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NumLock21

Intel 10th gen i5 non-K also gets STIM treatment

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Posted · Original PosterOP

With the latest Intel 10th gen CPUs from Intel, we know so far is, those unlocked SKU uses STIM. Turns out, Intel is doing the same thing on their non-K CPUs too, but they have also mixed it with those that don't use STIM and just standard thermal paste. The 2 types of CPUs,

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Q0 and G1 steppings have different SPEC codes. For the Core i5-10400F, the Q0 stepping variant's SPEC code is "SRH79" and the G1 stepping variant's code is "SRH3D."

On the physical end, they're both different, but we can't see it when it's still sealed in the box, so buyers will have to look at the label to find out what CPU they're getting. Also 10th K CPU uses a thin-die STIM, where the die is shaved and a thicker IHS is added, and or those i5 Intel may uses standard STIM. Only way to find out is to delid and measure the thickness of those IHS on those STIM i5, to find out what STIM process it's being used. No words if Intel is also doing this with the rest of the 10th gen.

 

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https://www.techpowerup.com/267757/psa-there-are-two-steppings-of-non-k-10th-gen-core-i5-in-circulation-only-one-comes-with-stim

 


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Yeah der8auer already delided the 10900K and measured the dimensions of the new die & PCB and talked about the effectiveness of the improved STIM:

 


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Why don't they just make chips bigger so heat can disperse better ? making things small only makes sense if you wanna put it into a laptop or mobile device, really hate this trend of making everything smaller while increasing heat output.

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10 hours ago, NumLock21 said:

With the latest Intel 10th gen CPUs from Intel, we know so far is, those unlocked SKU uses STIM. Turns out, Intel is doing the same thing on their non-K CPUs too, but they have also mixed it with those that don't use STIM and just standard thermal paste.

Intel have 6-8-10 core versions of the die. Lower core count products could be provided by salvaged higher core dies. I wonder if that might be a factor here.

 

2 minutes ago, Escanor said:

Why don't they just make chips bigger so heat can disperse better ? making things small only makes sense if you wanna put it into a laptop or mobile device, really hate this trend of making everything smaller while increasing heat output.

Silicon area costs money. The smaller the area used, the more you can make, and the more profit you can make. The bigger example of this is Zen 2, they're power efficient yet still run hotter than you might expect because the cores are so small now.


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Too little too late?

 

 


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I can already see the threads with people complaining that their 10400 is 20*C hotter than what they saw in "X" review and they'll be nothing we can do but tell them they have the pasty version 🙁

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1 hour ago, porina said:

Intel have 6-8-10 core versions of the die. Lower core count products could be provided by salvaged higher core dies. I wonder if that might be a factor here.

 

Silicon area costs money. The smaller the area used, the more you can make, and the more profit you can make. The bigger example of this is Zen 2, they're power efficient yet still run hotter than you might expect because the cores are so small now.

 

So basically Intel is greedy

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Just now, Escanor said:

So basically Intel is greedy

Blasphemy!

You will burn!


... but I'm no expert

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4 hours ago, Escanor said:

Why don't they just make chips bigger so heat can disperse better ? making things small only makes sense if you wanna put it into a laptop or mobile device, really hate this trend of making everything smaller while increasing heat output.

Increasing die size reduces the amount of chips that can be produced from a single wafer, and increases the chance of a given chip to fail QC. 
 

More time consuming and expensive, not to mention that Intel is already struggling to keep up with demand as it is. 


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24 minutes ago, Zodiark1593 said:

Increasing die size reduces the amount of chips that can be produced from a single wafer, and increases the chance of a given chip to fail QC. 
 

More time consuming and expensive, not to mention that Intel is already struggling to keep up with demand as it is. 

Not to mention it would likely mean a new socket which means new motherboards for no particular reason.


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I mean makes sense. This is arguably a large result of binning then. Chips that were processed as higher end then failed the bin have different stuff than the chips that were always destined for mediocrity.

 

Not that different than the second type of 2060? was it that Nvidia ended up putting out that under certain loads is closer to a 2080 than a 2060...

 

As long as the minimum specs are all met by the shitty one, awareness is about all that is required. Not replacing good with bad afterall. There is just some good in with the normal.


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13 minutes ago, Curufinwe_wins said:

I mean makes sense. This is arguably a large result of binning then. Chips that were processed as higher end then failed the bin have different stuff than the chips that were always destined for mediocrity.

 

Not that different than the second type of 2060? was it that Nvidia ended up putting out that under certain loads is closer to a 2080 than a 2060...

 

As long as the minimum specs are all met by the shitty one, awareness is about all that is required. Not replacing good with bad afterall. There is just some good in with the normal.

Kind of like when I bake cookies. Not every cookie turns out perfect. Those that make the cut are the ones I give to the person paying me for them. The ones that fall short in some way (visually, or slightly over/under done) are kept by myself or given away at lower cost/free. 😛

 


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Remember when we slapped CPU coolers straight on top of the core? Who also remembers having chipped core edges? :D

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5 hours ago, huilun02 said:

Too little too late?

 

 

Wait, he is saying that slower memory slows the i5 10400?That is also true for AMD's CPUs...

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Posted · Original PosterOP
5 hours ago, porina said:

Intel have 6-8-10 core versions of the die. Lower core count products could be provided by salvaged higher core dies. I wonder if that might be a factor here.

 

From the article

Quote

For these chips, four cores on the 10-core die are disabled by Intel to carve out the 6-core/12-thread Core i5 SKU. The G1 stepping, on the other hand, is based on the 6-core variant of "Comet Lake-S," which is similar in design to the 6-core "Coffee Lake" die. The G1-stepping chips lack STIM, and use a thermal paste.

 


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2 hours ago, NumLock21 said:

From the article

Sometimes I should click the link :D 


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4 hours ago, RejZoR said:

Remember when we slapped CPU coolers straight on top of the core? Who also remembers having chipped core edges? :D

 

You mean in those amd duron days and athlon days ? yeah defiantly remember never chipped one tho.

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16 hours ago, Escanor said:

 

So basically Intel is greedy

I mean YES most definitely but also do remember they've been having 14nm shortages for almost 2 years now... If they made chips take up more space; they wouldn't be able to produce as many of them, only making their shortages worse.


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23 hours ago, MyName13 said:

Wait, he is saying that slower memory slows the i5 10400?That is also true for AMD's CPUs...

But on a budget boards (B series) with an AMD CPU you can run the memory at it's maximum capacity. However intel's budget board, that is the B and the H series only allow a maximum of 2600mhz, and I don't think anyone will be getting a high end, more costly Z490 board meant for overclocking to run a locked i5 10400. GN makes a similar point in the video.

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3 hours ago, AndreiArgeanu said:

But on a budget boards (B series) with an AMD CPU you can run the memory at it's maximum capacity. However intel's budget board, that is the B and the H series only allow a maximum of 2933mhz, and I don't think anyone will be getting a high end, more costly Z490 board meant for overclocking to run a locked i5 10400. GN makes a similar point in the video.

B/H boards are limited to 2666, not 2933

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7 minutes ago, 5x5 said:

B/H boards are limited to 2666, not 2933

Aren't the new H/B series up to 2933Mhz ?


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5 minutes ago, Void Master said:

Aren't the new H/B series up to 2933Mhz ?

From what I saw in the GN videos they're 2666. You may be thinking of laptops which do get 2933 now

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22 minutes ago, 5x5 said:

From what I saw in the GN videos they're 2666. You may be thinking of laptops which do get 2933 now

 

If you are talking about official support, then you are right.

But most H/B series motherboards support 2933 (at least the new ones), unofficially.

When i search for H470/B460/H410 mobos from different manufacturers, most of them state 2933 support in their specs, Even H410.

For example the Prime H410M-A from ASUS: https://www.asus.com/Motherboards/PRIME-H410M-A/specifications/

But what's weird that the i5 10400 for example supports only up to 2666mhz (officially):  https://ark.intel.com/content/www/us/en/ark/products/199271/intel-core-i5-10400-processor-12m-cache-up-to-4-30-ghz.html

I guess the new H/B series can unofficially run the memory speed of the i5 10400 above spec or only on i7s and i9s ?

But who will pair an i7 or i9 with an H/B series motherboard ?

Confusing AF


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