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Showing content with the highest reputation on 03/16/11 in all areas

  1. 3 points
    Constructing a Power Supply Cooler *Time to complete project under an hour. To complete this project you will need -Some kind of powertool to help cut metal and drill holes -Bolts to mount hardware -Small screw driver philips or flathead depending on the bolts and screws you have -Pliers to fasten hardware with bolts -A case fan or cpu fan -An adapter that changes the fan wire to that of the kind of powersupply wire you are using -A basic powersupply from an old computer -Rubber or foam pads for feet and spacers -A steady hand when cutting metal -Most of these fans operate at 12volts DC. For a fan power cable that uses 3pin fan mainboard cable such as certain fans from cpu coolers that connect to the motherboard, use 3pin fan to 4pin molex converter cable (the fan in the cooler used in the guide used a 3pin fan to 4pin molex connectionfan connection I used the 3pin to 4pin 12volt powersupply connector). *Possible parts to purchase -3pin fan to 4pin molex connector $1.99 http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=4602357&CatId=82 -Hard Drive Cooler $6.99 *uses 4pin molex 12volt power supply connector http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=39596&CatId=495 -Case Fan $2.99 *uses 4pin molez 12volt power supply connector http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=6666430&CatId=494 -Case Fan 2 $3.99 *uses 4pin molex 12volt powersupply connector http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=6721529&CatId=494 -Power Supply Power Cord $4.69 http://www.amazon.com/gp/offer-listing/B000Q7Q420/ref=dp_olp_all_mbc?ie=UTF8&qid=1300268611&sr=1-1&condition=all -Powersupply $9.99 *has 4 4pin molex 12volt power cables http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=6610958&CatId=4324 -External 3 1/2inch hard drive enclosure $14.99 *12Volt PSU included would use 4pin molex (similar to one used in guide) http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=3950007&CatId=2780 http://forum.techinferno.com/members/brian-k--albums3-200.htm Pic 18 This shows the type of bolts I used. Note you can screw them together end to end. These are basic mounting bolts for a motherboard to sit on and bolt to. http://forum.techinferno.com/members/brian-k--albums3-207.htm Pic 12 This shows the pliers I used, the philips screw driver and the foam pads. http://forum.techinferno.com/members/brian-k--albums3-199.htm Pic 19 Shows the type of fan you can use with the proper power wire and a converter from standard power cord to that of a cpucase fan. http://forum.techinferno.com/members/brian-k--albums3-192.htm Pic 23 Shows a common cpu heatsink and fan combo common to hardware that's a little older. No one wants old computers all the better to get free spare parts from. If you can salvage an old system, even if it's just to utilize the old power supply and cpu or case fans then your already recycling and saving money. http://forum.techinferno.com/members/brian-k--albums3-215.htm Pic 5 Shows the inside of the external hard drive enclosure I chose to re-use for this project. The hard drive enclosure is displayed opened up andshowing how the hard drive sits inside case. Note the hard drive, it's a 3 1/2 inch drive connected with an ide drive cable. http://forum.techinferno.com/members/brian-k--albums3-204.htm Pic 14 Shows the holes made through top of the enclosure. The holes I made are just a little smaller than the thickness of a bic pen. A drill will work just fine here. It's up to you how many holes and their spacing. Though having giant holes will leave only enough room for a few holes and too much air will be directed only through the holes directly over the fan we will be installing instead of spreading over the entire surface of cooler and powersupply. http://forum.techinferno.com/members/brian-k--albums3-218.htm Pic 3 Shows the fan in place on the inside of the aluminum enclosure. The fan is faced so air is pulled into the aluminum enclosure. The large hole on the bottom of the enclosure matches up with the size of the inner guards of the fan so that inner circle encompassing the fan blade is the same size as the hole made in the bottom of the coolers chassis. I would trace a marker around the inside piece of the fan on to aluminum enclosure in order to accurately cut the right size hole. I used a dremel to cut the hole out. I found if you hold the dremel with two hands and find a way to secure enclosure from moving, that short but firm traces over the marked circle is usually accurate enough to cut. If you try to go fast or have the dremel on to fast it makes it harder to cut and you tend to bounce and skim the surface. Also if a dremel is not available but a drill is you can use the same theory but hold tighter on drill, go slower and I would even make sure the drill bit is in the drill as far as possible so when your pressing on drill bit side ways it don't break and you have more control over where it goes. Note the 4 bolts sticking out of the chassis. Mark the holes using the fan as a guide and drill the holes needed to mount the fan on the inside over the large hole on bottom of enclosure. http://forum.techinferno.com/members/brian-k--albums3-212.htm Pic 7 This is a picture of the need to hold the inside nut in place with small pliers while tightening the outside bolt to mount fan. http://forum.techinferno.com/members/brian-k--albums3-211.htm Pic 8 This is what it should look like inside when you've mounted fan over fan hole you made earlier. http://forum.techinferno.com/members/brian-k--albums3-206.htm Pic 13 Another shot of the end cap off of chassis and fan mounted over fan hole on inside of enclosure. http://forum.techinferno.com/members/brian-k--albums3-216.htm Pic4 You can see another angle of the bottom of the unit. I used a basic foam rubber pad found in shipping packaging as feet and as a spacer between cooler and power supply. The plastic end cap is also visible from this angle. http://forum.techinferno.com/members/brian-k--albums3-202.htm Pic 16 Here you can see the finished unit plugged in with it's own ac adapter like power supply... the one original to the hard drive enclosure. http://forum.techinferno.com/members/brian-k--albums3-191.htm Pic 24 Shows the unit ready for action plugged in and turned on. Testing the units ability to cool a overheating mobile powersupply http://forum.techinferno.com/members/brian-k--albums3-220.htm Pic 1 Screen shot before starting a test to show the powersupply heating up under a non-stock tdp of 98 and dells stock tdc of 62 with Throttle Stop. using Intel Burn test in 8 thread mode with maximum available memory to fully load all 4 cores of the 920XM, I took this screen shot showing what settings will be used for the duration of this demonstration. Note also Throttle Stop is on and chip-set clock modulation is set to 100% with the multiplier set to turbo so to prevent thermal and power throttling and maintain highest dynamic turbo frequency possible for a given moments temperature and power draw. If the previous mentioned settings allow the processor to run out of spec beyond it's thermal and power limits, which I will show raises the powersupply's temperature (with the powersupply flat on the table like most users place them) well beyond idle temperatures, average and heavy load temperatures for a laptop's AC/DC power-supply adapter. This could lower the life expectancy of any electronic device. http://forum.techinferno.com/members/brian-k--albums3-210.htm Pic 9 8:28pm, idle on desktop for 10 minutes @ 101-102 degrees Farenheit. The temps are being recorded by taping the contact point of a thermal wire coming from a volt-meter set in thermal mode on Farenheit. As a way to determine the validity of these temperatures, the temperature read for the room by not touching the contact wire to any surface at all (at the moment) read 80 degrees farenheit which is fairly accurate being that the ambient temperture in my computer room is about 78 on average unless I block my heat vent in my room. See temperature in picture below. http://forum.techinferno.com/members/brian-k--albums3-196.htm Pic 20 8:29PM I started IBT, immediately after launching I decided to adjust the TDP to 130 and TDC to 110 because I didn't see high enough frequencies to truly push the PS. Since the graphics weren't being stressed at the same time this was my way of exceeding the powersupplys's normal thermal and power specification. I set 100 tests to ensure IBT wouldn't finish or stop stressing the processor before my testing was done. 8:53PM 112 degrees has been reached so far. http://forum.techinferno.com/members/brian-k--albums3-195.htm Pic 21 Temps are 114 degrees and continue rising. http://forum.techinferno.com/members/brian-k--albums3-219.htm Pic 2 9:53PM 115 degrees is reached and maintained. That's 3 degrees higher than the powersupply was 1 hour before. With IBT still pressing on I decide to wait a little longer to watch if there is anymore increases in temperature. http://forum.techinferno.com/members/brian-k--albums3-213.htm Pic 6 Screenshot of Intel Burn Test continuing to stress the processor 9:54 pm while waiting to utilize cooler for second half of test. http://forum.techinferno.com/members/brian-k--albums3-208.htm Pic 11 10:01 pm with the power-supply still maintaining a temperature of 115 degrees I place the power-supply on the cooler off of the table where it had been sitting as designed on it's feet. http://forum.techinferno.com/members/brian-k--albums3-201.htm Pic 17 Immediately the temperature readout lowers by 1 degree to 114. 10:03 pm just 2 minutes later and still under maximum load from IBT the temperature reads as 112 degrees. 10:29 only 28 minutes after placing the power-supply on the cooler the temperature has dropped by 14 degrees from the 115 degrees to 101 degrees still under 100% load since 8:29. Nearly a hour and a half of building heat and stress the cooler has already managed the heat that is in excess of the idle temperature that came from IBT in only 28 minutes of using the cooler. Amazingly the cooler returns temperatures to the the idle temps recorded when we started, which were 101 to 102 degrees with Intel Burn Test still running 100%. I press on. http://forum.techinferno.com/members/brian-k--albums3-203.htm Pic 15 12:29 Intel Burn Test is still running 100% and temperature still dropped lower than idle temps with no cooler. At 98 degrees there has been a total drop under 100% load of 17 degrees over 4 hours of IBT running at 100% cpu usage about 2 1/2 hours of which the cooler had been utilized. After recording temperatures I proceeded to end the Intel Burn Test run. http://forum.techinferno.com/members/brian-k--albums3-209.htm Pic 10 I recorded 88 degrees about 20 minutes after ending the Intel Burn Test run. 14 degrees lower than the 102 degrees idle temps without cooler. http://www.youtube.com/watch?v=avpM0GWOxLs Video This video shows the cooler plugged in and running. After-Thoughts *You could also use sheet metal cut to the length of the power supply. The width will need to be about double the width of the powersupply plus about 2 inches for the height (that's 1 inch for each side and an extra inch to overlap ends). Drill extra 4 holes through top along seam where you would overlap the sheet metal about 1 inch. I would clamp the piece in place before drilling or mark out both ends and drill while the sheet is flat. Use small bolts and nuts to fasten the sheet metal together into an enclosure shaped like the the hard drive enclosue I used to make my cooler. Take the enclosure and shove it into a larger piece of styrofoam. Pull out the enclosure and cut out the rest of the styro-foam piece, use this piece to insert into the end of enclosure as a cap for your enclosure. Maybe tape end up firmly to make a good seal for air pressure. Repeat for other side except you'll need to make a slit in styro foam to stick your wires through on the other side. Drill holes on side with seam and make a large hole as big as the size of your fans fan blades on the bottom like in the guide above. Follow the above instructions the same with this sheet-metal enclosure in place of the aluminum pre fabricated enclosure I used. *You can buy a fish tank thermometer or any flat sticker-like thermometer and attach it to your power supply to keep track of your temperatures at a glance. *Attach a heatsink from one of those sealed liquid cooled heatsinks you can buy with the included radiator and fan to your powersupply. Place radiator in a place that can vent the heat. *Make a second unit to place on top of the powersupply (in addition to the first cooler unit) aiming down at the top. You can even utilize the same powersupply. *Please I encourage everyone to get creative or atleast find a similar cooling solution. You can buy a hard drive cooler which is not quite the same design but would work the same way if used it to cool your powersupply. Please post your ideas and your own projects or solutions you find for your powersupply here for everyone to build ideas from. *Depending on how many cables are available on the powersupply you use for the cooler you can plug in extra fans for an additonal cooling system for your laptop at the same time. This validates utilizing a seperate powersupply for your cooler. No waste here!
  2. 1 point
    Well we know some places don't allow this kind of discussion but this is Tech|Inferno, not only do we allow it, we encourage it! So I'll start first: M17x-R2 Pros: Dual 5870M is still FASTER than a single 6970M in most cases M17x-R2 RGB LED can't be matched The 920/940xm + TS combo beats a 2820qm and there is no 2920xm for R3 currently. Construction: Aluminum vs Trojan Rubber. 'Nuff said. Unlocked bios by TheWiz and possible GPU upgrades coming ala Crossfire 6970M. Has been around longer and is now a very stable system. You can grab it cheap on the Dell outlet. Better touch panel. IMO looks better than R3. M17x-R2 Cons: Older chipset + CPU architecture No official 6970M love from Dell Slightly heavier M17x-R3 Pros Sandy Bridge + Cougar Point (once it's revised haha) Newer design that may appeal to some. Lighter than R2 and thinner. Soft Touch Rubber 120 Hz 3D display technology Extended battery life thanks to graphics switching tech (optimius + amd manual switching) Low starting price M17x-R3 Cons: Soft touch rubber flakes off - rut roh! It has been reported that the CPU throttles (DaneGRClose can confirm this) No RGB LED No dual card support So there you have it, that's my list and my overall preference goes to the R2. R3 would have been in my sig if it had dual card support despite it's inferior build quality and lack of RGB LED. Don't like my reasons? Well bring it!
  3. 1 point
    The information you requested has been added to the post. Glad you like it.
  4. 1 point
    Theres a pretty big difference between 6970 and gtx285 in power consumption, at least a 20 watt jump. However the 480 and 6970 are pretty close. GTX485M - 37 watts idle - 170 watts full load GTX480M - 50 watts idle - 150 watts full load 6970M - 48 watts idle - 148 watts full load *485m - 6970m Source *480m Source
  5. 1 point
    Good news - The M17x-R3 has shipped out and will be here on 3/16. The plan is to take photos + vids of the unboxing processing along with commentary and then to setup the machine for review. The review will take about 1 week to complete the first part. We're estimating a total of 3 articles that will span over 3-4 weeks.
  6. 1 point
    I try to find my stable GPU clocks without CPU overclocking and after I am sure I can finish a benchmark run with those clocks then I start messing with the CPU, I try to see how much I can increase the TDP/TDC to keep the total wattage consumption within acceptable limits for the PSU wprime v1.55 1024M stresses my CPU too much so I cannot maintain the x25 multiplier, nonetheless I can keep it cold enough in order to finish it in 229 seconds I have 3% OC from the BIOS but not voltage increase.
  7. 1 point
    Hmm, I seriously hope that is the case because I have an OEM 920XM, and a 940XM doing the same thing. I was able to put up these numbers today. My mother board is being replaced soon, so I hope that solves it. Was yours giving you the same error as mine? I really hope it's the motherboad that went and not the chips. After frying it how was yours acting ahmadmud? i7 940XM (ES) @ 4359.06MHz CPU-Z Validator 3.1 i7 940XM (ES) wPrime32 6.457 sec I had CPU-Z @ 4378.??MHz, but missed validating it and the FSB speed dropped so I caught it at the next best thing
  8. 1 point
    64Κ are recommended for disks (either SSDs or HDDs) with big capacities (RAID shouldn't be of a concern since the cluster size is not related to the stripe size as the latter is invisible to the OS), you will have better performance but the trade off is less available space if you save too many small files smaller than 64 Kilobytes (ie 1 file with size 2KB will occupy 64KB on your disk, or a file with 65KB will occupy 128KB on your disk). I would be really interested to see how an SSD performs on the R3 in general...
  9. 1 point
  10. 1 point
    Is this enough to feed your M18x rumors guys? Actual screenshot with the link to go with it: Documentation
  11. -1 points
    lol now, if only we could squeeze some more info re: the M18x launch timeframe along with some additional specs - need to see if its truly something worthwhile (personally) atm to holdout for...
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