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new ram not detected on my pc

July 30, 2011 at 05:51:14
Specs: Windows XP service pack 3 32bit, pentiumD 3ghz / should be 2gb

i had a 1gb ram installed on my computer. now i bought the product below, kingston 1gb memory and installed it perfectly in my second memory slot. i was told that those will work together and i will have 2GB. but when i opened my computer, i see that i still have 1GB - according to windows task manager and dxdiag. only the program CPU-z saying i have 2g ram, but that program read the data from the stick itself and not from the system's available memory. thats only proof i installed the stick currectly, i guess.
so whats the problem?

See More: new ram not detected on my pc

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#1
July 30, 2011 at 05:58:17

Change the virtual memory setting to system managed. You can find instructions on the net.

How do you know when a politician is lying? His mouth is moving.


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#2
July 30, 2011 at 07:16:54

i am afraid to touch that.. are you sure this will make my computer detect 2GB safley?


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#3
July 30, 2011 at 07:31:42

Pause the post screen(press pause break key) to see memory details or BIOS can provide memory info.

@guapo
Virtual memory takes hard drive space(windows uses as if it were RAM) & not system memory.

We can not fight new wars with old weapons, let he who desires peace prepare for war - PROPHET.


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Related Solutions

#4
July 30, 2011 at 07:42:05

Tell us the make and model of your brand name computer, or if you have a generic desktop system, the make and model of your mboard,

"i was told that those will work together and i will have 2GB"

By who ?
Most people who say that don't actually know that for sure.
Both modules must be compatible with using them in your mboard, and both modules must be compatible with being used together.
Sometimes individual modules will be recognized fine when installed by itself, but when more than one is installed, one or more will not be recognized properly.

Does your computer's bios Setup recognize that 2gb of ram is installed ?

NOTE that if you are using onboard video - a video adapter that's built into the mboard - some bioses will report the total amount of ram detected minus the amount of ram being shared with the onboard video. Whatever the bios reports is what is listed as Total Physical Memory in System Information in Windows. It's extremely unlikely the bios would automatically change the amount of ram shared with the onboard video to 1gb when you install 2gb of ram.

You can look up which Kingston module part numbers are listed for your model - are compatible with your model - by using the make and model of your computer to search with on the Kingston web site.

If the other module is not a Kingston module but is a brand name module, the other brand's web site should list the module part number you have when you use your computer make and model to search with.
If it's generic ram, that's difficult or impossible to do.

"only the program CPU-z saying i have 2g ram, but that program read the data from the stick itself ..."

CPU-Z reads data that has been entered onto the tiny SPD chip that all DIMM modules have on them.
In some cases if you have installed a ram module that is incompatible with using it in your mboard, CPU-Z will find that data for the module that Windows or the mboard bios is not detecting.


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#5
July 30, 2011 at 07:49:44

to tubesandwires,
how do i know if they are compatible?
my motherboard is RC410 and its support up to 2GB (1gb in each side or 1 2gb stick) according to manual. in the last 3 years i had a 1gb stick that is 667mhz ddr2. the stick i bought is listed above. are they compatible?
and yes , i have onboard video thats why i see 896mb.

"Does your computer's bios Setup recognize that 2gb of ram is installed ?"
where i can find my memory info in the bios setup?

edit: i found it, it also says i have 896mb ram.

"If the other module is not a Kingston module but is a brand name module"
i dont sure if its brand or generic. i guess its a generic.


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#6
July 30, 2011 at 08:31:10

"my motherboard is RC410 "

You have an "OEM only" ECS mboard model. It was supplied to a brand name system builder by ECS, but it is not a retail model and there is no info about the model on the ECS web site, and Kingston has no listing for the mboard model.

It's probably this one - it can be in other brand name systems other than HP's, e.g. it's also used in Gateway systems.

Motherboard Specifications, RC410-M (Asterope3)
http://h10025.www1.hp.com/ewfrf/wc/...

Excerpt

Memory upgrade information

•Single-channel memory architecture
•2 x 240-pin DIMM sockets support unbuffered non-ECC 400/533 MHZ DDR2 memory modules
•Maximum HP/Compaq approved memory is 2 GB
......

You can install ram that is faster than 533mhz, if the module is otherwise compatible with the mboard, but according to that info, your mboard can only run it at a max of 533mhz.
.......

Ram that works in another mboard , or any ram you buy or have lying around, may not work properly, or sometimes, not at all - even if it physically fits and is the right overall type (e.g. SDram, DDR, DDR2, etc.; PCxxxx, xxx mhz) for your mboard. In the worst cases of incompatibilty your mboard WILL NOT BOOT all the way with it installed, and the mboard may not even beep - the ram has to be compatible with the mboard's main chipset, or in the case of recent mboards, compatible with the memory controller built into the cpu.

See response 5 in this for some info about ram compatibilty, and some places where you can find out what will work in your mboard for sure:
http://www.computing.net/hardware/w...
Correction to that:
Mushkin www.mushkin.com

In your case, you use the make and model of the brand name system the RC410-M mboard was in to look up which ram is listed for it.
However, Kingston often lists brand name system specific module part numbers for the ram, not the part numbers for modules it would find if you had used a retail mboard model to search with.
(On the other hand, most web sites where you can look up the ram that will work in your mboard, e.g. the Crucial web site, do not list brand name system specific module part numbers.)
.........

""Does your computer's bios Setup recognize that 2gb of ram is installed ?""

"where i can find my memory info in the bios setup?"

You have a brand name system bios version on the mboard. Usually we cannot find information about what is seen in a brand name system bios version, so I don't know.
....

"edit: i found it, it also says i have 896mb ram"

The bios is detecting only 1gb of ram - 1,024mb - and is presently subtracting 128mb from that for the amount of ram that is being shared with the onboard video.

Usually the amount .that is being shared with the onboard video can be changed by the user in the bios Setup somewhere. It should never be set to more than half of the total amount of ram installed, and the lower you can set that and still have video performasnce that is acceptable to you, the more ram Windows itself can use.

""If the other module is not a Kingston module but is a brand name module""

"i dont sure if its brand or generic. i guess its a generic".

Brand name ram has it's brand on the label on the module, but sometimes that label may have fallen off over time.

CPU-Z may show whether that module is generic or not.


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#7
July 30, 2011 at 08:48:41

i didnt understand. is the memory stick i just bought
Kingston kvr667d2n5/1g 1gb ddr2 pc2-5300 240-pin dimm
compatible with the mboard?
yes, according to all specifications.
is it compatible with the other stick?
thats what i want to know, i dont know my old stick brand all i know it is a 1GB 667mhz ddr2 like the kingston i just bough.

if it is compatible with the other stick why i dont see 2g in the bios?


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#8
July 30, 2011 at 08:57:21

"In your case, you use the make and model of the brand name system the RC410-M mboard was in to look up which ram is listed for it.
However, Kingston often lists brand name system specific module part numbers for the ram, not the part numbers for modules it would find if you had used a retail mboard model to search with."

Kingston probably does not list kvr667d2n5/1g for your brand name systerm model.
If it doesn't then you can't be sure it will work in your mboard - it may, it may not.

Try the kvr667d2n5/1g installed by itself to see if it's detected.
If it is, if you buy another idfentical one, your mboard will recognize 2gb of ram for sure.
If it isn't, there's probably nothing wrong woith it but you can't use it with your mboard.


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#9
July 30, 2011 at 09:12:46

it is compatible with my mboard.
so you are saying i have to buy another one now?

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#10
July 30, 2011 at 12:12:02

You're not "getting it" !

The ram module is compatible with your mboard ONLY if your mboard detects it properly !!

""...it also says i have 896mb ram""

"The bios is detecting only 1gb of ram - 1,024mb - and is presently subtracting 128mb from that for the amount of ram that is being shared with the onboard video. "

Your mboard's bios is NOT detecting the new module at all, at least it isn't when both modules are installed !

"...only the program CPU-z saying i have 2g ram..."

CPU-Z can read the data the manufacturer entered onto the tiny SPD chip on the module even if it is not compatible with the mboard !

The SPD chip is what the bios reads to determine the settings for the ram module, and/or for the ram as a whole if there is more than one installed.
If you have more than one module installed, the bios sets the speed for all the ram to the slowest specs of all the modules.

The fact that CPU-Z finds that info probably indicates there is nothing wrong with the module or with the connection of the new module to the ram slot contacts - the module is probably seated in the slot fine.
You could try re-seating the new module in it's slot, but I strongly suspect that won't help.

If the mboard does not detect the new module when it's installed by itself, you probably bought INCOMPATIBLE ram !

Your problem is VERY common !
..........

"In your case, you use the make and model of the brand name system the RC410-M mboard was in to look up which ram is listed for it."

"Kingston probably does not list kvr667d2n5/1g for your brand name systerm model."

When you search using the brand name system make and model on the Kingston web site....
"Kingston often lists brand name system specific module part numbers for the ram, not the part numbers for modules it would find if you had used a retail mboard model to search with."

Kingston probably lists brand name system specific module part numbers for the ram in your case. I strongly suspect kvr667d2n5/1g is not one of those.

In almost all cases, Kingston does not list faster ram modules than the brand name system builder or the the retail mboard model originally specified.

Faster modules will work if the module is otherwise compatible, but the mboard cannot run them any faster than the main chipset's memory controller, or on newer mboards, the memory controller on the CPU, will accept.

"Memory upgrade information

•Single-channel memory architecture
•2 x 240-pin DIMM sockets support unbuffered non-ECC 400/533 MHZ DDR2 memory modules"

It's likely that you will not benefit from the faster speed of ram modules that are faster than 533mhz.

Some ram manufacturers such as Crucial DO sometimes list faster modules than were specified, because they know the modules are otherwise compatible.


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#11
August 31, 2011 at 06:35:36

Your MB Have and supports Single-channel memory architecture
2 x 240-pin DIMM sockets support unbuffered non-ECC 400/533 MHZ DDR2 memory modules
Maximum HP/Compaq approved memory is 2 GB
so, if you add a Ram of frequency higher than 400/533 MHZ then that only gets read. This prolem i also had and when i put equal freq ram it was working fine.

SRSS


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