Upgrading the laptop memory

[shah]

My laptop HP 6530b has Core2Duo 2.66 GHz and 2GB of memory running at 400 MHz. The way the laptop runs it does not feel like it is a Core2Duo 2.66 GHz laptop. I bought two 2GB 800 MHz PC6400 modules. I opened up the laptop memory compartment, and to my surprise I only see one single slot, and it was empty, so I went ahead and put the module in it. I was expecting another module, the factory installed one, but I didn't see it there, so I could not replace the second module.

Anyway, I started the laptop and now it shows the 4GB memory, but it of course continues to run at 400 MHz. CPU-z is showing 6-6-6-18 @ 400 MHz.

What do I do? How do I get rid of the factory-installed memory module. It is dragging it down. Or do I have to make some changes in the BIOS to get it to 800 MHz. The laptop specs say that it comes with 2GB memory at 800 MHz. So what is limiting the memory in my laptop.

 

[PreferLinux]

Check the BIOS. If it is the RAM though, find the laptop service manual, and it will show you how to get to the factory installed module.

 

[galeener]

Hmm this is the only link or hp site i could find for you system on memory upgrade.
may help may not
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&taskId=115&prodSeriesId=3687446&prodTypeId=321957&prodSeriesId=3687446&objectID=c00301703

It does say its upgradable to 8gig of 800mhz with 2 4 gig modules. I can't seem to find any diagram that shows it in detail though.
http://bizsupport2.austin.hp.com/bc/docs/support/SupportManual/c01506643/c01506643.pdf
also this not very clear
http://bizsupport2.austin.hp.com/bc/docs/support/SupportManual/c01544660/c01544660.pdf

http://www.officespecialties.com/pdfs/10-1012226012.pdf

Ah I see the main mdule is on the top side of the mother board and the expansion is on the bottom side. Thats why you were seeing an empty slot.
You have to follow the guide and remove the keyboard to replace the main module.

 

[shah]

Thank you. I was able to replace the primary module with one of the new modules. Unfortunately they are still coming up at 400 MHz. The timings are 6-6-6-18. I went into BIOS, surprisingly it has graphics interface. But it appears to be very basic. I did not see all the cool features that BIOS usually has, like multipliers to over-clock etc, nor I saw any place to change those memory timings.

I don't know what's going on. I don't even know what I should set those values to even if I see the options. I really need to get it up at 800 MHz.

Any help will be appreciated.

 

[galeener]

does it say 400 in cpuz and is that the actual double rate speed or is it 400 and you have to double it = 800mhz

 

[shah]

Yeah, I just found out that PC2-6400 800 memory is a dual channel memory and it needs to run at 400 MHz but effectively it runs at 800 MHz.

 

[galeener]

Well there you go then all set