Sapphire PC-AM3RS790G

[$eamonk3y]

Thanks. Will do.

When installing the cpu and heatsink/fan - the processor went in no problem but it took quite a lot of force to get the heatsink/fan in. Is this normal? It just felt that quite a lot of pressure was being exerted down onto the processor...

*EDIT* It's a clip type one.

$eamonk3y

[Jasp]

Mixed bag i think seamonkey, first clip type AMD one i installed was a 940 heatsink and was a easy as pie, next one was my sisters 955 and i felt like i was going to snap the board in two trying to get the damm thing on.. works fine though and iv'e heard other people have the same problem so wouldn't worry.

[$eamonk3y]

Ok - I installed a 955 so I won't worry about it then!

Cheers,

$eamonk3y

[Jasp]

I think they changed the heatsink design ever so slightly a few months ago which might explain it.

How you getting on with the build anywho?

[$eamonk3y]

Oh right - all the videos I watched on how to do it were Intel so the AMD one took me a little by surprise!

I'm still waiting for memory and PSU to come (monday) so I've done as much as I can without them... It's the wiring I'm not looking forward to!

$eamonk3y

[Jasp]

Tbh the wiring is nout, most of the wires will only go in one way so are quite hard to get in the wrong way round lol. Just take ya time when wiring up the front panel header to the board and you should be fine.

[purloiner]

Hiya everyone

I have this board and 2 x Sapphire HD4870x2 in a Quadfire configuration.

However, try as I might, Widows Vista won't recognize the second card.

According to ATI there must be four instance of 'ATI Radeon HD 4870X2' in the Device Manager, but I only ever see two. Also, the Crossfire menu doesn't appear in CCC.

Is there a BIOS setting that needs to be enabled?

Has anyone succesfully cnfigured a Crossfire configuration on this board?

[watercooled]

TBH that's not the board I would have chosen for quad crossfire but it should work all the same, although AFAIK each PCI-E 16x slot runs at 8x. Have you tried one card at a time to see if one is faulty?
BTW you are more likely to get help if you start a new thread in the technical section

[purloiner]

Well, I finally contacted Sapphire tech support and they told me that this board in fact doesn't support CrossfireX and that I should RMA it.

Even though Sapphire's website states that it's PURE CrossfireX it's apparently due to a hardware limitation of the board...

The board will support two single cpu graphics cards in Crossfire, but not two dual cpu graphics cards in CrossfireX.

I went out and purchased a Gigabyte GA-MA790FXT-UD5P and am much happier now.