Cooling problems persist on LGA1700

[ShrimpBrime]

When I built this rig a year ago I was chasing ram speeds of 7800, and I got 7400 stable with a lot of testing and tweaking. Then the bios updates caused instability so I stopped trying and have been stable on 7200 with default SA ever since.


Yeah I am thinking that plus maybe I don’t have a pristine slice of wafer in my 14700k... plus mid grade GB is I got what I paid for. Oh well!

Maybe I will swap the contact frame back in and try under volting *shrug emoji* shoulda just gone with a high end MB and 14900k to at least get a somewhat better binned cpu. Oh well. With no major cpu advancements coming I do not see a reason to burn more cash for a few percent gaming fps.

You won't gain even a few percent cause your are hitting 100c on synthetic loads, not games. There is definitely nothing to worry about.

On the custom loop, can do 5.7P and 4.5E cores respectively at room temp (75-80f). 5.8ghz P cores will just heat soak faster. That is tuning with LLC only. V-core on auto. This is realistic clocking, not show boat. That's what you read next. But for the purpose of seeing where the wattage is at, and what you get from it.

With chilling, 8P cores only, I can achieve 6.1/6.2ghz in the 300w area. With all P and E cores, can get it to pull 400w. That is 1.5v effective v-core. The E cores package is roughly worth 100w.

P cores only, 180w. So at defaults, the E-cores are worth roughly 73w. Wait till you realize this thing pushes 85-90c anyways....

2P cores at 6.9ghz 1.66v effective, 1 core usage reported 61w. So if both cores used, closer to 125w.

Yes, I haveth screen shots of all this. I do not have a screen shot of default effective working v-core, but I want to say it droops to 1.288v with LLC lvl3. Or third to lowest setting. 253w.

I found you can easily cool 4ghz on air. I mean 4ghz Cache, 4ghz P-cores and 4ghz E-cores manually dialed in, I like to set LLC high to prevent v-droop though. It helps. 0.950v to 1.0v does the trick nicely.
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Tune it the way you want to. But Intel designed them to hit 100c and throttle or droop frequency after a time period if throttle is never reached. Turbo boost time limits is why I manually clock. The cpu is probably drooping on people in game no doubt. Just doesn't seem people talk about it, perhaps it's just not realized. AMD on the other hand boosts and droops with thermals. Seems to have better control. Intel, nah Fk it. Just roast it and it'll droop it's way back to 99c eventually... haha.

 

[fusseli]

I have been pondering, does ram speed or 1.45v ram effect cpu temperatures due to the IMC? It occurs to me that my 7200 is rock solid stable but could be part of the 14700K heat.

My 13900KS was stable at 4x16gb at 6400 but I’ve since moved it to 2x48gb of 6600 Dominator Titanium that is also stable and runs cool at 6.1. After a few minutes of 8 cores at 5.6 (p core only) it is maybe 87C and sustained single thread at 6.1 is 80C. All cores it runs 5.0-5.6 at 90C (it appears to throttle but never goes over 90C). It’s an older H150i RGB Elite 360mm AIO and no contact frame / stock intel. All as reported by AI Suite:
VCore 1.225v
CPU L2 1.216v
CPU SA 1.297v
MC 1.368v
CPU input 1.825v
CPU-z ST score 967

 

[Carlyle2020hs]

If 1.45 is the default voltage, no.
Otherwise a fan is in order if a stick goes above 52c.

Thanks for the pics. Nice cable management.

Could you shoot a macro pic of your cpu die after a fresh AIO removal pls?
Use a scondary light source to let the surface reflect the pastes imprint (try more than one angle).

i´ll take a coolers imprint as well

I can´t judge the mount or your handywork without proper nudes please

ps
You will remeber the first time you´ve closed the OG cpu mount and how hard it was?
Now it isn´t anymore since the cpu gave in a little.

Stop switching around the LGA mounts please and only use the aftermarket one.

You´ve mucked it up in the first place to try the OG one.
Now it will take months and at least three digits of heat cycles for the cpu to relax (almost) into its original form

Don´t use Loctite.
That´s only for virgin cpus that get embedded directly into a frame.

 

[ir_cow]

I have been pondering, does ram speed or 1.45v ram effect cpu temperatures due to the IMC? It occurs to me that my 7200 is rock solid stable but could be part of the 14700K heat.

I don't think it causes CPU temp to go up, but I did observe memory erroring up if the CPU temp is too high. Like for example I can run 8600 MT/s without a CPU OC but with it on I'm stuck at 8200 long term and 8400 for a few hours.

 

[InVasMani]

You should be able to drop the L2, SA, CPU input a bit. Bumping up Vcore and to smaller extent MC can help if you're pushing higher peak frequency. The other stuff I didn't find mattered as much and in cases you can benefit from reducing them a bit though in the case L2 it impacts the cache performance and expectations some around that though you can reduce heat due to running higher speed and get more CPU frequency within power limits and ICCMAX instead conversely slowly which is a bit of a trade off. If you're running a bit lower MT/s and cache frequency with lower ring it's kind of a trade off. What works best is bound to vary by workload some extent. If you're trying to get like peak memory bandwidth MT/s and cache performance you probably don't want to do that, but for higher CPU frequency and ST/MT performance within heat and power budget which often outweighs the other benefits you might consider it.

Depends on software too if you're fine with more shorter burst performance as opposed to like Cinebench roasting your CPU in longer term benchmark what's more ideal with differ quite a bit on tuning. That said focusing more on short turbo burst performance and if you need more sustained performance dropping multiplier by like x1 isn't too difficult to improved sustained performance.

 

[fusseli]

Here’s the H115i when I took it off of the 14700K

And for my 14700K as reported by GBCC getting the high temps mentioned during all-core stress test:
Vcore 1.296v (Auto) and 1.332v (Normal) -- (bios setting)
CPU VDD2 1.4v
CPD DRAM Vdd/VddQ 1.125v
CPU input 1.8v
CPU-z ST score 912 (5.6 / all-core performance profile, but 99-100C all core load)

 

[kiddagoat]

You've mentioned instability and persistent nuisances since owning the board. I would remove any and all OC except for the XMP on the RAM. When I had my 13700K, I never really had many issues keeping it cool with a custom loop. Unless of course I ran something CPU intensive, and it would get into the low 90s. I was also using a thermalright contact frame.

Those chips are tuned pretty well out of the box and will boost accordingly.

You are trying to reign in the temps, so again turn everything back to stock for now to get a base line. I would highly recommend enforcing the intel default of 253W for the time being.

 

[fusseli]

You've mentioned instability and persistent nuisances since owning the board. I would remove any and all OC except for the XMP on the RAM. When I had my 13700K, I never really had many issues keeping it cool with a custom loop. Unless of course I ran something CPU intensive, and it would get into the low 90s. I was also using a thermalright contact frame.

Those chips are tuned pretty well out of the box and will boost accordingly.

You are trying to reign in the temps, so again turn everything back to stock for now to get a base line. I would highly recommend enforcing the intel default of 253W for the time being.

At all stock/auto, 14700K is getting:
Vcore 1.3v actually spikes up to 1.31v-1.36v under all core load
93C all-core stress test
67C single core
CPU-Z 881/14122

Gaming ~50% cpu load, 67C

 

[kiddagoat]

That seems more in line with the proper power limits. Before the power limits were enforced, my 13700k would regularly go 1.4-1.5V.

I also ended up having a defective chip that died after about a year.

Until it died, it had similar temps to what you are getting now.

 

[InVasMani]

Those temps seem reasonably normal. It should idle about 30c to 35c if you're on water or even less depending on your ambient temps.

 

[fusseli]

Those temps seem reasonably normal. It should idle about 30c to 35c if you're on water or even less depending on your ambient temps.

Yeah that is my idle range.

Maybe I just have a bad cpu/mobo combo and isn't ever going to OC well

 

[kiddagoat]

You have to factor in too that these newer CPUs are pushed to their limits out of the box. Any sort of gains with OC will come from undervolting to allow the chip to maintain those boost speeds while keeping thermal/power limits in check.

I am in the minority here as I don't OC and tinker like I used to, but I would just leave it for now and enjoy your system. The maybe 2-3% gains aren't worth it unless you are shooting for some leaderboard on a benchmark chart. The days of getting massive OC gains are over, be it CPU or GPU.