776mb now its 1gig????

U

UpskirtHayley

New Member
776mb now its 1gig????

I have 1gig ram. Two stick of 512mb ram. My Onboard ati radeon x1250 graphic use 256mb ram from the system ram.... so total shows 767mb when I right click my computer.

Anyhow.... I open up the case and plug out one of the rams stick and plug back in.

Now Power Up the computer... I notice the performance improvement! it feel so much smoother and faster! then I right click my computer to see if the ram reads correctly in case the ram I plug in was loose.... this is when I found out that it reads 1gig ram now!!!! how???? so is this mean my onboard graphic stop taking the 256mb from it? if so.... what if I want the graphic to take back the 256mb from it? how do I do it? and is it normal to replug/plug ram and it disable the graphic from taking the memoryfrom the system ram?





edit: title is misleading. it is supose to be "767mb now its 1gig?" not 776mb
 
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Your video card wasn't taking any memory to begin with. When you reseated the dimm it was then down fully in the slot and could be fully detected. Apparently Windows was only partially reading the dimm only making partial contact when first put in the slot.

On older boards the option was seen in the bios for seeing part of the system memory shared with the video card to assist in processing textures. You increased the typical default 64mb aperature to match the size of the card. But it isn't normal to plug and replug memory in since that was simply from having the dimm fully seated down.
 
Your video card wasn't taking any memory to begin with. When you reseated the dimm it was then down fully in the slot and could be fully detected. Apparently Windows was only partially reading the dimm only making partial contact when first put in the slot.
Click to expand...
Er....I don't think so. A DIMM that is not seated properly wont be partially detected. It will either not be detected at all or it will fail the POST test.

Did you plug the RAM back into the same slot? And is your x1250 integrated?
 
Onboard is used there. But even that shouldn't be grabbing 256mb off of the top. If all contacts with one or two just barely touching and seeing a small fraction of current then the dimm would have been underpowered and only partitially detected being in a reduced capacity.

Once reseated the dimm then saw the normal voltage levels and was then accurately read by Windows. If the onboard was taking away from the available ram you would be seeing something like 768mb for a total.
 
PC eye said:
.If the onboard was taking away from the available ram you would be seeing something like 768mb for a total.
Click to expand...

pc eye have a point. it never show 768mb for me but only 767mb. so its just the ram is not seating properly?

but.... as I study and ask around many says reason why I have 767mb when i supose to have 1gig is due to the onboard graphic takes 256mb from the systam ram.... but.... it should show 768mb... but why would it shopw 767mb? this is when pc eye theory have a point.

but but.... i thought i was sure that my computer have an onboard graphic that takes 256mb from the system ram? it is an onboard integrant shared ati radeon x1250.


note: i plug/replug the ram at the exact same slot as before.





heres the spec of the actual computer spec:

Processor: AMD Athlon(TM) 64 X2 4400+
Processor Speed: 2.2GHz
Cache Memory: 512KB + 512KB on die Level 2
System Memory (RAM): 1GB System Memory (RAM) Expandable To: 4GB
Type of Memory (RAM): PC2-5300 DDR2
Hard Drive Type: SATA (7200 rpm)
Hard Drive Size: 320GB
Graphics: ATI Radeon X1250
Video Memory: Up to 256MB (shared)
Personal Video Recorder (PVR): No
TV Tuner: No
MPEG: Yes
Audio: High-definition (8-speaker support)
Modem: 56 Kbps**Capable of receiving 56 Kbps downloads. However, current regulations limit download speed to 53 Kbps.
Network Card: Built-in 10/100/1000 Gigabit Ethernet LAN (RJ-45 connector)
Wireless Networking: None
Recordable DVD Drive: Yes, double-layer DVDRW/CD-RW
Digital Media Reader or Slots: Yes, digital media card reader D
iskette Drive: No
Total Expansion Bays: External: 2 (3.5"), 2 (5.25") Internal: 4 (3.5")
Available Expansion Bays: External: 1 (3.5"), 1 (5.25") Internal: 3 (3.5")
Total Expansion Slots: 2 PCI, 1 PCI-E x1, 1 PCI-E x16, 4 DDR2
Available Expansion Slots: 1 PCI, 1 PCI-E x1, 1PCI-E x16, 2 DDR2 USB 2.0 Ports: 8 (4 front, 4 rear) IEEE 1394 Ports: 1 (rear)
S-Video Outputs: None
Additional Audio/Video Connectors: 1 HDMI, 6 audio, 1 SPDIF2
Serial Ports: None
Parallel Ports: 1
Game Ports: None
 
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With one 512 knocked out you wouldn't even be seeing over 512 to begin with yet you were seeing 767mb. If you subtract 512 from 1024 you still end up with 512mb. Somehow you were still seeing limited activity from the dimm before reseating it likely from the poor contact from being slightly raised in the slot.

You would think that with now seeing the full 1gb recognised that 768mb would be the end result due to 256mb being shared with the onboard video. That is the common thought like that seen with...

qbar_q.gif
Why does your PCs RAM appear as 192mb when you bought it with 256mb?

In: Computer Hardware

Answer

When there is a difference like that in the RAM count, it usually means that you have a "shared" ram with a 64MB on-board video card. That's one of the reasons why it's good to load the computer with as much RAM as you can afford; it increases the number of applications that you can run concurrently without being affected by the hardware needs.


http://wiki.answers.com/Q/Why_does_your_PCs_RAM_appear_as_192mb_when_you_bought_it_with_256mb

Shared memory doesn't quite mean any total amount taken away but shared. Windows is reporting 1gb while not indicating how much of that is being shared and not available as ram.
 
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PC eye said:
With one 512 knocked out you wouldn't even be seeing over 512 to begin with yet you were seeing 767mb. If you subtract 512 from 1024 you still end up with 512mb. Somehow you were still seeing limited activity from the dimm before reseating it likely from the poor contact from being slightly raised in the slot.

You would think that with now seeing the full 1gb recognised that 768mb would be the end result due to 256mb being shared with the onboard video. That is the common thought like that seen with...

qbar_q.gif
Why does your PCs RAM appear as 192mb when you bought it with 256mb?

In: Computer Hardware

Answer

When there is a difference like that in the RAM count, it usually means that you have a "shared" ram with a 64MB on-board video card. That's one of the reasons why it's good to load the computer with as much RAM as you can afford; it increases the number of applications that you can run concurrently without being affected by the hardware needs.


http://wiki.answers.com/Q/Why_does_your_PCs_RAM_appear_as_192mb_when_you_bought_it_with_256mb

Shared memory doesn't quite mean any total amount taken away but shared. Windows is reporting 1gb while not indicating how much of that is being shared and not available as ram.
Click to expand...

hmmm.... not quite understand yet. english is not my first language. so.... umm.....

1: why is it reads 767mb at the first place?

2: when I replug/plug.. why it reads 1gig now?
 
Before you reseated the dimm Windows reported 767mb installed. Later after reseating the dimm and then seeing a fully functioning dimm Windows then reported the 1gb total. With the dimm having been raised up in the slot it wasn't seeing the proper contact but enough to allow some voltage to go through in order for Windows to see something there.

It's best described like a volume control knob where you can turn the voltage down not the volume. The contacts on the dimm were still touching the contacts in the slot but not enough to allow the correct voltage for it to work properly.
 
UpskirtHayley said:
hmmm.... not quite understand yet. english is not my first language. so.... umm.....

1: why is it reads 767mb at the first place?

2: when I replug/plug.. why it reads 1gig now?
Click to expand...

it might have been plugged in badly, now it is better so the computer will work faster. :D
 
PC eye said:
Before you reseated the dimm Windows reported 767mb installed. Later after reseating the dimm and then seeing a fully functioning dimm Windows then reported the 1gb total. With the dimm having been raised up in the slot it wasn't seeing the proper contact but enough to allow some voltage to go through in order for Windows to see something there.

It's best described like a volume control knob where you can turn the voltage down not the volume. The contacts on the dimm were still touching the contacts in the slot but not enough to allow the correct voltage for it to work properly.
Click to expand...

ahh ok so the problem is just the dimm is not seated properly from the beginning? what about the story about the integrant graphic takes 256mb from the system ram? it never did? and not supose to?





lovely? said:
it might have been plugged in badly, now it is better so the computer will work faster. :D
Click to expand...
I didnt care when I pull it out... so I didnt notice if its loose or not.... kindda regret..... should of check before pulling out.
 
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wait haley, did u have two sticks of RAM, and then take a stick out, and u SEE more RAM than usual?
Thats some paranormal sheeznits
 
Vizy93 said:
wait haley, did u have two sticks of RAM, and then take a stick out, and u SEE more RAM than usual?
Thats some paranormal sheeznits
Click to expand...

correct.. well kindda. i have 2 stick of 512mb ram. from the beginning it reads 767mb. when i took out one of the ram out and plug it back in... the system reads 1gig. at first i thought why i am getting 767mb is due to the integrant graphic that takes 256mb from the system ram.
 
The problem seen there isn't actually that uncomon. Various things will be seen with expansion cards as well as memory until it gets reseated and then suddenly works like it should. At least you now know the memory is good. :D
 
pc eye have a point. it never show 768mb for me but only 767mb. so its just the ram is not seating properly?
Click to expand...
I highly doubt it was seated improperly and working. Here's why:

For the RAM to be not seated properly, one side would have be out of contact as it's not possible for the middle to be out of contact while the sides are in contact (although that will almost assuredly fail posting as well). The pin assignments for the first few pins on either end of a DDR2 DIMM are as follows:

1 VREF 121 VSS
2 VSS 122 DQ4
3 DQ0 123 DQ5
.........
.........
.........
118 VSS 238 VDDSPD
119 SDA 239 SA0
120 SCL 240 SA1

Pin Legend:
DQ0 to DQ63 Data input/output
SCL Clock input for SPD
SDA Data input/output for SPD
SA0 to SA2 Serial address input
VDDSPD Power for serial EEPROM
VREF Input reference voltage
VSS Ground

The pins at either end are used for stuff so it should cause problems beyond partially detecting the RAM amount. Going 1 pin pair further in on either side is more data input lines and groundings.

I think it's far more likely that something was reset in the BIOS while you were messing with the RAM and that's the cause.
 
Cromewell said:
I highly doubt it was seated improperly and working. Here's why:

For the RAM to be not seated properly, one side would have be out of contact as it's not possible for the middle to be out of contact while the sides are in contact (although that will almost assuredly fail posting as well). The pin assignments for the first few pins on either end of a DDR2 DIMM are as follows:

1 VREF 121 VSS
2 VSS 122 DQ4
3 DQ0 123 DQ5
.........
.........
.........
118 VSS 238 VDDSPD
119 SDA 239 SA0
120 SCL 240 SA1

Pin Legend:
DQ0 to DQ63 Data input/output
SCL Clock input for SPD
SDA Data input/output for SPD
SA0 to SA2 Serial address input
VDDSPD Power for serial EEPROM
VREF Input reference voltage
VSS Ground

The pins at either end are used for stuff so it should cause problems beyond partially detecting the RAM amount. Going 1 pin pair further in on either side is more data input lines and groundings.

I think it's far more likely that something was reset in the BIOS while you were messing with the RAM and that's the cause.
Click to expand...

so only the middle pins have to plugged in for it to past POST?

just curious. and also, when u posted up the pin assignments , is ddr2 just two of those?
 
Cromewell said:
I highly doubt it was seated improperly and working. Here's why:

For the RAM to be not seated properly, one side would have be out of contact as it's not possible for the middle to be out of contact while the sides are in contact (although that will almost assuredly fail posting as well). The pin assignments for the first few pins on either end of a DDR2 DIMM are as follows:

1 VREF 121 VSS
2 VSS 122 DQ4
3 DQ0 123 DQ5
.........
.........
.........
118 VSS 238 VDDSPD
119 SDA 239 SA0
120 SCL 240 SA1

Pin Legend:
DQ0 to DQ63 Data input/output
SCL Clock input for SPD
SDA Data input/output for SPD
SA0 to SA2 Serial address input
VDDSPD Power for serial EEPROM
VREF Input reference voltage
VSS Ground

The pins at either end are used for stuff so it should cause problems beyond partially detecting the RAM amount. Going 1 pin pair further in on either side is more data input lines and groundings.

I think it's far more likely that something was reset in the BIOS while you were messing with the RAM and that's the cause.
Click to expand...

hmmmm...... what if its really that? is resetting bios bad? any harm? any side effect? and what cause it to read 767mb at the beginning?

so the story about integrant graphic took 256mb from system ram is obsolete? it never did?
 
so the story about integrant graphic took 256mb from system ram is obsolete? it never did?
Click to expand...
I'm saying maybe that's what got reset/changed. In any event, if everything is working, there's no harm. If you notice your video performance drop a bit this may be the cause but I don't know how much RAM an x1250 can effectively use so there may be little to no difference.
 
For some reason the dimm was being seen as a 256mb not a 512mb dimm. The most likely reason for seeing 767 not 768 is what was taken by the onboard video or simply how the dimm was being seen. Once reseated Windows then saw a fully working device and reported the 1gb total.

A raised dimm doesn't always mean one end or the other being lifted but simply not seated down fully while still sitting evenly in the slot. The reason Cromewiell asked earlier if you had reseated the memory in a different slot was to see if the first was bad where the full capacity of the dimm wasn't being seen.

At least there's one thing you know for sure. You won't be tossing a dimm thinking it was defective memory anytime soon. :D
 
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