|(I started typing this when there were no responses, and your first post said 200mhz, not 100mhz)|
There are lots of different P4 3.0 ghz cpus.
We need to know your model in order to determine which possible 3.0ghz cpus you could have, and what the appropriate host frequency should be.
Tell us the make and model of your brand name system, or if you have a generic desktop system, the make and model of the mboard.
The specific model of a brand name system is shown on a label on the outside of the case somewhere, or it can often be determined by going to the brand name's web site.
The model, sometimes the make, of a mboard in a generic desktop system is usually printed on the mboard's surface in obvious larger characters, often between the slots.
The model is often also displayed on a logo (graphical) screen early in the boot, but it's often not as specific as the specific model number.
For Dell computers, they have a Service Tag number - the specific model can be determined by using that on their site, or can often be determined there automatically by you downloading some software. The Service Tag number should be on a label on the outside of the case, probably on the bottom on a laptop, on the back on a desktop, and is often also shown in the bios Setup.
It does no harm to the cpu when the host frequency is lower than it should be, but it's probably running slower overall than it should be if the host frequency is lower than it should be. If the host frequency is right, the overall speed of the cpu will be what it should be. If it's too high, if that's even possible, the cpu won't boot.
Games tend to have more more bugs in them than most programs, it's well known they do not work properly on all systems that at least meet the minimum requirements for the game, and they alone can produce blue screen messages in some circumstances on some systems. If you ONLY get the blue screen messages when you play a game, it's probably the game that's the problem. You could look to see if there are updates or patches or mentions of your problem in the FAQs and how to fix the problem on the game maker's web site, but often there's nothing you can do, and that game won't work properly on your particular system.
Not enough ram doesn't cause Windows blue screen messages, but a poor connection of the ram in it's slots, or ram that is not 100% compatible, can.
See response 2 in this - try cleaning the contacts on the ram modules, and making sure the modules are properly seated:
For a laptop, or netbook, you must remove both its main battery and AC adapter before you do that.
Messages about insufficient memory in Windows are not about the the amount of physical ram installed in the mboard. They are either
- you're not using default settings for the size of the virtual swap file and it's too small, sometimes.
- or - there is not enough free space on the partition Windows is installed on for Windows to make a virtual swap file large enough, sometimes.
-or - there are bugs in programs you are using - e.g. common for games - and they are not releasing the swap file memory they are using properly.