Is port affect the picture quality?

i bought a new sapphire radeon hd 7750 1gb ddr5.it has 1 hdmi,1 dvi and 1 display port. but my computer has only vga and dvi ports.my computer is connected with vga(monitor)to vga(cpu or mother board).if i connect with vga(graphics card)to vga(monitor)by using a convertor, then will my graphics card performance will decrease?or will i get low frame rates or bad signals?
73 answers Last reply
More about port affect picture quality
  1. You are supposed to connect the port from the graphics card to the monitor.
  2. You will loose nothing. The converter is a passive DVI -> VGA.

    I use one with no issues at all.
  3. Also PLEASE tell me you bought a new power supply with that card because I know your computer has a 180W.
  4. Deemo13 said:
    Also PLEASE tell me you bought a new power supply with that card because I know your computer has a 180W.

    no, because the graphics card uses only 55watt. and my cpu has a maximum TDP of 65 watt. so it will work. but if the game crashes or the pc restarts, then i have to buy a 300 watt psu.
  5. Hi there,

    The picture quality of VGA is fine up to resolutions of 1600x1200. It starts to fall off slightly after that and will fall off sharply after 2048x1536.
  6. BSNL said:
    no, because the graphics card uses only 55watt. and my cpu has a maximum TDP of 65 watt. so it will work. but if the game crashes or the pc restarts, then i have to buy a 300 watt psu.


    That's 120 watts from the 12 volt rail between the CPU and GPU alone. That is not including other components which draw from the 12 volt rail. The 180 watts marketed on cheap PSUs is often the combined maximum load, not the individual rail load. You need to get a new PSU NOW because you're risking damaging your components and/or starting a fire.
  7. Pinhedd said:
    Hi there,

    The picture quality of VGA is fine up to resolutions of 1600x1200. It starts to fall off slightly after that and will fall off sharply after 2048x1536.

    yes but my graphics card has a dvi port. so i am using a convertor to convert the dvi to vga and then i will connect with the vga monitor. will it be safe and will not affect my quality?
  8. Pinhedd said:
    That's 120 watts from the 12 volt rail between the CPU and GPU alone. That is not including other components which draw from the 12 volt rail. The 180 watts marketed on cheap PSUs is often the combined maximum load, not the individual rail load. You need to get a new PSU NOW because you're risking damaging your components and/or starting a fire.

    but many people says that HP and COMPAQ gives good SMPS . and mine is a compaq branded set.
  9. BSNL said:
    yes but my graphics card has a dvi port. so i am using a convertor to convert the dvi to vga and then i will connect with the vga monitor. will it be safe and will not affect my quality?


    Oh you said in your original post that the graphics card had a VGA port. DVI comes in a number of forms including DVI-D for digital signals, DVI-A for analog signals, and DVI-I for both. If your GPU has a DVI-I output (it should, DVI-D and DVI-A outputs are extremely rare) then an adapter will simply reposition the necessary wires from the DVI-I output into a VGA output. Electrically it will be identical.

    EDIT: All OEMs, HP and Compaq included, use crummy power supplies. All modern PC power supplies are SMPS regardless of whom the manufacturer is. This has no bearing on the component quality or output capacity. You will need to get a new one, no question about it.
  10. Pinhedd said:
    Oh you said in your original post that the graphics card had a VGA port. DVI comes in a number of forms including DVI-D for digital signals, DVI-A for analog signals, and DVI-I for both. If your GPU has a DVI-I output (it should, DVI-D and DVI-A outputs are extremely rare) then an adapter will simply reposition the necessary wires from the DVI-I output into a VGA output. Electrically it will be identical.

    EDIT: All OEMs, HP and Compaq included, use crummy power supplies. All modern PC power supplies are SMPS regardless of whom the manufacturer is. This has no bearing on the component quality or output capacity. You will need to get a new one, no question about it.

    so how much psu needed for 7750?
  11. With a 7750 drawing no more then 50 watts(if that)I do not think you are that far off.

    What are the exact specs of your power supply anyway?
  12. nukemaster said:
    With a 7750 drawing no more then 50 watts(if that)I do not think you are that far off.

    What are the exact specs of your power supply anyway?

    my in build smps had 180 watt. so probably i would be needing 180+50=250 watt power supply. is my calculation right?
  13. BSNL said:
    so how much psu needed for 7750?


    To be safe you'll want a PSU that delivers at least 200 watts on the 12v rail alone. Look for a good PSU that has between 16 and 18 amperes on the 12 volt rail.

    The 3 or 4 numbers that manufacturers toss on a power supply really don't mean much. What matters most is the power delivery capabilities of the individual rails and the power delivery of the entire system itself. I've seen PSUs marketed at 500+ watts that could only deliver 200 watts on the 12 volt rail, the rest was sheepishly tossed on to the 3.3 and 5 volt rails where it will never be used.

    Some very good 300 watt power supplies should deliver the necessary current on the 12 volt rails. If you can get something like the SeaSonic SS-300ES that will do fine. Otherwise, you should look in the 400 watt range to be safe. It's important to look past the marketed rating and dig into the specifications.

    Good luck
  14. Pinhedd said:
    To be safe you'll want a PSU that delivers at least 200 watts on the 12v rail alone. Look for a good PSU that has between 16 and 18 amperes on the 12 volt rail.

    The 3 or 4 numbers that manufacturers toss on a power supply really don't mean much. What matters most is the power delivery capabilities of the individual rails and the power delivery of the entire system itself. I've seen PSUs marketed at 500+ watts that could only deliver 200 watts on the 12 volt rail, the rest was sheepishly tossed on to the 3.3 and 5 volt rails where it will never be used.

    Some very good 300 watt power supplies should deliver the necessary current on the 12 volt rails. If you can get something like the SeaSonic SS-300ES that will do fine. Otherwise, you should look in the 400 watt range to be safe. It's important to look past the marketed rating and dig into the specifications.

    Good luck

    what about corsair? when i will go to shop then will i have to see that the psu is 250 or not or to see also anything else?like about volts and amps?
  15. 17 amps is just over 200 watts.

    This will be the 12 volt current.

    I run a 5770 on a 300 watt power supply :)
  16. nukemaster said:
    17 amps is just over 200 watts.

    This will be the 12 volt current.

    I run a 5770 on a 300 watt power supply :)

    so what do i have to see when buying a psu?
  17. BSNL said:
    what about corsair? when i will go to shop then will i have to see that the psu is 250 or not or to see also anything else?like about volts and amps?


    Corsair is very good. Most of their PSUs are actually manufactured by SeaSonic
  18. You need to see an 80+ certification, which means the power supply has a high efficiency.

    You are also going to want something with at least 300-400W. A CX430, that I have recommended in your many other posts that you get would be plenty.

    In many of your other posts I have recommended a new power supply and I even told you that the 7750 would not run on 180W.

    Again. It will not run on 180W.
  19. Pinhedd said:
    Corsair is very good. Most of their PSUs are actually manufactured by SeaSonic

    is corsair 250 watt ok? and please please tell me what other things will be required to see other than the wattage.
  20. BSNL said:
    is corsair 250 watt ok? and please please tell me what other things will be required to see other than the wattage.


    250 watts is too low. I'd recommend 300 minimum
  21. Pinhedd said:
    250 watts is too low. I'd recommend 300 minimum

    ok ok then 350 watt corsair psu. and now please please tell me what other things will be required to see other than the wattage.
  22. I'm pretty sure that Corsair doesnt make any 350W PSU's. You are going to want to get the CX430 Corsair.

    You want to look for 12V rail amperage and wattage as well as 80+ certification. Both of which the CX430 has.
  23. BSNL said:
    ok ok then 350 watt corsair psu. and now please please tell me what other things will be required to see other than the wattage.


    The wattage on the 12 volt rail is most important. Other than that, the fact that it's a Corsair product should be enough to ensure the rest is okay.
  24. Deemo13 said:
    I'm pretty sure that Corsair doesnt make any 350W PSU's. You are going to want to get the CX430 Corsair.

    You want to look for 12V rail amperage and wattage as well as 80+ certification. Both of which the CX430 has.

    how much watt age is of CX430?
  25. 430 :)

    28A(28x12=336 watts) on its 12 volt rail.
  26. Deemo13 said:
    430W

    is there anything less than 430 because 430 watt age for 7750 would be useless.
  27. 430W
  28. that is a good fit for you.

    Hey, why not use your ups to see how much power are using now? The software should tell you.

    I have also never seen a 180 watt PSU outside of SFF cases. Can you link us to the computer you have?

    I just want to make it clear that a bigger power supply does not always use more power. It uses what is needed + regular loss. New power supplies have less loss so take less power to run the same system.
  29. Well, when you upgrade again, then you could just use the same power supply again and not have to worry about power.

    You cant have too much power.
  30. Deemo13 said:
    Well, when you upgrade again, then you could just use the same power supply again and not have to worry about power.

    You cant have too much power.

    i am not going to upgrade anything else. after few days will be upgrading my ram to 4gb ddr2.
  31. nukemaster said:
    that is a good fit for you.

    Hey, why not use your ups to see how much power are using now? The software should tell you.

    I have also never seen a 180 watt PSU outside of SFF cases. Can you link us to the computer you have?

    please give me a link of that.
  32. The software is APC Power Chute.

    Should have come with the UPS or be on the website for APC.

    http://www.apc.com/products/family/?id=129

  33. I'm saying in the far future, like in a year or two you might upgrade.
  34. Deemo13 said:
    I'm saying in the far future, like in a year or two you might upgrade.

    please dont be offline, i am downloading that software which nukemaster gave and i am going to see that how much power is my computer using without a graphics card.
  35. Alright we'll see. But I would think nukemaster would agree that a new power supply would AT LEAST be more comforting.
  36. nukemaster said:
    The software is APC Power Chute.

    Should have come with the UPS or be on the website for APC.

    http://www.apc.com/products/family/?id=129

    http://img24.imageshack.us/img24/8408/powerchute.png


    I had no idea that software existed and I've been using APC PSUs for years. Kudos

    lol nearly 250 watts idle, yikes.
  37. nukemaster said:
    The software is APC Power Chute.

    Should have come with the UPS or be on the website for APC.

    http://www.apc.com/products/family/?id=129

    http://img24.imageshack.us/img24/8408/powerchute.png


    And this thing is awesome! I dont think I have an APC though.
  38. Deemo13 said:
    Alright we'll see. But I would think nukemaster would agree that a new power supply would AT LEAST be more comforting.

    while i am installing it told that it was unable to located the battery backup and the whole installation rolled back.why this had happened?
  39. Well do you have a battery backup?
  40. Deemo13 said:
    Well do you have a battery backup?

    yes man back ups RS 550 APC of 300 watts
  41. hmm, maybe then it just doesnt pick it up.
  42. Deemo13 said:
    hmm, maybe then it just doesnt pick it up.

    the error coming is this,

    http://imageshack.us/photo/my-images/832/programmanager201208140.png/
  43. Did you connect the USB or Serial cable from the UPS to the computer? it is needed for the unit to give you stats.

    Its worse that you can not uninstall the software without the unit connected either.
  44. nukemaster said:
    Did you connect the USB or Serial cable from the UPS to the computer? it is needed for the unit to give you stats.

    Its worse that you can not uninstall the software without the unit connected either.

    i don't know anything about that. is there any other software?
  45. That is the software, but you do have to have a USB or Serial cable from the computer to the USB/Serial port on the unit it self.
  46. nukemaster said:
    That is the software, but you do have to have a USB or Serial cable from the computer to the USB/Serial port on the unit it self.

    there is no ups located on my ups.
  47. It looks like a big phone plug or Ethernet plug.

    Top right in this image.
    http://content.hwigroup.net/images/products/xl/099661/2/apc_backups_rs_550va.jpg
  48. nukemaster said:
    It looks like a big phone plug or Ethernet plug.

    Top right in this image.
    http://content.hwigroup.net/images/products/xl/099661/2/apc_backups_rs_550va.jpg

    no man, it is connected with plugs(two plugs of monitor and cpu are connected with the two plug pointers of the ups )
  49. Yes, but those are just power plugs, You need a data cable. Its like of like how a printer needs both Power and Data to print.

    Do you see the plug in the picture on your UPS?
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