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So I may try another 5080 model for fun. I sent the Newegg Zotac 5080 Solid Core OC back today. If I could find a white Astral 5080, or maybe the Aorus Extreme WB model for not crazy prices. I had so much fun testing these two 5080’s. Maybe a Giga Master OC 5080. 🥹 @electrosoft the higher voltage card, my original Zotac was the better overclocker in the end. It was weird, on paper the low voltage card looked great at first showing crazy high clocks idle, low power consumption. But under an actual load, the other one would clock higher in actual games, score higher in benches, and it was more stable. Weirdly enough, it also ran cooler by 2c at least. They even had totally different color thermal pads and all. Maybe that had something to do with it. You could see the pads from the side of the cards. One had solid black pads, the other had light gray pads.

Yeah I feel silly now. The $2,700 dollar Astral seems like a great deal right about now. You got any of those? 😁😁😁!! @Mr. Fox Rocking triple 54mm thick HW lab GTX 480’s with Quadra pumps! Two in main case compartment, and one in the basement. These rads are insane. Have you ever tried them? I got hooked when someone sent me one years ago in a 280mm variant, it outperformed (2) 30mm thick EKWB classic 360’s. Hot air does not stand a chance in this case. It is pushing hot air directly up and out of the case, as well as intaking cool air from the front of the case. And from the basement side panel of the case.

I am confident we could probably snatch up (3) RTX 5080’s for $3,000 USD. But yes you’re right the 5090 really is the worst value in history right now. That’s really crazy! Since we can’t even find one for an even 3K USD. I think (3) used 5080’s and (1) used 5070 would 🟰 (1) retail 5090. 😃

Man, the clocks we can run on a 5080 is awesome! GPU Tweak III lets me run 34,500 on the GDDR7. This gives a +15% memory bandwidth increase of a stock RTX5080. It gets really warm with auto fans playing Death Stranding II at 4K. The thing is not bad for $1,000 bucks!

It’s hard to justify keeping the 2nd one lol. That one came from Newegg, and it costed me $1,500 overnight delivery. The one I’m keeping was a different story, it was $1,000 bucks off of Facebook. I’d love to keep both. But I will definitely buy lossless scaling and give it a try this weekend though. I’m going to hang on to the other 5080 for a bit at least. I’m blown away by performance right now. Coming from a 5090 though. I did not have high expectations for the 5080, but this thing is freaking sweet!

Alright! Now that I have been able to bench and test both cards head to head without a locking up PC. Let’s get in to the details. These two cards are identical models! One built in Indonesia, the other one built in China. Origin: Made in China. Card A: Zotac Solid Idle clock: 210Mhz Max voltage @30c: 1060mv Max core OC idle @30c: 3382Mhz 1075mv frequency idle @30c: 2,977Mhz Origin: Made in Indonesia. Card B: Zotac Solid Idle clock 210Mhz Max voltage @30c: 1040mv Max core OC idle @30c: 3,420Mhz 1075mv frequency idle @30c: 3,007Mhz Card “B” seems better to me for daily gaming, it responds better to higher offsets, it responds better to undervolting. It sips power, I can run 900mv@2,977Mhz which is faster than stock clocks, which sends +120-+135 extra mv to the core and runs about 2,867Mhz in games. It loses nothing at 900mv. And it runs about 220 watt in extremely demanding 4K games I will flash the 450W Astral bios to both and see who shines under the flame of heat though, we know these cards can perform differently under actual loads. I flashed the Astral Extreme 450W bios to card “A” so far I still can’t get the idle 30c clock speed to exceed 3,367-3,382Mhz range without locking up. But, it’s performing great in Steel Nomad so far! I broke 10K, that’s not bad for a 5080. I’m really just curious who can handle the 450w bios the best! The RTX 5080 doesn’t show its self very well in Steel Nomad lol. It’s better in games.

Im not sure if I’ll keep them both yet. I may return one. I do like them though. Build quality of Zotac is pretty good. It feels dense and high quality. I have never owned a Zotac GPU before now. I’m going to research dual GPU’s a bit and see if there are any benefits. Edit: One more thing, neither of these Zotac’s have any coil whine. I think that’s one of @electrosoft big pet peeves. Speaking of which. Man I wish I could send you a power supply so you could have a listen your self. It’s an EVGA 1300 P+, It’s only a back up unit. But it is the loudest power supply you’ll ever hear in your life. Full on screaming coil whine that changes with mouse movement. YOU WOULD LOVE IT! I mean, you can hear it across the house.

Yep! That was it! A data cable just like a printer would use. It’s like a fire wire on one end, and USB-A on the other end. I ran it from my monitor to my PC. Furmark 4K has been running for 56 minutes now. What a tail chasing experience this has been!

35 minutes and counting still running Furmark!

I will check this. I have errors, criticals, and a bunch of warnings!! TPM not enabled, unexpected shutdowns, Ethernet lost connection, LSO was triggered. I have tried just 1 ram stick earlier. UPDATE: I unplugged my USB A to USB A that was going from my monitor to my desktop and suddenly now it’s not crashing. I don’t know what that would do. I’m not sure why. I had my webcam, keyboard, mouse all plugged in to my monitor, and then my monitor USB A plugged in to my motherboard. I eliminated that connection, and suddenly things seem okay. Fingers crossed here. Furmark 4K has been running for 25 minutes now.

I ran Furmark and the system just locked up on the new M.2 SSD with new OS installed. It took about 8 minutes. Dang, I guess it’s time for new board and CPU. I don’t know what else to check.

Yep, I have ran both RTX 5080’s in the bottom slot PCIe. I also tried X16 and X8 mode. We tested the 5080 in my son’s system and it works fine. I just reinstalled Windows 11 on a brand new 512GB M.2 SSD. Fingers crossed. I am only running a single M.2 2TB, I pulled that out, and trying the 512GB now.

I have installed a new 512GB M.2 SSD. We’ll see what happens. I wish that was all it was. It’s interesting because I can run Ycruncher full ram usage and the system just chugs right though. I ran it over 90 minutes last night.

Quick update! The issue still persists! Things I have tried. (1) Two different GPU’s (2) Pulling ram cleaning and reinstalling 1 stick only. (3) Removing CPU, checking pins, cleaning contact surfaces and remounting CPU all torqued to spec at 12in lbs in correct sequence! (4) unplugging everything and plugging everything back in to motherboard. (5) A different 12vhpwr plug (6) A different PSU all together . (7) Different bios on my motherboard. (8) Reinstalled windows 11 (8) moved M.2 to a different location. (9) Tried different PCIe slots (10) tried running only x8 PCIe speeds (11) Tried adding unrealistic CPU and ram voltages at stock speeds or reduced clocks. PC is completely freezing I can still see the picture. It completely HARD locks. Things I have NOT tried yet. (1) Using a different M.2. Maybe my 2TB M.2 is failing? It has fairly low health left something like 75%. (2) Different motherboard. Maybe my Dominus Extreme is failing? (3) Trying a new CPU. Maybe my Xeon W3175X is failing? I am at a loss. It sure does look cool though lol!!!

Would be awesome if running two RTX 5080’s was useful for something. 😂 They really match so perfectly together!! Maybe there is a benefit? Or a waste.

Yes! Very very hard to buy a 5090. That guilt is STRONG after buying one too. Today’s prices are nuts. 5080 is a value and gets the job done!! Gone are the days of high end affordable GPU’s. It’s a rich man’s club now. EDIT: So happy I found the issue! When that 2nd brand new Zotac RTX 5080 locked my PC up, I was concerned and relieved at the same time. Relieved that the RTX 5080 was not defective. But also worried what the issue could be. The bad cable was ran daily on a shunt modded 5090FE, so it must have took the cable out I guess. What’s weird though, is I had no issues running the 5090FE up until the day I pulled it from the system. So I think maybe it sitting it just degraded? It’s so weird. I’m going to do some testing now and see which is the best GPU! I would prefer a low voltage low power queen if I had to pick. I don’t know what all the fuss or hate about Zotac is either. Both of these cards are built incredibly well. I had a Gigabyte 4090 Gaming OC, and that thing felt like a Dollar General toy lol. 😂 these cards feel nice and look very high quality.

IT WAS THE CABLE!! I think my 5090 did it in lol. Swapped the 12vhpwr. No crashing!!! 🤩🤩🤩🤩🤩🤩

I am trying a different PSU cable to see if that helps, so far it’s a 6/20 loops in Steel Nomad 🙏. Previous cable was a Lian Li 12vhpwr to 12vhpwr. Now I’m trying a 2x8pin to 12vhpwr. If this fails I will try another PSU. I cleaned the PCIe slots with MAF automotive cleaner. It’s great! It leaves behind zero residues unlike how alcohol can. I pulled all (12) ram sticks and cleaned those as well. I’m thinking CPU socket pins could be suspect as well if a new PSU+cable doesn’t resolve the issue. Maybe the shunt modded 5090 was just too hard on the little 1200 unit or its cable…😂 Would be curious to just test both cards and see which is the best!!!

Just an update. I have another issue going on with my computer.. Both 5080’s crash and lock up my PC. Yes I bought a brand new one from Newegg lol. (Now I have two) I am not sure what it could be. My system was perfectly fine when I unplugged my 5090 at the very end of 02/2026. Now here I am in 05/2026 and it’s locking up after 5 minutes of rendering anything 3D. I have two functional 5080’s it seems. Maybe bad PSU? I have ran R24 and Ycruncher and those run fine .

Nah man, I got the full brunt on this one. I bought it on Face Book market place, did some very quick sessions with it like running a game for all of 1-2 minutes, ran a single steel nomad benchmark lol. And works fine in 2D applications and will run however long you need in 2D, but under 3D load it is locking up the PC after 5-10 minutes or the 2nd Steel nomad pass lol, I have tried all sorts of things and it just won’t let you game more than about 10 minutes. I tried my son’s GPU in my system, and that works just fine. No locking up. But, did not try this 5080 in his system. I suppose there is no point in that now. I am 100% certain the GPU is defective.

I think my 5080 is defective. Been trying to play some games longer than a couple minutes. And it just hard locks my entire PC up after about 10 minutes of playing. Tried different drivers, reseating the GPU in a different slot, tried DDU. Nothing helps. I have completely reset my PC bios to all stock settings. I Flashed the 5080 back to its original bios, no difference at all. Same crashing no matter the game. 3Dmark stress test fails at 0.00% every time.

Yeah 5090 is certainly fast in Forza, that’s really good though. But man +60% for triple the cost. I’m thinking 1K 5080. VS. 3K 5090. AI has pushed these things to crazy price tags. We got to beg to pay 3K cash for one on FB Market place lol.

I sold the shunted 5090FE and the EKWB waterblock only for $2,350 on overlock.net. Just wanted to get my money back out of it. I actually still have the FE air cooler and FE box. I kept those so new potential owners couldn’t turn around and scalp the card on eBay or somewhere else. 😂 The 5090FE is still shunted and someone is still running it as far as I know.

He sounded like someone with an accent from a different state. Like up north to me. But really good English.

@Mr. Fox and @electrosoft I almost sent the money for that scammer 5090 Astral. I had talked to the guy on the phone and he made me feel super comfortable. It’s crazy to even say that lol. But I held back waiting for proof of ownership. And once I saw the pic, I knew something was seriously wrong. Also, I asked chatGPT if the photo was found anywhere online or if the photo was even real. (The floating paper pic lol) ChatGPT said “This is a real photo” 😂😂😂 this didn’t help. Anyways, I ended up getting a Zotac Solid OC 5080 for 1K cash locally just a few hours ago. 5090’s are just wayyy too extreme price wise for me. My system was setup for a water cooled GPU, so I just threw a D5 pump and top in there to allow water to pass through. Flow rate is EXTREME with (5) D5’s and no GPU 😂 online image resizer with hosting I also sold my laptop! I came up with this idea on Saturday to sell it and help fund a 5090 and alleviate the extreme blow for such an extraordinary expensive item. So I listed it for $1,500 bucks. Selling my laptop put me in a really really good position to buy a 5090 now, but even then, I couldn’t grasp the idea of doing it. Then my wife caught wind of me messaging people on FB Market place and making offers. And that idea of dropping 3K was all over with at that point. 😭 Anyways. Gaming on a laptop just isn’t for me. I don’t like the power limits, and the thermal limits. I really love the idea of a laptop. But when it actually comes down to it. It’s just really kinda lame. It worked fine for working from for about 3 months. Update: This Zotac 5080 is insane how well it undervolts. I tried the Gigabyte 5080 Master bios(Does not work drivers won’t load) then flashed the Zotac Extreme bios (This worked great) card maxed out of 1060-1065mv voltage. I am running 2,955@0.895mv. SUB 200 watts in games. It is pretty astounding how well it’s undervolting. Lots of fun 🤩 abnormally efficient GPU that’s for sure. This is roughly a +400 offset, it has some more room I think. Hope you are feeling okay @Papusan have a great night everyone!