mookaloid
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 posted on 23/11/06 at 09:37 PM |
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SDRAM question
I bought some memory from ebay and ho hum ....it doesn't work in my laptop
It won't boot up with this memory in.
I ran the crucial scan and it says I need this
SDRAM, PC133 • CL=2 • Non-parity • 133MHz • 3.3V • 32Meg x 64
the stuff I bought is SDRAM PC133 CL3
what does the CL number mean and does this mean it won't work anyway?
TIA
Mark
"That thing you're thinking - it wont be that."
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flak monkey
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| posted on 23/11/06 at 09:39 PM |
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Its the latency of the memory. Should still work though.
David
Sera
http://www.motosera.com
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mookaloid
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| posted on 23/11/06 at 09:46 PM |
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Any ideas as to why it might not work? or anything I could try?
Cheers
Mark
"That thing you're thinking - it wont be that."
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ned
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| posted on 23/11/06 at 09:55 PM |
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check for any settings in the bios for this?
beware, I've got yellow skin
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mookaloid
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| posted on 23/11/06 at 10:00 PM |
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Had a look in the BIOS and can see nothing which could be to do with the memory
"That thing you're thinking - it wont be that."
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RazMan
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| posted on 23/11/06 at 10:28 PM |
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There should be a CL setting in there somewhere. How about 'failsafe setting' or similar? This should set everything to the least
aggressive settings and might just allow your new memory to fire up. Laptops are notoriously fussy about memory though.
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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mookaloid
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| posted on 23/11/06 at 11:22 PM |
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the only thing that I can find is I can change the boot checks from minimal to thorough which it says you should do if you have changed the memory.
It didn't make any difference though
The laptop lights come on when the power button is pressed and the caps and number lock lights flash a bit then it just goes off again.
"That thing you're thinking - it wont be that."
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Peteff
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| posted on 24/11/06 at 12:02 AM |
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Look for Cas Latency in bios and see if you can set it to auto. Have you mixed the memory or replaced it? Is the bios giving you a checksum error?
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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mookaloid
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| posted on 24/11/06 at 12:09 AM |
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Hi Pete,
No Cas Latency in bios.
It's a dell CPx J650GT and the bios is pretty basic - about the simplest I have seen.
I bought 2x256Mb sticks and it won't work with both or either one on it's own.
The crucial scan tool thingy says it should take 2x256 sticks
When I try to boot it I only get the few flashing lights - nothing on screen at all. I can't even get to the bios with the new memory in.
Cheers
Mark
"That thing you're thinking - it wont be that."
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JackNco
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| posted on 24/11/06 at 02:45 AM |
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quote:
Originally posted by flak monkey
Its the latency of the memory. Should still work though.
David
Try it with just the new memory. see if it boots. 90% of the time it will downclock it but some generic modules dont like being mixed and get them
selves in a bit of a tiz. some times just swaping them round in the sockets has worked for me in the past.
John
Some people are worried about the difference between right and wrong. I'm worried about the difference between wrong and fun.
O'Rourke, P.J. (1989), Holidays in hell. London (Picador)
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ecosse
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| posted on 24/11/06 at 08:45 AM |
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quote:
Originally posted by mookaloid.
It's a dell CPx J650GT
The only dell product I can find which relates to the ref given above is
Kingston - Memory - 256 MB - SO DIMM 144-PIN - SDRAM - 100 MHz - 3.3 V - non-ECC
If this is what you are referring to (?) the critical bit could be the speed rating, as while the clock timings can usually be mixed the speed is not
always so.
SDRAM, PC133 • CL=2 • Non-parity • 133MHz • 3.3V • 32Meg x 64
can you confirm the the model of laptop you have?
Cheers
Alex
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mookaloid
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| posted on 24/11/06 at 10:51 PM |
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Apparently I need pc100 and the seller has agreed to refund
Thanks guys 
"That thing you're thinking - it wont be that."
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Peteff
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| posted on 24/11/06 at 11:22 PM |
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PC133 is downward compatible, it should still work at the lower clock speed. There must be something wrong with it though. I have some in an old
computer running in place of PC66 and it works fine as long as you run matched pairs (motherboard requirement)
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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mookaloid
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| posted on 24/11/06 at 11:46 PM |
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I agree Pete. I always thought the same about speeds however the guy will refund so I will go with that and try to get some from Crucial or someone
like that.
Cheers
Mark
"That thing you're thinking - it wont be that."
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JackNco
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| posted on 25/11/06 at 12:10 AM |
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quote:
Originally posted by Peteff
PC133 is downward compatible, it should still work at the lower clock speed. There must be something wrong with it though. I have some in an old
computer running in place of PC66 and it works fine as long as you run matched pairs (motherboard requirement)
Not always, i used 2 work at eclipse-computers.com when 100/133 was current tech n some motherboard just dindt like doign that and just wouldnt
especialy if u were mixing and matching.
Some people are worried about the difference between right and wrong. I'm worried about the difference between wrong and fun.
O'Rourke, P.J. (1989), Holidays in hell. London (Picador)
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