• Competitor rules

    Please remember that any mention of competitors, hinting at competitors or offering to provide details of competitors will result in an account suspension. The full rules can be found under the 'Terms and Rules' link in the bottom right corner of your screen. Just don't mention competitors in any way, shape or form and you'll be OK.

NVIDIA RTX 50 SERIES - Technical/General Discussion

So I've got an Msi Geforce rtx 5080 16 gb ventus 3x oc landing shortly (paid under a grand for it from another retailer), and I believe that it isn't great choice for undervolting/overclocking, am I correct on this?
If not is there a guide that I can follow to get the most out of the new card?
Thanks in advance.
 
No outer box for the 5090, not even sealed. Condensation inside.


image hosting forum

Monitor box broken

Pg32ucdm elsewhere
5090 a competitor
Disgraceful that an expensive item is delivered like this! I've got my 5080 being delivered from the same reseller and I'm wondering what state that's going to be in! Are you going to install the 5090 or return it?
 
Last edited by a moderator:
Mine has just been delivered by DPD and was in a plastic sealed bag, so yours is definitely not "right" in terms of delivery!

That's not much better though, wtf :eek:

I ordered a PS5 anniversary controller from the same company and it only arrived in a bag as well, so the packaging was all crushed.
I complained and got a £20 voucher as an apology. Just glad I bought the controller to use, not to collect
 
That's not much better though, wtf :eek:

I ordered a PS5 anniversary controller from the same company and it only arrived in a bag as well, so the packaging was all crushed.
I complained and got a £20 voucher as an apology. Just glad I bought the controller to use, not to collect
I agree, the card is cold and clammy to touch and has a feel of condensation to it too. I'll let it come up to room temperature before attempting to install.
 
The competitor is willing to offer me £20 compensation voucher. Imagine if I sent this back to them like that with no seal or anything.

Same as they gave me.

The voucher is a letter which can only be used in-store so if you're like me and never likely to go there, you're better off seeing if you can push for something else.

My item was also only worth about £60, so a £20 voucher was a third of the value. With something worth £2000 they should be offering more than that lol
 
I have a ‘really into the weeds’ technical question regarding the PCIE 5.1 spec - hoping that someone could clarify this for me.

There’s quite a lot of info available regarding the increased options available for Sense 0 and Sense 1 pins in the new 12V-6x2 spec:



I’m struggling to understand the significance of the new options being available for 0w and 150w power states.

From the second link above:

EKMtJOe.jpeg


^^^ the formatting there could be a LOT better but it looks like the first table is for the new standard, whereas the second table is for the old standard.

From the first intel link:



I’m currently sat here thinking… “but what does it all mean, Basil?!”

I understand that the new pin lengths help ensure a more robust connection (hence H++ being better) but I’m ultimately trying to understand if the info I’ve set out in this post (re: SENSE0 and SENSE1) is, or isn’t, an additional reason to be weary of using a H+ socket with a 50 series card. It might be a total nothing-burger, but I’m not sure.

Any thoughts, oh wise ones?
So from my understanding, the state relayed over the sense pins as to the capabilities of the PSU just prevents people from using underpowered PSUs for GPUs. It does nothing to help with melting connectors. The *shorter* sense pins obviously help slightly with ensuring the plug is properly inserted. They were too long before and the GPU would happily pull current over a plug that wasn't fully inserted because the sense pins still made contact, causing melting. HOWEVER it seems now that that wasn't really the main issue all along as evidenced by the fact that nothing has really been solved and cables are still melting. Remember that a plug could be fully inserted but there could still be problems with the pins inside the plug or the cable itself. I don't know if you've ever seen one of these pins outside of its plug housing, they have teeny-tiny metal barbs holding them into the plug. It's not difficult to pop one out. I was doing some cable re-routing the other day and accidentally pulled a pin out of an 8pin plug (I had a spare so completely replaced it). This is why the GPUs need safety features to cope with faults in individual strands.

If you use a 2x8pin into 12VHPWR cable, I imagine the cable just hard wires a double GND signal so you get the full 600W. You obviously lose the partial insertion detection on the plugs into the PSU now but that doesn't really matter because you're using good 'ole reliable 8pin which are larger (better heat dissipation) and spread over 2 plugs instead of 1. Both the Intel engineer and the Corsair R&D guy think this is the preferable option.

TLDR; less 12VHPWR = more betterer

I avoided the 40 series because of the prices and melty cables. I can't believe I come back looking to buy a new GPU, a complete new generation YEARS LATER and we're still talking about this frigging issue.
 
And these 12VHPWR cables... would we reckon the fire/melting risk is less on lower power cards like 5070ti and 5080? Is there any implementation of these where they can be safely used?.
The only knowledgeable person to actually put a number on what he considers an acceptable power draw on these cables is the Intel engineer. He said around 375w. He did say the 5080 was cutting it a little fine. The 90 series cards are unsafe in his opinion. This kinda tracks with what you see in terms of reports online for different GPUs. AFAIK 4080 Supers and below seem to be fine.
 
@SeeNoWeevil - thanks for your post. All noted.

I think the ‘most material’ bit, that @Murphy and I went on to discuss, is that in the old standard there was never a ‘fail safe’ setting in which the GPU would be told that there is ‘no power’ despite a loose connection. (i.e. in table 2 there is no ‘0w’ scenario - compare that with what is shown in table 1).

In that sense, this should in theory mean that in some scenarios where everything is ‘not in place’ in a H++ socket, the GPU is effectively told that there is no power. This is obviously a redundancy approach rather than a full solution to the problems though - it may be of limited effect as even in the H+ set-up, what wattage ought to still be limited in these scenarios

Does that make sense / do you agree? I’m learning on this subject myself, so I’m more than happy for this to be clarified if I’m misspeaking.
 
Last edited:
Back
Top Bottom