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Ram upgrade


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20 replies to this topic

#1 mrl636

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Posted 20 March 2010 - 07:10 PM

Hello,
Has this happined to anyone else? I have a Sony Vaio laptop that I just formatted the hard drive and re-installed Microsoft XP home. I used CrucialScan to see what I needed to increase the Ram. It showed it HAD (2) 256mb chips that that I could replace with 512mb. I bought (2) 512mb chips and replaced them. I checked with Crucial Scan and it says I still have (2) 256 chips. I tried HWINFO32 and it shows (2) 512mb chips. The new chips are SUPERTALENT02 size 512 mb each.
Also....
In the System Properties ..General...the computer is an :
INTEL®
Pentium 4 CPU 2.80 GHz
2.79 HGZ 488 MB of Ram

shouldn't the Ram be closer to 1 GB ?


Mike :thumbsup:

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#2 cryptodan

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Posted 20 March 2010 - 07:52 PM

Did you remember to replace the RAM under the keyboard?

#3 mrl636

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Posted 20 March 2010 - 08:25 PM

Hi cryptodan,
I only know about the two slots on the under side of the laptop. Both are filled with the new 512mb chips. I'm wondering why the two scans show different chips. And why the cpu general properties doesn't show the new chips. This is the first time I EVER replace any "inerds" in a cpu. Yes I used gloves as not to touch the chips! Do I have to get under the key board, too?

Mike :thumbsup:

#4 computerxpds

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Posted 20 March 2010 - 08:34 PM

can we get the model of the vaio please.

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#5 mrl636

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Posted 20 March 2010 - 09:11 PM

Hi computerxpds,
Sony Vaio
On the Back: Model PCG-9J5L
On the key board: PCG-FRV26

Mike

#6 cryptodan

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Posted 20 March 2010 - 09:22 PM

Model
PCG-FRV26
Processor
Intel® Pentium® 4 processor 2.80GHz1
Cache Memory
512 KB integrated on-die level 2
Bus Speed
533 MHz
LCD
15” XGA (1024x768) TFT display
Graphics
ATI RADEON IGP 345M 64MB (shared)
Memory
512 MB DDR SDRAM (256MB x 2), expandable to 1024MB


You should be seeing the RAM is it the same speed like PC2100?

#7 mrl636

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Posted 20 March 2010 - 09:32 PM

cryptodan,
I'll have to show my limited knowledge! Where would I see the ram speed?

Mike ????

#8 cryptodan

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Posted 20 March 2010 - 09:35 PM

Seems like you need PC2100

#9 mrl636

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Posted 20 March 2010 - 09:44 PM

cryptodan,
Afer I posted a reply, I thought to look at the HWINFO32 summary again and I see under Modules: Type: PC2700 DDR-SDRAM. Is that what you were asking?

Mike

#10 cryptodan

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Posted 20 March 2010 - 09:46 PM

I dont think you can use PC2700 in your computer.

#11 mrl636

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Posted 20 March 2010 - 09:51 PM

cryptodan
I'll see about getting (2) 512mb PC2100 DDR-SDRAM chips. I'll have to wait till tues to try. Would it hurt the laptop to keep using it this way?

Mike

#12 cryptodan

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Posted 20 March 2010 - 09:51 PM

it wont hurt it at all.

#13 mrl636

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Posted 20 March 2010 - 09:57 PM

Thanks for your help.
I'll post back on tues and let you know what happined

Thanks again

mike :thumbsup:

#14 Platypus

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Posted 20 March 2010 - 10:10 PM

Only utilising half the RAM is commonly because the chip density is too high. How many chips are on the new DIMMs compared with the originals?

Compare for example here:

http://www.memoryx.net/sovapcme112.html

The 512MB DIMMs have twice as many chips as the 256 do, maintaining the same density in Megabits per chip. If this is the cause, it can sometimes be resolved with a BIOS update, but if the limitation is in the chipset/motherboard design, you just have to use the lower density memory.

Crucial indicate PC2700 should be able to be used, as is expected since memory speed is designed to be backward compatible. We also wouldn't expect the speed of the memory to have any influence on its recognised size, although some memory controllers cannot drive their full memory complement at the full speed, so will drop their speed or not operate with faster memory unless the amount is reduced.

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#15 mrl636

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Posted 25 March 2010 - 09:05 PM

Hi Platypus
I went out and bought 2- 512 chips PC2100. CrucialScan still indicates that I only have 2 - 256 chips installed and I could upgrade to 2- 512 chips. The system properities on the laptop still show only 448 MB of Ram and HWinFo32 shows that I have 2 - 512 chips PC2100 installed. I went to your link and found that, as you said, I have to use PC2100. I guess that what I got now with the laptop is the best it's gonna be!


Mike




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