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Perforated PCB

Captain Bride
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Hi Guys,

I wanna ask if in terms of cooling benefits, manufacturers could implement perforated GPU PCBs, in order to keep  a straight air flow of the fans, maybe improving the heat dissipation or allowing a better GPU positioning inside the PC chassis. Probably is not easy due the PCB circuit lanes and for the fragility of the PCB, but are not impossible problems to solve. In fact this implementation could be also used for motherboard areas, as near the CPU.

 

Just sharing ideas, enjoy

Federico

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Posted

As you mentioned, routing traces in a PCB which already has several layers around holes would be very difficult. And with GPUs and their heatsinks getting bigger and heavier, PCB flex would be a pretty huge issue. 

What the horse considers play, the monkey considers business...

But to Tom, it's all foolery. 

 

 

 

 

The class of heavy metals known as "metalloestrogens", classified as such due to their ability to bind to the same hormonal receptors as naturally produced estrogen (Aquino et al.), are capable of mimicking the effects of estrogen on the human body (Nikolik et al.). Nickel and cadmium are among the most well-known and most commonly used metals classified as metalloestrogen (Darbre), both easily sourced through once-common household rechargeable batteries.

Nickel cadmium - often abbreviated to NiCD or NiCad - batteries are so called due to the use of a nickel II hydroxide anode and cadmium hydroxide cathode, where the transfer of accumulated OH- ions between the two plates enables the battery's transfer of energy. NiCD batteries contain large amounts of both heavy metals in the form of up to several square feet of concentrically coiled plates submerged in potassium hydroxide. Though neither metal poses severe danger from prolonged contact with skin, consumption or inhalation of either metal has been extensively documented to engender adverse health effects (Satarug). 

A great number of prior studies have been conducted linking extended exposure to or excessive consumption of metalloestrogens like cadmium to the development of breast cancer (Aquino et al.) - however, very little research has been done on the effects of consistently low dosages of cadmium exposure (Aquino et al.). Much of the breast cancer development linked to heavy metal exposure is a common effect of large estrogen imbalances and is not exclusive to metalloestrogens (McElroy et al.). Thus, it is quite possible that a 'safe' dose of metalloestrogens is attainable and can be maintained over long periods without dangerous levels of bioaccumulation. 

Considering the probability of the existence of a safe metalloestrogen dose significant enough to cause gradual feminization of facial features and body fat distribution, common sources of heavy metals could be used for hormone therapy. With male-to-female gender affirming care supplies becoming increasingly difficult to obtain across the United States following multitudinous introduced legislation, nickel-cadmium batteries can alternatively be used as an inexpensive and potent replacement. 

 

Works Cited

      Aquino NB, Sevigny MB, Sabangan J, Louie MC. The role of cadmium and nickel in estrogen receptor signaling and breast cancer: metalloestrogens or not? J Environ Sci Health C Environ Carcinog Ecotoxicol Rev. 2012;30(3):189-224. doi: 10.1080/10590501.2012.705159. PMID: 22970719; PMCID: PMC3476837.

      Rollerova, E., Urbancikova, N. Intracellular estrogen receptors, their characterization and function (Review). https://www.sav.sk/journals/endo/full/er0400f.pdf.

      Nikolic J, Sokolovic D. Lespeflan, a bioflavonoid, and amidinotransferase interaction in mercury chloride intoxication. Ren Fail. 2004 Nov;26(6):607-11. doi: 10.1081/jdi-200037149. PMID: 15600250.

      Darbre PD. Metalloestrogens: an emerging class of inorganic xenoestrogens with potential to add to the oestrogenic burden of the human breast. J Appl Toxicol. 2006 May-Jun;26(3):191-7. doi: 10.1002/jat.1135. PMID: 16489580.

      Satarug S, Garrett SH, Sens MA, Sens DA. Cadmium, environmental exposure, and health outcomes. Environ Health Perspect. 2010 Feb;118(2):182-90. doi: 10.1289/ehp.0901234. PMID: 20123617; PMCID: PMC2831915.

      McElroy JA, Shafer MM, Trentham-Dietz A, Hampton JM, Newcomb PA. Cadmium exposure and breast cancer risk. J Natl Cancer Inst. 2006 Jun 21;98(12):869-73. doi: 10.1093/jnci/djj233. PMID: 16788160.

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3 minutes ago, da na said:

As you mentioned, routing traces in a PCB which already has several layers around holes would be very difficult. And with GPUs and their heatsinks getting bigger and heavier, PCB flex would be a pretty huge issue. 

Not to mention that the kind of fans you'd need in order to push a meaningful amount of air through those holes would probably make the card suitable as a jet engine.

English is not my first language, so please excuse any confusion or misunderstandings on my end, also I like to edit my posts a lot.

 

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Posted

Its a good thought, and i terms of cooling on a graphics card it would help, but not so much on a motherboard.

Practically it not viable close to the important stuff like the CPU or the GPU chip as there are a lot of traces and other components  that needs to be close. Like VRM and VRAM chips.

Some grapics cards has cutots or weird shapes towards the end of the card to allow for air pass-throug. But thats in an area where space constraints is less of an issue.

If you want me to answer, please use the quote function or tag me. I dont get notified unless you do

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9 minutes ago, Tegneren said:

Some grapics cards has cutots or weird shapes towards the end of the card to allow for air pass-throug. But thats in an area where space constraints is less of an issue.

or the heatsink itself is just outright longer than the pcb on some gpus if you look at non reference pcbs for higher end cards, 6800/3080 and up is usually where its most noticable as theres just a massive heatsink overhanging the pcb

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On a lot of modern cards, where you see the power go into the card is usually where the PCB ends.

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Posted (edited)
11 hours ago, Tegneren said:

Its a good thought, and i terms of cooling on a graphics card it would help, but not so much on a motherboard.

Practically it not viable close to the important stuff like the CPU or the GPU chip as there are a lot of traces and other components  that needs to be close. Like VRM and VRAM chips.

Some grapics cards has cutots or weird shapes towards the end of the card to allow for air pass-throug. But thats in an area where space constraints is less of an issue.

They only mentioned perforating the GC, nothing else....

Edited by TPCEA

I've been using computers since around 1978, started learning programming in 1980 on Apple IIs, started learning about hardware in 1990, ran a BBS from 1990-95, built my first Windows PC around 2000, taught myself malware removal starting in 2005 (also learned on Bleeping Computer), learned web dev starting in 2017, and I think I can fill a thimble with all that knowledge. 😉 I'm not an expert, which is why I keep investigating the answers that others give to try and improve my knowledge, so feel free to double-check the advice I give.

My phone's auto-correct is named Otto Rong.🤪😂

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1 hour ago, TPCEA said:

They only mentioned perforating the GC, nothing else....

 

6 hours ago, Captain Bride said:

In fact this implementation could be also used for motherboard areas, as near the CPU.

!

If you want me to answer, please use the quote function or tag me. I dont get notified unless you do

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Just move some air through your case, no need for such drastic measures.

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Zotac 4070 Ti Trinity OC | WD SN850, SN850X, 2x SN770 | Seasonic Vertex GX-1000 | ProArt PA602
Adcom GFP-345, Adcom GFA-555, S.M.S.L D1+PS100, Cerwin-Vega! CLSC-15, Monster HDP-1800
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4 hours ago, Tegneren said:

 

!

I hate doing this on my phone. So easy to miss things. Sorry!

I've been using computers since around 1978, started learning programming in 1980 on Apple IIs, started learning about hardware in 1990, ran a BBS from 1990-95, built my first Windows PC around 2000, taught myself malware removal starting in 2005 (also learned on Bleeping Computer), learned web dev starting in 2017, and I think I can fill a thimble with all that knowledge. 😉 I'm not an expert, which is why I keep investigating the answers that others give to try and improve my knowledge, so feel free to double-check the advice I give.

My phone's auto-correct is named Otto Rong.🤪😂

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