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RAM (random access memory) - much faster, temporary stoage, power gone = information lost. Flash memory - slower, permanent stoage, power gone = information still there.

It seems that in your case, just about anything will work fine. Go for it! :)

CPU clock speed is not a very good measure of how fast a CPU is. The clock speed is similar to a car engine's RPM measure. How fast an engine turns is not indicative of how powerful the engine is. Does a Pinto ramming at 5000 RPM run faster than a Ferrari at 3000 RPM? I looked up the...

For trading, even the speed of the graphics processor nor the onboard memory are that relevant. Nor would the new features in PCIe 3.0. You buy bleeding edge technologies, you will be paying for what you don't need. It's the "buying a Ferrari to deliver pizza" thing...

Your motherboard has 2 PCIe 3.0 x16 and 1 PCIe 2.0 x16. You can get a couple of these inexpensive 8400 GS (made by EVGA or PNY Technologies or MSI). The current model has 1 GB RAM. Older ones had 512MB or 256MB RAM. Doesn't matter much for trading. Older = cheaper. 1 card = 2 monitors...

Yes. But that's the disk I/O speed performance increase. Not necessarily your whole throughput. The question is: how much disk I/O does your trading app do when the market is open? For some apps, it may not be a significant portion.

In general it will. It is just not a direct logic. 64-bit will let you use over 4GB of RAM. More memory space means more memory can be allocated for the application. If enough memory is available for your app, the operating system does not need to do any swapping/paging (virtual memory)...

It is fairly easy to isolate the problem. Shut down your computer and take out one NVS 295 card at a time. Restart. See if the problem follows one of the cards. If so, that card is most likely bad. If they both run okay individually, but you have the above problem when they are both...

I agree with Scata. I think it is prudent to look for motherboard that offers more than 1 PCIe X16. Many of the ready-made boxes from Dell, HP, e-machine, etc. that you can pick up from a store... from what I have seen, typically give you 1 PCIe X16 slot. It is too limiting. Many of the...

I like the part where the user uses a pair of chopsticks to control the cursor! LOL indeed!

All for finding the value of Pi.

Without concrete evidence, it is anybody's speculations. Have your Task Manager Ready. When the CPU usage spikes up every 30 minutes as you said, you should be able to ID what process (and thus an image name) that is taking up most of the CPU cycles at that moment. You start from there...

I have never used these devices. Just a look at the specs on both gadgets, my first impression is that they will be very slow. Viewsonic, processor Intel Atom 330, passmark score 632 Foxconn, processor Intel D2700, passmark score 823 I used to use a box that has an older AMD processor...

I agree... high pitch noise is usually from cooling fans. And there are a few of them. A chassis can have 2. One for blowing air in, one for blowing out. Then another one for the CPU heatsink itself. There can be more. Some big video cards have their own fans. Take off the cover...

Well you are assuming that you are keeping your Dell Chassis. :) I am not familiar wth Dell's systems. I suspect that their motherboards do not conform with the industry's standards like ATX, or microATX form factors. Which means you are not likely to find an off-the-shelf motherboard to...

What are the resolutions of your 6 to 8 monitors? Are they 1920x1080, or 2560x1600? If they all are 2560x1600 (my guess is not), then you may be limited in your choices of video cards that can support them. If they all are 1920x1080 or lower, then many cards can support them. You can do...

How much do you want to spend on this upgrade? It seems the NVS 420 card itself is a $400 - $500 item. http://shopping.yahoo.com/711999768-pny-nvidia-quadro-nvs-420-video-card/ Way too expensive for what you may need it for, IMO. What are your requirements? Because it didn't say...

The ultra high resolution of 4096 x 2304 per screen is only meaningful if you have a monitor that supports it. At today's prices, getting such a monitor would cost much more than the 1:6 graphics card itself. Let alone having 6 of them.

I think one should use SSD for startup as well as whatever temporary storage for the trading platform. Depending on how you trade, you may have a large pool of data needed through out your trading session. Or you may back test, and the platform needs temporary files. Files that are more for...

There is a major difference TJ: If you miswired something inside your i7 computer, no big deal. Those are low voltage wires. Maybe something doesn't work. At the extreme case you blow your computer power supply. You have a box dead in the water. But if you miswired some 110V or 220V...