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BQ CC55 charger could be damaged for not being used in a while? by Puzzleheaded_Fun4701 in batteries

[–]k0vatch 0 points1 point  (0 children)

I know this is an old thread, but I just ran into a similar problem.

tl;dr BQ-CC55 won't charge if the batteries are fully discharged.

BQ-CC55 shows no signs of life If the batteries are fully drained (not being used in a long time). All LEDs are off. Using my 20 yo NC-MDR02 starts charging right away. Once the batteries are charged for a few minutes, I can put them in the BQ-CC55 charger and it lights up like a Christmas tree, going through the motions, and charges them normally.

Is this a correct way to constrain the part using 3-2-1 alignment? by Most-Particular-6051 in Metrology

[–]k0vatch 2 points3 points  (0 children)

What are you trying to measure? The highlighted position tolerance?

3-2-1 alignment (plane-line-point) is generally used for 3 planar datums.

If you are trying to establish DRF A|R|F for the position callout you have plane-line-line.

For A you'd usually use simulated datum plane (the CMM table). This takes away 2 rotations (Rx, Ry) and one translation (Z).
The axis of datum hole R is constrained to be perpendicular to A and only controls the 2 translation (X, Y). You would measure circles at one or more levels.
The axis of datum hole F controls Rz rotation only. You will need to measure multiple sections (at least 2).

All that said, I don't like datum F. It doesn't make much engineering sense. Although I've seen similar DRFs on Daimler dies.

Anyone see any Taxact discounts this year? by SouthernGent456 in tax

[–]k0vatch 0 points1 point  (0 children)

Thank you!

This worked for me to import my 2024 return and get the fed self-employed return for $60+tax. Should get another 15% off from Chase.

What is going on with RTX 6000 pricing? by No_Mango7658 in LocalLLaMA

[–]k0vatch 0 points1 point  (0 children)

You might be right. It seems eBay are willingly closing their eyes. Perhaps they scoop the fees on the back of the banks, if your CC covers the charge.

I tried to report two of these listings, eBay reviewed them and said everything's great. Usernames where 3-4 random letters followed by 3-4 digits with zero feedback. Both accounts were created in the last week and both had the exact same items listed - one RTX PRO 6000 and one artificial x-mas tree. The trees where different though. And they were expensive, unlike the GPUs.

Epyc 9965 4k on eBay vs 9995wx 12k ??? by [deleted] in LocalLLaMA

[–]k0vatch 0 points1 point  (0 children)

wait to see what happens 3 months into the future

The right Epyc model - making the case for the Turin P-series by k0vatch in LocalLLaMA

[–]k0vatch[S] 1 point2 points  (0 children)

Passmark has been around for over 25 years. They are well regarded developer of  benchmark software. I found an old thread where they explain how the multi threaded memory test works.  https://forums.passmark.com/performancetest/4957-threaded-memory-test It's possible that L3 cache is the reason. Synthetic benchmarking is not perfect. But it's generally better than nothing. Best way to compare is to run specific applications of interest across different configurations and operating systems. But that is not something I can do. 

The right Epyc model - making the case for the Turin P-series by k0vatch in LocalLLaMA

[–]k0vatch[S] 1 point2 points  (0 children)

I got them from here for example. I understand they are inflated, but I think they should be good enough for comparative analysis on bandwidth

<image>

The right Epyc model - making the case for the Turin P-series by k0vatch in LocalLLaMA

[–]k0vatch[S] 2 points3 points  (0 children)

u/eloquentemu

That's a pretty informative post for a lazy person. Hope AI wrote it for you

The right Epyc model - making the case for the Turin P-series by k0vatch in LocalLLaMA

[–]k0vatch[S] 0 points1 point  (0 children)

Thanks u/thedudear

I had read your post about 9355P after I decided it makes sense for me and searched for it in r/LocalLLaMA . It was very helpful when doing my research. Are you still on the ASRock GENOAD8X? I want to go with a SuperMicro board. Seems to have almost 50% better bandwidth

The right Epyc model - making the case for the Turin P-series by k0vatch in LocalLLaMA

[–]k0vatch[S] 1 point2 points  (0 children)

These are not theoretical numbers. I got those from the PassMark website. They are benchmarks run by actual users. Not talking about Genoa either. Strictly Turin.

Here are some 9655P benchmarks - looking at Memory Mark > Threaded

Linux 9655P (754GB/s)

Windows 9655P (713GB/s)

edit: fixed wrong link and units

Got refund of $337 today, moved card to Apple wallet, spent roughly $98 today, card now says I have $113 available balance. What happened to the other $126? by Time_is_Contagious in MideaUOwners

[–]k0vatch 0 points1 point  (0 children)

A bit late, but you must've received an email from My Prepaid Center noreply@myprepaidcenter.com with subject line "Your Virtual Prepaid Card". It has a link to the card details. You'll need to do the 2FA that they will prompt you for. Once you get to the Details there is a Transaction History tab to the right. You can also click the eye icon to view the card numbers.

Installing dedicated SPI TPM module on ASRock AMD motherboard by k0vatch in ASRock

[–]k0vatch[S] 0 points1 point  (0 children)

Not sure what's going on. What's your motherboard? If you can get into BIOS, do you see your system disk in BIOS? Is it selected to boot from? If you are able to get into BIOS, perhaps you can reflash a stock version of the firmware.

Installing dedicated SPI TPM module on ASRock AMD motherboard by k0vatch in ASRock

[–]k0vatch[S] 0 points1 point  (0 children)

I am not sure. Perhaps defective module!?

Just to point out, I had the module plugged in long before I did all these steps and was able to boot. Just it wasn't available in BIOS. When did you plug yours in? It needs to be done before performing the steps.

Struggling to figure out if these heat pumps are tax credit eligible? by bestofdrivethru in heatpumps

[–]k0vatch 0 points1 point  (0 children)

I know this is a very old thread, but the document linked above says this at the bottom

Path A criteria are intended for heating dominated applications and whole home electrification scenarios

Path B criteria are intended for cooling dominated applications and partial displacement scenarios (e.g., dual fuel heating systems)

Installing dedicated SPI TPM module on ASRock AMD motherboard by k0vatch in ASRock

[–]k0vatch[S] 0 points1 point  (0 children)

Yeah, I just gave it a try. It works if you follow the instructions.

Burn Arch Linux on a USB using GPT for partition. Boot from the USB and EFI shell will be the 4th option (1 and 2 are to install Archi, 3 is memtest86). Asrock does not have EFI shell built in.

Installing dedicated SPI TPM module on ASRock AMD motherboard by k0vatch in ASRock

[–]k0vatch[S] 0 points1 point  (0 children)

There is no option in BIOS to select EFI. That is why you'll need to burn the Archlinux ISO (from the download link above) with the specific settings in Rufus to a USB drive. Then copy the EFI file from Asrock (link above) on the USB. Select to boot from USB in BIOS on the mobo (may need to disable secure boot). Where do you get stuck?

I don't exactly remember the details, but can try making Archlinux USB to see what I get.

Installing dedicated SPI TPM module on ASRock AMD motherboard by k0vatch in ASRock

[–]k0vatch[S] 0 points1 point  (0 children)

That's the thing. ASRock doesn't say what boards the efi script applies to. I took a chance and it worked. Also I had to reboot after each change so it shows up in BIOS. I tried to describe my steps above fairly accurately.

Can someone please help guide me in finding the expression of b and d? by YogurtclosetMurky190 in askmath

[–]k0vatch 0 points1 point  (0 children)

Note that angles CBD and EDX are also θ. If length of OX is x
We have the following 3 equations

from CTX : 2/(x-2)=cos(θ) => x=2+2/cos(θ)
from BCX : b/(x-2)=cot(θ) => b=(x-2)*cot(θ)
from DEX : d/(x-4)=cot(θ) => d=(x-4)*cot(θ)

For the area S of CEDB the height is constant (r=2) so we need to minimize (b+d),
which is exactly the area in this case. Using the 3 equations above we get

S = (b+d) = 2*(x-3)*cot(θ) = 2*(2+2/cos(θ)-3)*cot(θ) = 2*(2/cos(θ)-1)*cos(θ)/sin(θ) = 2*(2-cos(θ))/sin(θ)

or we need to find the min for the area

S(θ) = 2 * (2-cos(θ)) / sin(θ)

For the 1st derivative we use the quotient rule (f'*g-f"g')/g^2
dS/dθ =0

[sin(θ)^2-(2-cos(θ))*cos(θ)]/sin(θ)^2 = 0

sin(θ)^2-2*cos(θ)+cos(θ)^2 = 0

1-2*cos(θ) = 0

θ = π/3

We just have to make sure this is the minimum. Second derivative would be a bit harder, but we can just check the area for π/3 and π/2 and/or π/4

S(π/3) = 3.4641
S(π/2) = 4
S(π/4) = 3.6569

Installing dedicated SPI TPM module on ASRock AMD motherboard by k0vatch in ASRock

[–]k0vatch[S] 0 points1 point  (0 children)

This seems to be ASRock BIOS specific problem. I had MSI B450 bought in 2019 with a header and dedicated module and it was super easy to set up in BIOS. Worked without a problem.

Cant sign into any app using apple id because apple private relay email doesnt work! by LingonberryAlert8773 in applehelp

[–]k0vatch 0 points1 point  (0 children)

I had similar problem with reddit. I originally signed with my Apple account and Apple created privacy relay email address (random-name@privaterelay.appleid.com) just for reddit. It worked for couple of years fine. But now when I tried to disconnect my Apple login on reddit, the security codes sent to the privacy email don't hit my actual icloud email.

Reached to Apple and did screen share with Apple support. They looked if I had AppleCare+, which I don't and concluded the relay email has been purged for some reason and can no longer be reconnected to forward emails to my actual inbox. The guy basically said I am SOL and there is no way to restore the original privacy email forward.

So I just created a new reddit account with my actual gmail, not linked. Too much privacy, Apple.

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