Undervolting might eke out a bit more performance on this cpu, since at a lower voltage it can run a higher frequency at the same wattage, in theory. I've heard of such things. Assuming the BIOS supports that, of course. Also wondering if the better CPU supports a better ram speed.

Have you considered using a different heatsink? I believe there are some copper heatsinks available for the 65W models. These heatsinks also contained heatpipes. I think they also had thermal pads attached to them to cool the VRM.

@thinhdora

26 күн бұрын

That's interesting idea. However, as you can see, the CPU power can be maintained at 35W consistently (35W is the board limit for the CPU), so I doubt that VRM heatsink could help. Anyway, I will try if I can find that kind of heatsink. Thanks for your idea!

i have subscribed, like your expereiments

@thinhdora

25 күн бұрын

Thanks for your support!

bro u insane , i bought an new Dell Precision Tower 5820 with i9 10920x 128ram and RTX a2000 12gb for 400$ , and deside to do some mini itx setup with a2000 + to upgrade cooling system cause 10920x is overhitting and saw u videos about it , fanatstic thank you !

In Hogwarts you say almost no improvement. While FPS wise yes, but you'll notice the stuttering with the i7 was non-existent. It had processing headroom vs the i5 hitting near 100%. I think the i7 upgrade is more practical if you're looking for smoother gameplay and better 1% lows as opposed to higher fps simply because the i7 has more headroom to not bottleneck processing your game and other tasks.

@thinhdora

26 күн бұрын

You're right. The 1% low did improve, I also regcognized it at 1:56 while benchmarking. In gameplay, however, since the previous test run with 8500T with ThottleStop, I could play the game smoothly without noticable stuttering (only sometimes when teleport between locations). So personally, I didn't feel much different in that game. Maybe the Hogwarts isn't heavy enough to reveal the 1% low difference.

An 8-core 16-thread Xeon E-2278GEL would keep the 35w TDP for more stable power delivery and thermals.

I've got the same set up with an i7-8700T. Glad u did a comparison. Looks like it won't be worth it for me to upgrade to the i7-9700.

ANOTHER ONEEEEE

Use the copper heatsink, or at a minimum add some cooling to VRM with thermal pads or a fan. Also 8700 is better than 9700 due to hyperthreading. If chasing performance make sure you are using Dual Rank memory (if it is 16GB make sure it has 16 chips per memory stick. Or it says "2Rx8". Or "Ranks: Dual" in CPUz. I have better CPUz score with dual rank 2400 than single rank 2666. (Rank does not mean channel. Run dual rank and dual channel.). Also run GhostSpectre to turn off what meltdown/spectre mitigations you may have. And possibly use older BIOS without microcode updates.

Good project, i follow it from the beginning with unconcealed interest. Couple of thougts: Afaik there are hardware locked 35w cpu power-limit in ur motherboard (m920q), and in m920x cpu tdp is bumped up to 65w. My suggestion is to replace mobo and cpu cooler from 920q to 920x model. CPU TDP will rise to 65w *BUT* motherboard's VRM would not be able to supply both 65w cpu and 75w gpu at once. So furtherly u would need either dedicated second PSU for gpu *OR* splitting power from ur current psu to 2 lines. Seems like its possible in this way: lenovo's standard PSU's voltage is 20v and gpu needs 12v. U can solder 2 wires L/N directly to mobo's square yellow lenovo mobo power connector, then reduce it from 20v to 12v with DC-DC module and then solder 2 wires L/N from this module to GPU 90degree expansion card 12v pins underneath of PCI-E slot according to pinout scheme. In this case u would get 2 independent power lines for cpu and gpu from one PSU without current strict limits. It sounds pretty tough to be honest but achievable in theory.

DELL Optiplex 7040 Micro??

is that true that t variant are cheaper than the base model

@NomstersoN

25 күн бұрын

it`s kinda based on your area, but t variants are slower in comparison, so it`s usually true, unless your local used market is really messed up

dell optiplex 790 + arc a750

Try removing power limits using throttlestop

@thinhdora

26 күн бұрын

Thanks for your idea. The ThottleStop was used in the tests.

can i plox buy the case u didnt use btw

@thinhdora

26 күн бұрын

Thanks for your support. Unfortunately, I don't have plan to sell anything. Hope you enjoy the videos!

your system is begging for more watts man, the problem with mini pc or laptop are there's no way to increase them. whether you change the power brick from 65w to 300w, the system will still cap the power draw from the wall to it's original spec. I think your system will run better if the gpu draw power separately from the motherboard, those i7 definitely can running at 4.5+ ghz all core with no problem if it doesn't being considerate with his power-hungry neighbour haha.

now get a i9 lol or upgrade stuff that you wouldnt think like ram and storage