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Cables -.-

is their a way to check if my psu is giving power to my gpu

cause i used an extender cable and im not sure if that cable works


Two 6 pin connectors go in my gpu if one is not working my gpu will fry any suggestions ?

is there a way to check it ?
12 answers Last reply Best Answer
More about cables
  1. with a multimeter...
    http://www.playtool.com/pages/psuconnectors/connectors.html#pciexpress

    ----

    and your gpu will not fry if one connection isn't supplying power... your gpu will be struggling to operate and anything can be a result of that
  2. and dingo can u tell me waht can happen cause someone on forum told me my gpu 7870 needs 38 amps psu and mine is 24 amps

    can that affect my gpu too ?
    can i fix it ?


    gpu - SAPPHIRE HD 7870 GHz Edition 2GB GDDR5
    psu - cooler master Thunder 500W
  3. The hd 7870 demands 175W at max. That relates to 14.6 A on the +12V rail (175W/12V; Ohm's Law)... not 38A.
    http://www.hwcompare.com/12186/radeon-hd-7870/
  4. so is my psu ok ?
  5. clutchc said:
    The hd 7870 demands 175W at max. That relates to 14.6 A on the +12V rail (175W/12V; Ohm's Law)... not 38A.
    http://www.hwcompare.com/12186/radeon-hd-7870/

    Thank YOU. +1

    Anonymous said:
    so is my psu ok ?

    If it can deliver its rated 408(Thats 34 amps combined BTW) watts of rated 12 volt power, then YES.
  6. nukemaster said:
    Thank YOU. +1


    If it can deliver its rated 408(Thats 34 amps combined BTW) watts of rated 12 volt power, then YES.



    can u tell me if my psu is ok or not i dont get it i am a noob at this :(

    please look at my psu and tell me if it is fine ?


    http://www.flipkart.com/cooler-master-thunder-500w-500-watts-psu/p/itmdbm7fefnpygyn?pid=PSUDBM7EDH7YSFTZ&ref=897f1540-9677-496f-92f0-d6fb2319e12a&srno=t_1&otracker=from-search&query=cooler%20master%20Thunder%20500W
  7. The biggest problem is that CoolerMaster has bad some history of power supply quality issues. I know what unit it is. And it is rated high enough for your card.
  8. nukemaster said:
    The biggest problem is that CoolerMaster has bad some history of power supply quality issues. I know what unit it is. And it is rated high enough for your card.

    i don't care about quality i will change it once i have money
    and
    please can u check it again are u sure thats not what everybody says to me
    every body says my psu is not compatible to my gpu -.-???
  9. Quality is the NUMBER 1 thing to look for in a PSU. If a power supply goes too far out of spec under load, it can fail or damage other parts.

    Here are the specs from CoolerMaster.

    http://www.coolermaster.com/product.php?product_id=6849

    As you will see on the chart to 2 rails have a max combined output of 408 watts. So as long as both rails combined never pass (408/12=34) 34 amps and each one stays under its max rating, everything should run fine.

    As a user listed above, The card has a TDP of 175 watts and is almost all cases it will stay below that.

    I do not recommend getting some massively overclocked version of the card because it will take more power.

    The 38 amps that users like to toss around is a recommendation for a FULLY LOADED system not just the card it self. Imagine the heat sink you would need to remove 456 watts of heat.

    What else is in your system. The video card is not the only thing taking power.

    Just as an example, my media center has a gtx 650 ti card. Nvidia recommends 400 watts and realhardtech recommends 430, but because my system is fairly low powered the thing runs fine with a 300 watt power supply(22 amps combined). I know this power supply can deliver what it is rated for.

    Every system will be different.

    You do have to be concerned with ONE thing. The CoolerMaster power supply only has ONE 6/8 pin PCI connector.

    In it self, that should say they expect you to be able to pull 150 watts from that connector it self(8 pin, the 6 pin is "rated" for 75 watts).

    The card has 2 x 6 pin. So you would have to use adapters to go from molex(LP4) -> 6 pin. Most cards come with them.

    If you are worried, dropping to a 7850 would drop you to ONE power connector.
  10. nukemaster said:
    Quality is the NUMBER 1 thing to look for in a PSU. If a power supply goes too far out of spec under load, it can fail or damage other parts.

    Here are the specs from CoolerMaster.

    http://www.coolermaster.com/product.php?product_id=6849

    As you will see on the chart to 2 rails have a max combined output of 408 watts. So as long as both rails combined never pass (408/12=34) 34 amps and each one stays under its max rating, everything should run fine.

    As a user listed above, The card has a TDP of 175 watts and is almost all cases it will stay below that.

    I do not recommend getting some massively overclocked version of the card because it will take more power.

    The 38 amps that users like to toss around is a recommendation for a FULLY LOADED system not just the card it self. Imagine the heat sink you would need to remove 456 watts of heat.

    What else is in your system. The video card is not the only thing taking power.

    Just as an example, my media center has a gtx 650 ti card. Nvidia recommends 400 watts and realhardtech recommends 430, but because my system is fairly low powered the thing runs fine with a 300 watt power supply(22 amps combined). I know this power supply can deliver what it is rated for.

    Every system will be different.

    You do have to be concerned with ONE thing. The CoolerMaster power supply only has ONE 6/8 pin PCI connector.

    In it self, that should say they expect you to be able to pull 150 watts from that connector it self(8 pin, the 6 pin is "rated" for 75 watts).

    The card has 2 x 6 pin. So you would have to use adapters to go from molex(LP4) -> 6 pin. Most cards come with them.

    If you are worried, dropping to a 7850 would drop you to ONE power connector.


    i used a cable like this for the second pcie for gpu
    http://www.moddiy.com/product_images/y/002/molex-6pcie__84382_zoom.jpg
    just tell me yes or no the psu is fine or not ?
    leave the quality and just tell me
  11. Best answer
    yes the PS should be ok...
  12. Best answer selected by acepro71.
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