C lower temps.
dfish987
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May 21, 2019, 05:55:35 AM
 #25

oh man you uploaded that bios...?? you are the man or do you mean the other one on this post if so give this one a try man it works great just like stock just with 8GB
pr3fix
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June 02, 2019, 12:04:43 AM
Last edit: June 02, 2019, 10:52:37 PM by pr3fix
 #26

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!
percy_tc
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June 02, 2019, 05:25:12 AM
 #27

Whats your settings with that MSI?

Does anyone tried it on ASUS (despite the fact that op says its not work)?
pr3fix
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June 02, 2019, 01:44:46 PM
Last edit: June 04, 2019, 11:28:46 PM by pr3fix
 #28

To get 42.8 - 43+ MH/s, I did the following:


1. Download the latest Claymore v14.6 -> https://mega.nz/#F!O4YA2JgD!n2b4iSHQDruEsYUvTQP5_w

2. Set up .bat file -> EthDcrMiner64.exe -epool IP_POOL:PORT -ewal ETH_WALLET.rig1 -epsw x -mode 1 -strap 4 -sintensity 50
(sintensity let it be in the range from 1 to 100) find that is stable.

"Strap 4" is the most important here, because it reduces low memory latency.

3. In MSI AfterBurner, sets the memory clock of 730+ to how much it can be stable. Power limit can be reduced to a voltage of about 900mv.


This card gives 43.2 MH/s at 800 OC memory.

https://i.imgur.com/ZoimNYj.jpg


Please, let me know if it works 8GB on the Asus P104-100. I really need this information.

You can try some of these bioses:

https://www.techpowerup.com/vgabios/?architecture=Uploads&manufacturer=&model=P104-100&interface=&memType=&memSize=&since=
percy_tc
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June 10, 2019, 08:05:59 AM
 #29

I was sucessfully upgraded ASUS P104-100 to 8GB.
BZiGER
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June 13, 2019, 06:55:37 PM
 #30

what bios version you have used i have one rig with 6xAsus p104
zombie007_new
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June 26, 2019, 07:01:30 PM
 #31

what bios version you have used i have one rig with 6xAsus p104

iam interested too Cheesy
percy_tc
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June 26, 2019, 07:47:28 PM
 #32

what bios version you have used i have one rig with 6xAsus p104

iam interested too Cheesy

This one: https://drive.google.com/open?id=1TTjWYyKQtTjMKNDJSmLLQd-01W6eyg2h
kaantezel
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June 27, 2019, 08:57:48 AM
 #33

Hey guys? No one to apply bios on gigabyte cards? Is there a constraint or fear or bricking the card?

KT
zombie007_new
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June 27, 2019, 02:44:38 PM
 #34


Thank you, its working.

Clock settings for cuckaroo29 ?
se2ingu
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July 09, 2019, 02:23:47 PM
 #35

p104-100 basically 1080 hashrates after flashed to 8gb?
Xazax310
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July 09, 2019, 04:47:57 PM
 #36

p104-100 basically 1080 hashrates after flashed to 8gb?

Negative, it just allows more memory to be used. It's still a wierd mix of 1070 shaders and 1080's GDDR5x
ctp9
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July 19, 2019, 10:48:08 AM
 #37

I'm here to report that - even though the cards flash successfully with a variety of ROMs found >HERE< - they do not function correctly afterwards. Some become too hot, some report vastly inaccurate hashrate readouts, others are stuck on 30W power limit, and others have the fan settings stuck on some value that cannot be adjusted.

Ultimately, they were all limited by power (down to 30W), and had issues with hashrate reporting.

My P104 GPUs are by INNO3D.
d1mm0k
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July 19, 2019, 02:05:59 PM
 #38

Does anyone have a P102 bios with unlocked memory?
ctp9
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July 20, 2019, 02:42:33 AM
 #39

Does anyone have a P102 bios with unlocked memory?

Even if someone does... it will not necessarily be compatible with your particular GPUs. The extra RAM may get unlocked, but you'll have various issues with cooling, clock speeds, power limitations, etc.
d1mm0k
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July 20, 2019, 06:05:45 PM
 #40

Does anyone have a P102 bios with unlocked memory?

Even if someone does... it will not necessarily be compatible with your particular GPUs. The extra RAM may get unlocked, but you'll have various issues with cooling, clock speeds, power limitations, etc.

Aye aye captain! Still it doesn't mean it's not worth tinkering with.
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