ballinbuck
asked on
Memory
I own an hp pavilion xt919 that runs memory at 100mhz (PC-100). However the memory that came with it is PC-133. It's details are:
MT8LSDT1664AG-133EI PC133U-333-542-A
128mb, SYNCH, 133MHz, CL3
I tried instaling some PC-133 RAM just for consistency but none were backwards compatible and thus didnt work. So I just now found some PC-100 RAM 128 mb that should work. It's details are:
Rk-Byte (division of Reptron) 16x64-PC100 SDRAM 168 Pin
SKU #3756322
However when I added it in nothing happened, it wouldn't boot and was just a black screen. So I switched slots with the original RAM putting the new PC-100 RAM in slot 0 and the original PC-133 in slot 1. The computer began to start up and I was able to go into the BIOS to see that both modules were being read and had a total of 256mb. However after exiting the BIOS nothing happens, just a blank black screen and Windows XP won't start.
When I just try booting with the new RAM only nothing at all happens, just a black screen and sometimes white flickering on the right side of the monitor. I can't even enter the BIOS.
What's wrong?
MT8LSDT1664AG-133EI PC133U-333-542-A
128mb, SYNCH, 133MHz, CL3
I tried instaling some PC-133 RAM just for consistency but none were backwards compatible and thus didnt work. So I just now found some PC-100 RAM 128 mb that should work. It's details are:
Rk-Byte (division of Reptron) 16x64-PC100 SDRAM 168 Pin
SKU #3756322
However when I added it in nothing happened, it wouldn't boot and was just a black screen. So I switched slots with the original RAM putting the new PC-100 RAM in slot 0 and the original PC-133 in slot 1. The computer began to start up and I was able to go into the BIOS to see that both modules were being read and had a total of 256mb. However after exiting the BIOS nothing happens, just a blank black screen and Windows XP won't start.
When I just try booting with the new RAM only nothing at all happens, just a black screen and sometimes white flickering on the right side of the monitor. I can't even enter the BIOS.
What's wrong?
ASKER CERTIFIED SOLUTION
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Send the 'new' chip back and say it's not working.
If your system works with just the old chip but not with the new one at all, it may be incompatible.
I suggest checking a company like Kingston. They
have specially designed memory chips for different computers. It's distinctly possible that the memory chip you bough is just not compatible with your system.
If your system works with just the old chip but not with the new one at all, it may be incompatible.
I suggest checking a company like Kingston. They
have specially designed memory chips for different computers. It's distinctly possible that the memory chip you bough is just not compatible with your system.
ASKER
Jaxtor,
How do I go about changing the BIOS to run at CAS 3? Also, the computer works perfectly fine (except for running slow with XP) with the old memory alone. I'm not sure what CL (I take it that is the same as CAS) the new PC-100 module is.
Mashtar,
The new and memory module has 8 chips (16x8). The old PC-133 also has 8 chips.
Any more help?
How do I go about changing the BIOS to run at CAS 3? Also, the computer works perfectly fine (except for running slow with XP) with the old memory alone. I'm not sure what CL (I take it that is the same as CAS) the new PC-100 module is.
Mashtar,
The new and memory module has 8 chips (16x8). The old PC-133 also has 8 chips.
Any more help?
ballinbuck:
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This old question needs to be finalized -- accept an answer, split points, or get a refund. For information on your options, please click here-> http:/help/closing.jsp#1
EXPERTS:
Post your closing recommendations! No comment means you don't care.
ASKER
I am very sorry for the lapse of time. I was not aware that I did not accept an answer. Once again, I am sorry for the long wait.
If it is it uses 32x8 chips and they cant be used with a PC100-chipset. The highest density a 100MHz chipset can use is 16x8 (8 chip 128 MB module and 16 chip 256 MB module).
The "original" module is a 16x8 single sided module.