Please remember that any mention of competitors, hinting at competitors or offering to provide details of competitors will result in an account suspension. The full rules can be found under the 'Terms and Rules' link in the bottom right corner of your screen. Just don't mention competitors in any way, shape or form and you'll be OK.
Hi!
The Radeon 4870 X2 video card has a special version of internal CrossFireX technology. Essentially, the second core in the video card activates by itself as needed (i.e. during high-end gaming or video graphics design, etc.) and there are no user adjustments that can be done to activate or deactivate it.
You need to have Catalyst AI in the CCC enabled and set to Advanced for Crossfire but presumably the drivers should have done this automatically.
No you dont. You just need Catalyst Ai on/set to standard. As I remember setting it to advanced forces AFR instead.
I cant remember if the 4870 should have a crossfire tab, I dont believe so from memory, as it was dealt with internally by the card and just shows for quadfire.
Personally, I doubt he is trying to con you - he's probably just bought the wrong card for him & his system & now a faulty-claim appears to be the way to get a refund. God-forbid he is trying to use it for grid computing as 4870x2's are a nightmare! Has he actually taken his Toxic 5870 out or is he trying to use that as well?
If it isn't faulty, don't refund your original postage costs to him, do use eBay returns and do a partial refund through Paypal - that way you'll at least not pay fees on the sale or have to cover the cost of posting a good card out to a dodgy buyer.
Add the caveat in your next advert that buyer needs to ensure their system meets requirements as stated on the Sapphire website & that refunds are only for a card returned within 5 days and found to be faulty.
As you might suspect, I've been burnt before with a 280GTX.....