Ray Tracing on M18xR2 - RTX 3000 MXM Upgrade!

[ssj92]

1 hour ago, SuperMG3 said:

But why it causes freeze? Because of being a GeForce card?

It's the vBIOS. Something with vBIOS causes issues. 

[SuperMG3]

3 hours ago, ssj92 said:

It's the vBIOS. Something with vBIOS causes issues. 

Okay. Maybe a Dell vbios would work on the 980M. On the 3080 it won't I guess.

[panda_zzz]

On 3/17/2025 at 9:37 AM, ssj92 said:

All DX12 titles are stuck at 60fps for some reason on 3080. To get past this, overclock the display to 75-80hz. 

I think the problem here is not the display but the fact that intel optimus is used - there are limits to iGPU. If intel optimus was more powerful, you might have more frames. I've seen this on an intel 4600 vs iris 5200 comparison

[SuperMG3]

2 hours ago, panda_zzz said:

I think the problem here is not the display but the fact that intel optimus is used - there are limits to iGPU. If intel optimus was more powerful, you might have more frames. I've seen this on an intel 4600 vs iris 5200 comparison

But overclocking to 75Hz, could make you go from 60 to 75, that's what he meant. 

 

Intel HD 4000/4600 are performing the same in terms of Optimus.

[panda_zzz]

3 hours ago, SuperMG3 said:

Intel HD 4000/4600 are performing the same in terms of Optimus.

work the same way, but the limit is different, so it is likely that they can draw different numbers of frames.

[ssj92]

23 hours ago, panda_zzz said:

I think the problem here is not the display but the fact that intel optimus is used - there are limits to iGPU. If intel optimus was more powerful, you might have more frames. I've seen this on an intel 4600 vs iris 5200 comparison

The weird issue with SG mode on older laptops such as M18xR1 (HD 3000 iGPU) is there's no DX12 support on titles even with a GPU such as RTX 5000, which supports DX12. 

 

Even more interesting is, Optimus only works with older drivers such as 419.XX. All newer drivers the nVidia GPU is not being utilized even with registry mod, 

[panda_zzz]

36 minutes ago, ssj92 said:

Even more interesting is, Optimus only works with older drivers such as 419.XX. All newer drivers the nVidia GPU is not being utilized even with registry mod, 

what laptop do you have this on? because i have optimus working quite well on relatively fresh drivers on m17x r4 and m4800 (something around 550 version i think).

[ssj92]

1 hour ago, panda_zzz said:

what laptop do you have this on? because i have optimus working quite well on relatively fresh drivers on m17x r4 and m4800 (something around 550 version i think).

M18xR1. Speicfically sandy bridge intel hd 3000 iGPU. I think Precision M6600 has same issues. 

[panda_zzz]

57 minutes ago, ssj92 said:

M18xR1. Speicfically sandy bridge intel hd 3000 iGPU. I think Precision M6600 has same issues. 

Maybe, although it may be a problem with the graphics card itself. or the combination of the laptop architecture and the graphics card driver.
for example on my m15x with gtx970m and windows 10 nvidia drivers newer than 390 I think did not want to work.

[SuperMG3]

Also. I found that 16GB DDR3 SODIMM sticks exist. What would happen if we do 4x16 in the M18X R2? Will it boot? Or is the chipset inside is limited to 32 only?

[panda_zzz]

12 hours ago, SuperMG3 said:

What would happen if we do 4x16 in the M18X R2?

the laptop won't boot up properly. 16 gigabyte ddr3 so-dimm modules do not work on 3-5 generation intel processors

[SuperMG3]

53 minutes ago, panda_zzz said:

the laptop won't boot up properly. 16 gigabyte ddr3 so-dimm modules do not work on 3-5 generation intel processors

Okay. So the limit is 32GB then?

 

What about X58/X79 laptops? 16GB Sodimm accepted? Because my Precision T5500 has 16GB dimms times 6 (X5520 chipset something)

[panda_zzz]

4 hours ago, SuperMG3 said:

Okay. So the limit is 32GB then?

The general case since the 1st generation of Intel mobile i-processors is 8 gigabytes per one slot for a memory module. the differences are in the maximum frequencies of this memory. if the slots are soldered 4, then yes maximum 32 gigabytes.
but there are quite a lot of pitfalls from manufacturers, so I described only ideal conditions.

[SuperMG3]

48 minutes ago, panda_zzz said:

The general case since the 1st generation of Intel mobile i-processors is 8 gigabytes per one slot for a memory module. the differences are in the maximum frequencies of this memory. if the slots are soldered 4, then yes maximum 32 gigabytes.
but there are quite a lot of pitfalls from manufacturers, so I described only ideal conditions.

My laptop recognizes 6 RAM slots but only 3 are present. It's DDR3, triple channel. I can somehow get 32-48GB to work on this X58 laptop (first gen i7 980X). 16+8+8 or 16+16+16.

 

No one tried it tho since the dimms go for 60-120€

[panda_zzz]

2 hours ago, SuperMG3 said:

No one tried it tho since the dimms go for 60-120€

even taking into account that your laptop has a desktop chipset it doesn't change much - the same 8 gigabytes per channel, in case of three-channel mode - 24 gigabytes maximum.
https://www.intel.com/content/www/us/en/products/sku/47932/intel-core-i7980x-processor-extreme-edition-12m-cache-3-33-ghz-6-40-gts-intel-qpi/specifications.html
if you want you can experiment, but as for me it's a waste of money and bios will not be able to cope with 16 gigabyte modules, just like later bios for 3rd and 4th generation.

[SuperMG3]

11 minutes ago, panda_zzz said:

even taking into account that your laptop has a desktop chipset it doesn't change much - the same 8 gigabytes per channel, in case of three-channel mode - 24 gigabytes maximum.
https://www.intel.com/content/www/us/en/products/sku/47932/intel-core-i7980x-processor-extreme-edition-12m-cache-3-33-ghz-6-40-gts-intel-qpi/specifications.html
if you want you can experiment, but as for me it's a waste of money and bios will not be able to cope with 16 gigabyte modules, just like later bios for 3rd and 4th generation.

I said i7 980X because it's similar to the Xeon W3680. I have a Xeon.

[SuperMG3]

5 minutes ago, SuperMG3 said:

I said i7 980X because it's similar to the Xeon W3680. I have a Xeon.

https://forums.macrumors.com/threads/max-ram-in-2009-12-single-core-is-actually-56gb-w-w-xeon-and-64gb-w-x.1732968/

 

I guess 48GB is the max for me for the same CPU. 

[SuperMG3]

I sent my RTX 3080 MXM to repair. I paid for the shipping. I'll probably wait 3-4 weeks until it's on my hand again bruh...

 

I also found a very cheap 16GB SODIMM DDR3L stick for 28€ in China (how) and also 2x8GB DDR3L for 14€...

[panda_zzz]

47 minutes ago, SuperMG3 said:

I guess 48GB is the max for me for the same CPU. 

If you have 6 slots soldered into your laptop, it could be 48, but I think you said 3.

 

 

[SuperMG3]

40 minutes ago, panda_zzz said:

If you have 6 slots soldered into your laptop, it could be 48, but I think you said 3.

 

 

The system detects 6 slots on CPU-Z but it only has 3 physical. I also sent a link about the W3680/W3690 CPUs supporting up to 48/56GB. Sad that the Alienware M18X R2 doesn't even support 48GB...

[panda_zzz]

4 hours ago, SuperMG3 said:

The system detects 6 slots on CPU-Z but it only has 3 physical

then there's no point in talking about 48 gigabytes

 

4 hours ago, SuperMG3 said:

Sad that the Alienware M18X R2 doesn't even support 48GB...

it's a CPU+chipset problem.
and actually 32 gigabytes is still enough

[ssj92]

On 3/19/2025 at 3:45 PM, panda_zzz said:

Maybe, although it may be a problem with the graphics card itself. or the combination of the laptop architecture and the graphics card driver.
for example on my m15x with gtx970m and windows 10 nvidia drivers newer than 390 I think did not want to work.

It's definitely a driver issue. Before 419.xx all gpus I tested work fine, but no dx12 mode. 

 

My m15x has 980M with latest driver. 

[SuperMG3]

22 minutes ago, ssj92 said:

It's definitely a driver issue. Before 419.xx all gpus I tested work fine, but no dx12 mode. 

 

My m15x has 980M with latest driver. 

What if you use an other GPU instead of the intel HD 4000? Like Kepler based one for slot 1 and 980m for the second slot?

[ssj92]

39 minutes ago, SuperMG3 said:

What if you use an other GPU instead of the intel HD 4000? Like Kepler based one for slot 1 and 980m for the second slot?

I'm referring to ONLY using Intel HD 3000 (Sandy Bridge) in SG mode 

 

HD 4000+ works fine

Dual GPUs in PEG (mix/match) works fine 

[SuperMG3]

10 minutes ago, ssj92 said:

I'm referring to ONLY using Intel HD 3000 (Sandy Bridge) in SG mode 

 

HD 4000+ works fine

Dual GPUs in PEG (mix/match) works fine 

Oh yeah my bad. On my previous M17X R4 I was sometimes limited by 60fps on dx12 using RTX 3000 MXM