500 watt not enough for 5770?

Here is my problem: My Sapphire HD5770 came in the mail the other day, so I threw it into my PC. I turn my computer on, and nothing shows up on my monitor. I fiddle around with my card to make sure it's fully in the motherboard and it is. I try it again and I get the same result. I leave the card in and I switch to my onboard video, I get the same result. I then take out the video card and the onboard video works fine. I went into the BIOS and changed the video configuration to PCIE graphics and the same thing happens, nothing shows up on the monitor.


I'm thinking it's my power supply. Here is the PSU I'm currently using.. http://www.rosewill.com/products/372/productDetail.htm .. Right now, I have a Gateway motherboard with a P4 3.0gHz CPU and 2 gigs of DDR ram. Next week, though, I'm purchasing this motherboard/CPU combo: http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=5635117&CatId=4721 .. I already have the 4 gigs of DDR3 memory. Any suggestions from you guys with the same i3/5770 combo? I'd like to get some advice on which power supply I should buy along with the i3 next week...

Thanks for your help.
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More about watt 5770
  1. 500W should be plenty for that system, did you hook the 6pin PCI-E power connector from your power supply to the video card?
  2. Did you install the HD 5770 driver software?
    I agree with loneninja - that PSU should have enough power even if it is a Rosewill.
  3. Yes, I hooked up the 6 pin connector. I didn't install the software, because according to the installation manual, you're supposed to install the card, THEN the drivers. I don't know though, I will have to try that.
  4. It's possible the 5770 is DOA, but it's not that likely. I had a 4670 die the first week I had installed it, it gave no signal to the monitor but it's fan powered on. I had 3 different computers to try it in, so I was able to prove the card was dead.
  5. Quote:
    Here is my problem: My Sapphire HD5770 came in the mail the other day, so I threw it into my PC. I turn my computer on, and nothing shows up on my monitor. I fiddle around with my card to make sure it's fully in the motherboard and it is. I try it again and I get the same result. I leave the card in and I switch to my onboard video, I get the same result. I then take out the video card and the onboard video works fine. I went into the BIOS and changed the video configuration to PCIE graphics and the same thing happens, nothing shows up on the monitor.


    I'm thinking it's my power supply. Here is the PSU I'm currently using.. http://www.rosewill.com/products/372/productDetail.htm .. Right now, I have a Gateway motherboard with a P4 3.0gHz CPU and 2 gigs of DDR ram. Next week, though, I'm purchasing this motherboard/CPU combo: http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=5635117&CatId=4721 .. I already have the 4 gigs of DDR3 memory. Any suggestions from you guys with the same i3/5770 combo? I'd like to get some advice on which power supply I should buy along with the i3 next week...

    Thanks for your help.


    im guessing your motherboard is a PCI-E 1.0 x16 mobo and the card is an ATI 5770 ver 2.1? if that is the case, everything is actually working fine including the PSU.
  6. I'm not sure what the problem is... I think I might just have to wait until I get the new motherboard, because that could also somewhat be the problem. I can't get to anything in my BIOS that will let me disable the onboard video. I've installed a GTS 250 and a 3870 before, and they automatically were picked up by my computer..
  7. your GTS 250 and ATI 3870 where 2.0 cards that where backwards compatible with 1.0 slots. ATI 5770 2.1 need a BIOS update to be backwards compatible with 1.0 slots and mass PC sellers like Acer, Dell, HP, don't really offer the update.
  8. That's good to hear, then. I'm on a Gateway 500GR. No idea how old it is. Next week though, I'm buying a new Gigabyte motherboard. I should be good then, right?
  9. gateway is owned by acer, they also own emachines.

    you will be fine on the Gigabyte board, assuming the hardware is all good.
  10. It's not 2.1, it says its a 2.0
  11. Quote:
    It's not 2.1, it says its a 2.0


    that would be a different issue then. any chance you can try it on someone else computer?
  12. No I don't think so...
  13. if the card can still be returned when your new CPU and mobo arrive, test it out then.

    if the CPU and mobo arrive after the close of your return window. i suggest you RMA the card as a DOA to protect yourself from a worse case scenario.
  14. I'm going to try that. I have 25 more days to return the item. Hopefully it's something to do with my motherboard and what not. When the card is turned on though, the fan is spinning and a light comes on on the back of the card. So I don't know, I've never had this happen to me before.
  15. I've done some research and I'm thinking its the combination of the motherboard and the card. The 5770 has backwards compatibility issues with 1.0 PCI-E. For some it will work, for some it will not. Once I get the new motherboard, all my problems should be solved. To anyone thinking about getting the 5770 and have an older board, think about getting a new board to save you some frustration ;)
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