How about the 'fact' (totally lacking any evidence what so ever) that if one GPU card fails you have to buy two replace it. In other words, a board with no failure what so ever is required to be thrown away.
There goes a 1/3 of your 2/3's.
Apple is selling them in identical pairs. There are far more "we will make more money by selling in volume" reasons for that than any technical one. Just because they aren't selling the config doesn't mean it won't work. When 64GB DIMMs show up the nMP probably won't have a problem with them even though the Apple "tech specs" says there is a 64GB cap. ( Tech Specs weren't technically true on current ones with folks with 128GB installed).
There are a few more, but that is the most blatant fib of the bunch.
I'm sorry that you have such trouble understanding.
I didn't lie, you just aren't getting my point. Perhaps read more slowly?
1. flat5 had a 7300 die, he needed the computer running again.
2. He was faced with 2 choices, replace 7300 with another 7300 or upgrade to a 8800
3. He decided to take advantage of the opportunity and UPGRADED.
4. When 8800GT died, same choice and again he UPGRADED.
5. If he had a nMP and ONE card died in 2 years, he could buy ONE replacement or IF HE WANTED TO UPGRADE HE WOULD HAVE TO BUY TWO(2).
6. This applies to both UPGRADES. To UPGRADE he only had to buy ONE card. With nMP, replacing one each time to keep costs down leaves you at end of 5 years with 7 year old GPUs. The equivalent of trying to get any work done today with a 7300GT. So, in order to upgrade twice LIKE HE DID BEFORE...He would HAVE TO BUY 2(TWO) CARDS EACH TIME.
7. If he didn't choose to upgrade and only replaced the SINGLE DEAD CARD, he would keep computer running for a lower cost, but be hamstrung with ancient GPU tech.
8. Do you understand now? Or do I need to write a 1000 word essay to further clarify?
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not sure exactly.. whatever it is that causes the screen to look similar to this for a while prior to complete blackout or failure to boot.
Image
(not my image)
Common failure mode for both.
BGA solder joints under GPU lose contact due to cracked solder.
Can be reflowed in your oven. Cards with screen artifacts like that have better than 50/50 odds of coming back to life. If you search my past posts for this I give instructions and several people have saved themselves replacing 1 graphics card. (1 instead of 2)