The new trend in stupidity - science not required. - Page 1
Forum section: electronics / general

author: Shock
author_rank: Super Contributor
timestamp: April 27, 2016, 10:53:48 am
content: Give it a few years and you will be ostracized for wearing an antistatic wristband or using ESD safe tools. Of course the moment they have a defective part they instantly cry foul and blame the manufacturer for making poor products or the part died by itself.

author: RGB255_0_0
author_rank: Frequent Contributor
timestamp: April 27, 2016, 11:29:18 am
content: Lol Jay's shit has hit this place

author: hans
author_rank: Super Contributor
timestamp: April 27, 2016, 11:41:30 am
content: I wouldn't take such a channel that seriously. Their role of existence is entertainment primarily, which can be deducted from the montage work/style (just like barnacules). And that's OK, as long as it doesn't set the new standard O0As for the point proven, it doesn't really proof or disproof much. Too much thermal paste still exists, at the point there is so much paste that it is a thick coat which adds thermal resistance.How likely/large of an effect? Probably very small considering on how you tighten up a heatsink on that board. The paste just spreads out, and in this case, there is not much that can short out (non-conductive).As for ESD, my take on is that it's very hard to kill assembled boards. Power rails will likely have ceramic caps that can 'absorb' an ESD event to a few volts residual. I won't say it's best practice or anything, but it likely won't kill the board straight away.Any enclosed product that's worth it's name should have ESD and (basic) I/O protection for everything that connects outside.Cannot say the same for sensitive signals nets like high-impedance nodes, MOSFET gates, etc. And probably also for unmounted parts. So to avoid that, it's probably wise to hold a board near the edges

author: RGB255_0_0
author_rank: Frequent Contributor
timestamp: April 27, 2016, 12:07:56 pm
content: Jay has virtually no respect in the watercooling circle over on overclock.netLet's take this:He blamed the colour changing on Mayhems. So he switched fluid to a different brand. And guess what? Two/three videos ago his fluid changed colour. Now he's blaming the radiator and flux.

author: SeanB
author_rank: Super Contributor
timestamp: April 27, 2016, 12:41:51 pm
content: Fluid changing colour is either an electrochemical reaction or bacterial growth. Electrochemical easiest to fix using a pure glycol and inhibitor pack, and the biofilm is only fixable with a toxin in the water. I run a cooling loop on a machine at work, and solved the electrochemistry by anodising the internal paths of the cooling blocks thicker using an organic acid ( Abscorbic acid actually not acetic, as I had 2kg of it which was expired) and solved the biofilm by running it with a 1% KI solution, which has not grown a biofilm in years. as it is in a mostly copper and brass system, with plastic piping everywhere, and is unsealed it is working well. Just have to top up every few months to take care of losses from evaporation and service use losses. Works better than the last preservative I used, sodium metabisulphide, which was in there at 5%, but still some bacteria lived on it and made a film which clogged up everything.Ironically I bought and started using the KI 2 months before Fukushima made KI a best seller, and I had a 500g of analytic grade ( only one they had in stock at my local supplier) that I used 200g of, so still have some left. Still the same water.

author: RGB255_0_0
author_rank: Frequent Contributor
timestamp: April 27, 2016, 01:01:44 pm
content: I use Ethylene Glycol-based antifreeze 1:10 with distilled ratio in my PC for water cooling. Kills both the corrosion issue and biocide growth inhibitor.When it comes to PC parts, most are nickel-plated or all-copper blocks with copper radiators. There is some stainless steel in the pump and CPU block also; and some people use some silver as a biocide.

author: dannyf
author_rank: Super Contributor
timestamp: April 27, 2016, 01:03:06 pm
content: Two branches if the same stupidity:1. Absolutism in science. To those people,, science is absolute and everything.2. Science in name only: lots of research that use science as a disguise for political agenda and economic interests.I'm sure the list goes on and on.

author: Jeroen3
author_rank: Super Contributor
timestamp: April 27, 2016, 01:08:22 pm
content: Making the card swim in isopropanol alcohol is indeed the correct way to make your room smell awful.You can have endless conversations about esd, but most parts and boards can be handled by a normal human. Not by John Fleece on a PVC garden table, but normal humans.There are exceptions, but these mostly apply to very expensive parts or circuits. And when you're dealing with those, you're often into your stuff.And you can flex pcb's a lot. They even make flexible pcb's! The only problem is that some parts do not like this and might get micro-cracks in the solder joint that will play up later. During the warranty period or after. That's why professionals don't flex boards, it's a liability thing. Which also applies to ESD.

author: RGB255_0_0
author_rank: Frequent Contributor
timestamp: April 27, 2016, 01:17:56 pm
content: Quote from: Jeroen3 on April 27, 2016, 01:08:22 pmWell, graphics cards tend to flex normally with just the weight of the cooler, when held by the slot and PCI bracket. Some manufacturers do put backplates and some don't.It's often made into a joke:

author: Mechanical Menace
author_rank: Super Contributor
timestamp: April 27, 2016, 01:53:11 pm
content: Quote from: RGB255_0_0 on April 27, 2016, 01:17:56 pmThat's why I stopped using tower cases (well any case where the mobo is held vertically) for anything that needs a discrete GPU about 8 years ago.

author: CatalinaWOW
author_rank: Super Contributor
timestamp: April 27, 2016, 02:03:14 pm
content: Quote from: Jeroen3 on April 27, 2016, 01:08:22 pmAll of this is true. But! Murphy rules. The rare case where something suffers from ESD or a broken solder joint always seems to come where it really matters. If you are doing something where failure could cause you real problems it pays to be careful. So if it is your .mp3 player go for it. If it is the payroll computer, more care.

author: Zbig
author_rank: Frequent Contributor
timestamp: April 27, 2016, 03:31:00 pm
content: Haven't really watched the video and have no opinion on the guy. But when I skipped to some random point and hit "Pause", it froze like this so I'll leave it here. Maybe someone needs a new avatar or something.

author: ZeTeX
author_rank: Frequent Contributor
timestamp: April 27, 2016, 06:57:41 pm
content: Quote from: Zbig on April 27, 2016, 03:31:00 pmnot as good as this one:

author: Smokey
author_rank: Super Contributor
timestamp: April 27, 2016, 09:09:26 pm
content: https://en.wikipedia.org/wiki/Duck_face

author: wblock
author_rank: Regular Contributor
timestamp: April 28, 2016, 12:28:42 am
content: That's an awfully long video to say that non-conductive heatsink compound does not conduct.