However being a 75W card means the power supply is too small.
That's per Dell's specifications on 40W card max. Secure boot must be off for RX550 not from dell but CSM legacy mode must also be OFF because Legacy roms are not supported on RX series only GPT UEFI.
Suggested PSU 350 W Bare minimum. Dell uses 365W for 75W up to 120W card.
The other issue is the Slot color. Black Slot is wired X4 and only supports 25W card. The 3rd issue is that the power supply is totally proprietary having 8 pin instead of 24 pin EPS12v connection.
when 5.5 amps is free for the 12v rail and 3 amps is free for the 3.3v rail.
150W to 300W card needs 18 amps from 12v rail for each 8 pin Aux power connector. This is not disagreement its fact based on the PCI SIG. CEM, and UL 94v power safety specifications. Materials suitable under the CEM-1 specification in classification of NEMA – the most widespread materials for production of 1-layers printed-circuit boards. Standard CEM-1 material is composite material on a cellulose basis with one layer of glass fibre laminate (FR-4) on a surface. Usually CEM-1 has milky-white color but can be other colors based on the solder mask aka green, red, blue. My advice is given on the basis of engineering and safety specifications. Advising that under powered power supply is fine based on Youtube is very bad advice. The UL 94V-0 was the best flammability rating that given to materials that tolerated vertical burning. As by the standards, 94V-0 circuit boards are PCBs that could stop burning within 10 seconds after being subjected to vertical combustion. Electrical fires are common when power supplies and connectors are subjected to overheating due to beyond safe maximum power draw.
You can use power supply OUTSIDE the case like a 3650 with moddiy CAB359 DOES. Secure boot must be OFF for non dell cards and CSM must be OFF for ATI UEFI RX series cards. The power supply DOES NOT HAVE power connectors for the hard drives etc. EVERYTHING that uses power goes THRU the motherboard in proprietary non standard fashion.
1. "150W to 300W card needs 18 amps from 12v rail for each 8 pin Aux power connector. This is not disagreement its fact based on the PCI SIG. CEM,..."
2. "Advising that under powered power supply is fine based on Youtube is very bad advice..."
3. "X16 slot is 75W max BLUE SLOT"
1. There was disagreement there? You're right, no disagreement there.
2. The advice I give is not bad advice and many YouTubers, that you refuse to believe, have proven that. It shouldn't be anyone's problem if one refuses to believe factual videos. Dell also uses YouTube. Belittling and discounting YouTube videos hasn't changed them or my position. Some political ads might be full of it though.
3. Still agreed.
In case you haven't noticed speedstep, we're both able to cite specifications, just you more than me. And in case you haven't noticed, users have done things that work that don't fit some specifications. Quite notably with SOME of the older Dell's (with older printed specs) can take SOME RAM and CPU's not listed in specs.
And certain older Dell's with 240w-290w can take 75w GPU cards. Again, I have yet to have feedback from actual users saying otherwise, like it or not, accept it or not.
So speedstep, what's stopping you from making YouTube videos in regards?
Some of this question you posted in another thread.
It has been long established on YouTube that 240w-290w PSU's will power 75w cards. Speedstep will disagree. But, I have never received any negative feedback from actual users that it didn't work.
If speedstep tried 75w cards on 240w-290w Dell PSU's, and it didn't work, and he posted videos, it would be more convincing.
Continuing with your questions:
1. I don't know that a Fortron PSU will do you any good. First, you said in your other post that the RX550 works fine without the drivers. Something I've heard of is Secure Boot may need to be off.
1.5 Better is a 315w PSU that's normally for an Optiplex XE2 SFF. Often a PSU can boast more total wattage, but skimp on other rails, like the 3.3v/5v rails and then it doesn't work. Do you have a link to the PSU you're looking at?
2. You can use up to 75w cards in the PCI-e slot. (Speedstep will probably disagree here too.) Limit I believe is by MB. With 315w PSU, I'm not sure what the limit is. Apparently, it does have a 6-pin PCIe connector. 120w? - speedstep would know for sure. However, cards beyond 75w may be too much for your CPU, and then the CPU causes bottleneck. Helps to know what CPU you have to see how it would pair with the GTX 1650 you're looking at.
"Theoretically, my configuration cannot exceed 150w of consumption and the power supply is factory-set to 255, so there is a reserve." - Unfortunately, this is completely wrong. MB, CPU, and other accessories aren't taken into account here, including power to USB's. Speedstep often points out PSU's aren't about a single spec of watts. Not taken into the theoretical account is the MB, CPU, power to USB's, and any other accessories. You still have to have enough power on other rails besides 12v one, like the 3.3v and 5v rails just to name two. You try to draw more than 75w for a GPU on a 255 watt PSU and the PSU will absolutely trip. A good PSU will shut down when overloaded or shorted. A cheapy or non-name brand PSU might not trip and things fry.
Thank you for the comprehensive answer. I appreciate. The power supply has not yet been selected. I can buy any. It's just that Fortron is a good company and I'm sure the 400w one will handle the headroom with my setup (on all lines it will be much more powerful than the stock 255w). I just don't know if I'm spending my money for nothing. Nowhere is it clear what exactly limits the pci-e for the 7020 SFF. I do not know if it is the power supply itself or the motherboard and there is no way around it. The videos from YT clearly say that the GTX 1050ti and 1650 cards work without any problems, even on the pcie x4 (25w) connector. Unless the Optiplex 7010 SFF and 9020 SFF are different from the 7020 SFF because they were related to the movies. At the moment, I have 16gb of memory on board and an i5 4590. If necessary, I have the option to change to the i7 4770 with a small surcharge. A bottleneck is not a problem. RX550 works but only in bios and in the desktop but before installing the drivers. After installing them, I have a black screen. I have tried different systems and different driver versions. As I have already mentioned, the card works stably on HP (q9550 + 8gb ram) with 240w which surprised me a lot. I don't know why this 7020 is so problematic. I would change the SFF version to MT but I care about a small housing. Even if I were to lead the power supply outside it.
Secure boot is disabled by default and I haven't changed that.
Thank you for your response. It is a pity that I have already sent my RX550 back to the store. I think I had wrong options in my bios. Looks like I had CSM turned on. I upload photos with settings. My GPU version is exactly MSI RX5502GTLPOC (low profile). As for power. I already bought a 24pin to 8pin adapter a week ago. He is lying and waiting for the power supply. I want to extend the cables and hide the power supply behind my desk. It will look like a factory kit. The only question is whether the 7020 SFF will definitely work with the GTX1650 with a more powerful power supply.
"The only question is whether the 7020 SFF will definitely work with the GTX1650 with a more powerful power supply."
So I already linked a video showing it working and could link more. It'll please speedstep and make him smile, if you use 315w PSU for Optiplex XE2 SFF. You won't, and don't, have to worry about not being able to power 75w GPU card.
Today I received MSI GTX 1650. Everything works perfectly despite plugging the card into the pcie x4 connector. The factory power supply works well and does not cause any reboots or instability. However, I will not tempt fate and I will order the 315w one. I am tempted to leave the card in the x4 connector and not combine with the power supply outside the housing. The performance is very satisfactory (tests show that the difference from x16 is usually 3-4fps) and the temperatures do not exceed 72c. It's a pity that Dell changed the order of the connectors and gave x4 at the top, but nothing can be done about it. Anyway, I confirm that the 1650 is fully stable in the Optiplex 7020 SFF, but I recommend replacing the power supply with the 315w version. Thanks to everyone for the tips. I hope this topic will be helpful to other forum users.
There is another option to be aware of if you or another user really wanted to use the PCI-e x16 slot, though I'm sure less than desirable. That"s a PCI-e x16 extender riser cable. Then the GPU could sit outside the case. https://www.amazon.com/s?k=pci-e+x16+extender&ref=nb_sb_noss
I was thinking about the riser and found some options with the stand. Pretty nice option. I'll think about it again. For now, the RX570 ITX sits in the open housing under the Fortron 450w power supply. The GTX 1650 has been returned. It's a noisy medium-performance card. The fans run at 30% speed even in the desktop (no passive mode). Unacceptable. I have one more question. It is a pity to develop a new thread. I disconnected the fan at the front of the case because it annoys me (produces an annoying noise). I plan to wear something from Noctua. At the moment, however, the CPU fan is stupid. After a few minutes of playing, it turns into very high speed despite the cpu temperature of 40c. When I connect the front fan, the situation normalizes (the revs increase on both while playing but are lower). What is responsible for this? With the option with two connected fans, on what basis is the speed increased? Does the CPU temperature only matter, or what else?
With disconnecting the case fan, I'm surprised you're not getting an error message at startup. Nonetheless, all I can fathom is due to the error disconnecting the fan creates, it's over-compensating with the CPU fan.
Careful using any non-Dell fans. Dell's fan wiring is proprietatry. Even though there's adapters, and it's not entirely impossible to use other brand fans, recently, we had one that tried a Noctua fan for CPU and had an adapter. It still shorted the MB and killed it.
Be sure to check out YouTube for any fan videos for your 7020 or least an Optiplex in the same generation (same case style).
There's fan filters to cut down on dust inside the case. But this also cuts down on airflow a little. Not a problem with using an open case. I'm thinking a fan or bezel filter cutting down on airflow a bit may also cut down fan noise.
Not supported by Dell, there's a couole of other options that may help. HWiNFO64 or SpeedFan. They'll come up in Google. It's a horse a piece on who likes which one better.
speedstep
9 Legend
•
47K Posts
1
October 19th, 2020 08:00
MSI RADEON RX550 4GT LP OC PCIE 4GBCTLRGDDR (R5504TPC)
is the only model that might fit into SFF
However being a 75W card means the power supply is too small.
That's per Dell's specifications on 40W card max. Secure boot must be off for RX550 not from dell but CSM legacy mode must also be OFF because Legacy roms are not supported on RX series only GPT UEFI.
https://www.dell.com/support/home/en-us/product-support/product/optiplex-7020-desktop/docs
speedstep
9 Legend
•
47K Posts
1
October 19th, 2020 09:00
X1 slot is 10W max BLACK SLOT
X4 slot is 25W max BLACK SLOT
X16 slot is 75W max BLUE SLOT
when 5.5 amps is free for the 12v rail and 3 amps is free for the 3.3v rail.
150W to 300W card needs 18 amps from 12v rail for each 8 pin Aux power connector. This is not disagreement its fact based on the PCI SIG. CEM, and UL 94v power safety specifications. Materials suitable under the CEM-1 specification in classification of NEMA – the most widespread materials for production of 1-layers printed-circuit boards. Standard CEM-1 material is composite material on a cellulose basis with one layer of glass fibre laminate (FR-4) on a surface. Usually CEM-1 has milky-white color but can be other colors based on the solder mask aka green, red, blue. My advice is given on the basis of engineering and safety specifications. Advising that under powered power supply is fine based on Youtube is very bad advice. The UL 94V-0 was the best flammability rating that given to materials that tolerated vertical burning. As by the standards, 94V-0 circuit boards are PCBs that could stop burning within 10 seconds after being subjected to vertical combustion. Electrical fires are common when power supplies and connectors are subjected to overheating due to beyond safe maximum power draw.
https://pcisig.com/sites/default/files/files/PCIe_CEM_4_0_Previews.pdf
speedstep
9 Legend
•
47K Posts
0
October 19th, 2020 12:00
You can use power supply OUTSIDE the case like a 3650 with moddiy CAB359 DOES. Secure boot must be OFF for non dell cards and CSM must be OFF for ATI UEFI RX series cards. The power supply DOES NOT HAVE power connectors for the hard drives etc. EVERYTHING that uses power goes THRU the motherboard in proprietary non standard fashion.
https://www.youtube.com/watch?v=SCQTj1ei3Ew
https://www.moddiy.com/products/Dell-OptiPlex-7020-PSU-Main-Power-24-Pin-to-8-Pin-Adapter-Cable-30cm.html
That falls into the "its ugly but it works" category.
The 24 to 8 pin adapter is NOT optional to use regular power supply.
You remove the internal unit and run the wires into the square hole left behind.
bradthetechnut
7 Technologist
•
9.3K Posts
1
October 19th, 2020 18:00
1. "150W to 300W card needs 18 amps from 12v rail for each 8 pin Aux power connector. This is not disagreement its fact based on the PCI SIG. CEM,..."
2. "Advising that under powered power supply is fine based on Youtube is very bad advice..."
3. "X16 slot is 75W max BLUE SLOT"
1. There was disagreement there? You're right, no disagreement there.
2. The advice I give is not bad advice and many YouTubers, that you refuse to believe, have proven that. It shouldn't be anyone's problem if one refuses to believe factual videos. Dell also uses YouTube. Belittling and discounting YouTube videos hasn't changed them or my position. Some political ads might be full of it though.
3. Still agreed.
In case you haven't noticed speedstep, we're both able to cite specifications, just you more than me. And in case you haven't noticed, users have done things that work that don't fit some specifications. Quite notably with SOME of the older Dell's (with older printed specs) can take SOME RAM and CPU's not listed in specs.
And certain older Dell's with 240w-290w can take 75w GPU cards. Again, I have yet to have feedback from actual users saying otherwise, like it or not, accept it or not.
So speedstep, what's stopping you from making YouTube videos in regards?
bradthetechnut
7 Technologist
•
9.3K Posts
1
October 18th, 2020 18:00
Some of this question you posted in another thread.
It has been long established on YouTube that 240w-290w PSU's will power 75w cards. Speedstep will disagree. But, I have never received any negative feedback from actual users that it didn't work.
Optiplex 7020 SFF + GTX 1650 + YouTube
If speedstep tried 75w cards on 240w-290w Dell PSU's, and it didn't work, and he posted videos, it would be more convincing.
Continuing with your questions:
1. I don't know that a Fortron PSU will do you any good. First, you said in your other post that the RX550 works fine without the drivers. Something I've heard of is Secure Boot may need to be off.
1.5 Better is a 315w PSU that's normally for an Optiplex XE2 SFF. Often a PSU can boast more total wattage, but skimp on other rails, like the 3.3v/5v rails and then it doesn't work. Do you have a link to the PSU you're looking at?
2. You can use up to 75w cards in the PCI-e slot. (Speedstep will probably disagree here too.) Limit I believe is by MB. With 315w PSU, I'm not sure what the limit is. Apparently, it does have a 6-pin PCIe connector. 120w? - speedstep would know for sure. However, cards beyond 75w may be too much for your CPU, and then the CPU causes bottleneck. Helps to know what CPU you have to see how it would pair with the GTX 1650 you're looking at.
"Theoretically, my configuration cannot exceed 150w of consumption and the power supply is factory-set to 255, so there is a reserve." - Unfortunately, this is completely wrong. MB, CPU, and other accessories aren't taken into account here, including power to USB's. Speedstep often points out PSU's aren't about a single spec of watts. Not taken into the theoretical account is the MB, CPU, power to USB's, and any other accessories. You still have to have enough power on other rails besides 12v one, like the 3.3v and 5v rails just to name two. You try to draw more than 75w for a GPU on a 255 watt PSU and the PSU will absolutely trip. A good PSU will shut down when overloaded or shorted. A cheapy or non-name brand PSU might not trip and things fry.
mesiah1989
7 Posts
0
October 19th, 2020 08:00
Thank you for the comprehensive answer. I appreciate. The power supply has not yet been selected. I can buy any. It's just that Fortron is a good company and I'm sure the 400w one will handle the headroom with my setup (on all lines it will be much more powerful than the stock 255w). I just don't know if I'm spending my money for nothing. Nowhere is it clear what exactly limits the pci-e for the 7020 SFF. I do not know if it is the power supply itself or the motherboard and there is no way around it. The videos from YT clearly say that the GTX 1050ti and 1650 cards work without any problems, even on the pcie x4 (25w) connector. Unless the Optiplex 7010 SFF and 9020 SFF are different from the 7020 SFF because they were related to the movies. At the moment, I have 16gb of memory on board and an i5 4590. If necessary, I have the option to change to the i7 4770 with a small surcharge. A bottleneck is not a problem. RX550 works but only in bios and in the desktop but before installing the drivers. After installing them, I have a black screen. I have tried different systems and different driver versions. As I have already mentioned, the card works stably on HP (q9550 + 8gb ram) with 240w which surprised me a lot. I don't know why this 7020 is so problematic. I would change the SFF version to MT but I care about a small housing. Even if I were to lead the power supply outside it.
Secure boot is disabled by default and I haven't changed that.
mesiah1989
7 Posts
0
October 19th, 2020 13:00
Thank you for your response. It is a pity that I have already sent my RX550 back to the store. I think I had wrong options in my bios. Looks like I had CSM turned on. I upload photos with settings. My GPU version is exactly MSI RX5502GTLPOC (low profile). As for power. I already bought a 24pin to 8pin adapter a week ago. He is lying and waiting for the power supply. I want to extend the cables and hide the power supply behind my desk. It will look like a factory kit. The only question is whether the 7020 SFF will definitely work with the GTX1650 with a more powerful power supply.
bradthetechnut
7 Technologist
•
9.3K Posts
1
October 19th, 2020 18:00
Hi @mesiah1989,
"The only question is whether the 7020 SFF will definitely work with the GTX1650 with a more powerful power supply."
So I already linked a video showing it working and could link more. It'll please speedstep and make him smile, if you use 315w PSU for Optiplex XE2 SFF. You won't, and don't, have to worry about not being able to power 75w GPU card.
bradthetechnut
7 Technologist
•
9.3K Posts
1
October 19th, 2020 18:00
So I did some bottleneck checking with the I5-4590, I7-4770, and a couple of GPU cards:
mesiah1989
7 Posts
1
October 21st, 2020 13:00
Today I received MSI GTX 1650. Everything works perfectly despite plugging the card into the pcie x4 connector. The factory power supply works well and does not cause any reboots or instability. However, I will not tempt fate and I will order the 315w one. I am tempted to leave the card in the x4 connector and not combine with the power supply outside the housing. The performance is very satisfactory (tests show that the difference from x16 is usually 3-4fps) and the temperatures do not exceed 72c. It's a pity that Dell changed the order of the connectors and gave x4 at the top, but nothing can be done about it. Anyway, I confirm that the 1650 is fully stable in the Optiplex 7020 SFF, but I recommend replacing the power supply with the 315w version. Thanks to everyone for the tips. I hope this topic will be helpful to other forum users.
bradthetechnut
7 Technologist
•
9.3K Posts
1
October 21st, 2020 17:00
I'm glad you're happy with your GTX 1650.
There is another option to be aware of if you or another user really wanted to use the PCI-e x16 slot, though I'm sure less than desirable. That"s a PCI-e x16 extender riser cable. Then the GPU could sit outside the case. https://www.amazon.com/s?k=pci-e+x16+extender&ref=nb_sb_noss
mesiah1989
7 Posts
1
October 24th, 2020 11:00
I was thinking about the riser and found some options with the stand. Pretty nice option. I'll think about it again. For now, the RX570 ITX sits in the open housing under the Fortron 450w power supply. The GTX 1650 has been returned. It's a noisy medium-performance card. The fans run at 30% speed even in the desktop (no passive mode). Unacceptable. I have one more question. It is a pity to develop a new thread. I disconnected the fan at the front of the case because it annoys me (produces an annoying noise). I plan to wear something from Noctua. At the moment, however, the CPU fan is stupid. After a few minutes of playing, it turns into very high speed despite the cpu temperature of 40c. When I connect the front fan, the situation normalizes (the revs increase on both while playing but are lower). What is responsible for this? With the option with two connected fans, on what basis is the speed increased? Does the CPU temperature only matter, or what else?
bradthetechnut
7 Technologist
•
9.3K Posts
1
October 24th, 2020 11:00
With disconnecting the case fan, I'm surprised you're not getting an error message at startup. Nonetheless, all I can fathom is due to the error disconnecting the fan creates, it's over-compensating with the CPU fan.
Careful using any non-Dell fans. Dell's fan wiring is proprietatry. Even though there's adapters, and it's not entirely impossible to use other brand fans, recently, we had one that tried a Noctua fan for CPU and had an adapter. It still shorted the MB and killed it.
Be sure to check out YouTube for any fan videos for your 7020 or least an Optiplex in the same generation (same case style).
There's fan filters to cut down on dust inside the case. But this also cuts down on airflow a little. Not a problem with using an open case. I'm thinking a fan or bezel filter cutting down on airflow a bit may also cut down fan noise.
Not supported by Dell, there's a couole of other options that may help. HWiNFO64 or SpeedFan. They'll come up in Google. It's a horse a piece on who likes which one better.
Whatever you do, good luck!!
mesiah1989
7 Posts
0
October 24th, 2020 15:00
I think I will solve it somehow Thank you again for professional help. Greetings.