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onionring

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Everything posted by onionring

  1. onionring

    hd 598

    both the hd558 and hd598 are identical, housing, drivers, cable , all , except there s a piece of foam added on the hd558 that you can remove. there might be some differences between the 2 sets after the mod but i wouldn t ever be able to notice it.
  2. oups, o well my point was more about the relative energy involved so it isnt that bad, most people don t realise going 20% over (it s like an unwritten law here, even the cops wont give you a ticket) you re getting int 1.4x the crash...
  3. i find it so funny whrn some one link a speed vs number of accident chart... of course more people crash when speeding, no one drives the speed limit,(unless they re drunk, that s how you spot them)... so yes stats are working guys... but here s something: the energy of a mass in moting is energy=(mass*speed^2)/2 so if you go 120kmh(75mph) instead of 100kmh(60mph) like the speed limit, there s 41% more energy to dissipate. or if you go 150kmh(90mph), you have 225% of the energy to dissipate... or 200kmh(120mph) you have 400% of the energy you get the idea... yes while cars seams to have improved in recent years, they haven t that much (and they shure as heck cant protect you from a 200kmh crash), with recent fuel consumptions concerns, all of the manifacturers started cutting materiels everywhere. (that includes energy absorption zones) just look at car towing capacity over the years, it keeps going down to prove they re reducing the quantity of materials used. and when you see how some people drive, i shure as heck don t want them going faster, they re having trouble at 100kmh already... but back to the topic, there s nothing more dangerous than not going with the flow of trafic, it might be written 60kmh min on the highway, but if you go at that speed you ll get rear ended in under a minute with all those tecting and driving with the cruise control set at 120kmh coming your way...
  4. so if 300mb means power user? where does my 6gb (3g only) a month (idk with wifi) put me?...
  5. the reason is that fast charging batteries causes LOT of heat to be produced versus slow charging. that product is probably 70% heatsink. if you want to fast charge a phone, you have to design the heat dissipation into the equabition there is a phone idk which one that comes with a 4.5 amp charger from the factory, so it s possible.
  6. nop that wouldn t work, if the water temps get colder than ambient temp inside, condensation will happen, and water on cpu/gpu blocks isn t somethkng you want... and the surface are inside is way smaller than outside so there s no way it ll heat uo the fluid.
  7. lol hyve technology to reduce turbulence and slingshot thing?!? WOW they rly DONT know anyhting about heat transfer. Turbulent air is about tons better than laminar flow ask any one who knows anythign about heat transfer also 10mm fan? you need static pressure to push thru a decent cooler, maybe this one doesn t need tho... I rly hope it s all useless marketting PR, because, if they did design somethign aroudn that they ll be VERY disapointed when they test it out,
  8. nop that s not what i proposed, see my drawing, there s 2 pumps to better control the temperature of the fluid and the individual pumps would only be plugged in the conps when they re out of the main loop.
  9. if the temperature of the water goes below ambient, the humidity in the air will condense on the pipes (like the windows of your car)but in this case the pipes and blocks will drip on your mobo/psu/cpu/gpu. what i proposed for individiual pc is to put the individual pump and reservoir as a unit that will only be put in when the comp is not on the main loop. so either quick connect 1 - cpu - gpu - quick connect 2 - quick connect 2 - indivial res - individual pump - individual rad - quick connect 1 or main loop in - quick connect 1 - cpu - gpu - quick connect 2 - quick connect 2 - main loop out so even if the pc is off liquid will flow thru but that won t have any negative what so ever... pressure regulators are quite reliable from my experience and there would only be 1 of them (since all comps loop are similar, the flow in each would be too) the regulator would only enable you to keep relatively constant flow when comps would be removed from the loop. (it would route excess water back to the res) putting two sets of rads is quite easy btw, it s only 2 valves (or even 1) but you could put more if you want to vent it for winter...
  10. your solution has some problems.1. condensation: the water in the loop cannot go below ambient temperature inside the building than means, 25C (77F) (there s a safety margin here) so you need to control the flow thru the radiators independently from the flow to the pcs. 2. winter happens, which means if you use water, it will freeze.(the comps aren t always on) so you can either use car grade antifreeze (prestone) which isn t great for computer parts, use a water/water heat exchanger to separate pc water from the car antifreeze. use two sets of radiators one outside for summer and one for winter and antifreeze. now for the individual pumps in the computers, you could easily bypass them when plugged to the central cooling by putting the quick connects before and after the pump (quick connect out) (pump inlet-outlet) (check valve) (quick connect in) or since they want to put the computers as stand alone capable, you could put the cpu/gpu block on quick connects inside with the individual rad-pump-res on quick connects and a power hub, both of which will only be power when the compiter is out of the big loop. and the big loop just plugging to the gpu-cpu blocks. now to control the flow rate, you need a pressure regulator to control the pressure at the pc inlet manifold connection which will allow different numbers of pc running without a relatively constant flow
  11. btw car antifreeze is rated at lower than -37C or even -64C, so it won t freeze in the loop (they re in BC, it doesn t rly get cold like the rest of Canada) http://prestone.com/products/antifreeze_coolant/product_list?select_region=1 BUT you don t want that fluid or any fluid at that temperature in computers blocks or rads. There s 2 solutions to this problem, A water-water heat exchanger, separating interior fluid from exterior one, or A second set of rad inside to serve as central heating for the house in the winter. (with pics) or The fans will also be a problem since the noctua fans they want to use are only rated IP52, it s only good for 15 degree dripping water, not rly rainfall like they need if they leave the radiator bare, they would need to make a kind of enclosure to use these fans. Or maybe if they have a shed/garage... they could put the rads in there with the pumps and avoid lots of problems this way...
  12. the lighter your desk is the more it vibrates, if you have a really heavy one it will act as a shockmount Btw i got my blue snowball for 40$ at futureshop on sale, first time ever that something is cheaper there than anywhere else....
  13. btw this wont work as you can t control of the temperature which will cause condensation 9 months of the year... even if you control the speed of the main pump, you ll kinda control the temperature of the system but the flow will become insufficient to feed the comps resulting in cavitation of the smaller pumps.
  14. well it s easier but it s not the point, they want to get the heat outside, the next best thing would be to put the rad in the garage if there is one and they don t use it.
  15. there should be paint on the rad from the factory, so yea but the rads will indeed pack with dust/other things so a little cleaning will be required. they should house the rads in a little enclosure outside with a filter maybe....
  16. It s almost that way, if you put the pump directly inline with the big one feeding the , it s possible the big one could overpower the said small pump and just increase the flow uncontrollably,(well more than what was designed) (justlike a car at idle in gear going down a hill) but if you have balancing valves, you can limit the flow to the loop in the computer, having a pump doesn t mean the flow inside a loop is determined by it, one way to do it is: 1 main pump just circulates water up to the pcs, then each system allows only the amount of flow they need by restricting the flow to them and the rest is regulated by the return restriction. Another way to do it is: Modulating the flow of the main pump to be exactly what the computers need but then you need to control the pump so that the pressure inside the pipe is constant. The main problem i see with using restrictions or controlling the epressure is that the pumps inside could cavitate (the pump doesn t pump if there s negative pressure behind it) which is REALLY bad. Having a reservoir in each system would prevent that from happening but then you need to regulate the flow to prevent the said reservoirs from overflowing.
  17. balancing valves are special valves made to ajust precisely the flow of the system (it s on almost all HVAC systems), gate valves are kinda on-off (not precise), so you can t rly tune with that, but you can try. the issue with the checkvales, if the system is way off, is that they don t prevent a reduction of flow at the outlet of the system, they only try to prevent back flow, it s necessary but totally independent flow is better if the system isn t balanced. (which could happen if the tubing length out of each pc isn t identical (follow the same curve, is at the exact same height) their goal is to prevent the need of an AC unit so i guess they ll put the rads outside, but yes they could put the heat exchanger inside in the winter...
  18. Since they want to put a fully enclosed system in each of the pc, i assume they want to use a reservoir for each so the checkvalve at the intake of each system isn t rly necessary if the res is vented but a balancing valve could be usefull as it would allow to set each system to have exactly the same flow as the others. The check walve at each computer oulet could be usefull tho but i learned to never thrust such valves as at best it will block the flow of one system, it wont allow normal flow at all times. It would be better to run individual lines back to the vented reservoir. (to prevent a system from stalling another one) Yes, a controller , arduino or otherwise, would be needed to control the temperature of the fluid by regulating the pump's flow to avoid condensation.
  19. You should consider moving the computers themselves to another room, server style, the wan show room maybe? (for more exposure for the people giving you the parts (so you could get more)) while you will remove the cpu/gpu heat with the loop, all the other parts will still heat the room. /make some noise since the parts will still need cooling I would run monitor cables and usb extension thru a wall / floor duct bank style and have only the monitor and keyboard in the room. I did that and it rly helped a lot for heat and eliminated all noise where i worked and my pc was cooler as it was in the basement. As far as the condensation part, you could fix it quite easily with two loops in series, you cannot just run it all 100% thru the exterior loop as that will make condensation. you have to control the flow thru the radiators to control the temperature in the reservoir. You need to set the pump2 to keep the water in the interior loop above room temp. btw the second loop need to use Prestone (car antifreeze), the interior loop can use regular computer cooling fluid. See this drawing for the info, i did add my suggestion of remote computers but you get the idea The design needs to have the pump flow adjusted to account for the resistance of each of the pc's loop or you ll destroy the pumps/blocks inside by feeding in too much pressure(unless you put a vented reservoir in each system) Also, the setup drawn under this one also has the benefit of not straining each system's pump by forcing the flow thru them, it just runs the pump1 to circulate the water for it to be available to the systems, there should be a valve/raidators/restrictions near the cold water return (inside) to keep a little bit of restriction. This is exactly like a car fuel setup with a return fuel line, btw. each part(pc) taking only what it needs and never too much. If you cant get a water-water heat exchanger and don t mind both interior and exterior liquids to be antifreeze, this loop could be used:
  20. not to be rude, but splashtop got some updates since 5 years ago, it support gpu encoding and full screen now, yes on amd hardware too.
  21. why? splashtop can do everything a shield can, but it supports some amd cards too. btw the vpn/proxy thing will also work with it.
  22. it s a printer with conductive ink so you can do some pcbs yourself. this isn t supposed to replace a breadboard but once the design is set, it can shrink down the connections (breadboards are big and can be a mess). moving to a pcb reduces the variables when debugging as there will be less contact issues and such. this is in no way trying to print gpus/mobo, (idk where some guys got that) it s for diy robots and such.
  23. they make great hardware for a pfsense router...
  24. well like you said it s shipped form korea thru ebay, this has a good stand, a compagny you can call if things go wrong, etc
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