Can I try them before I buy them?

I don't know why these guys don't provide solid proof about the product they want to sell if they are serious, or why they refuse to be transparent. if I were them and I was serious, I'd allow in person payment and pickup, and show a video of who I am and our place of business along with the equipment I intend to sell...

I don't know why this thread keeps getting bumped.

FYI, I did not use ivy bridge CPU. I used Sandy Bridge, and 6 video cards worked in them. Up to 8 radeon 5870/5970 GPU cores with Windows 7 + driver 11.12, and up to 6 radeon 7970 cores with Windows 8 + driver 12.6 for 7970.

The requirement for ivy bridge is a myth. I don't know where it surfaced, but it's a lie and unbased. Just because Ivy Bridge has PCI-E 3.0 lanes and Sandy Bridge has PCI-E 2.1 lanes doesn't mean anything. The CPU and graphics cards will negotiate to the highest common spec.

It's way too often that people think that a high ASIC % means "high quality". This is actually the opposite though. It denotes the leakage of the ASIC (GPU core) and ties in with TBP (total board power) or TDP (thermal design power). Graphics cards are designed to run with a specific power consumption and thermal output in mind. Higher ASIC % = higher leakage = higher power consumption = lower default voltage to keep temperatures/power consumption down within safe limits. Lower ASIC % = lower leakage = lower power consumption = higher default voltage, because the manufacturers want a consistent power consumption and thermal output.

If you run an 85% ASIC video card at the same voltage as the default voltage of a 65% ASIC video card of the same make and model, and run it in furmark with unlocked/maxxed out powertune, you will find that the 85% ASIC video card will likely have temperatures spiral out of control, and likely even turn off the system (This actually happened to me when I parted out my radeon 7970 mining rigs and tested them individually). Also, because of the increased power consumption, you will stress out the VRMs much more, especially in overclocking, possibly resulting in exploding VRM chips.

Typically, you will want the lowest ASIC % cards you can find. They will have a much larger headroom as far as power consumption (and by proxy, overclocking) goes, and will typically use less power and have lower temperatures compared to a high ASIC % card. As far as stable max overclock speeds, this is still a hit/miss situation.

Good thing I sold my BFL 50GH on ebay for $2000 each a month ago.

tl;dr. Needs grammar and line breaks for your post to be readable. Also it's spelled "Radeon", not "Raedon".

you were screwed by BFL. Enjoy your expensive paperweight. You will NEVER sell that for retail price. Not in a million years. Cut your losses and sell it to the highest legit bidder.

How much is it without the massive heavy heatsink? I can buy intel aluminum heatsinks that look the same here in USA, would probably cost less than what it costs to ship overseas

pretty much what I see. looks scammy.

International first class and small flat rate priority shipping often does not have tracking once it leaves the USA. It will not have a scan showing it left the USA either. The only guarantee for tracking internationally is USPS Express International, or EMS.

Also, there is a small list of countries that supposedly have tracking available for first class int'l and small FR priority packages. Not sure what they are though. I'm sure googling it will turn up a result. It should be understood before conducting a trade if the shipping service is at the buyers risk, or if the seller will offer compensation, though in that scenario, the seller won't know if the buyer is lying or not. Thats why I highly recommended Express shipping internationally since it protects both me and the buyer, and priority or first class is entirely at the buyers risk.

I'll just leave this here.


So in short...

SCAMMER

I highly recommend anyone looking to do a trade with this individual to do escrow only. This guy is fresh registered, and looking to sell the mining hardware that everyone and their grandma wants. There have been a flurry of suspicious people registering on the forums and immediately looking to sell expensive mining hardware that they may not actually have.

You're looking for a free upgrade from 280x to 290? O_o

Any pictures with your forum name and current date?

Escrow?

Are you a scammer?

yes. they will work in any size pci-e slot.

The fact that it uses USB cords has nothing to do with your actual USB ports, or USB capabilities. USB 3.0 is a conveniently flexible and thin cord that just so happens to be able to carry all the necessary PCI-E signals to get a PCI-E device to operate, with the exception of power which is supplied separately.

So to answer your original question, yes, but it has nothing to do with USB ports on motherboards. If you plug this in to a USB port on your motherboard, you will likely fry both your video card and your motherboard.

What makes you think an R9 290x can't do 4k?

I'm not mad at you in particular. I just take suspicious behavior seriously. It's common scammer tactics to...

1. Create a fresh account with little activity
2. Create at least 1 WTS thread for expensive, highly sought after items. Bonus points if you want to sell more than 1 item of different types or create additional threads for different items.
3. Have no pictures, or post pictures easily achieved from google searching.
4. Make excuses on why you don't already have pictures.
5. Refuse escrow, or offering escrow in thread then going silent in PMs when escrow is mentioned in an attempt to get someone to trade without escrow.
6. Mark threads as closed/SOLD when suspicious behavior is noted in the thread and no buyers claim to have bought your items in the thread.

And you exhibit many, if not all of those points.

I've earned the +Trust next to my name by participating in the website over a long period, I always post lots of highly detailed pictures in my WTS threads (See https://bitcointalk.org/index.php?topic=219185.0;all and https://bitcointalk.org/index.php?topic=370907.0;all as examples), I've offered escrow in my GPU sale thread, but the trust next to my name now enables people to feel comfortable sending BTC to me first, and I never fully delete/remove my threads, because I want to preserve the information within, showing how I attained my trust.

I'm probably just wasting my keystrokes at this point since, if I'm correct, you'll just be making a new bitcointalk forum account anyways at another attempt to swindle someone of their hard earned coins/cash, but if you really are legitimate, you will take a lesson from a person who is actually trusted on these forums.

It is so unfortunate when people don't speak up when they buy something. Theres no way to verify if a trade actually occured then, which would reinforce if the seller was legit or if they were a scammer.

The 7990 original retail price was $1000. Then it came down to $700 due to lack of interest. Now it is discontinued and being replaced with the R9 series. Just because it is discontinued/rare does not mean it is super ultra valuable. With the influx of scamcoin miners, I can see $800 being a fair trade (but a terrible deal for those that want to game on it .. but there's no gamers on these forums so eh.)