600x 8EU Only Detects 128MB of 256MB

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Biggs · #1 Post by **Biggs** » Sat Oct 15, 2005 10:32 pm

I got this RAM off eBay,

Brand: Micron
Capacity: 256MB
Part #: MT16LSDF3264HG-10EE4
Chip Configuration: 32Mx64
Type: 144 pin SODIMM for laptop computers
Speed: PC100 100MHz
Latency: CL2
Low Density
Double sided with 8 chips on each side (Total: 16 Chips)

However, it's only being detected as 128MB! I tried putting it on either slots and used the BIOS "Initialize" option but to no avail.

The BIOS reports that I have "320MB Total Installed Memory" but only "256 Usable Memory". The sticker even says 256MB so how come only half of it's capacity is being utilized?

Website · #2 Post by **tfflivemb2** » Sat Oct 15, 2005 10:50 pm

Is your first (original) chip a PC100 also?

If it is a PC66, then the system will most likely only detect half of the second stick.

Biggs · #3 Post by **Biggs** » Sat Oct 15, 2005 11:27 pm

I'm only using the lone 256MB stick (together with the built-in/soldered 64MB that came with the 600x).

Laptop_wizard · #4 Post by **Laptop_wizard** » Sun Oct 16, 2005 9:42 pm

Is it possible that the onboard ram or anything in the BIOS has been disabled? also, it's possible that the chip is defective, you know what they say, SH*T happens. try another chip, if you get the same problem, then your motherboard might be bad or improperly configured.

Hope this helps.
Regards.

whizkid · #5 Post by **whizkid** » Mon Oct 17, 2005 10:32 am

Make sure your BIOS is at the latest revision.

Biggs · #6 Post by **Biggs** » Mon Oct 17, 2005 12:58 pm

whizkid wrote:Make sure your BIOS is at the latest revision.

It is.

whizkid · #7 Post by **whizkid** » Mon Oct 17, 2005 1:25 pm

256MB available is not using half. It's using 3/4, which is just wacky. It seems like your original 64MB is not being used.

Can you run the machine with just the internal memory?

I would try PC-Doctor's memory test and maybe memtest86 to do a thorough test of both the internal memory and the new stick.

Biggs · #8 Post by **Biggs** » Mon Oct 17, 2005 1:35 pm

whizkid wrote:256MB available is not using half. It's using 3/4, which is just wacky. It seems like your original 64MB is not being used.

Can you run the machine with just the internal memory?

I would try PC-Doctor's memory test and maybe memtest86 to do a thorough test of both the internal memory and the new stick.

My bad. When I place a lone 256MB stick, it should have 320MB total. However, I only get 192MB. When I put the 256MB stick together with a 128MB stick, the total should be 448 but I only get 320MB. If I don't put any stick at all, it shows 64MB. Hope this clears it up.

Jald · #9 Post by **Jald** » Sun Oct 23, 2005 3:14 pm

Just try to exchange the memory ships from one slot to another slot. I have 2x128m memory chip, one is 133mhz., the other is a 100mhz. And my thinkpad detects all the memory only if the ships are in a certain combination.
Good luck.

600x 8EU Only Detects 128MB of 256MB

600x 8EU Only Detects 128MB of 256MB

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