testing memory speed
Is there a utility to test memory speed? I looked at memtest in ports, but it looks like that mainly tests for faulty memory. I did a websearch and found a command: dd /dev/zero /dev/null, but that doesn't seem to summarize the memory speed easily for me. Can anyone else give me a pointer to how to test my machine's memory speed? How can I find out whether a memory stick is compatable with an old box? TIA. -- David S. Jackson[EMAIL PROTECTED] =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= I used to work in a fire hydrant factory. You couldn't park anywhere near the place. -- Steven Wright To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
Re: testing memory speed
On Mon, 9 Dec 2002, David S. Jackson wrote: Is there a utility to test memory speed? I looked at memtest in ports, but it looks like that mainly tests for faulty memory. I did a websearch and found a command: dd /dev/zero /dev/null, but that doesn't seem to summarize the memory speed easily for me. Can anyone else give me a pointer to how to test my machine's memory speed? How can I find out whether a memory stick is compatable with an old box? The speed of the memory is a hardware issue. If you mismatch the speeds of your memory and your motherboard, then the board will either try and force the memory to run a the speed it wants, or the motherboard will drop it's bus speed down to match that of the memory. Either way, I don't think that software is able to tell you if a stick of memory should be running at the speed it is, because the software can only read what the motherboard is running at. My suggestion would be to just try the memory. If it doesn't work, you won't break anything. The worst case scenario is that the motherboard detects the wrong size of memory if the speed is mismatched, which should still be usable anyways. To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
RE: testing memory speed
Some BIOS detect memory speed and size. Mine showed a mismatch in speed 100 on one and 133 on another. Changed to both 133 and did not really see a difference. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Jason Hunt Sent: Monday, December 09, 2002 10:08 PM To: David S. Jackson Cc: [EMAIL PROTECTED] Subject: Re: testing memory speed On Mon, 9 Dec 2002, David S. Jackson wrote: Is there a utility to test memory speed? I looked at memtest in ports, but it looks like that mainly tests for faulty memory. I did a websearch and found a command: dd /dev/zero /dev/null, but that doesn't seem to summarize the memory speed easily for me. Can anyone else give me a pointer to how to test my machine's memory speed? How can I find out whether a memory stick is compatable with an old box? The speed of the memory is a hardware issue. If you mismatch the speeds of your memory and your motherboard, then the board will either try and force the memory to run a the speed it wants, or the motherboard will drop it's bus speed down to match that of the memory. Either way, I don't think that software is able to tell you if a stick of memory should be running at the speed it is, because the software can only read what the motherboard is running at. My suggestion would be to just try the memory. If it doesn't work, you won't break anything. The worst case scenario is that the motherboard detects the wrong size of memory if the speed is mismatched, which should still be usable anyways. To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
Re: testing memory speed
On Wed, Dec 18, 2002 at 11:24:06PM -0700, Mike wrote: Some BIOS detect memory speed and size. Mine showed a mismatch in speed 100 on one and 133 on another. Changed to both 133 and did not really see a difference. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Jason Hunt Sent: Monday, December 09, 2002 10:08 PM To: David S. Jackson Cc: [EMAIL PROTECTED] Subject: Re: testing memory speed On Mon, 9 Dec 2002, David S. Jackson wrote: Is there a utility to test memory speed? I looked at memtest in ports, but it looks like that mainly tests for faulty memory. I did a websearch and found a command: dd /dev/zero /dev/null, but that doesn't seem to summarize the memory speed easily for me. Memtest does give an indication of speed. It appears for example from my use of it that DDR ram is about 50% faster than the ordinary stuff... As has been pointed out by another poster, it is not quite so cut and dried as the pure speed of your memory, bus speed etc comes into it. Anyway just get a 2nd mortgage on your house and buy some RIMM .. ho ho.. -- Regards Cliff Sarginson The Netherlands [ This mail has been checked as virus-free ] To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
