Running 2070 E-GPU with 4090?

[Iwantcookies]

Hi there, 

To begin with, I am not a technical guy. 

I have a flight simulator setup which I am trying to improve. 

With this setup currently I am using 6 monitors which I do hope to increase with additional 3. 

3 of those are running on Graphics adapter USB 3.0 to HDMI, which from my understanding has their own mini GPU, the resolution is 1440p 

My main monitor is 4k and additionally have 2, 5.5 inch 2k screens attached . The 5.5 inch displays are LS055R1SX04 which uses MIPI controller board connection and does not work with those USB to HDMI active adaptors. 

When I connect it the display just goes black. 

 

I was thinking, is it possible to set my old 2070 as a E-GPU and run it completely independent from the 4090 so it wont effect its performance and connect those screens to the 2070? 

 

 

Thank you 

[jaslion]

Why egpu? You'd need thunderbolt for that.

 

The whole 2 gpu's for extra screens can work fine no problem there.

 

But if you have 2 16x pcie slots then just plug the cards in internally. Saves mountains of hassle and trouble.

 

 

[Iwantcookies]

3 hours ago, jaslion said:

Why egpu? You'd need thunderbolt for that.

 

The whole 2 gpu's for extra screens can work fine no problem there.

 

But if you have 2 16x pcie slots then just plug the cards in internally. Saves mountains of hassle and trouble.

 

 

Well, then How can i stop the 2070 from bringing down the performance of 4090? 

I thought that would be the case if I mount the 2070 on the motherboard 

[Iwantcookies]

Darn it, it seems I cant delete my comment here 

[jaslion]

1 hour ago, Iwantcookies said:

Well, then How can i stop the 2070 from bringing down the performance of 4090? 

I thought that would be the case if I mount the 2070 on the motherboard 

What are you systems specs?

 

Regardless of what you do you only have a limited amount of pcie lanes. Thunderbolt takes up to 4 already so you are losing lanes regardless.

 

You can configure your slots to run in x4 leaving possibly a full x16 config for the 4090.

 

If you have a pcie 4.0 board then even an x8 link for a 4090 is fine barely a difference in performancr between x8 and x16

[Iwantcookies]

18 minutes ago, jaslion said:

What are you systems specs?

 

Regardless of what you do you only have a limited amount of pcie lanes. Thunderbolt takes up to 4 already so you are losing lanes regardless.

 

You can configure your slots to run in x4 leaving possibly a full x16 config for the 4090.

 

If you have a pcie 4.0 board then even an x8 link for a 4090 is fine barely a difference in performancr between x8 and x16

Asus rog crosshair dark hero viii, 

Ryzen 9 5950x

Kingston FURY Beast DDR4 3600MHz 64gb 

Asus tuf 4090 oc
Thank you for your help so far, if you could please let me know how adding an old 2070 super would effect my system. 

I got a 1000W PSU for 4090, and will get another 750 for the 2070 super. 

 

This is a screenshot from my motherboard's manual, 

what do you think?

 

[jaslion]

Why are you going dual psu?

 

What 1000w psu is it? Anything decent ca  easilt handle the 2070 too.

 

A 2070 is VERY efficient. Doesnt need much power at all. Your entire system will rarely cross 750-800w during 100% laod on all with a 2070. That wont happen with what you are doing ever.

 

Your board will do x16 and x4.Just plug the 2070 in and configure it to x4. If you have the space put it in a slot that gives the 4090 the most room for air.

 

 

 

 

[Iwantcookies]

Asus currnt recommendation for 4090 is 1000w, I have 30 usb, 12, 4 pin fans (nactua 3000rpm) running the system as it is, I think my system can't handle more just had this 750w laying around thought to use it. 

I think the main issue would be the clearance for 2070 to get some air circulation. 

You are amazing man thank you 

[jaslion]

21 minutes ago, Iwantcookies said:

Asus currnt recommendation for 4090 is 1000w, I have 30 usb, 12, 4 pin fans (nactua 3000rpm) running the system as it is, I think my system can't handle more just had this 750w laying around thought to use it. 

I think the main issue would be the clearance for 2070 to get some air circulation. 

You are amazing man thank you 

So a 4090 can max consume 450w.

 

Its fine. Dont do dual psu.

 

What psu is the 1000w? Whats the model?

 

Like yes those usb ports will increase useage and stuff but there is a limit to that too.

 

Also you can get a simple watt meter and plug it between your pc and socket. That will tell you what the limit is. I highly doubt its an issue.

 

The asus card is overbuilt cooling wise so even with worse clearance it should do well

[Iwantcookies]

13 minutes ago, jaslion said:

So a 4090 can max consume 450w.

 

Its fine. Dont do dual psu.

 

What psu is the 1000w? Whats the model?

 

Like yes those usb ports will increase useage and stuff but there is a limit to that too.

 

Also you can get a simple watt meter and plug it between your pc and socket. That will tell you what the limit is. I highly doubt its an issue.

 

The asus card is overbuilt cooling wise so even with worse clearance it should do well

As I said I'm not technical, 

Do you mind me asking what's wrong with having a dual PSU? (Curious to know) 

 

I have RM1000i bought it 7 years ago.

That's a good idea, I will use a watt meter.

 

I'm planning to buy a new PSU ATX 3.0 but as you know those are not out yet in  full production phase 

 

[jaslion]

30 minutes ago, Iwantcookies said:

As I said I'm not technical, 

Do you mind me asking what's wrong with having a dual PSU? (Curious to know) 

 

I have RM1000i bought it 7 years ago.

That's a good idea, I will use a watt meter.

 

I'm planning to buy a new PSU ATX 3.0 but as you know those are not out yet in  full production phase 

 

Yeah its overbuilt that thing can be pushed to 1200w worst case.

 

Dual psu for a gpu can cause inconsistencies with power delivery and instability

[Iwantcookies]

Well, I just tested the case the graphic card doesn't fit inside. I need to use a riser cable and put the 2070 in a small form case with another psu, would that be a problem in long term? 

I need to use a riser cable like 60cm long, 4090 is huge can't fit the 2070 under it. 

 

What do you think?

 

The only pcie which is available is the last one and the 2070 won't go in due to audio and fron io usb

 

I know what you said about the power supply but it seems I need to grab a second case just for the 2070 and be easier if the power supply is inside that? I don't know what else to do 

 

[ds5018]

what is the use of 2070? more monitors?

[IkeaGnome]

Would the 2070 fit in front of the 4090 vertically mounted?

[Iwantcookies]

15 minutes ago, IkeaGnome said:

Would the 2070 fit in front of the 4090 vertically mounted?

I tried, it won't fit in even vertically, 4090 is simply too big

[IkeaGnome]

2 minutes ago, Iwantcookies said:

I tried, it won't fit in even vertically, 4090 is simply too big

What case do you have? Might be able to get a little weird with it.

[Iwantcookies]

28 minutes ago, IkeaGnome said:

What case do you have? Might be able to get a little weird with it.

Corsair 7000D airflow it's not a small case but 4090 makes everything look small 

[IkeaGnome]

27 minutes ago, Iwantcookies said:

Corsair 7000D airflow it's not a small case but 4090 makes everything look small 

What about vertically mounting the 2070 with a riser? You'd have to get creative with the video cables, but it's an option. Remove a 120mm fan and mount it towards the front of the case.

https://www.mnpctech.com/products/mnpctech-stage-2-vertical-video-card-gpu-mounting-bracket

https://www.mnpctech.com/collections/gpu-supports-vertical-gpu-brackets/products/mnpctech-stage-1-vertical-video-card-gpu-mounting-bracket

If you've got access to a 3d printer

https://www.thingiverse.com/thing:2804306/files

[Iwantcookies]

52 minutes ago, IkeaGnome said:

What about vertically mounting the 2070 with a riser? You'd have to get creative with the video cables, but it's an option. Remove a 120mm fan and mount it towards the front of the case.

https://www.mnpctech.com/products/mnpctech-stage-2-vertical-video-card-gpu-mounting-bracket

https://www.mnpctech.com/collections/gpu-supports-vertical-gpu-brackets/products/mnpctech-stage-1-vertical-video-card-gpu-mounting-bracket

If you've got access to a 3d printer

https://www.thingiverse.com/thing:2804306/files

Dude you are amazing, thank you  

 

But sadly won't work for me, have a look.

 

If I do what you suggested it will totally disturb the airflow. 

 

If i get a Riser cable 600mm long, and put one power cable out of my case from behind buy a second hand small case. Do you think that could work? 

 

4090 is so big I can't put anything in there 

[IkeaGnome]

34 minutes ago, Iwantcookies said:

Dude you are amazing, thank you  

 

But sadly won't work for me, have a look.

 

If I do what you suggested it will totally disturb the airflow. 

 

If i get a Riser cable 600mm long, and put one power cable out of my case from behind buy a second hand small case. Do you think that could work? 

 

4090 is so big I can't put anything in there 

So you can run a dual power supply system. If it's done "right" it won't cause as many issues as people are thinking it will. It won't always work correctly, but it can be made to work. If you went that route, you'd also want to get something like this and make the 2 wire pigtail long enough to reach to the other case. Run those wires with the riser cable.

https://www.newegg.com/gulfe-131106131282/p/35Y-006W-00004

 

It looks like it'd be a tight fit, but the 2070 might fit sideways here and not mess with the overall airflow too bad if you put it "backwards." Then it would intake from that plate that has fans behind it and push air into the case. If the 2070 is only being used for display out then it shouldn't be that hot at all.

Spoiler

Is there anywhere that it will fit in the case? Might be able to find something to make it work. Potentially above the NH-D15? Might be able to get something to work by removing a top fan and using a radiator pump bracket. 

 

Edit: Just found a couple potential brackets for mounting above the D15.

https://www.amazon.com/EKWB-EK-Loop-Angled-Bracket-120mm/dp/B08D2YVWP7/ref=sr_1_28?crid=P2FFQ7JTRJ0D&keywords=120mm+water+pump+bracket&qid=1671481674&s=electronics&sprefix=120mm+water+pump+bracket%2Celectronics%2C210&sr=1-28

https://www.amazon.com/dp/B003U3TP9G/ref=sspa_dk_detail_2?psc=1&pd_rd_i=B003U3TP9G&pd_rd_w=DAT1R&content-id=amzn1.sym.dd2c6db7-6626-466d-bf04-9570e69a7df0&pf_rd_p=dd2c6db7-6626-466d-bf04-9570e69a7df0&pf_rd_r=SVT119NQFGCA66GVZCDB&pd_rd_wg=21UDQ&pd_rd_r=d31ed376-d63f-4401-8073-479da972dfd6&s=electronics&sp_csd=d2lkZ2V0TmFtZT1zcF9kZXRhaWxfdGhlbWF0aWM&smid=A3GO5VFCNOM5I7&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEySkFCMlVDRjJONDExJmVuY3J5cHRlZElkPUEwNzIwMTE0MlE3RjhYQlc3OTNVMSZlbmNyeXB0ZWRBZElkPUEwMzQ5MjE4MTIyU1RJSlZPOUpCRyZ3aWRnZXROYW1lPXNwX2RldGFpbF90aGVtYXRpYyZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=

[-rascal-]

@Iwantcookiesdo you NEED that 'UpHere' GPU support brace?

It is just for looks? What is it supporting?

 

The top PCI-E X16 slot (where your RTX 4090 is installed into) and the second PCI-E X16 slot should be spaced apart enough to slot a RTX 2070 into there.

The bottom PCI-E X16 slot runs at X4 electrically...

[Iwantcookies]

14 hours ago, IkeaGnome said:

So you can run a dual power supply system. If it's done "right" it won't cause as many issues as people are thinking it will. It won't always work correctly, but it can be made to work. If you went that route, you'd also want to get something like this and make the 2 wire pigtail long enough to reach to the other case. Run those wires with the riser cable.

https://www.newegg.com/gulfe-131106131282/p/35Y-006W-00004

 

It looks like it'd be a tight fit, but the 2070 might fit sideways here and not mess with the overall airflow too bad if you put it "backwards." Then it would intake from that plate that has fans behind it and push air into the case. If the 2070 is only being used for display out then it shouldn't be that hot at all.

  Reveal hidden contents

Is there anywhere that it will fit in the case? Might be able to find something to make it work. Potentially above the NH-D15? Might be able to get something to work by removing a top fan and using a radiator pump bracket. 

 

Edit: Just found a couple potential brackets for mounting above the D15.

https://www.amazon.com/EKWB-EK-Loop-Angled-Bracket-120mm/dp/B08D2YVWP7/ref=sr_1_28?crid=P2FFQ7JTRJ0D&keywords=120mm+water+pump+bracket&qid=1671481674&s=electronics&sprefix=120mm+water+pump+bracket%2Celectronics%2C210&sr=1-28

https://www.amazon.com/dp/B003U3TP9G/ref=sspa_dk_detail_2?psc=1&pd_rd_i=B003U3TP9G&pd_rd_w=DAT1R&content-id=amzn1.sym.dd2c6db7-6626-466d-bf04-9570e69a7df0&pf_rd_p=dd2c6db7-6626-466d-bf04-9570e69a7df0&pf_rd_r=SVT119NQFGCA66GVZCDB&pd_rd_wg=21UDQ&pd_rd_r=d31ed376-d63f-4401-8073-479da972dfd6&s=electronics&sp_csd=d2lkZ2V0TmFtZT1zcF9kZXRhaWxfdGhlbWF0aWM&smid=A3GO5VFCNOM5I7&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEySkFCMlVDRjJONDExJmVuY3J5cHRlZElkPUEwNzIwMTE0MlE3RjhYQlc3OTNVMSZlbmNyeXB0ZWRBZElkPUEwMzQ5MjE4MTIyU1RJSlZPOUpCRyZ3aWRnZXROYW1lPXNwX2RldGFpbF90aGVtYXRpYyZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=

 

14 hours ago, IkeaGnome said:

So you can run a dual power supply system. If it's done "right" it won't cause as many issues as people are thinking it will. It won't always work correctly, but it can be made to work. If you went that route, you'd also want to get something like this and make the 2 wire pigtail long enough to reach to the other case. Run those wires with the riser cable.

https://www.newegg.com/gulfe-131106131282/p/35Y-006W-00004

 

It looks like it'd be a tight fit, but the 2070 might fit sideways here and not mess with the overall airflow too bad if you put it "backwards." Then it would intake from that plate that has fans behind it and push air into the case. If the 2070 is only being used for display out then it shouldn't be that hot at all.

  Reveal hidden contents

Is there anywhere that it will fit in the case? Might be able to find something to make it work. Potentially above the NH-D15? Might be able to get something to work by removing a top fan and using a radiator pump bracket. 

 

Edit: Just found a couple potential brackets for mounting above the D15.

https://www.amazon.com/EKWB-EK-Loop-Angled-Bracket-120mm/dp/B08D2YVWP7/ref=sr_1_28?crid=P2FFQ7JTRJ0D&keywords=120mm+water+pump+bracket&qid=1671481674&s=electronics&sprefix=120mm+water+pump+bracket%2Celectronics%2C210&sr=1-28

https://www.amazon.com/dp/B003U3TP9G/ref=sspa_dk_detail_2?psc=1&pd_rd_i=B003U3TP9G&pd_rd_w=DAT1R&content-id=amzn1.sym.dd2c6db7-6626-466d-bf04-9570e69a7df0&pf_rd_p=dd2c6db7-6626-466d-bf04-9570e69a7df0&pf_rd_r=SVT119NQFGCA66GVZCDB&pd_rd_wg=21UDQ&pd_rd_r=d31ed376-d63f-4401-8073-479da972dfd6&s=electronics&sp_csd=d2lkZ2V0TmFtZT1zcF9kZXRhaWxfdGhlbWF0aWM&smid=A3GO5VFCNOM5I7&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEySkFCMlVDRjJONDExJmVuY3J5cHRlZElkPUEwNzIwMTE0MlE3RjhYQlc3OTNVMSZlbmNyeXB0ZWRBZElkPUEwMzQ5MjE4MTIyU1RJSlZPOUpCRyZ3aWRnZXROYW1lPXNwX2RldGFpbF90aGVtYXRpYyZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=

You are really amazing; thank you for your hard work 
Those are great options but won't suit me as It would block my access to the HDMI input on 2070. 
However, I managed to mount 2070 inside the case, and I had to remove the USB 2.0 header connector as it is impossible to do the USB 2.0 header there. This is rather important to me but perhaps an easier task to fix rather than trying to figure out how to mount 2070. 
If you don't mind me asking a few more questions from you

 

1-can I get a USB hub (Powered) without any latency? Perhaps even a USB hub that uses a thunderbolt connection? (in that case, I need to buy a thunderbolt PCI-E (I used 25 USB ports which my motherboard has 12 of those) 

 

2- Now I am using a corsair rm1000i but in the attached document you see the power consumption based on this website: 

https://outervision.com/power-supply-calculator

 

Do you think that is enough? 

could it damage the GPU if I dont upgrade my PSU? 

 

 

3- could you please help me with the bios? I am not sure how to keep the 4090 on 16x PCI-E 4.0 

and 2070 on 4x 

 

 

[Iwantcookies]

12 hours ago, -rascal- said:

@Iwantcookiesdo you NEED that 'UpHere' GPU support brace?

It is just for looks? What is it supporting?

 

The top PCI-E X16 slot (where your RTX 4090 is installed into) and the second PCI-E X16 slot should be spaced apart enough to slot a RTX 2070 into there.

The bottom PCI-E X16 slot runs at X4 electrically...

The issue wasnt the support, was the USB header, of course I removed that support before trying with 2070 

[Iwantcookies]

Update, 

Windows 11 detects both GPUs 

When over clocking I can chose which one to overlook, and in Nvidia panel also I can see both gpu, 

I thought in order for the 2070 not to effect the 4090 this should not happen? 

 

Please correct me if I'm wrong 

[IkeaGnome]

6 hours ago, Iwantcookies said:

1-can I get a USB hub (Powered) without any latency? Perhaps even a USB hub that uses a thunderbolt connection? (in that case, I need to buy a thunderbolt PCI-E (I used 25 USB ports which my motherboard has 12 of those) 

I've used one of these for about 4 years now. There isn't any major latency I noticed, but you have to be careful about bandwidth. If I have my keyboard, mouse, hotas joystick and throttle and rudder pedals plugged into it everything just kind of breaks. It's less to do with the hub it's self and more the bandwidth of USB 3.0.

https://www.amazon.com/gp/product/B07DW646GY/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

6 hours ago, Iwantcookies said:

2- Now I am using a corsair rm1000i but in the attached document you see the power consumption based on this website: 

https://outervision.com/power-supply-calculator

Is your 4090 a 450W bios? 

The 2070 just displaying multi monitor uses about 40W. Figure 100 or 150 in case you end up with a decent load on it for some reason.

https://www.techpowerup.com/review/nvidia-geforce-rtx-2070-founders-edition/31.html

The RMI is a good unit and I would be comfortable pushing it. For reference I have 2 1080s and a 2070 on a 1000w PSU running F@H 24/7. The 1080s run at about 170w with an undervolt and the 2070 runs at 200ish on an undervolt for a total of 550w constant on a Rm1000x. About what you'd be looking at worst case on a 450w 4090 bios. I know my Zotac has a 450w bios but doesn't really hit it all that often. PSU quality>wattage.

6 hours ago, Iwantcookies said:

3- could you please help me with the bios? I am not sure how to keep the 4090 on 16x PCI-E 4.0 

and 2070 on 4x 

You might not be able to,

 

On 12/19/2022 at 5:03 AM, Iwantcookies said:

Asus rog crosshair dark hero viii, 

Ryzen 9 5950x

Kingston FURY Beast DDR4 3600MHz 64gb 

Asus tuf 4090 oc
Thank you for your help so far, if you could please let me know how adding an old 2070 super would effect my system. 

I got a 1000W PSU for 4090, and will get another 750 for the 2070 super. 

 

This is a screenshot from my motherboard's manual, 

what do you think?

 

and here is why. It goes to x8 x8 x4. You're using the top slot in x8 and the 16_3 slot in x4. There might be a setting to force this to be different. What options do you have for PCI devices in your BIOS?

 

1 hour ago, Iwantcookies said:

Update, 

Windows 11 detects both GPUs 

When over clocking I can chose which one to overlook, and in Nvidia panel also I can see both gpu, 

I thought in order for the 2070 not to effect the 4090 this should not happen? 

 

Please correct me if I'm wrong 

I am glad you got both to fit and got both to be recognized. With a dual gpu set up I wouldn't be so worried about overclocking one or the other. Not sure which software you're using, but try MSI afterburner. It sounds like you're using Nvidia's software. MSI's is much better and a lot more used so there's more help to be gotten easily on that. 

Just MAKE SURE you download Afterburner from MSI's site there's been people lately copying and using it as a sort of phishing attempt.