bloodshot45
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I have a few safety questions in regards to memory overclocking with afterburner/precision x1 using a 3080 FTW3 Ultra 1. Do I need to worry about VRM temps? If so, how do I monitor VRM temps on a 3080? 2. Afterburner/X1 allow me to overclock memory up to +1500. Any concerns if I overclock near max if stable? 3. I've read high memory overclocks can lead to artifacts. Is this still an issue with 3080 memory? 4. Any other things I should be cautious about when overclocking video memory? Thanks!
post edited by bloodshot45 - 2020/10/17 20:52:43
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arestavo
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Re: 3080 Memory Overclocking Safety Questions
2020/10/17 20:52:02
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If you don't have a 3080/3090 FTW3 card with iCX sensors, you can't monitor memory temperatures without a custom job of putting sensors in yourself.
If you do have a FTW3, use Precision X1 (latest 30 series version) to monitor temperatures. IIRC, Gamers Nexus said that GDDR6X is rated for 110C.
As with any overclock, it may degrade over time - requiring you to lower the overcloxk to remain stable.
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Shikhee
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Re: 3080 Memory Overclocking Safety Questions
2020/10/17 20:52:41
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I'm not sure for the other questions but for #3 I believe gddr6x is ECC, in that it checks and corrects for errors. So if you overdo it, you'll just get less performance instead of artifacts.
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bloodshot45
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Re: 3080 Memory Overclocking Safety Questions
2020/10/17 20:54:01
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arestavo
If you don't have a 3080/3090 FTW3 card with iCX sensors, you can't monitor memory temperatures without a custom job of putting sensors in yourself.
If you do have a FTW3, use Precision X1 (latest 30 series version) to monitor temperatures. IIRC, Gamers Nexus said that GDDR6X is rated for 110C.
Forgot to mention what card I was using, updated! I am using FTW3 Ultra so I'll check precision x1 for the sensors. Thanks! Shikhee
I'm not sure for the other questions but for #3 I believe gddr6x is ECC, in that it checks and corrects for errors. So if you overdo it, you'll just get less performance instead of artifacts.
I heard the same thing but wasn't sure if ECC also prevented artifacts. Thanks!
post edited by bloodshot45 - 2020/10/17 20:56:26
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bloodshot45
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Re: 3080 Memory Overclocking Safety Questions
2020/10/17 21:01:30
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So I just checked Precision X1 (1.1.0.9) and I do not see any VRAM sensors. When clicking on "ICX" icon in bottom right of GUI it only displays the GPU temperature. I also checked HWM but didn't see anything there either for memory temps. Where would I find it?
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arestavo
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Re: 3080 Memory Overclocking Safety Questions
2020/10/17 21:03:16
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By clicking the iCX button like you did. If you aren't running a FTW3 VBIOS (on a FTW3 card), it won't show anything but the GPU temperature.
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bloodshot45
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Re: 3080 Memory Overclocking Safety Questions
2020/10/17 21:04:09
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arestavo
By clicking the iCX button like you did. If you aren't running a FTW3 VBIOS (on a FTW3 card), it won't show anything but the GPU temperature.
I have the card in OC mode using the FTW3 XOC bios for 450W PL. I still don't see it.
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arestavo
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Re: 3080 Memory Overclocking Safety Questions
2020/10/17 21:06:01
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bloodshot45
arestavo
By clicking the iCX button like you did. If you aren't running a FTW3 VBIOS (on a FTW3 card), it won't show anything but the GPU temperature.
I have the card in OC mode using the FTW3 XOC bios for 450W PL. I still don't see it.
I guess the beta VBIOS doesn't show the sensors then. Try flashing the normal beta VBIOS to the slot you're using and check again. If not, check the stock VBIOSs.
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arestavo
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Re: 3080 Memory Overclocking Safety Questions
2020/10/17 21:07:39
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bloodshot45
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Re: 3080 Memory Overclocking Safety Questions
2020/10/17 21:10:32
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arestavo
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Re: 3080 Memory Overclocking Safety Questions
2020/10/17 21:11:49
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bloodshot45
arestavo
You could also try the new .11 PX1 as well.
https://forums.evga.com/E...ies-ONLY-m3120459.aspx
Just installed it and it wants to update my firmware for some reason. Did EVGA release an official firmware with the 450W PL?
Fan controller firmware, different from the VBIOS.
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bloodshot45
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Re: 3080 Memory Overclocking Safety Questions
2020/10/17 21:14:35
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arestavo
bloodshot45
arestavo
You could also try the new .11 PX1 as well.
https://forums.evga.com/E...ies-ONLY-m3120459.aspx
Just installed it and it wants to update my firmware for some reason. Did EVGA release an official firmware with the 450W PL?
Fan controller firmware, different from the VBIOS.
Had no idea there was firmware for fans. I just updated and it solved the issue! 1.1.0.11 shows the VRM sensors. Thanks for the help.
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arestavo
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Re: 3080 Memory Overclocking Safety Questions
2020/10/17 21:16:55
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Good. Hopefully your VRAM is good under load - my 3090 VRAM is anywhere from high 60s to low 70s C under hours of load at +750 (my max stable for 24 gigs).
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bloodshot45
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Re: 3080 Memory Overclocking Safety Questions
2020/10/17 21:20:13
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arestavo
Good. Hopefully your VRAM is good under load - my 3090 VRAM is anywhere from high 60s to low 70s C under hours of load at +750 (my max stable for 24 gigs).
How can I get all the ICX sensors to show up in OSD? It seems only GPU temp shows up. Can I use afterburner just for OSD?
post edited by bloodshot45 - 2020/10/17 21:22:37
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arestavo
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Re: 3080 Memory Overclocking Safety Questions
2020/10/17 21:24:51
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You have to add it - Click HWM at the top, click the number "1" in red (I assume "1" refers to the GPU, if you had 2 there'd be "1" "2" etc in red). Choose GPU Mem Temp (add all of them).
Afterburner won't work for the iCX sensors, just GPU temp (and just 1 of those sensors, as there are 2).
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bloodshot45
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Re: 3080 Memory Overclocking Safety Questions
2020/10/17 21:30:49
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arestavo
You have to add it - Click HWM at the top, click the number "1" in red (I assume "1" refers to the GPU, if you had 2 there'd be "1" "2" etc in red). Choose GPU Mem Temp (add all of them).
Afterburner won't work for the iCX sensors, just GPU temp (and just 1 of those sensors, as there are 2).
OK, it worked for HWM but the OSD remained the same. Nothing I added to HWM shows up in OSD.
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arestavo
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Re: 3080 Memory Overclocking Safety Questions
2020/10/17 21:33:09
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Whoops, I forgot - you have to click the tiny OSD above each output graph. If you've added a ton of stuff, don't forget to scroll down and click OSD on the graphs that were hidden.
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bloodshot45
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Re: 3080 Memory Overclocking Safety Questions
2020/10/17 21:34:33
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arestavo
Whoops, I forgot - you have to click the tiny OSD above each output graph. If you've added a ton of stuff, don't forget to scroll down and click OSD on the graphs that were hidden.
That did it. Thanks!
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bloodshot45
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Re: 3080 Memory Overclocking Safety Questions
2020/10/17 21:36:53
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Any way I can detect memory errors? I'm trying to figure out the best way to check if my memory overclock is indeed stable. Currently just running the game Control and running around in max settings.
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arestavo
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Re: 3080 Memory Overclocking Safety Questions
2020/10/17 21:38:50
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The way I saw big reviewers do it was to have Heaven benchmark running in windowed mode, and they paused the scene and upped the VRAM clock until they saw the FPS drop. Of course, that's not the be all end all test really since Heaven doesn't use a boat load of the VRAM, so it's not all tested. The only real way to see if it's totally stable is to load up a game that actually uses a ton of VRAM (and not just pre-allocates a bunch) and see if it's OK. Unless there's a VRAM tester out there - there probably is one, I just haven't heard of it (well, one that tests for speed and not just errors, since GDDR6X has limited ECC function).
post edited by arestavo - 2020/10/17 21:43:51
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bloodshot45
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Re: 3080 Memory Overclocking Safety Questions
2020/10/17 21:40:42
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OK, I'll give that a shot. Thanks!
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bloodshot45
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Re: 3080 Memory Overclocking Safety Questions
2020/10/17 22:15:46
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So I just realized Precision X1 only allows me to raise voltage to 0.9250v yet Afterburner allows me to raise this higher. Is there a setting I'm missing in Precision X1?
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arestavo
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Re: 3080 Memory Overclocking Safety Questions
2020/10/17 22:22:14
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AFAIK, the voltage slider only ALLOWS the GPU to use up to 1.093V when the slider is maxed. I've only ever had my scores go down when I move it up from 0 to 100.
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bloodshot45
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Re: 3080 Memory Overclocking Safety Questions
2020/10/17 22:25:56
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That is funny...Setting it to 0 fixes the issue. It goes past to the proper limit now. I assume this is just a bug in the Precision X1 software. Thanks!
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Dabadger84
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Re: 3080 Memory Overclocking Safety Questions
2020/10/18 03:43:43
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From what I understand most 3080 FTW3 Ultras are hitting in the +800 to +1000 range on the vRAM... going any higher than that is unlikely & will result in lower performance because of the GDDR6X ECC kicking in like someone else mentioned.
I would try stock, then +500, then go +800, test each on some benchmarks, see if your score goes up, if it does, the +800 is working properly. That's what I did & the score changes were noticeable on Port Royal, Time Spy & others.
I've gotten completely sidetracked from testing what this card can do full on, haven't done any OC testing in the last two evenings.
Good luck & I wouldn't worry about "damaging your vRAM", I don't think that's possible without modding the card itself, with the way the BIOS of the card, Precision X1 & the card itself are designed. As long as you're keeping it cool, it'll be fine (the highest temps I've seen on my vRAM thus far is around 63C under heavy load at the +800 setting)
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I_R0M_I
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Re: 3080 Memory Overclocking Safety Questions
2020/10/19 11:33:15
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For me, setting the slider to 0 loses performance.
Score : -428
FPS : -7
Min : +0.1
Max : -50
Thats at 200 mem, 160 core, still boosts to 2115
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