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3090FE low GPU usage?

Danny75 said:
Bingo.

So here's the thing, apparently on Rocket Lake you need more VCCIO Mem OC and System Agent than usual. In fact some boards combined with some RAM (when XMP is enabled) set those voltages to:

1.4v each with 2 sticks.
1.4v - 1.6v with 4 sticks.

It was something Der8auer pointed out in a video and others have mentioned with some Gigabyte/MSI/Asus boards and certain RAM types (like Crucial Ballistix) and I also noticed it myself with MSI Z590 Pro Wifi and Crucial Ballistix. What's up in the air right now is whether 1.4v-1.6v is too high for even Rocket Lake as neither Intel nor any board manufacturer has commented on this. What I think is indisputable is that 1.176v and 1.136v is low for 3200 on Rocket Lake. You already know the CPU pulls more power than others, and the CPU memory controller needs to as well.

So now you have two voltages* to play with to see if you get better results (with XMP enabled + tuning those two voltages). Can tell you that I lowered both those voltages on mine to 1.25v for XMP 3600MHz but after a day of gaming and running benchmarks fine, suddenly the next day there was a memory overclocking error during post, so I bumped them up to 1.3v and currently testing. Given my board says the max is up to 1.7v, and it sets 1.6v for 4 sticks... up to 1.3v seems real safe compared to what can be the default in other cases.

* VCCIO Mem Oc and System Agent. The other one, VCCIO, from my brief research, is not as important to touch with Rocket Lake, and the value you stated looks fine.
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Awesome thanks for the detailed info, so any preference on which I should bump up first or should they bumped up together? And are we talking bumping up by like 0.05v at a time and testing?
 
Danny75 said:
Give them both an initial solid bump to 1.2v and test. After that I would go to 1.225v, 1.25v, 1.275v, 1.3v as required, after testing.

I'm waiting on word from an OcUK technician to see if up to 1.6v is actually safe or not. Or if that can be confirmed elsewhere. Till then I'm not going to go over 1.3v.
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Will do, thanks. I'll let you know how it goes.

So ideally to get the best out my CPU I need to get some faster RAM at some point?
 
Danny75 said:
I believe the limits of Gear 1 are 3733/3866 so it's really no big deal. Gear 2 which allows for higher frequencies doesn't sound too good to me going from what I've read, other than for very cheap motherboards that don't allow power limit unlocking or make it difficult because of bad VRM cooling. In such cases, using Gear 2 can free up more power to the CPU to get slightly better overall performance within the 65W limit.
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Got ya, just realized I have a choice of XMP 1 or 2, I guess that's a whole other can of worms so I'll probably leave that for now.
 
Also, slight hiccup with upping those voltages, I can't find the OC jumper switch on my board which needs to be switched to allow me to change the voltage values. It's not where the manual says it should be lol.

It;s supposed to be number 14 but all that's there is what looks like a capacitor, It's probably staring me in the face somewhere so hopefully I'll find it in a min:








Danny75 said:
When you click Save and Exit, your BIOS should pop up a list of the changes and ask you to confirm? The list may or may not specify which XMP speeds/timings will be employed with XMP 1 and 2, if you'd like to check that way. Sometimes it's the exact same, other times different. That said, if your current XMP settings accurately reflect the Dominator's specs, then you're fine already.
Click to expand...

Cool, I'll leave it on 1 for now so as not to confuse things too much.
 
Apparantly they moved it since writing the manual, any idea how I use that? Gut instinct is either to move the cap over to the right so it covers the middle and left pin or just remove it?

51263557898_1a6509a279_o.jpg
 
Found out how to use the jumper, move it over one pin.

It won't actually boot with XMP on 3200MHz but with it lowered to 3066MHz CPU-Z shows Mem Controller at 1533MHz and DRAM and 1533MHz
 
With the PC jumper enabled I still can't change the voltages, nothing changes for VCCIO Mem Voltage but I now get a drop down menu for System Agent Voltage that says Auto, Manual and Offset and when the latter two are selected I get a sub menu item called CPU SYSTEM AGENT VOLTAGE OFFSET yet none of the options allow me to change voltage.
 
Somehow my Sys Agent voltage is now just 0.976V (IIRC it was at 1.36V) and I can't seen to change it no matter what I do, I enter values in the offset and it doesn't change the main value at all.
 
Sorry I meant VCCIO Mem, you are right it was 1.136v with XMP on I believe and 0.976 with XMP off.

I've just reset BIOS because I got scared because I wasn't sure how to set VCCIO Mem to 1.2V as the only way I could change the value was to do it as an offset which I didn't fully understand.

So I'm back on default BIOS but with the following changes:

XMP On (But manually lowered to 3066MHz)
Speedstep Disabled
Speed Shift Enabled
Adaptive Boost Enabled
C-States Disabled
Boot Logo Disabled
Post Report 1 Second

And my fan curves.

As is it loosk like this in Time Spy https://www.3dmark.com/spy/21019586 Which looks pretty healthy, 4.8GHz is right for all core usage I beleive. And Cinebench R20 score is 68xx which again ran at 4.8GHz

I'll go see how it performs in BFV for a bit (for science of course) and come back to the XMP 3200MHz crashes later when I fully understand how to input the required voltages. You definitely have to have that jumper enabled to change those values manually, when you hover over the Auto setting in the BIOS a message is shown saying that the jumper needs switching before you can do anything.
 
MartinPrince said:
I suggest running your RAM at 1.4v first before playing with IO and SA.

Memory speed and timings can have quite an effect on frame time, which we can perceive as smoothness. You are finding out that various motherboards can deal with exactly the same memory sticks quite differently. As @Danny75 has pointed out the default voltages given to SA and IO can be too little or way over the top.

For my Z390 motherboard I remember Buildzoid stating that anything over 1.35v for SA and IO could potentially damage the CPU yet when set to XMP my motherboard would set them to 1.38v. I've got them tuned and overclocked quite a lot but the SA and IO are at ~1.27v

Your 3200 RAM is decent but I would definitely recommend getting higher specced RAM with tighter timings to get the best out of the other components in your system. I'm a little surprised as from my experience Asus are one of the better manufactures when it's coming to setting up RAM properly and running it at optimised speeds.
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Thanks, I need to get a bit of a handle on how changing the voltage works on this BIOS, and yeah I had no problem with my last ASUS board (z270 TUF Mark 1) running these very same RAM sticks at 3200MHz with XMP.
 
MartinPrince said:
Simple, just change the DDR Voltage from 1.35v to 1.40, no need to try higher. I suspect you may then be able to run at XMP without crashing. If not that is when you need to looking at SA and IO or other issues with the RAM.
Click to expand...

I couldn't figure it out for whatever reason, after switching the OC jumper on the board I could switch VCCIO Mem OC to manual and enter a voltage manually just fine but when I clicked on CPU System Agent Voltage it gave me the options of Auto, Manual and Offset, neither Auto or Manual would let me manually enter a voltage soi clicked on Offset which gave me a new sub menu where I could enter a value (max 0.999) so I wasn't really sure what to do with that, I tried entering a few different values but didn't see the voltage change and because I didn't know exactly what I was doing when entering values in the Offset box I didn't want to save and exit to apply them.
 
MartinPrince said:
As I don't have the precise same motherboard I can't check but you shouldn't have to play with any jumpers to change the standard DRam voltage, neither should you need to change any 'offset' settings. It *should* be fairly straight forward to change DRam voltage to manual and set it to 1.4v. Especially on decent Asus motherboards.
Click to expand...
I'll get a photo up shortly so you can see what I've been trying to do.
 
MartinPrince said:
Simple, just change the DDR Voltage from 1.35v to 1.40, no need to try higher. I suspect you may then be able to run at XMP without crashing. If not that is when you need to looking at SA and IO or other issues with the RAM.
Click to expand...

Aplogies on my part, I thought we were still talking about SA and IO, my bad. See below image, is this what you mean, just bump that up to 1.4V:

51263131592_9ed7d3d654_o.jpg
 
Danny75 said:
No because the lists are never complete. And they also don't provide an incompatible list. Those lists are for those buying new RAM who want to be sure it has been tested on the board but it should not be seen as an "oh well, your memory is incompatible, so too bad for you" thing.

Back to - the VCCIO Mem OC and System Agent remain low for Rocket Lake*. You may need to wait for a BIOS update for either better compatibility out of the box, or to sort out any issues you are still experiencing when attempting to modify voltages.

* Remember, I'm having to use 1.3v on mine (11700 - 3600MHz) and out of the box with mine it was 1.6v.

In the following thread there is a Shamino, who may or may not be the actual Shamino of Asus ROG fame - https://rog.asus.com/forum/showthre...A-voltage-after-loading-XMP!-1-638V!-Be-aware

Regardless of who that guy is (and he is a Super Moderator), he mentions that a co-worker says high SA voltage is required for non-K chips on Rocket Lake, but that he, Shamino, is trying to convince him to do the same for the K chips. Inferring that when a K chip like yours is installed, the BIOS may not be setting enough SA just now.
Click to expand...
Ah I see, cool, I'll have a read of that then as well. And in the meantime try to figure out how to adjust my SA voltage :D
 
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