Replace motherboard and CPU?

The idea is incorrect: 1, if you just want to make the CPU high, you can go to Celeron 4 40 yuan or so (second-hand). If you think it's still low, then most of the motherboards corresponding to the CPU at a higher point are SATA interfaces, and your hard disk can't be used at all, so your upgrade ideas are a bit inconsistent from this point of view.

And whether it's only a CPU or a CPU, or a motherboard, it's not okay not to change the memory, unless you can tolerate the existence of a big horse-drawn cart! Even if you only increase the CPU, your memory is a bottleneck that seriously affects the performance of your machine! Not to mention the size of the memory, DDR267 must be changed, because 845 supports DDR333 at the highest, if you don't change it, your other DDR333 will have to be downclocked to 267 because of the use of another DDR267, not to mention that if the CPU rises to memory, it is the best configuration of the machine.

Another digression: Personally, I think it's best to upgrade the CPU without changing the motherboard, and I seriously agree with the point of view upstairs, if you want to upgrade the motherboard, you can only be second-hand, and the second-hand motherboard does have a lot of problems, so

In view of the above pertinent advice to the landlord: in fact, this machine can still play its residual heat when upgraded, the best configuration upgrade plan: CPU on Celeron 4 about 40 yuan, memory plus a 1G DDR333 110 yuan or so (DDR267 to deal with), it is possible to change a hard disk, because after upgrading the CPU and memory, the hard disk is your bottleneck!

If not, then the performance of the upgraded u and memory will be discounted to a certain extent. It is recommended that the Seagate IDE 160G 7200 is about 310 yuan or the Seagate SATA 320G 7200 is about 350 yuan, and then buy a SATA IDE adapter card for about 20 yuan, so that you don't need to buy a hard disk for future installation. As for the graphics card, it can be based on your needs:

The 256M 128bit AGP is now about 130 yuan for second-hand, and about 210 for double 256. In this way, if you don't upgrade the graphics card, all of them will come down to 460-520 yuan, which can be done.,This is already the limit of this machine upgrade.,If it's not enough in the future, just reinstall it.。

If you're swapping out your current motherboard and CPU, then memory is a must. One is DDR333 and DDR266 memory, which is more usable for current motherboards.

If you must upgrade, it is recommended that you use your brain on the current configuration, such as upgrading the CPU to Pentium 4, increasing the memory to 1G, you don't write the graphics card in it, if you can, it is recommended to upgrade to a graphics card of 128M or above, the hard disk can be increased or kept unchanged as needed, it is no problem, so that it can improve the overall performance of your current whole machine.

If memory serves, the 845D can only support 533 external clocks, and if you find a P4B CPU (533 external frequency), you can not change the motherboard (just brush it), or, change to 865P, find a CPU like P4 631.

PS: Your upgrade idea is weird.

Like your configuration, I'm afraid that there is no new goods now, I can only go to the second-hand store to buy the old one, change to a P4 or so, just add a memory, how to plan to buy the old motherboard, I recommend that it is best not to buy, most of the old motherboards in second-hand stores are not very good, easy to go wrong.

It's best to replace them all, memory and hard disk are bottlenecks!