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mariushm

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  1. Informative
    mariushm got a reaction from BlackVirus in Travel Adapters - Do they affect power delivery of fast chargers abroad?   
    Look on your Anker charger, and see on the label if it supports wide input voltage or not. It should support something like 90v AC  to 250v AC.
     
    If it supports only 110v AC give or take some small range then you can only use it in 110v countries, or you would need to use a 220/230v to 110v converter to power your charger.  That converter would need to be rated for at least around 150 watts (maximum output of your Anker plus around 20-30% of that so 120 + 120/4 =150 watts
     
    If it supports the whole input voltage range, then you can use any adapter to convert the AC / input plug to that country's plug shape and the charger will be able to take as much power as it needs from the wall.
     
    The output capability won't change no matter the input.
  2. Like
    mariushm reacted to IanSzot in Our LAN Parties will be INSANE   
    Get a Barco laser projector, go big or go home
     
    and as someone who works in big productions and have built many LED walls, I'd suggest like the other guy said and get a nice quality LED wall.
     
    Roe makes some of the highest quality panels on the market and paired with Brompton processor and cards you can get high refresh rate screens with HDR. These two together are used all over the world in virtual production studios and in live events.
     
    The downsides: Cost, power usage and it wouldn't be as plug-and-play as a projector is, but after setting it up it pretty much is.
     
    Give them a call and see what they can do for you, might come cheaper and better than buying high grade projectors and lenses but your visitors will love it and it works at any lighting condition
  3. Like
    mariushm got a reaction from Makeytrain in Exploding corsair link hub   
    The electrolytic capacitor vented, blew up.  it usually does that when it's subjected to reverse voltage or too much voltage or due to some other critical failure. 
     
    You could desolder the base and replace with another capacitor, it's probably something like 470uF 16v electrolytic or something like that.  
    Cleaning all the electrolyte with some isopropyl alcohol or other solvents is a must.  The contacts that go in the pci-e slot or 
     
    Make sure you didn't plug the connectors the wrong way or make sure they're not at an angle or partially inserted potentially causing some kind of short. 
     
    So basically it may be repairable, if you're lucky it's just a 20-50 cent capacitor.
  4. Informative
    mariushm got a reaction from Blazepoint5 in Does ram affect GPU or PC performance?   
    The RAM is not used only by the game. It's also used by the operating system and other programs you may have running in background (browsers, discord, other things).
     
    Yes, ram amount matters. 
    Running in dual channel (2 sticks) also improves performance, up to 5-10% extra performance in some situations. 
     
    Some processors are more sensitive about frequency : for example, there's a noticeable performance increase on Ryzen processors going from 2666 Mhz to 3000 Mhz and 3200 Mhz and a bit less noticeable from 3200 to 3600 or more. Intel processors used to be less sensitive about frequency.
     
     
     
  5. Agree
    mariushm got a reaction from Blasty Blosty in I'm looking to get a top of the line ethernet cable   
    Any plain cat6 or cat6a cable... you don't need anything fancier.
     
    These are good for up to 10gbps, cat6 is limited to around 55 meters at 10gbps or 100 meters at 5gbps or less. Cat6a goes the whole 100 meters.
     
    If possible, try to avoid the cables that use CCA (copper coated aluminum) and get full copper cable which should be a bit more expensive.  But CCA cables work fine for short lengths (like 10-15 meters), you wouldn't notice any difference.
     
    Depending on length, shouldn't cost more than $10-20.
     
     
  6. Agree
    mariushm got a reaction from SkilledRebuilds in I'm looking to get a top of the line ethernet cable   
    Any plain cat6 or cat6a cable... you don't need anything fancier.
     
    These are good for up to 10gbps, cat6 is limited to around 55 meters at 10gbps or 100 meters at 5gbps or less. Cat6a goes the whole 100 meters.
     
    If possible, try to avoid the cables that use CCA (copper coated aluminum) and get full copper cable which should be a bit more expensive.  But CCA cables work fine for short lengths (like 10-15 meters), you wouldn't notice any difference.
     
    Depending on length, shouldn't cost more than $10-20.
     
     
  7. Agree
    mariushm got a reaction from Blue4130 in I'm looking to get a top of the line ethernet cable   
    Any plain cat6 or cat6a cable... you don't need anything fancier.
     
    These are good for up to 10gbps, cat6 is limited to around 55 meters at 10gbps or 100 meters at 5gbps or less. Cat6a goes the whole 100 meters.
     
    If possible, try to avoid the cables that use CCA (copper coated aluminum) and get full copper cable which should be a bit more expensive.  But CCA cables work fine for short lengths (like 10-15 meters), you wouldn't notice any difference.
     
    Depending on length, shouldn't cost more than $10-20.
     
     
  8. Agree
    mariushm got a reaction from Somerandomtechyboi in Need power source options for powerful fans   
    It's probably 6300,0  rpm or some mistake in description.
     
    But anyway for both fans... You can power them by connecting them directly to the ATX power supply.
     
    Take out the 12v and ground wires from the connector, and connect them to a molex or sata connector. Molex would be better, it's rated for 5A of current, your fan says it can do 4.35A max.  SATA is only good for 4.5A of current.
     
    You can control the speed through the pwm wire just like with any other fan, connect that wire and the ground wire (duplicate it if needed) to the fan controller or the motherboard fan header.
     
    And there's more powerful fans available than that...  for example this Sanyo Denki 140mm fan runs at up to 7600 rpm and eats up to 55 watts :  9GV1412P1G001
    or this delta model that goes up to 7400 rpm and 44.5 watts : PFR1212DHE-SP00
  9. Informative
    mariushm got a reaction from RevGAM in Need power source options for powerful fans   
    It's probably 6300,0  rpm or some mistake in description.
     
    But anyway for both fans... You can power them by connecting them directly to the ATX power supply.
     
    Take out the 12v and ground wires from the connector, and connect them to a molex or sata connector. Molex would be better, it's rated for 5A of current, your fan says it can do 4.35A max.  SATA is only good for 4.5A of current.
     
    You can control the speed through the pwm wire just like with any other fan, connect that wire and the ground wire (duplicate it if needed) to the fan controller or the motherboard fan header.
     
    And there's more powerful fans available than that...  for example this Sanyo Denki 140mm fan runs at up to 7600 rpm and eats up to 55 watts :  9GV1412P1G001
    or this delta model that goes up to 7400 rpm and 44.5 watts : PFR1212DHE-SP00
  10. Like
    mariushm got a reaction from RockSolid1106 in I live in Pune, India, but my IPv4 address shows the location of Nagpur, India, which results in high ping.   
    Your ISP bought a bunch of IP addresses and decided to your current IP range in your town.  The IP assigned to you may have been used in Nagpur a week ago or some time ago ... the databases are not updated daily and can report bad locations. The IP alone doesn't "store" any information about where it is used, the databases are built by automated bots who look through what computers the data packets go and using other methods.
     
    As soon as those databases will be updated, random applications like speedtest will detect you correctly in your town and suggest a test server closer to you.
     
    It's possible your ISP had to shuffle IPs around and route the internet data through different ways to work around those fiber cables that were cut under the ocean ... the data that went through those fiber cables may now be moved through other fiber cables.
     
     
  11. Like
    mariushm got a reaction from Lurick in I live in Pune, India, but my IPv4 address shows the location of Nagpur, India, which results in high ping.   
    Your ISP bought a bunch of IP addresses and decided to your current IP range in your town.  The IP assigned to you may have been used in Nagpur a week ago or some time ago ... the databases are not updated daily and can report bad locations. The IP alone doesn't "store" any information about where it is used, the databases are built by automated bots who look through what computers the data packets go and using other methods.
     
    As soon as those databases will be updated, random applications like speedtest will detect you correctly in your town and suggest a test server closer to you.
     
    It's possible your ISP had to shuffle IPs around and route the internet data through different ways to work around those fiber cables that were cut under the ocean ... the data that went through those fiber cables may now be moved through other fiber cables.
     
     
  12. Like
    mariushm got a reaction from RetroSmoo in Most Hours Played Thread?   
    I was basically addicted to left 4 dead 2 ... played 8-12 hours a day for a period... decided it wasn't healthy and gave it up one day
     
    I played fallout games and other games more outside steam, only bought them after I got my first job and could afford to buy them legally.
     

  13. Like
    mariushm got a reaction from mldonkey in Server configuration tips for highly parallel workloads   
    Contact the seller and ask him to give you a price for dual socket mobo AND two 7601 (or look for a Zen 2 gen cpu) and the coolers and ram compatible with the motherboard he can recommends for dual socket. May help you if you say you also saw the threads on ServeTheHome : https://forums.servethehome.com/index.php?threads/amd-epyc-7302p-supermicro-h11ssl-i-version-2.37913/page-16
     
    For ram, if you plan to populate all ram slots eventually, it's not worth going over 2666 mhz, boards won't support more with naples. With 8 ram slots if you go with 32 GB sticks, you'd be limited to 256 GB per socket ... 64 GB sticks still pack a premium over 32 GB sticks and if you want 64 GB sticks mention it to the seller, because some mobos support 64 GB sticks only with revision 2 of a board and some boards don't support 64 GB sticks at all with the Naples generation (which 7601 and 7451 belong to)
     
    There's also some other minor gotchas, like some motherboards may not even boot without at least 4 ram sticks per cpu socket, or you get serious latency issues with less than 4 sticks.
     
    The board in the 709$ bundled package is rev 2 so it supports  up to 2666 mhz ram and supports up to 256 GB sticks but as I said, 64 GB and higher sticks will cost more, and you'll need at least 2 possibly 4 per socket.
     
    He may be willing to give you a better price if you go with a bigger bundle, and promise to get back to him to buy more ram.
     
    if it helps, dual socket cpus, naples  (7001 series) :
     
    24 cores
    AMD EPYC 7401 - PS7401BEVHCAF / PS7401BEAFWOF
    AMD EPYC 7451 - PS7451BDVHCAF / PS7451BDAFWOF
     
    32 cores

    AMD EPYC 7501 - PS7501BEVIHAF / PS7501BEAFWOF
    AMD EPYC 7551 - PS7551BDVIHAF / PS7551BDAFWOF
    AMD EPYC 7571 - PS7571BDVIHAF
    AMD EPYC 7601 - PS7601BDVIHAF / PS7601BDAFWOF
     

     
    dual socket 7002  
     
    24 cores
     
    AMD EPYC 7352 - 100-000000077 / 100-100000077WOF
    AMD EPYC 7402 - 100-000000046 / 100-100000046WOF
    AMD EPYC 7F72 - 100-000000141 / 100-000000141WOF
     
    32 cores

    AMD EPYC 7452 - 100-000000057 / 100-100000057WOF
    AMD EPYC 7502 - 100-000000054 / 100-100000054WOF
    AMD EPYC 7532 - 100-000000136 / 100-000000136WOF
    AMD EPYC 7542 - 100-000000075 / 100-100000075WOF
     
    48 cores
     
    AMD EPYC 7552 - 100-000000076 / 100-100000076WOF
    AMD EPYC 7642 - 100-000000074 / 100-100000074WOF
     
    64 cores
     
    AMD EPYC 7662 - 100-000000137 / 100-000000137WOF
    AMD EPYC 7702 - 100-000000038 / 100-100000038WOF
    AMD EPYC 7742 - 100-000000053 / 100-100000053WOF
    AMD EPYC 7H12 - 100-000000055 / 100-100000055WOF
     

     
     
    tables are from cpu world ... ex https://www.cpu-world.com/CPUs/Zen/AMD-EPYC 7662.html
     
    you can sort of compare performance looking on cpubenchmark.net , see https://www.cpubenchmark.net/cpu_list.php
     
     
  14. Like
    mariushm got a reaction from mldonkey in Server configuration tips for highly parallel workloads   
    There's a seller on eBay with good reputation that sells Epyc processors and motherboards pulled from working servers or new old stock, his store was also linked at ServeTheHome forums and replied to questions there as well
     
    He also has cpu+mobo deals and ram for these servers.. here's the store : https://www.ebay.com/sch/i.html?_ssn=tugm4470&store_name=tugm4470&_oac=1&_sop=16
     
    For example $5900 for  Supermicro H13SSL-N+AMD Genoa-X EPYC 9V33X(9684X OEM)96C/192T 1152MB 400W  : https://www.ebay.com/itm/176064038015
     
    But anyway, more to your budget ... motherboards separately are $250-500, of course some can go into thousands
     
    examples
     
    $388  Gigabyte mz32-ar0 motherboard Rev 1.0 for supports the 7001 7002 7003 seriescpu | eBay
    $388 ASUS KRPA-U16 motherboard supports AMD EPYC7002 series PCIE4.0 servers | eBay
     
    $425 DUAL SOCKET Supermicro H11DSI dual-socket motherboard AMD EPYC server motherboard REV2.0, | eBay
     
    $435 DUAL SOCKET Supermicro h11dsi-nt 10 Gigabit Ethernet port supports dualAMD epyc 7001/7002cpu | eBay
     
    RAM is around 1.5$ to 2$ per GB, for example  $160 for 128 GB (2133 DDR4 ECC)  Applicable to amd epyc series 8 * 16gb 2rx4 pc4-2133p ECC ddr4-ECC REG | eBay   or  $215 for 128 GB 2666 Mhz :  Applicable to amd epyc series 8 * 16gb 2rx4 pc4-2666 ECC ddr4-ECC REG | eBay       or     460$ for 256 GB 2666 Mhz :  Applicable to amd epyc series 8 * 32gb 2rx4 pc4-2666 ECC ddr4-ECC REG | eBay
     
    You could start with at least 2 or 4 sticks per CPU (depends on generation, some really need at least 4 sticks).
     
    For CPU you'll want to be careful to see what generation the cpu is from, as some motherboards will support only 7001 and 7002, others support 7003 as well ... the number of the CPU won't tell you what generation cpu is. 
    The CPUs with P in the name are single socket, "performance" versions ... if you go with dual socket board you want a cpu that can work in dual cpu configurations
     
    You can get 64 cores / 128 threads but very low frequency per core, or you can get less cores but higher frequencies... up to you... if you get a dual socket mobo, you could start with a higher performance 32 core / 64 threads cpu and add one later when you have more money, along with ram for it.
     
    For example, the $165  Epyc 7451 is 24 core / 48 threads but runs at 2.3 ghz base / turbo to 3.2 ghz, and can run dual socket  : AMD EPYC 7451 PS7451BDVHCAF 24-Core 48-Thread 2.3GHz Socket SP3 CPU Processor | eBay
     
    The $200 Epyc 7601 is 32 core / 64 threads with 2.2 ghz base / 3.2 ghz turbo, also dual socket :
    AMD EPYC 7601 CPU server processor 32 core 64 thread 2.2ghz | eBay
    AMD epyc 7601 retail version 32 cores 64 threads 2.2g CPU server processor | eBay

    Epyc 7402 is the newer Rome generation and for $350 you get 24 cores / 48 threads, 2.8ghz base, 3.35ghz turbo , dual socket support : AMD EPYC 7402 cpu processor 24 cores 48 threads 2.8GHZ up to 3.35GHZ 180w | eBay
     - but motherboard must support Rome generation processors.
    $700 gets you  48 cores / 96 threads Rome generation  Epyc 7552  2.2 ghz base / 3.2 ghz turbo : AMD EPYC Embedded 7552 CPU processor 2.2GHz 48 core 96 threads 200w | eBay

    Coolers are around 60-100$  ... you'll need a good power supply with 2 EPS (cpu 8 pin connectors) at the very least, you get that in 850w and higher power supplies but if you plan to go dual socket best to go for 1000-1200w .. that's around 300 dollars...
  15. Informative
    mariushm got a reaction from Nayr438 in Need a new printer, don't know anything about printers.   
    Go laser... I would suggest going  Brother, don't buy the cheapest because those will tend to have non refillable toner or toners that come with chips that count the number of sheets printed. Though most of the newest models will have reset chips. My printer still was the design that has plastic gears and a spring and to refill the toner, I just have to move the gears into the original position.
     
    The cheaper ones will also have a weaker drum unit, that are only warrantied up to 10-20k pages (when they go bad, you start having thin lines on your paper, gray crap on the edges of the paper stuff like that and you have to replace the drum)
     
    For example, a bit higher end you have Brother HL-L5210DWT at $380 : https://www.amazon.com/Brother-HL-L5210DWT-Business-Monochrome-Networking/dp/B0CKWNT1CC/
     
    The drum unit (DR920) is good for 45k pages, genuine replacement is around $225 , third party replacement is less than 50$
     
    Comes with toner good for 3k pages, TN920, or bigger versions (6k  pages, 11k pages) ... they have chips so not as easy as just pouring toner into them, but you can buy third party toner with the chips and up to 11k pages worth of toner for around $55 :  https://ybtoner.com/brother-tn920-toner-cartridge/
     
    Genuine stuff is $80 for the 3k, ~$100 for the XL (6k pages), $170 for the xxl (11k)
     
     
     
  16. Like
    mariushm got a reaction from battlepants220 in Most Hours Played Thread?   
    I was basically addicted to left 4 dead 2 ... played 8-12 hours a day for a period... decided it wasn't healthy and gave it up one day
     
    I played fallout games and other games more outside steam, only bought them after I got my first job and could afford to buy them legally.
     

  17. Agree
    mariushm got a reaction from Alex Atkin UK in I have a 400 watt psu, but no pcie 6pin cables   
    Molex connectors are rated for 5A each, so in theory the adapter cable is good for 10A x 12v = 120 watts
     
    The video card will take around 50-60w from the pci-e slot, and the rest from the external connectors.  The asian market RX 580 is practically a RX 570, so it will actually peak at around 175w or so but will probably average at around 150 watts in games. That would mean on average there should be less than 120 watts taken from the external power, so the adapter cable should work.
     
    No, it's not a case of damaging the video card. It's a case of low possibility of molex connectors melting, or the insulation on the wires of the adapter melting, if the video card "pulls" too much power through the adapter. 
     
    You'll want to periodically inspect the adapter cable and make sure the connections are sturdy, that there's nothing smelling like burned plastic near the adapter cable.
     
  18. Agree
    mariushm got a reaction from OddOod in I have a 400 watt psu, but no pcie 6pin cables   
    Power supplies  produce 3 voltages : 3.3v , 5v and 12v  and on some power supplies a part of the total power is reserved for 3.3v and 5.0v so even though the power supply is advertised as 400 watts, it may not be able to supply 400 watts on 12v, which is what's used in modern computers to power the processor and the video cards.
     
    On amazon there's a picture showing the table with the voltages and power available on each voltage, and that table says 12v 32A, which means  12 x 32 = 384 watts available on 12v.
     
    The thing is, that's true if that's 100% genuine and they're not exaggerating or inflating the numbers.  and the internals are like in the picture on the box on Amazon, I would say at least 300 watts on 12v would be realistic on that power supply.
     
    What can you do now.. well, not much, maybe try a 2 x molex (old hard drive connector)  to a pci-e 6+2 / 8 pin adapter.  They should be better than the 2xsata - pci-e 8 pin adapters
     
     
  19. Like
    mariushm got a reaction from Zando_ in Most Hours Played Thread?   
    I was basically addicted to left 4 dead 2 ... played 8-12 hours a day for a period... decided it wasn't healthy and gave it up one day
     
    I played fallout games and other games more outside steam, only bought them after I got my first job and could afford to buy them legally.
     

  20. Agree
    mariushm got a reaction from Heats with Nvidia in De-soldering caps on a GPU help   
    Liquid or gel flux on the component pads, optionally heat the board from the other side with a hot air gun or even a hair dryer, add solder to the pads ... your iron should probably be at around 380-400c ... 450c is rarely needed.  If you have a conical tip, change the tip to something with more contact area.
     
    If you still have a hard time, get a low melt solder for example https://www.digikey.com/en/products/detail/chip-quik-inc/SMD3SWLT-047-1OZ/13625136 (this one has no flux inside, so extra flux would be required)  or https://www.digikey.com/en/products/detail/chip-quik-inc/SMDSWLT-040-10G/9836741 ( with flux )  or  paste in syringe like https://www.digikey.com/en/products/detail/chip-quik-inc/TS391LT/7802220
     
     
  21. Agree
    mariushm got a reaction from Robchil in What are these?   
    Install the chipset drivers ... once the chipset drivers are installed, the OS will be able to query devices better and detect those or tell you what drivers you need.
     
  22. Agree
    mariushm got a reaction from whispous in What are these?   
    Install the chipset drivers ... once the chipset drivers are installed, the OS will be able to query devices better and detect those or tell you what drivers you need.
     
  23. Agree
    mariushm got a reaction from Lurick in What are these?   
    Install the chipset drivers ... once the chipset drivers are installed, the OS will be able to query devices better and detect those or tell you what drivers you need.
     
  24. Agree
    mariushm got a reaction from Needfuldoer in Help with network crimping tool and tips   
    There's only 2 ways to arrange the wires. see https://incentre.net/ethernet-cable-color-coding-diagram/ 
     

     
    Either version works, as long as both ends have the same order. You'll want to look on the other end of the cable to see what order of wires the installer chose (and if it's not one of these two, cut the plug or keystone and install new)
     
    If I'm no mistaken B version is more popular, because due to the ways the pairs are twisted inside the cable it's easier for machines to untwist the wires and automatically install plugs. So that's what's used in most premade patch cables.
     
    On a keystone that requires a punch down tool or manual insertion of wires there will be a sticker or something printed on it to tell you the order of wires for example
     

     
    As you can see the stickers list both A and B wire orders.
     
     
  25. Agree
    mariushm got a reaction from RevGAM in Where is piezoelectric cooling?   
    Probably because the piezoelectric stuff you saw on LTT and other places can only handle a few watts ... not 20-35w TDP processors, or more. It's also expensive and potentially sensitive to mechanic shocks and has other negatives.
     
    There's also other cooling solutions, like that new frore airjet or whatever is called, which also cools without moving parts.
     
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