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(NT) Dosen't sound like it
You should put in 2 512's instead of 1 1024.
You may need matching pairs to run properly.
If you put a 1024 and a 256 in one pair and the 256 in the second, that may be the problem too.
If you don't need matched pairs try putting the 1024 by itself. The 256's in the second pair.
In my computer, I need matched pairs so the sockets are different colors. A blue set and a black set.
Yes, as ASB suggests, if the computer supports
dual channel, the two 256's must be in specific slots. Read the manual to see what pairs of slots go together for Dual Channel operation..
tried doing 256, 256, 1024, empty so they were paired, but it made no difference... what i think now is that my motherboard is incompatible with the memory, i've heard of ram only showing up as half of its amount if you have the wrong motherboard... dunno why some tests showed the full 1536 mb though.
The "pairing" varies
with various mobos. In some the pair is one from column A and one from Column B, while others the pairs are the adjacent slots. Thus your reply may not be meaningful.
when i bought the computer, the 2x256 worked with one in each column. When i first installed the new memory, i just put it in an empty slot; i also tried it with the 2x256 in the same column, and neither worked; no, as i said in my previous reply that apparently wasnt "meaningful", im pretty sure the computer is only detecting half of the 1024. it especially makes sense considering the computer maximum of 2048 total and 4 slots total that it would only support up to 512 in a single stick. now i just wish i hadnt spent my $52 on double what i could have used...
Maybe this would be a good time to ...
tell us what MB you have . . . mfg and model #
If necessary . . . download, install and run CPUZ
ok, info then
heres all the info that seems like it might be relevant:
processor: p4 3.0 ghz
memory: ddr-sdram 1024 mb
specifically, 2x256mb samsung M3 68L3223ETN-CB3 PC2700, 1x512(should be 1gb) dialog TGT... oddly there is no serial number or manufacturing date listed in cpu-z. theyre all unregistered, unbuffered, and no correction.
motherboard: ASUS P4SD-VL
BIOS: American Megatrends v1005
please tell me if theres anything else that might be useful for this
This is an ASUS motherboard but..
it'a a motherboard made by ASUS for another mfg...perhaps SONY. Right ? You need to get your info from that mfg ...SONY I believe.
So check your system DOCs...it should tell you exactly what you need to know. My guess is you should have bought two DIMMs at 512MBs ea....but now that you have one 1GB DIMM...you should probably just get another obe just like it. That would give you 2GB.
Looks like your system has an Intel 865PE chipset and if you have problems ...you can probably go to any mb mfg that makes a MB with the Intel i865PE and see what RAM combinations are possible.
yea, its a sony vaio pcv-rs520... but unfortunately, if you look at the documentation, it just says that it has a 2gb max, nothing about a lack of support for a 1gb dimm... but why would an extra 1gb stick help, wouldnt it just show up as 512 like my current one? what it seems i should do if i want 1.5gb is just get 2x512 to add to my 2x256... but since i already bought the 1gb, dunno what i should do..
Rock and a hard place
I think you could get a matching 1 gig memory card and just run the 2 1 GB cards (not use the original mem cards) or buy 2 512 MB cards and put them in with the original memory.
You should call or e-mail Sony.
sony vaio pcv-rs520
Sony VAIO PCV-RS520....
There's a link on the online manual that may help...
perhaps it will give you additional info not provided in the manual.
If this is truly an ASUS MB based on the Intel 865PE chipset....you should be able to use the guidance for the memory combinations stipulated for any similar ASUS MB based on that chipset. Look for P4P800 Deluxe.
Again my advice remains ... get another 1GB DIMM ...just like the other one you bought and ditch the 2 x 256MB DIMMs. Though designed for 4 DIMMs many systems do not work at max speed with all RAM in all four DIMM slots.
So you are saying sometimes it's better to have a pair of 512's, as aposed to two pairs (4 total) of 256's.
I'm curious because I now have a pair of 256's and to get to 1 gig, I'm not sure if I should buy a pair of 256's and add it (I'm not sure how close I can match the original 2) or go with a pair of 512's.
I was even looking at buying two pairs of 256's.
spoke to sony support
found out some more info yesterday, it seems that the ram is high density, which might explain it, and unfortunately the sony rep i managed to contact had never heard of it... and in all the online support stuff, including manuals and such, there isnt any specification about high density ram. is there anyone here that can help with that?
oh, and i would sooner return my 1gb dimm and get a 512mb, or just keep using what im using, than get a second 1gb dimm, just because of the cost.
Back to my problem
Since this thread was highjacked to someones elses problem I will tell you that when you visit websites that sell RAM and they run a scan to see what RAM is compatible with my computer, it only show 256 as the highest number that will go to my computer. They also state that my computer will hold three sticks of 256. 768 is the total RAM my computer will hold.
er, is this post in the wrong thread? cause i was the one that started it, and it definately hasnt been ''highjacked'', and your response is unrelated...
Yup...looks to me like he's in the wrong church and..
the answer is only correct if the shopper elects to have the mfgs program scan your system ... and I never, ever do that as I've always got the make/mfg, series and model number.
the problem is...
i bought the ram on ebay... yea, not a good decision... still, $51.95 is a good price for 1gb memory... not for 512mb though.
See the ASUS MB Manual on the P4P800 Deluxe
It has some relevant info re the way memory works in what combinations in MBs with the Intel i865PE chipset motherboards. Pages 2-11 and 2-12. Best option is 2-1GB DIMMs in banks A1 and B1. Second best would be 512MBs in DIMMs A1 and B1 and the original 256MBs DIMMs in A2 and B2. Then you have 1536MBs RAM and they'be operating n the DUAL CHANNEL mode.
Next time ... ask before buying and be careful who you take advice from. Some folks who provide response may be giving you bad advice and you'll never know until you act on it.
still would like to know about high density
^subject title^ cause at this point, all i really want to know is if i can use the 1gb high density ram stick i bought is useful for anything... so any info specific to high density ram would be really appreciated
and by the way, thanks to everyone who has supplied information in this thread, it's helped a lot, even if i haven't solved the problem yet
high density ram
I searched on the web and mostly got forums where people were asking the same thing and not getting a responce.
It has to do with how dense the bits of data are on the chip.
One guy said if your mother board doesn't support High Density Ram, it will only see half.
They were getting responces saying "Return it" and "Resell it on eBay".
well... i suppose ill return...
thanks for the help... i got the same sort of things when is searched... i suppose ill return it (unfortunately my seller makes me pay the shipping charge) and then get a 512mb or maybe 2 of them...
Read the MB Manual I suggested
There are several lessons here ...
1. Read the suggested manual at least the part suggested so you don't make the same mistake again like getting 1 DIMM @ 1GB instead of 2 @ 512MBs for a total of 1GB or getting 1 @ 512MBs when you should get 2 @ 512MBs ea. It will give you the info you should have gotten from SONY.
2. Ask your BEFORE you BUY
3. While the system CAN run without DIMMs in PAIRS ... it is designed to run at FULL SPEED or MAX PERFORMANCE when the DIMM slots are populated in PAIRS.
Re density ... unfortunately that's a relative term. When a MB is designed it is designed to one spec. But as time goes on, technology changes and as it pertains to RAM ...they make chips with higher densities. Sometimes they work with the older systems but others they don't. I'm not 100% sure whether your issue is because you didn't populate the DIMM slots they way you were suppposed to or it was a density issue. Too bad you couldn't try a pair of 1GBs DIMMs as indicated in a previous message to operate in the DUAL channel mode...like the 2 DIMMs @ 256MBs each should be running presently assuming you've got them in the right slots. If you do add 2 - 512MBs ... I'd suggest placing them in DIMM slots A1 and B1 vice A2 and B2.
i took a look at it... and in fact, i think that a 1gb dimm would work, just not with high density.. but i found a better deal (finally) on 2x512, usually it costs more. i think the standard for high density is 128x4 instead of 68x8 which is the normal i think. as for the configuration, i tried a bunch of different ways; in any case sony at least gives a recommendation for that, 512, 256, 512, 256, once i get my new set.
EBay for RAM? Like they said - you get what you paid for. You don't know where that RAM has been. Return it and use my Crucial link with your new system info. Consider it a lesson learned.
dont be so harsh on me :P... the ram was new and sealed, the company had good feedback (yes, company, not seller), and the specs were fine, i just didn't know about "high density" and stuff. grr. and ive used the crucial link... i in fact bought some new ram, i gotta return the old stuff now.
took a look
yea, i already took a look at that... one thing though is that the crucial one tells me to use pc3200 instead of pc2700 when everywhere else (including inside my comp) tells me to use pc2700.. kinda annoying.. but i suppose it is backwards compatible. still no faster. anyway, im getting 2 dimms of 512mb, low density, one manufactured by crucial, one by lenovo (ibm). and by the way i did update the bios
You May Still Have Problems
With the mismatched RAM, you might still have problems. I am guessing if they are both better RAM, you will be fine though. Sorry if I sounded a little rough on you. RAM is a very important part of your system, and it is the wrong place to go cheap.
thx for advice
i really do thank you for the input; i still think that its not a question of "better" though, just of me reading the fine print. and as for going cheap, i always deal hunt, just something i always gotta do. and i too think that mismatched ram should work if only because the samsung ones that came with the computer arent completely standard for the type of computer and they work fine in any slots...
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