well, when i'm booting my pc, the card are rebooting her self few times (the fan are 50-70% for few secs and 3 leds on) its happend few times and then the PC and still no singel on the monitor. after restart its doing the same, but then the pc starts to work.
one more problem its really bad fps with Crysis and really bad score via 3dmark.
the fps on crysis is 10-13, with full oc its 13-15 ov Vhigh, no AA at 1680X1050.
the max score i got on 3dmark is 11800+\-.....
really need help here guys... its my 3 4870... (first 2 by sapphire, and now gigabyte)...
what driver version you use?
I have fps problem on my new 4870 on crysis dx10. Try run "crysis.exe -dx9" this will run in dx9 mode on vista, wich works fine for me. BUT the problem with 3Dmark and some other games persists (((
Well first off if its your third 4870 card by different manufactures I think you can safely remove the graphics card as being the problem. As for the Gigabyte card its an excellent card, running two of them here in crossfire and haven't had a single problem with the cards playing Crysis or Crysis Warhead. Which driver are you using? Hopefully your not using the driver supplied with the card. I'm using CAT8.9 here.
When you boot the computer the graphics fan speed starts at full then throttles back, this is normal for ATi cards. So don't worry about that.
Have you downloaded GPUZ to confirm your card is operating in X16 mode?
If GPUZ confirms the motherboard and graphics card are working in X16 mode then I would look at memory configurations and settings.
As far as 3dmark06 I haven't run it in years, not since my first crossfire setup using X1900 cards and discovering 3dmark06 would disable crossfire. I look at pure game performance instead of what 3dmark06 says its doing.
As for running Crysis in directX9 mode if your using vista, in games right click on Crysis and it will bring up a list and you will see PlayDX9, just click there to start the game.
Absolutely no! I have 35+ fps on 1680x1050 maxed out on COD4 with my old 3870 HD4870 supposed to be twice as fast at least.
something's wrong with RV770s I already regret spending ~£200 on my HD4870. I realy didn't noticed any performance increase compared to 3870 so sad.
P.S. I've searched the net and found that many people have performance isues with 4870s, some people don't. Unfortunatelly we are from the guys that did
well guys, i really dont know now..
i did Crazy oc to the card 790/1100. its gave me only 2 more fps 12-15 at vhigh and high...
and its gave me only 12053 at 3dmark.
when my old sapphire gave me then 12323 without any oc...
what it can be? problem with the card? with the settings?
i just checked my old test, at 3dmark i'm loseing at Canion flight....
with the sapphire i had 70.016 FPS
and now i get only 55.182 FPS + lil' jump for a sec to black screen in the middle of the test..
this is realy strange. black screen in the middle of the test is not good at all, plus strange behaviour of the cardt when you switch on your PC = possible hardware failure
I don't have any side effects from my PowerColorHD4870, only poor performance; 3dmark06 ~10000, crysis 1680x1050 enthusiast settings ~ 15-20 fps.
i tried the same system with 8800, crysis works better 15-20FPS all Vhigh drx10, Cod4 runs at 65+, when my VGA runs it only 20-40, some places 11-15....
Something not right. The VGA is ok. Might be something on the PCI express slot. I think your mobo maybe dying.
I play COD 4 2xAA at 1650x1080 smooth with a 4850. With a fantastic Athlon X2 4800+ and a Asus M2V, witch is not PCIE 2.0.
IF you already swapped PSUs and GPUs, and performance didn't changed a bit, i point to the mobo.
Or have you tried a clean install ? Try to update chipset drivers also.