HD2900XT with only 1 6-pin power connected

[Korgan]

I bought a HD2900XT and had only 1 6-pin power on my PSU. I tested and the computer booted up just fine with only 1 6-pin connected to the card. You have to connect the 6-pin power to the 8-pin connector. 3D works but it seems that the card is operating at 2D clocks 506/512Mhz. The good thing with this is that the card is almost noiseless. The fan spins up 1 time every 10mins when using heavy 3D apps. The fan spins for approx. 10-15 secs and then back to low again.

Tests below is with a C2D E6600@3,6Ghz.

First with 2 6-pins connected and card clocked @ 850/900Mhz

3DMark01 63239
3DMark03 42235
3DMark05 21328
3DMark06 12368

Now with only 1 6-pin connected

3DMark01 34064
3DMark03 15565
3DMark05 17298
3DMark06 8397

I find these result very odd! It performs very poor in 3DMark01 an 03 but performs awsome in 05 and 06?

Anyone tried or have a good idea about this? This is good thing if you want to game and your girlfriend wants to sleep. The computer is completly silent and FPS are still good.

[Kasparz]

wowzers, you are buying HD2900XT to make your gf a better sleep?

[kiwi]

63K and 42K is not poor Or you meant poor with 1 connector?

[Kasparz]

He meant 01 and 03 performance is very low with 1 connector while 05 and 06 is pretty close to performance given with both connectors plugged in.

[CometMan]

i wonder if the 8800 series works whit only 1 connector

[Cornelious0_0]

Very interesting to see it clock/perform that well with two 6pin connectors as opposed to the 6+8.

[LowRun]

Very interesting to see it clock/perform that well with two 6pin connectors as opposed to the 6+8.

Sampsa or Kinc (can't remember) told us so ages ago.