The other day I was approached by my friend to help him with upgrading his computer yet again. In the past I had helped him set up a second monitor, upgrade his video card, and look at another computer he had been working on. This time he was planning to go all-out with dual graphics cards, because if you do have the ability to run two, why would you not run two?
The last time I upgraded his graphics card, we went from two Radeon 4800’s that came with his machine, and switched him to one 6950. The new card was better than the other two, and he wasn’t’ really running anything too powerful to warrant a second card, but it was his money and his machine. I advised him if he wanted to run the two powerful cards, he would probably need a new power supply too in order to be safe, so we looked into his options.
For the power supply, we decided on a Rosewill 750W gold rated power supply, that was designed to run SLI/Crossfire setups, and had good reviews. It was also on sale, so we saved some money on it. The biggest problem was picking out the graphics card. We had ordered an HIS 6950 from Newegg, which had since been discontinued. We found a similar sized XFX 6950 on Newegg, which would work. While I could probably have done some sleuth work to find another HIS model sold through a different site, I decided buying a model currently being manufactured would allow for better customer support if any returns or replacements would need to be handled. The parts were ordered and arrived a week later.
The parts arrived without issue and I stopped over to install the components. The old 650W power supply uninstalled easily enough, and the new one fit in without much issue. I did have to double-check the connections were snug, as the new connections were more loose than I would have thought. I also had to route a wire behind the side panel of the case behind the motherboard to connect to where the manufacturer had placed the hard drive. The graphics card slid right into the open slot. So the biggest concerns with the upgrades were not in installing the components, but rather came afterwards once everything was in place.
Once I had first hooked everything up and plugged in the computer, the first thing I did was watch and listen for anything abnormal, which thankfully didn’t happen. The fans came on and slowed down to normal speed, the lights flashed normally, the hard drive was ticking away as it should be, and the computer beeped once signaling everything was OK. I tested the CD drives to make sure the power connection was good and they could open and close, which they did. I was pretty confident that everything would be OK.
Murphy has a law for situations like this, which states “If everything seems to be going well, you have obviously overlooked something.” This turned out to be true, as I noticed the monitors were not coming on. However, I did hear the sound of Windows starting, so I knew it wasn't as bad as it could have been. I tried switching the monitor cables in the back, and I discovered that the new card had actually taken over the video output, and not the original card. I did not expect the old card would no longer display video by default, but I decided to roll with it.
I went into the control panel and saw that with the Crossfire cable connected, it was detecting that the two cards were installed, and I did see Crossfire was enabled in the ATI graphics control panel. Everything looked to be good. But then I heard a noise, like something was ticking that should be ticking, and then as I checked out the video cards, I felt one was overheating pretty badly for what we were doing with just being at Windows.
I was going to shut down Windows normally, but because of the noise and the heat, I had decided it would be best to turn the computer off as quickly as I could to reduce the risk of damaging any parts. I held in the power switch and let the computer turn completely off, and turned my attention to the card and the source of the noise. It took me a while to get the card out (it was burning me fingers) but when I did I saw that what was happening was the fans on the bottom of the card were actually hitting the wires on the bottom of the case, causing them to not spin, which would explain the noise and the heat. This wasn’t good to discover, but I stepped back and looked at the situation.
I checked the other card, and saw that the fan on this one was actually recessed into the card, rather than flush with the cover as the second card had been designed for. If this first card was on the bottom, it would probably not hit the wires as the second card had. So, it was either try switching the cards around, or break the bad news that the card may need to be returned. But, we were in it this far, and I was going to see if we could finish the job. If the motherboard was designed for dual cards, and the case was designed for gaming, well then there is no reason they shouldn’t be expected to work.
I swapped the cards and tested again, it seemed that this resolved the issue. I kept the case open and left the computer on for a while, all while still monitoring the heat of the cards. The card that was overheating was now running nice and cool to the touch, and the bottom card wasn’t hitting the wires or making any noise, so this was good. The only step left was to test the computer with my friend’s latest and greatest game: Battlefield 3.
Now, the mixed results of the upgrade are that the card he originally had installed was already enough to run Battlefield 3 at high settings, so there wasn’t much of a difference we could see with the two cards. His initial reason for installing the second card was to be able to run everything at ultra-settings without having to worry about any lag or performance issues. We did set it to ultra, and the cards could handle it, but the frame rate was pretty low. I tried to explain to him the difference between high and ultra-settings would not be too noticeable, and would still put a lot of stress on his machine even with the two cards because of how much more information and resources are needed to run this. I was sort of hoping ultra-settings would handle flawlessly also, so I can understand his disappointment, but also understand why it would be an issue.
We were able to run the game with high-settings without any lag and in my opinion the cards ran smoothly on the game. If nothing else we did get better FPS, and the cards had less stress on each than it would have with just the one card. I did also decide to install a fan on the side of the case to blow cool air directly on the cards to alleviate some heat, as with the additional hardware this would be an issue. Once everything was set up, it seemed to be working as OK as can be expected.
Over the next few days there weren’t any reported issues from his end. I am going to call the project a success, however I still do wish ultra-settings would have been an achievable goal for him. I know there are still things we can try with his machine as far as upgrading the processor, maxing out the RAM, changing the case, going from Vista to Windows 7, etc. But that would essentially require a new build, and cost quite a bit. With what he has though, there shouldn’t be an issue with his machine for quite some time. It would be awesome to have him green-flag building a new computer with his existing hardware and new technology, but we’ll see.