Computer upgrade is a plus 30 points, and a computer upgrade is a plus

1. For mapping, there is no need to upgrade your machine, because it is a discrete graphics card, and 512M memory is actually enough. Of course, for memory-consuming software such as ps, it is still very helpful to increase the memory to 1g. CAD drawings are not necessary.

2. If you change the memory, it is recommended to sell the original one and replace it directly, because your P4 external frequency is 200, which can be matched with DDR400, and 266 will have a loss in performance. If you mix the old and the new, the new one will also drop to the 266 level, which is a loss. DDR400 512MX2, dual channel is recommended.

The performance will be about 20% stronger than a single 1g

The chipset does not support DDR2 memory.

The chipset supports dual channels. For the Intel platform, the dual-channel is to look at the motherboard, because the memory controller is integrated in the Northbridge chip; AMD's CPUs have integrated memory controllers, so it's up to the CPU to decide whether or not to support dual channels for AMD platforms.

Your P4 is the overclocking king of the 478's P4 cores, a very classic piece of core, even overshadowing the overclocking myth of AMD's Barton2500+. 865PE is also the strongest motherboard of 478, if your board and memory are true, adjust the CPU frequency to 300 in the BIOS (the main frequency is reached, plus DDR400 memory, the performance is absolutely strong.)

865PE seems to support dual-channel, the specific memory insertion method, you plug in different slots and use CPU-Z to test it, if there is dual-channel in the memory option, then your current insertion method is correct. The test memory slot is available in 2 colors. You'll find out if you try them separately.

I don't know what renderings you do.

Your overall is okay.

You can be small overclocked. Fart 4c is very super.

It is possible to sell one memory. Buy root 512m. It becomes 512+256m

You can't change the graphics card, you can also pay attention to it, or change it to a 6600agp, but it's not cost-effective. No matter how high it is, it can't be drawn.

Your board can only use DDR, not DDR2.

There are pros and cons to the dual channel, and you can't feel the specific performance improvement obviously.

If you need to, add some memory, and you don't need to move the rest.

Use it to the old and then replace it with a new one, the memory doesn't have to buy a new one, to the second-hand or to ** buy a 512 plus it, but the memory frequency is the same.

First of all, whether your board is 478 architecture or 775. If it's 478, don't change the board and CPU, at most you can change to a larger CPU, but the effect is not very outstanding.

Second, if you do the design, you can consider changing to a 256m graphics card, ** is not very high, five hundred oceans can be done. It is recommended that you use 1 g, less than four hundred.

Third, there is no need to change the others, and the 80g hard disk should be enough.

No, or you can buy two more 256 ones.

You do that and it only leads to instability.

The memory is low, and the graphics card doesn't need to be changed if you don't play and play, and the hard disk home is enough.

Add memory, if you want to keep the original one, if you are DDR, you have to add DDR, and if it is DDR2, you need to use DDR2. Specifically**, you can ask a few more in the accessories market.