about 4870x2

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Pelu

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Mar 3, 2008
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sup all i notice the radeon 4870x2 need 2 power connectors... one 2x3 and one 2x4... the manual say that i can use one 2x3 in the 2x4 but i need to put them closest to the 2x3 one... the problem is that the 2x3 connector doesnt fit into the 2x4 one, unless I apply some preasure and some sort of flexible pin connector moves into position.. kinda strange...

I was thinking the instruction manual is full of wrong crap lol...

 
daw123

daw123

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Aug 30, 2008
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Originally posted by: Pelu
sup all i notice the radeon 4870x2 need 2 power connectors... one 2x3 and one 2x4... the manual say that i can use one 2x3 in the 2x4 but i need to put them closest to the 2x3 one... the problem is that the 2x3 connector doesnt fit into the 2x4 one, unless I apply some preasure and some sort of flexible pin connector moves into position.. kinda strange...

I was thinking the instruction manual is full of wrong crap lol...
Click to expand...

I would say that that is bullsh*t.

The X2 needs a 2x3 and 2x4 PCI-E power connector and that whats you need to plug in from your PSU. i.e. you shouldn't plug a 2x3 connector into the 2x4 socket, although the 2x4 power connector often has the 7th and 8th pins hinged so that you can use it as a 2x3 connector.

Edit: Lets put it another way. Logically, if the card did not need the 2x4 power socket, then ATI would have designed it with two 2x3 power sockets instead of a 2x3 and 2x4 socket.
 
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Pelu

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daw123

daw123

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You mis-understand.

You can use the 2x4 power connector in the 2x3 socket on the card (in fact Powercolor provided me with a 2x4 to 2x3 adapter). I wouldn't use the 2x3 power connector in the 2x4 socket on the card.

You will find that the connectors are keyed to the sockets, so that you cannot accidentally plug a connector into the wrong socket, or the correct connector plugged into the right socket in the wrong orientation. i.e. the correct connector will only fit the correct socket in the correct way.

This is why you are unable to plug the 2x3 connector into the 2x4 socket. It is deliberately designed so that you can't do this. Using brute force will only knacker the plug and/or socket and even if you manage to plug it into the socket by brute force, the card won't work any way.
 
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Pelu

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oh... so all that crap about explaining how to use 2 2x3 connectors is full manual BS??? wondering why...
 
daw123

daw123

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Aug 30, 2008
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Yep. The manual probably means using a 2x4 power connector with the 2x4 to 2x3 adapter. i.e. You can use the 2x4 connector in the 2x3 socket on the card.

As I said before some 2x4 PCI-E PSU connectors give you the option of using it as 2x3 connector by hinging the 7th and 8th pins. i.e. you can hinge two of the pins away from the connector, so that it plugs into the 2x3 socket.
 
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Pelu

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Mar 3, 2008
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anyway i think this manual is filled with crap... any recomended power supply for this card and so on..

like which one have those 4 connectors and work fine.... and isnt one of those 400 bucks psu lol
 
daw123

daw123

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It's a Antec Truepower Quattro 1000W.

This was my rig (see this this thread)

Since that photo was taken, I changed the case to a Lian li A70A and I've also added a liquid cooling loop for the CPU.

Unfortunately, I killed the QX9770 CPU by accidentaly dropping it on the floor, so rather than replace the QX9770, I'm going to spend the extra £200 and upgrade to a I7 rig:
I7 940
3x 2Gb Corsair Dominator 1600MHzRAM
GA-X58-UD5
 
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Pelu

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no way dude... u drop the processor to the floor.... how did they shred?
 
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Pelu

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is there any way to convert the 2x3 into 2x4... like adding two more cables to the side connectors lol...
 
daw123

daw123

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Aug 30, 2008
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I had everything prepared. All I had to do was clean the heatspreader on the CPU and fit it in the MB.

I was holding the chip by the plastic protective cover to clean the IHS. The chip fell out of its protective cover from about 5 foot onto the kitchen floor. This bent one corner up on the PCB. After 10 minutes of swearing and kicking things, I tried it in the rig and crossed my fingers. It booted up, but unfortunately after a couple of seconds, switched itself off. I then knew, after double checking all the conenctions, that the CPU was dead.

Oh well, at least its an expensive excuse to upgrade to I7.

The only problem is that my car is starting to make funny noises. I'm getting to the point where I'm thinking f*ck it and spend the money I set aside for the I7 rig, on you guessed it.. the I7 rig.
 
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Pelu

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Mar 3, 2008
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wow... I was thinking on shoplift a powersupply lol... i cant believe i am so miserable...
 
daw123

daw123

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Aug 30, 2008
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Originally posted by: Pelu
is there any way to convert the 2x3 into 2x4... like adding two more cables to the side connectors lol...
Click to expand...

For a three pin PC-E connector have a look as this for a DIY job:
http://www.spodesabode.com/arc...tent/article/pciepower

This explains the difference between the 6pin and 8pin PCI-E power connectors:
http://www.playtool.com/pages/...ctors.html#pciexpress8

It seems that the 8 pin connector has additional grounds. I may be wrong then following their desciption; the only difference I can see between the 6 pin and 8 pin is that the 8 pin has an additional 2 pins, which are grounds (black wires). I don't know if these additional grounds are important.

Then again my previous question still remains: why would ATI specify a 2x3 and 2x4 socket if only two 2x3 sockets are required. Logically, it doesn't make sense. Therefore, the two additional grounds may be important. Referring to the first link in this post, you may be able to create a 4 pin connector by butchering an old ATX power supply connector. Don't hold me to it though if it doesn't work.

Edit: I'm sure others can confirm if this is possible and I would recommend input from others to see if this can be done before you try it.
 
daw123

daw123

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Aug 30, 2008
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Another thing; if you have a multi-rail PSU, try and use different rails for each supply to the card to maximise the amount of available power / current to the card. As I said before, this card is power hungry. If you have a single rail PSU, then this doesn't matter.
 
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Pelu

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Mar 3, 2008
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I got one Ultra X3 850watt... with a bunch of connectors... if i am not wrong i put 2x3 in one rail and the 2x4 in other one.. at their side

by the way dadz paid for the psu... no shoplifting happened here... anyway now about the drivers...

what is better right now the 8.12 with the hotfix or the 9.1... i hear a lot of complaining about the new 9.1 not sure if they are true or matter... but some peeps are hitting them...
 
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Pelu

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Mar 3, 2008
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anyway.... about the 2x4... WOW>... 150watt...

let me guess 75 from board.. 75 from cable and 150 from other cable.. that means around 300watt for the card... lol! what a powerplant... maybe i can used the card as a CPC or whatever the name is to revive heartattack people LOL!
 
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