Precision M6800 questions and upgrades

[DynamiteZerg]

I'm uploading the images I got from the seller. Not sure what brand this is but it is a 150W card. I will ask the seller the manufacturer's name and take clearer pictures.

 

Where are you selling the cable mod? @SuperMG

 

Update: Seller just confirmed it is made by ZRT! So now we can get the vbios!

 

[SuperMG]

11 minutes ago, DynamiteZerg said:

I'm uploading the images I got from the seller. Not sure what brand this is but it is a 150W card. I will ask the seller the manufacturer's name and take clearer pictures.

 

Where are you selling the cable mod? @SuperMG

 

Update: Seller just confirmed it is made by ZRT! So now we can get the vbios!

 

IT'S ZRT OMG. Please GET THE VBIOSES!! I want to flash on 4080 and 4090 so we can avoid the EDID override method!!

 

Same design as ZRT 100%, not x-vsion, the BIOS chip is in a different place 

[DynamiteZerg]

10 minutes ago, SuperMG said:

IT'S ZRT OMG. Please GET THE VBIOSES!! I want to flash on 4080 and 4090 so we can avoid the EDID override method!!

 

Same design as ZRT 100%, not x-vsion, the BIOS chip is in a different place 

Looks like we have a winner on our hands! I'll ask the seller if he can help to extract the vbios from the card first and shared it with me.

[SuperMG]

26 minutes ago, DynamiteZerg said:

Looks like we have a winner on our hands! I'll ask the seller if he can help to extract the vbios from the card first and shared it with me.

The seller needs to use GPU-Z and extract from there. He can do it for the 4080 too. It'll generate a download link from techpowerup

 

Because ZRT and other people ignored me for 5 months. I've been trying to get their VBIOSes for 5 months... I just hope the images you got are indeed the right GPU and not the x-vsion one.

 

Do you have the VBIOS version number or a GPU-Z screenshot?

 

For myself I need the 4080 150W VBIOS and 4090 150W VBIOS. But if the seller could dump 135W Max-Q versions why not, everyone will be happy.

Edited 13 hours ago by SuperMG

[SuperMG]

On 3/20/2026 at 2:16 AM, Annihilator said:

 

DIY for Dell Precision M6800 GPU heatsink | eBay

This is the better version if you're planning to use 150W cards (with PTM7950) + better designed CPU heatsink like the Alienware 17 R1 Ranger design, so better overclocking for the CPU right?

 

Mine will arrive this week, maybe on Friday? It means I'll have a spare "130W" 3 heatpipes that has one badly curved heatpipe. If someone wants it, I can list it for 45€ and then you can modify the heatpipes if you want.

 

@DynamiteZergI sell them on ebay. This is version 1. It allows backlight enable and makes the internal display work again. The newer RTX cards don't have the backlight pins connected from the core.

 

Edited 13 hours ago by SuperMG

[JadeRover]

5 hours ago, SuperMG said:

This is the better version if you're planning to use 150W cards (with PTM7950) + better designed CPU heatsink like the Alienware 17 R1 Ranger design, so better overclocking for the CPU right?

 

Did you managed to get CPU overclocking working ?

 

Also memory overclocking should be possible on m6800. Looking at the IFR extract, with setup_var from grub you can change related profiles to enable XMP on you ram modules. You can also write custom XMP profiles to your non XMP ram sticks, up to 2400Mhz DDR3 if you are feeling lucky ! Writing to DDR3 spd is a lot easier than DDR4 spd btw.

 

Here is a link to the guides and tools + proof that someone got 2400Mhz working on i7-4810mq

 

[SuperMG]

4 minutes ago, JadeRover said:

 

Did you managed to get CPU overclocking working ?

 

Also memory overclocking should be possible on m6800. Looking at the IFR extract, with setup_var from grub you can change related profiles to enable XMP on you ram modules. You can also write custom XMP profiles to your non XMP ram sticks, up to 2400Mhz DDR3 if you are feeling lucky ! Writing to DDR3 spd is a lot easier than DDR4 spd btw.

 

Here is a link to the guides and tools + proof that someone got 2400Mhz working on i7-4810mq

 

Can't get 4GHz on all cores so no. I'll test the new heatsink soon

[Annihilator]

1 hour ago, SuperMG said:

Can't get 4GHz on all cores so no. I'll test the new heatsink soon

 

running into the 61W TDP limit from the board?

[SuperMG]

33 minutes ago, Annihilator said:

 

running into the 61W TDP limit from the board?

No, running into 45W TDP limit in CPU-Z. 61W is good for me. Using 240W PSU. Getting "EDP CURRENT" error in throttleStop.

 

[Annihilator]

14 minutes ago, SuperMG said:

No, running into 45W TDP limit in CPU-Z. 61W is good for me. Using 240W PSU. Getting "EDP CURRENT" error in throttleStop.

 

 

yeah EDP is set by the mainboard... but the limit in the M6800 should be 61W for normal... maybe a dead VRM? 

[SuperMG]

8 minutes ago, Annihilator said:

 

yeah EDP is set by the mainboard... but the limit in the M6800 should be 61W for normal... maybe a dead VRM? 

I get 56W max in throttleStop benchmark so I don't know , no bsod

[Annihilator]

15 minutes ago, SuperMG said:

I get 56W max in throttleStop benchmark so I don't know , no bsod

 

yeah, when VRM temps too high will throttle down the EDP, on the 7720 the VRMs seems to be well cooled, no EDP throttling but still not summer here, pretty sure will happen when temps goin up.