sikhwarrior Posted November 16, 2022 Share Posted November 16, 2022 Hi all, I have a HP prodesk g6 sff https://support.hp.com/gb-en/document/c06388142, I have bought a rx 6400 as it was low profile and has the ability to run 4K 60hz easily but HP does not allow this gpu to run. Is there a way of getting the gpu to work on this PC or am I better off just getting a support gpu? hellowalkman 1 Share Link to comment https://www.neowin.net/forum/topic/1423340-unsupport-gpu-on-hp/ Share on other sites More sharing options...
Dick Montage Posted November 16, 2022 Share Posted November 16, 2022 In what way is it "unsupported"? What do you mean by "HP does not allow this gpu to run"? Essentially, when you install it, what happens? Link to comment https://www.neowin.net/forum/topic/1423340-unsupport-gpu-on-hp/#findComment-598777397 Share on other sites More sharing options...
hellowalkman Reporter Posted November 16, 2022 Reporter Share Posted November 16, 2022 see if a newer firmware supports it. https://support.hp.com/in-en/drivers/selfservice/hp-prodesk-400-g6-small-form-factor-pc/27733971 Link to comment https://www.neowin.net/forum/topic/1423340-unsupport-gpu-on-hp/#findComment-598777399 Share on other sites More sharing options...
corrosive23 Posted November 16, 2022 Share Posted November 16, 2022 Could be a power issue. The G6 SFF only has a 180 Watt power supply and the rx6400 requires 350 watts. Brandon H, jasondefaoite and xrobwx71 2 1 Share Link to comment https://www.neowin.net/forum/topic/1423340-unsupport-gpu-on-hp/#findComment-598777437 Share on other sites More sharing options...
sikhwarrior Posted November 16, 2022 Author Share Posted November 16, 2022 On 16/11/2022 at 10:25, Dick Montage said: In what way is it "unsupported"? What do you mean by "HP does not allow this gpu to run"? Essentially, when you install it, what happens? I spoke to someone from HP and they said this PC only supports about 6 gpus, all old and expensive for what they are worth, what I want to know is , is there a way of just flashing the bios to allow me to use an 'unsupported' gpu On 16/11/2022 at 12:39, corrosive23 said: Could be a power issue. The G6 SFF only has a 180 Watt power supply and the rx6400 requires 350 watts. works fine in a lenovo PC with 180 watts Link to comment https://www.neowin.net/forum/topic/1423340-unsupport-gpu-on-hp/#findComment-598777465 Share on other sites More sharing options...
Dick Montage Posted November 16, 2022 Share Posted November 16, 2022 Again, I ask - what happens when you install it? I don't care what HP say, they read from a script that was written at the time and is outdated. hellowalkman 1 Share Link to comment https://www.neowin.net/forum/topic/1423340-unsupport-gpu-on-hp/#findComment-598777485 Share on other sites More sharing options...
sikhwarrior Posted November 16, 2022 Author Share Posted November 16, 2022 On 16/11/2022 at 14:53, Dick Montage said: Again, I ask - what happens when you install it? I don't care what HP say, they read from a script that was written at the time and is outdated. Black screen, no output, remove the GPU and it works fine I can see windows. hellowalkman 1 Share Link to comment https://www.neowin.net/forum/topic/1423340-unsupport-gpu-on-hp/#findComment-598777490 Share on other sites More sharing options...
hellowalkman Reporter Posted November 16, 2022 Reporter Share Posted November 16, 2022 On 16/11/2022 at 20:30, sikhwarrior said: Black screen, no output, remove the GPU and it works fine I can see windows. have you already tried the newest firmware? Link to comment https://www.neowin.net/forum/topic/1423340-unsupport-gpu-on-hp/#findComment-598777492 Share on other sites More sharing options...
sikhwarrior Posted November 16, 2022 Author Share Posted November 16, 2022 On 16/11/2022 at 15:02, hellowalkman said: have you already tried the newest firmware? first thing I tried, fresh install of windows, updated the bios to the latest version and any other firmware it needs hellowalkman 1 Share Link to comment https://www.neowin.net/forum/topic/1423340-unsupport-gpu-on-hp/#findComment-598777494 Share on other sites More sharing options...
Mindovermaster Global Moderator Posted November 16, 2022 Global Moderator Share Posted November 16, 2022 Could just be underpowered.. As said above. Link to comment https://www.neowin.net/forum/topic/1423340-unsupport-gpu-on-hp/#findComment-598777496 Share on other sites More sharing options...
sikhwarrior Posted November 16, 2022 Author Share Posted November 16, 2022 On 16/11/2022 at 15:10, Mindovermaster said: Could just be underpowered.. As said above. works fine in a lenovo pc with 180 watt power supply, which is baffling me, both same ratings etc Link to comment https://www.neowin.net/forum/topic/1423340-unsupport-gpu-on-hp/#findComment-598777517 Share on other sites More sharing options...
Brandon H Supervisor Posted November 16, 2022 Supervisor Share Posted November 16, 2022 On 16/11/2022 at 09:57, sikhwarrior said: works fine in a lenovo pc with 180 watt power supply, which is baffling me, both same ratings etc that really doesn't say much. one machine may be more efficient at distributing its power. regardless it's below the minimum recommended spec for the GPU in question so it's probably BARELY running on that lenovo as is. when you're going below the minimum power requirement it's a luck of the draw hit and miss game. I would NOT expect the GPU to remain stable with that low wattage PSU if it runs at all. the lenovo probably is exceeding it's certified power limitations on the PSU to allow the GPU to work which could be a fire hazard among other things Link to comment https://www.neowin.net/forum/topic/1423340-unsupport-gpu-on-hp/#findComment-598777518 Share on other sites More sharing options...
sikhwarrior Posted November 16, 2022 Author Share Posted November 16, 2022 On 16/11/2022 at 15:58, Brandon H said: that really doesn't say much. one machine may be more efficient at distributing its power. regardless it's below the minimum recommended spec for the GPU in question so it's probably BARELY running on that lenovo as is. when you're going below the minimum power requirement it's a luck of the draw hit and miss game. I would NOT expect the GPU to remain stable with that low wattage PSU if it runs at all. the lenovo probably is exceeding it's certified power limitations on the PSU to allow the GPU to work which could be a fire hazard among other things I am assuming that, without any extra power cables, all it can pull is 75 watts from the PCI-E? Or have they increased the power for pci-e? Link to comment https://www.neowin.net/forum/topic/1423340-unsupport-gpu-on-hp/#findComment-598777527 Share on other sites More sharing options...
hellowalkman Reporter Posted November 16, 2022 Reporter Share Posted November 16, 2022 What CPU does your ProDesk 400 G6 have? If it's the i9 or the i7, then there is definitely not enough power for both CPU and GPU. Though I doubt power is the issue here. I think it's simply a prebuilt being a prebuilt and the firmware really won't support anything other than those four cards. also if you have the UHD 630, you can try going dual channel if it isn't already. while it is no way comparable to an RX 6400, you will definitely gain a good amount of performance. Link to comment https://www.neowin.net/forum/topic/1423340-unsupport-gpu-on-hp/#findComment-598777555 Share on other sites More sharing options...
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