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Showing results for tags 'negative'.
Found 22 results
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When it comes to case pressure I hear Neutral is the best. I have a s340 and I'm had positive pressure for the most part (maybe a bit too much even). My problem now, is that I've mounted a front radiator, thus taking up both front fan slots. Now my case has negative pressure. I've tested smoke entering the back brackets, So I made some changes to eliminate the Negative Pressure by lowering the Exhaust fan speed. My exhaust fans are now at 45% (500rpms) which I think is ALREADY too low. But still the negative pressure is still there. CASE: 2 Corsair AF120's on the back for case fans INTAKE: 2 NZXT 140 'Aerp' Fans (Static Pressure), with RADIATOR & NZXT x62 Kraken GPU: Msi GTX 970
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Hello everybody, First post on here, but it's a doozy. So I am on V2 of my build, with a i7-7700k (soon to be delided) and GTX 1070, both overclocked and connected to a custom water loop which has a 280mm and 120mm radiators hooked to it inside a Fractal Design Define R5. I know the rad in the photo is a 240, but I bought the EX280 and will be taking the push fans out too, relying on the GP14 fans that came with the case for pull. Problem is, my case pressure is really negative and a month in I'm already getting dust accumulation.. Now, as you can see in the attached photo, I have a POS intake fan on the bottom I want to swap out, but I am having trouble finding the right one to get. When all is said and done, i will have 2 Fractal GP14 fans running at full speed in the front, and a 120 fan for the 120mm (looking at a SP120 for that one). At this point, is there a fan that can sit on the bottom by the PSU that can bring me to neutral pressure, if not positive, without sounding like a jet engine? Or is there a different configuration someone can think of that would improve pressure without sacrificing heat expulsion? I was looking at the Noctua industrial 3000rpm, but that thing is loud, Any thoughts anyone has would be greatly appreciated. Thank you all!
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I have a question I've been pondering for the longest time about two's complement negative numbers. I understand the theory behind two's compliment, you take a number, invert it and add 1 to get the negative equivalent of it for mathematical operations. This much makes sense to me and I can see the benefits of using it over signed values or one's complement. The problem I run into is what happens to the number when the computer wants to put it in memory. Suppose a subtraction operation is performed by the computer like 5 - 6, the result being negative 1. This would look like 11111111 in 8 bit binary, my question is what does the computer do when it stores this number in memory to recall that it was a negative 1 and not a 255?
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My case would have one intake in the front, and one exhaust in the back plus the 2 fans that come with the masterliquid 240, and here is the tricky part. If I use the masterliquid's fans as intake then would it mean that heat from the CPU would get back into the case heating everything else like the gpu, mobo, hdd. If I use it as exhaust then I would have a negative air flow, 3 exhaust versus 1 intake, and negative airflow would mean dust which I really don't want to have in my PC. Is this correct or am I wrong?
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I recently moved my old PC parts to a new chasis along with a new power supply: EVGA supernova 850 g2. Before in in the old chasis the TMPIN0 reading from HWMonitor was usually around 30-35 deg C. Now in the new chasis, it is reading it as -66 deg C. All the other temperatures are fine (30-35 deg C range or lower). What does the negative value mean? Anything serious? PS. Still using an old Dell motherboard that came with my XPS 8700
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Hey guys, I noticed a strange behavior in my PC for months now... at first i though i was temporary but now its showing up frequently. My screen glitches every time the desktop is refreshed,ejecting storage device,inserting storage device,when i close my browser,or a notification pops up. For a fraction of a second the entire or sometimes few blocks of the screen turns negative......it also happens when i unlock my screen....some times it stays like there until i move my mouse. Its been an year since i assembled this PC.......but the monitor is quite old. specs:- ryzen 3 1200 gtx 1050ti asus phoenix 8gb ddr4 2400mhz 450w psu windows 10 OS i have attached a screenshot on how it looks like..... If anyone knows what this is and what is the problem please reply with a solution. Thank You.
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Hi I’m wondering how bad negative pressure in your case is. I will have 6 and 3 intakes. Other than sucking in dust, is there any performances gain or loss between negative and positive pressures? Thanks.
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I've already made a thread about MSI afterburner not giving constant numbers where i gave up and installed EVGA precision X which is fine but... i opened it back up to do some light tuning on my laptop and it said my card was at negative 21Ghz (not physically possible,) is it safe to set it back to +260Mhz (where i start loosing stability)?
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I'm connecting my panel connectors to the motherboard but I don't know which side is ground on my power switch. One side is marked by a arrow.
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I am thinking of getting the Corsair H80i liquid cooler and mounting it to the back (or I could choose the CoolerMaster Hyper 212 evo instead). The H80i comes with 2 SP120 PWM fans. My case comes with 1 120mm LED fan at the front and 1 120mm at the back, which I would move to the bottom. I am struggling to find out whether the included fans are Air Flow or Static Pressure, I assume AF. I would like to buy a second LED fan to complete the look of the front, but since it is in front of hard drive bays, I would go with a static pressure fan. Both front fans would be intake. I'd also like LEDs on the top so I am thinking of going for 2 air flow quiet edition fans. So, I am thinking of having 2 led 120mm intake fans in the front, 1 air flow (i think) and 1 static pressure, 2 led 120mm air flow quiet edition exhaust fans in the top, the stock H80i static pressure fans at the back, and 1 120mm air flow (i think) exhaust fan at the bottom. Is this a good choice or shall I change some of my options? What kind of pressure will this give me - positive, neutral, or negative?
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I have enough fans to fill the case btw
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Hey guys, I'm running a corsair 750d case with stock fans (2 in the front, 1 in the back). To that i've added a h100 water cooling which is exhausting air throught the top of the case. I'm also running a nvidia card with reference external exhaust cooling. My problem is I seem to be having negative pressure in the case and every hole is filling with dust. The question is, what is the best way to reconfigure to get positive pressure? I really appreciate your answers
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Hey good people at LinusTech and good users of this forums =), I recently bought a new PC and I want to make the airflow for better and optimal cooling. , since I never owned an expensive computer (for my standards) I never cared about cooling or temperatures. But now that I do I want to make everything ''perfect'' so to speak so my hardware stays alive for as long as possible. I made a simple sketch to show how is my current airflow setup and by watching the videos from Linus I think this is positive pressure. Since I live near an airport and I have to keep the balcony door open due to not having AC there is a high accumulation of dust in the room, and because of that I have all fan slots covered with aluminium dust filters (even the outtake fans when the PC is off) More information about the fans All 6 fans that are additionally installed are 120 mm Cooler Master Jetflo Blue LED so that makes 2 at the top of the case connected to 4 pin chassis fan slots and are regulated by the temperature of the CPU, other 4 are connected to a PSU with extended adapters and are working at 1200 rpm. So sum it up 2 fans are outtake fans and 1 is at the top of the case , the other one is at the back + the GPU that's blowing the air out. 4 fans are intake fans and one is located at the top , 1 at the bottom and 2 at the front of the case. I do not have anything blocking the air , I took the HDD trays out and positioned my SSD and HDD at the place where optical drivers were supposed to be. Cable management is done on the side of the case so no cables are obstructing the airflow either. CPU cooler is Cooler Master 212 EVO Air Cooler GPU uses stock reference blower fan and pushes the air out in the back (which makes it another exhaust fan =P cptn.obvious) PSU us located at the bottom and takes air from under the case (no effect on airflow as it is a closed system by itself) I have put the sketch I made for the purpose of this post in the post and as an attachment, so refer to that for easier visual understanding. So now to the question for all the ppl who know stuff about this stuff =) Is this airflow good or bad or really god or really bad , and can it be improved in any way (dust accumulation , better temperatures and ect) Is the pressure negative , positive or neutral ? Is the fan on the bottom of the case conflicting with two intake fans at the front of the case? If I change the top fan to be another outtake would it improve the airflow or would it make it worse? If I change the top fan to be intake would it conflict with the outtake on the back ? Any tips for improvement would be appreciated. After I sort this out in the best way possible I will make post on some forums and articles on some blogs and even a video about the airflow for yt. Thanks in advance for reading this long post and for any help / tips about the situation. Oh an one other thing, I cant afford water cooling anytime soon. So water cooling is out of the question unless someone have extra water cooling stuff that they don't need =P. My Rig: MBO - Asus Z97-P CPU - i7 4790k GPU - GTX 980Ti Reference RAM - 16Gb Corsair 1600Mhz 4x4Gb PSU - EVGA 650w Gold Cert. Modular 80 Plus STR - 120Gb Kingston SSD for OS + 2TB HDD WD Blue 7.2k rpm CASE- NZXT Tempest 410 Elite Black
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Hello misters and mistresses I ran shadows of mordor benchmark 10 minutes ago to see if my 970 is affected by the infamous memory problem. OSD shows 4,7gb memory usage and GPU-Z shows this (attached) Any idea why?
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So i was gonna get a H440 case and i dont know how i should go about air pressure. The H440 has: 3x 120mm intake fans 1x 140mm exhaust fan And then to the issue. I was gonna get a nzxt kraken x61 (yes im gonna overclock). If i mount it as an intake at the top ill have massive positive air pressure but if i mount it as an exhaust idk the air pressure but the cooling effect will be worse as it will take hot air from the case. I was gonna use an msi gtx 980 with the aftermarket cooler so it will fit in better with the red and black build. But then it will spit out heat into the case making the kraken less effective if i make it an exhaust. Im getting the nzxt x61 instead of the x41 cause it was only 20€ more expensive and the bigger the radiator, the better the overclock. I didnt buy the cheaper x60 cause the x61 software is easier to use and is more silent during idle with its various diffrent pump speeds. How should i mount it? Or should i get the smaller x41?
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I love everyone involved with LMG, so that's a pretty good preface to this decidedly pointed comment. I see a lot of myself in Luke, which may be why I feel the need to make this observation. He seems to enjoy being right at the expense of others being wrong. This is a larger problem with our planet, but I've decided to put him on trial here. If one person is able to glean a more positive world view because of our eviscerating Luke for his misguided enthusiasm, it will be worthwhile. Also, remember, much love. Maybe a nice challenge for Mr Luke would be to try and shy away from scathing sarcastic glares and pandering. Not to do away with these entirely, but try and take a page from Linus' book where he's more going for a mass appeal. You're alienating yourself when you arrogantly dismiss i-Phones. I'll admit this is a bit of a vent session, and nobody can argue like family, but am I the only one who feels this way? I want to host a "douche-intervention", not that he's a douche ;-) We could even make it fun, like giving him a good public shaming which could double as promotion for LMG! I want the best for our friend Luke. Luke, taking this course will only make you funnier, more sharp and like I mentioned before give you more likability in general. I thought our Canadian neighbors were meant to be our more polite counterparts. Much love, keep on keepin' on, but don't become jaded and callous too early in your life, save some for the next decade B-)
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I am having an argument with another person that argues that CoolerMaster Silencio fans are better for case cooling than Noctua fans because it is specifically designed for case cooling while Noctua fans are for CPU cooling only. Apart from Noctua being expensive and not as quiet, I do not know how this cheap Silencio fan from CoolerMaster that couldn't even produce 50CFM and 1.0 mmH20 is better than Noctua fans (ie NF-F12) for cooling cases. Is there something wrong with using pressure-optimised fans as case fans? Why do companies have two types of fans (Airflow-optimised and Pressure-optimised) even though Pressure-optimised fans can do both case airflow and pressure? Generally, high pressure fans do produce high airflow (CFM) too. It is not like airflow decreases when you increase static pressure. Am I wrong? Thanks!
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I am planning to get a Corsair 900D (switched from Cosmos II) and plan to use this setup as airflow (possibly Negative Pressure?): 280mm Radiator (CM Nepton 280L) on top w/ 3x 140mm Intake Fans 3x 120mm Front Intake Fans 8x 120mm Side Exhaust Fans (both sides) 1x 120mm Rear Exhaust Fans 1x 120mm Middle Fan as Exhaust from the Front Intake Fans to the Rear Exhaust Fan Is there any other ways to optimize air pressure? Please tell me about your recommendations/opinions/advises. Thanks p.s. I thought about making the Left, Front, and Top as Intakes, and the Right and Rear as Exhausts, but that would mean Positive Pressure, right?
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I'm rather confused about positive air pressure, negative pressure and balanced air pressure. Sometimes I see builds where the person has 3 120mm fans at the front, a dual 140mm rad with the appropriate fans installed, with only a single static pressure 140mm fan in the rear acting as an exhaust fan. That seems to be a build with a LOT of positive air pressure. But I also see opposite, and it seems to be pretty hard to have a balanced air pressure. I just need some clarification on what's acceptable within the world of air pressure in a case for optimal performance. Thanks.
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My Thermaltake Overseer RX-I has a Thermaltake Pure 20 LED, which is 800 RPM, and the top is 600-800 RPM and the original front is the second top which is 600 RPM. My rear fan is now the bottom fan and it taken by a liquid cooler. Either way, this creates a negative air pressure. Some other forums have talked about it, and they both have pros and cons. Obviously equal is the best. But not all cases have equal fan sizes and speeds. The case has dust filters everywhere, so dust isn't a problem. All I want to know is: what's YOUR case air pressure? +, -, or =?
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What type of airflow do I want for a BitFenix Prodigy? Mainly positive vs. negative pressure inside the case. I want to draw in air from the top through an H100i in pull configuration to make use of the filtering mesh. The front fan is naturally going to be an intake and the back an exhaust. Given that the front and back fans are displacing the same amount of air I should be left with a positive pressure inside the case, which is good (right?). But seeing as the GPU will be taking in air from the side vent, I'm afraid that the positive air pressure will inhibit the GPU from taking in enough air, since potentially warm air from inside the case will try to escape though that vent. I'm fairly new to PCs and this is the first build I plan myself, so I might just be over-thinking the matter. But I want some advice from more experienced builders. The Prodigy seems really nice, so I want to be completely sure before I take it off my list of potential cases. I couldn't find an answer to this specific question anywhere, but if you've stumbled upon it feel free to provide a link, I'd be very grateful. ^-^ Also, since I'm in the early stages of planing I'm open to ideas, so recommendations to other cases or fan setups would be "cool". (lol get it, cause this is about cooling solutions... I'll just stop now...) Thanks in advance! ;D -
So in my arc midi r2, I have two, fractal 140mm intake fans (front) , 3 fractal 140 exhaust fans (top), h80i rear, SP120 quiet editions push/pull. There is more fans exhausting than fans intaking so i believe it is negative air pressure. The problem is there is a lot of dust due to the air in my room (with carpet floor) being filled with dust and then that air is being sucked in through all the small vents on my case. I would like it if someone suggested what would be a better fan set-up that uses positive air pressure... PS, my psu is too large to fit another intake fan at bottom
