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will the PSU be enough for overclocking

5900x PBO 3080 overclock PSU

5.7K views 43 replies 17 participants last post by  bwade065  
#1 · (Edited)
Hi,

I purchased a pc off cyberpowerpc to secure a 3080 configured in the build below.


With the 750 Watts - Thermaltake Toughpower GF1 Series 750W 80 PLUS GOLD Ultra Quiet Full Modular Power Supply, will I be safe for overclocking?

thanks,

bwade065

edit: wasnt sure how to share the correct config, but my loadout would be the 5900x, 16g RAM, nvme, some fans, 240mm clc, and 3080. Specifically, I'm asking if the 750 wat thermaltake above would suffice with overclocking 5900x and 3080.
 
#12 ·
If you OC the 5900X correctly, it will not consume 200W.

You have to limit PPT, TDC and EDC. I have it at 165W. The CC1 cores hit 4.95 GHz regularly while gaming. Sometimes they'll it 5-5.1 GHz.

As for the GPU, if it's the higher end ones those can draw 450W.

You should be okay. More than likely these pre-builds come with 2x 8-pin GPU which only consume 375W or lower.
 
#17 ·
PSU is fine, I use a superflower 750w with more or less the same component and mine all day, every day. No problem at all, also that particular TT psu isn't terrible, its ok.
 
#18 ·
After researching the TT GF1, i found out that it uses Japanese capacitors and has a 10 yr warranty.
 
#21 ·
The GF1 PSUs are decent power supplies. You should be able to handle a decent OC of the proc and the 3080 as well. The 3xxx series are very picky with the PSU used with them because they have very high short power draw spikes. You are toeing the line, but you should be ok with that unit.
 
#23 ·
More research into this area indicated that while there are power spikes, those power spikes are way lower than what the PSU can handle. My own 3080 will trip my PSU's protection at only 550W of total system power draw, 100% repeatable as soon as I start my processing on the tensor cores for about 5 seconds. Turns out it is the 3000 series are sending noise back to the PSU through the +12V sense wire on the motherboard's 24-pin power connector, which trips only certain PSUs. The worst one affected are those manufactured by Seasonic from a few years back.

I solved my issue using a TDK-manufactured wide frequency ferrite choke. So based on the 550W draw when it tripped, the fact that I was able to solve the issue by just clipping on a simple choke and then running the same tensor core processing for 2 hours non-stop without any trips, it is not overcurrent. It is noise feedback from the GPU to the PSU. Really bad filtering/shielding by the 3080.

Image
 
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#22 · (Edited)
I run a 5900X, overclocked to a PPT of 170W (limited by temperature), and a 3080 which draws up to 330W in my normal workload (it is a 2x8 pin card). The highest power draw I was able to achieve was 680W by hitting at the same time an all core load such as Cinebench and a full GPU load with Port Royal. This is a scenario that you will never use in real life. If you were, you would be maxing out both CPU and GPU temperatures, throttling them, your fans would be running at full speed and it would probably heat your room up pretty quickly.
 
#33 ·
Avoid the GF1. While originally it was built on the CWT (iirc GPT) platform, it was reported to have now been produced in two versions, one of which has lower quality components. You don't know which one you will get.

If I find the link, I'll post it later. I'd have to search through the previous replies in another forum and I am really time constrained today, have a class.

P.S. You can always be safe with the excellent Corsair RMx, MSI AGF, maybe Enermax DF Revolution (all CWT). The Superflower Leadex III is a capable PSU. The new EVGA G6 (Seasonic made) are ok.
 
#37 ·
I am replying to @bwade065 with concrete data about the fact that GF1 is now made by two OEMs and people don't know if they get the good one or not. Bwade, if you bought it from Amazon or BB you can actually return it.

As to get the biggest PSU - the efficiency is low at 10-20% in many PSU, which is when you brose and do basic stuff, most of the day. So, if one buys a PSU for 5900pbo and 3080 OC, he'll probably pull max-max 500w, even with a flashed FTW3. Even with spikes, a 850w unit is enough.

If I were to suddenly want a 1300w psu, I'd look (like in this 1000w EVGA G6 review) at the efficiency under low loads graphs, 12v rail deviation, hold up time, in rush current, ripple suppression etc you seem to have just summarily dismissed or maybe I'm wrong about your dismissal, who knows:
EVGA SuperNOVA 1000 G6 Power Supply Review: EVGA Meets Seasonic
 
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#44 ·
So it looks like they kind of of hooked me up. I was given an EVGA 3080 FTW3 Ultra. My wattmeter is saying im pulled just under 600 watts with the card in the OC bios switch setting, and core voltage, power limit, temp limit maxed in MSI Afterburner with a +100 on the core and +300 on the memory.

I do not believe the 5900x is overclocked at all however. Assuming I find overclocking the 5900x not worth it, I should be in the clear with this thermaltake PSU(the originally reviewed model, not the new one mentioned in this thread before) , correct?

BTW, I would not suggest ordering from CyberpowerPC. Asside from the good components, they messed up some serious stuff. Below is a copy of my google review:
--------------------------------Begin Review------------------------------
Ordered a custom PC that cost around $2600 after taxes September 2021 during the chip shortage. First time ordering a prebuilt.

Pros:
1. Arrived almost a month early
2. Great shipping/packaging experience.

Cons:
1. Scratches in multiple places on the black powder coat exterior of pc
2. Case USB 3.0 header cable was plugged in backwards in the motherboard, something that is supposed to be hard to do as the cable is notched.
3. Radiator fan is missing a screw
4. $900 GPU has scratches on its backplate. I can only speculate this came from when the technician was installing the radiator fan as the screw space is tight but is easily avoided by installing the fans first before installing radiator.
5. Customer service was extremely hard to get a hold of, requiring multiple calls and emails.
6. Ordered overclocking on the PC, and the only configuration set in the BIOS was memory XMP.
7. Front NVME SSD is not properly installed with spacers, and has notable wiggle that can be addressed with the proper screw/washer.
8. Cable routing in the back of the case was so bad, the back of the PC case had a visible bulge and was most certainly causing flex on the motherboard and rear NVME slot on the back. Thankfully, I fixed this before installing my secondary NVME.
-------------------------------- End of Review------------------------------