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Chip blown on mobo

captain_cake
By captain_cake
in Troubleshooting
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Snapchat-490510320.jpg.9af00194188c0b0283eb07818322702c.jpgi bought this mobo on eBay as a temporary replacement until Christmas when I get my permanent mobo but after powering on i heard a pop and some smoke and burning smell. I'm not sure if I'm liable to ask for a replacement from the eBay seller or just wait until Christmas 

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That's the power delivery that popped. You could try and negotiate it with the seller but it isn't necessarily their fault the board died, you might get a partial refund though.

A bit odd to buy a motherboard for "up until Christmas" when that's in 11 days... 

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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Posted

That MOSFET can be replaced as long as you have a matching component but you really want to figure out what caused the problem to start with.
Sometimes just replacing it will fix it, sometimes it's an indication of a more serious problem elsewhere.

You could go ahead and fix it, then see if it does it again or not and if so, you know there is an issue making it blow the MOSFET.

"If you ever need anything please don't hesitate to ask someone else first"..... Nirvana
"Whadda ya mean I ain't kind? Just not your kind"..... Megadeth
Speaking of things being "All Inclusive", Hell itself is too.
 

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1 hour ago, Beerzerker said:

you really want to figure out what caused the problem to start with.

Given the size of the VRM, it's almost certainly because it overheated and killed itself. Generally though if a MOSFET fails, you'll want to replace the driver IC at the same time as when one fails, it usually takes the other with it. 

 

The main thing I'd be concerned about is whether it killed the CPU when the MOSFET died, as that should send 12V directly to the CPU. If the PSU's short circuit protection kicked in fast enough, it's probably OK, but if the CPU is dead fixing the motherboard is almost certainly a pointless endeavor, as that looks like some sort of LGA 115x era CPU and it's almost always cheaper to replace it with something current gen than to buy a replacement CPU. 

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