redarman
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Edit: I'm using this PCIe riser cable in case that's relevant. Hadn't had any issues for ~6 months, not sure if this is the culprit. Noticed this while folding@home. I have a 1 minute video of the display scrolling through the usual display readings occasionally interrupted by this "+5V too high". Goes away when I turn off F@H, comes back with I start F@H. Through corsair icue I logged the 5V readings from the PSU at 1second intervals; while idling the voltage was usually 4.97v +- .03v, with F@H running I only saw a reading of 4.97v. What's going on? Can I measure the voltage at the GPU? GPU: 2080ti KP, original bios @ default precisionX1 settings PSU: Corsair AX1600i MB: x570 aorus master
post edited by redarman - 2020/07/09 22:57:39
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Sajin
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Re: 2080ti KP +5V too high
2020/07/08 13:03:02
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Read from this post onward.
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redarman
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Re: 2080ti KP +5V too high
2020/07/08 13:15:29
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Sajin Read from this post onward.
edit: looks like you linked the post correctly but my chrome browser doesn't scroll down for me; if I click on your link I only see the intended post if I rush down quickly to catch the tail end of the highlight animation :P Did you link to a post? It sent me to the 6th page of that thread and I read the whole page. I'm using corsair-brand sleeved cables. Can I measure the voltage at the GPU?
post edited by redarman - 2020/07/08 13:54:32
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ty_ger07
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Re: 2080ti KP +5V too high
2020/07/08 15:49:00
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redarman edit: looks like you linked the post correctly but my chrome browser doesn't scroll down for me; if I click on your link I only see the intended post if I rush down quickly to catch the tail end of the highlight animation :P
Yep, it's been broken this way in Chrome for a long long time. It has been reported at least once ... by me ... in the EVGA forum problems thread. EVGA doesn't care. It used to work properly in chrome .... years(?) ... ago. It works properly in some other browsers though. It's weird. That's why whenever I link to some other post, I give the link AND say the post #.
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redarman
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Re: 2080ti KP +5V too high
2020/07/08 16:21:39
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ty_ger07
redarman edit: looks like you linked the post correctly but my chrome browser doesn't scroll down for me; if I click on your link I only see the intended post if I rush down quickly to catch the tail end of the highlight animation :P
Yep, it's been broken this way in Chrome for a long long time. It has been reported at least once ... by me ... in the EVGA forum problems thread. EVGA doesn't care. It used to work properly in chrome .... years(?) ... ago. It works properly in some other browsers though. It's weird. That's why whenever I link to some other post, I give the link AND say the post #.
So what do I do? Is this a GPU glitch or can I trust that there's an issue upstream of my GPU?
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Sajin
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Re: 2080ti KP +5V too high
2020/07/08 16:26:11
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If you're not using extensions like stated in the other thread I linked then it could be a pci-e cable issue, or a psu issue.
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redarman
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Re: 2080ti KP +5V too high
2020/07/08 17:34:07
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Sajin If you're not using extensions like stated in the other thread I linked then it could be a pci-e cable issue, or a psu issue.
I'm not using extensions; I'm using corsair-brand cable set approved for my specific corsair PSU. In that thread you stated the standard is 5.25V, 5.35V max; mine is ~5.18V at idle and ~5.28V once [link=mailto:F@H]F@H[/link] starts with peaks up to 5.4V. I took a video to watch it. I don't know when the KPE decides to display the 5v warning but in my video I never caught the reading above 5.4v. In that thread you recommended measuring the voltages manually. I checked the short KPE manual and this xdevs guide but I don't know how to measure the 5v myself. It looks like all those probeit ports are for ~1v stuff otherwise that would've been really convenient :/
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Sajin
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Re: 2080ti KP +5V too high
2020/07/08 17:44:29
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The best way to monitor the 5v is just to monitor off a molex plug using a volt meter.
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redarman
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Re: 2080ti KP +5V too high
2020/07/08 17:54:58
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Sajin The best way to monitor the 5v is just to monitor off a molex plug using a volt meter.
Is that going to show the same skewed 5v that the GPU is complaining about while under load? If not where on the GPU can I measure the 5v it's using?
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Sajin
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Re: 2080ti KP +5V too high
2020/07/08 17:59:51
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Yes. If you want to measure from the gpu you'll need to get a probe it cable.
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redarman
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Re: 2080ti KP +5V too high
2020/07/08 18:07:50
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Sajin Yes. If you want to measure from the gpu you'll need to get a probe it cable.
Yes, the molex will show the high 5v? I can measure the 5v at the GPU with a probeit cable? I have the probeit cable that came with the GPU but xdevs doesn't show anything about 5v on the probeit header.
post edited by redarman - 2020/07/08 18:13:45
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ty_ger07
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Re: 2080ti KP +5V too high
2020/07/08 18:25:40
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Since the PCI-E slot doesn't provide +5v power to the card (not as far as I can tell, at least), I would say that monitoring your power supply's +5v output is a red herring. Instead, I believe that the +5v on the card is derived from a buck converter on the card itself which takes 12v input and reduces it down to 5v. More than likely that 5v power is then used for the HDMI connector and maybe drive voltage for other VRM circuits. It's a good question for TiN_EE ... since he was part of this video card's design process. Edit: https://www.youtube.com/watch?v=h3qYESoy5qI&t=3m10s"... somewhere in this area on the card there is going to be a 5 volts regulator because of course these are smart power stages and they do not run on 12 or 3.3 volts ..." Edit again because I didn't see your other reply to Sajin: redarman Yes, the molex will show the high 5v?
No, I don't think so. I mean, your 5 volt on molex may be high ... I guess you will find out ... but even if it is high (or isn't high), it should have no affect on the 5 volt regulation on the card which you are seeing a warning about.
post edited by ty_ger07 - 2020/07/08 18:41:26
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Sajin
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Re: 2080ti KP +5V too high
2020/07/08 19:05:38
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Thought the probe it cable could check it. Oops. The error is caused from the 5v rail being too high. That is clearly seen in the post i linked in post #2 by user Brichard0625. Brichard0625 used hwifo to monitor his motherboard 5v rail to find the issue. The jumping 5v went away after getting rid of his gpu extension power cables.
post edited by Sajin - 2020/07/08 19:09:02
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ty_ger07
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Re: 2080ti KP +5V too high
2020/07/08 19:36:53
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Sajin The error is caused from the 5v rail being too high.
The card isn't connected to the PSU's 5 volt rail. How is the card getting information about the PSU 5-volt rail? EVGA's known-buggy software from the motherboard's known inaccurate sensors via SMBUS? This is built into EVGA Precision? Why would that feature be added to the video card? How many motherboards has EVGA had to test and decode SMBUS data for in order to add this feature into Precision? That is clearly seen in the post i linked in post #2 by user Brichard0625.
I discounted it as irrelevant because it doesn't affect the GPU in any way, and is likely not an accurate reading. Everyone knows that those software readings are to be taken with a grain of salt. I would have imagined that the video card only reports about voltages relevant to the video card and uses proper hardware monitoring to give a reliable measurement. What's next? EVGA's card will start warning you that Windows Update is out of date? If it is true that the GPU is warning about system voltage which has no affect on the GPU, via a known-inaccurate measurement on the motherboard and relayed to EVGA's known-buggy software, I guess you should get an accurate measurement of that voltage from a PSU molex connector with a multimeter to find out if it is indeed out of spec. But then what? How do you fix the warning if you find out that nothing is actually wrong? Punch a hole in the video card's screen with a screwdriver? I still would like TiN_EE's input on this. Is it true that the card, which isn't connected to the PSU's 5-volt output is getting information via Precision about the 5-volt rail output voltage via the motherboard's SMBUS? I don't see it listed in the Precision monitoring options.
post edited by ty_ger07 - 2020/07/08 20:01:59
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Sajin
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Re: 2080ti KP +5V too high
2020/07/09 04:19:18
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Decided to check it out on my rig... So looks like the card is monitoring it's own created 5v rail within the card. The 5v rail created by the card, and the motherboard rail do not match on my system. Card was showing 4.99-5.00 while my motherboard was showing 5.070. So something must be going on with the op's pci-e cables, psu, or the card isn't converting 12v to 5v correctly anymore. If I were the op I would get rid of the sleeved cables, and go back to the stock ones to see if that might fix the issue. If that doesn't fix the issue then I would replace the psu next. If still no dice I would rma the card next.
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sparetimepc
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Re: 2080ti KP +5V too high
2020/07/09 04:34:15
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This is an issue I have learned to ignore, both of mine have done it periodically from time to time and never any GPU problems. Sometimes everything is fine and then when clicking the restart or shutdown PC it will flash on the screen, then go off. I still think it's in the firmware, heck mine sometimes will show 12v error even when it's fully booted, the 12v error will stay on the OLED but then if I reflash the firmware it goes back to normal. So flashing firmware should have no effect on the PSU or cables.
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Sajin
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Re: 2080ti KP +5V too high
2020/07/09 04:42:38
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Definitely not a firmware issue. I've never seen any +5v or +12v warnings from my card ever. Nothing like knowing your hardware is experiencing voltage ripple from a crappy psu to make you feel good inside. Heh.
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sparetimepc
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Re: 2080ti KP +5V too high
2020/07/09 04:51:16
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Ain't power supply either because it does it with evga 1300 watt or 1600 watt different cables does it in 2 different computers totally as well, problem follows the card but yet has no negative impact on the card. You know my scores on 3d mark sajin and we both know evga power supplies are not crappy.
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Sajin
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Re: 2080ti KP +5V too high
2020/07/09 04:53:43
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sparetimepc Ain't power supply either because it does it with evga 1300 watt or 1600 watt different cables does it in 2 different computers totally as well, problem follows the card but yet has no negative impact on the card. You know my scores on 3d mark sajin and we both know evga power supplies are not crappy.
Yep, you got some nice scores for sure. Yeah, that is why my evga 1600w fried a few of my motherboards. lol. Not evga's faulty though as they don't make the psu's themselves. Seasonic all the way now.
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sparetimepc
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Re: 2080ti KP +5V too high
2020/07/09 04:59:07
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I have not tried the OEM cables to see if it changes or not both of mine have the evga custom cables being used. I might see if it changes but would be hard to believe 2 sets of custom cables causing the same problem. Also we all have our opinions on different parts and who's are or are not better but I never criticize someones choice of preference.
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Sajin
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Re: 2080ti KP +5V too high
2020/07/09 05:00:55
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You can choose to use whatever you want. I'm not criticizing anything. I'm just stating what I'm seeing here, and what I have experienced in the past.
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sparetimepc
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Re: 2080ti KP +5V too high
2020/07/09 06:25:09
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I have seen the seasonic psu's but never yet tried one of them
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Sajin
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Re: 2080ti KP +5V too high
2020/07/09 06:25:56
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sparetimepc I have seen the seasonic psu's but never yet tried one of them
Let us know if your ripple issues get fixed by swapping cables or trying a different psu. =)
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redarman
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Re: 2080ti KP +5V too high
2020/07/09 20:06:52
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I spoke with 2 EVGA tech support phone reps today; 1 transferred me to another. I don't completely understand the PSU 5v rail compared to the GPU's own 5v but I mentioned the difference between my icue/HWinfo steady voltages of 4.97v and the GPU display's 5.18v-5.4v and asked whether the GPU has its own 5v independent of the PSU 5v and whether that explains the difference. My takeaway was that the GPU 5v warning message is over conservative, I shouldn't worry about it unless I'm doing extreme overclocking and getting the warning, no cause for alarm, try another PSU/cables, try replacing/removing the pcie riser cable (forgot to mention this but editing original post to include it), and they could RMA the card if I wanted.
Then I called Corsair tech support and they seemed equally unalarmed and the rep was either less interested or less knowledgeable regarding my PSU 5v and GPU 5v questions. They also offered to RMA the PSU so for now I'm going to go ahead with the PSU RMA for now.
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Sajin
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Re: 2080ti KP +5V too high
2020/07/09 23:18:34
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So using the original psu cables, and not using the riser cable didn't help stop the problem for you?
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