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I guess you've been using your machine for a few days.

That's right. Judging by your motherboard ASUS P5VDC-X.

It is a motherboard on the lower end.

Its main chip is via PT880 Ultra

Integrated sound card network card with separate graphics card slot.

Available Platforms: Intel Platforms: Pentium 4, Celeron, PentiumD, CPU

Supports Intel 65nm Pentium D Pentium 4 Celeron processors compatible with Intel 05B 05A and 04B 04A processors).

The memory type DDR DDRII is supported

The main thing is that it supports DDR2 533 400 RAM as well as DDR 400 333 266 RAM.

First of all, if you want to expand the memory.

You have to first see what type of memory you are using, whether it is DDR2 or DDR, whether it is 533 or 400 or 333

In this way, you can buy one or two of the same model of memory plus the capacity can be 1G As for the brand choice, it can be the same or different as the one you use This aspect generally does not constitute a compatibility problem Now the mainstream is more Kingston or Black King Kong and other brands Be careful not to buy fakes There are a lot of fake memory especially Kingston's.

In addition, now the mainstream is 667 and 800 memory, your motherboard does not support it (it is indeed a bit low), don't buy it, your highest is 533

As for the graphics card : it is an N-card GeForce FX5200 chipset that is also at the lower end for now.

Because your motherboard and CPU and memory are already a relatively obvious bottleneck.

So you may not have to change to a very good graphics card, and it may not have a very obvious effect, but you can change to a higher 6600 series or 7300 series graphics card (n card).

When choosing a graphics card, pay attention to its memory type, memory bit width, number of render tubes, existing capacity, and so on.

The recommended brands are Yinglax and ASUS.

Generally, the core is 7300gs, but it can also be 7300gt.

That's all. Hope it helps.

So many questions! Hehe! Hi me directly, I'll explain it to you one by one.

No, the following is an online pick!

Hard disk transfer rate: As the most important data storage device and data exchange medium in the computer, the speed of hard disk transfer rate directly affects the running speed of the system. Different types of hard drives often have very different transfer rates.

At present, there are three main types of mainstream hard disks: according to different interfaces, they can be divided into parallel ATA hard disks (i.e., IDE hard disks), SCSI hard disks and Serial ATA hard disks.

IDE interface hard drives are the most widely used in today's computers, and the mainstream specifications include ATA 66, ATA 100, and ATA 133, and this naming method also indicates that their theoretical maximum external transfer rates reach 66MB s, 100MB s, and 133MB s respectively. It should be noted here that 100MB s and 133MB s are peak speeds, which does not mean that the hard disk can sustain this speed, that is to say, this is the theoretical maximum peak speed.

The real transfer speed of the hard disk is affected by the internal transfer rate of the hard disk, and its stable transfer rate is generally between 30MB s and 45MB s. In this way, with the continuous improvement of the running speed of hardware such as CPU and memory, the low speed of ATA hard disk has gradually become a bottleneck that affects the running speed of the whole machine. As a result, a new hard disk interface method, Serial ATA came into being.

Serial ATA hard disk is what we often call serial port hard disk, which uses a point-to-point method to achieve data packet transmission, which brings higher transmission efficiency. The Serial ATA version of the hard drive starts at a transfer rate of 150MB s, while the Serial ATA version will achieve a peak data transfer rate of 600MB s, which finally solves the system bottleneck problem of the hard drive.

The SCSI interface is not designed for hard drives, in fact it is a bus-type interface that works independently of the system bus. SCSI interface hard disk is widely used in servers and professional workstations with high stability and low CPU occupancy, and its transfer rate can reach up to 320MB s. Of course, for the overall performance of the hard disk, in addition to the transfer rate of the hard disk, the rotational speed, cache and average seek time of the hard disk are also important factors.

No! It has to do with the quality of media like USB drives! It is also related to the interface, etc.

The bigger the hard drive, the bigger the cache, and the faster it will go!!

No! It has nothing to do with capacity.

Brother above, don't talk so much nonsense, just buy a test card manual and you're good to go.