Cannot install third ram (computer doesn't start)

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Sepa72

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May 23, 2014
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If I add a third RAM-module to my computer, it won't start!
I have 4 sockets (DDR2).
Two red ones, two yellow ones.
Currently I have got 2 modules (2gb and 1gb) installed on same colored sockets.
But If I add another one, my computer won't boot.
I have tried around, like the 2gb on another color and 2x 1GB on same.
But nothing worked, only 2gb and 1gb on same color.
This is my mainboard:
Gigabyte Website

Thanks in advance!
 
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Sepa72

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I do not know the brand of those, I want to install.
There is only that AE-icon on it.
I found them in my old pc.
The manufacturer of my current installed modules are OCZ and Swissbit.
 
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Sepa72

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I dunno about my BIOS, I dont think that I have ever changed something about speed, voltage etc. in the BIOS.
I think they are auto, but if I install the third one, I cant even get into BIOS btw.

Edit:
Link to the module (identified by the label on it):
http://www.memoryten.com/pc/005658/DDR2-240p-PC2-5300-1GB/
 
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SystemDump

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this may have something to do with it... not sure, so sorry if wrong:

* Because of chipset limitations, do not populate both DIMM sockets of the same channel (e.g. DDRII1 and DDRII2), or populate 4 DIMM sockets with double-sided memory modules to prevent system's failure to start or incorrect detection of memory modules. Please refer to the user manual for the memory configurations table. * Because of chipset limitations, when using FSB 1333 MHz CPU with populating all DIMM sockets, memory frequency will be reduced from the original, and system instability or incorrect detection of memory module may be occur. Please refer "Memory Support List" for memory support information.
 
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Sepa72

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I know SystemDump, but I dont think this will prevent me from installing more than 2 o_O
The 1GB Module is OCZ OCZ2P800R21G and the 2GB Module is a Swissbit MEU25664D6BC2EP-30.
 
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COLGeek

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From the manual, the full explanation:

Due to chipset limitation, read the following guidelines before installing the memory in Dual Channel mode.

1. Dual Channel mode cannot be enabled if only one DDR2 memory module is installed.
2. When enabling Dual Channel mode with two or four memory modules, it is recommended that
memory of the same capacity, brand, speed, and chips be used and installed in the same
colored DDR2 sockets for optimum performance.
3. Because of chipset limitations, do not populate both DIMM sockets of the same channel
(e.g. DDRII1 and DDRII2) with double-sided memory modules to prevent system's failure to
start or incorrect detection of memory modules.

1-4-1 Dual Channel Memory Configuration
This motherboard provides four DDR2 memory sockets and supports Dual Channel
Technology. After the memory is installed, the BIOS will automatically detect the
specifications and capacity of the memory. Enabling Dual Channel memory mode
will double the original memory bandwidth.

See pages 16 and 17 in the motherboard manual:

http://download1.gigabyte.us/Files/Manual/motherboard_manual_ga-eg31mf-s2_e.pdf
 
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COLGeek

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So, 2 modules are PC2-5300 rated and the other PC2-6400. Timings of all 3 are different. Not a wonder that they don't work together.

Will the system boot with only the single "1GB 240p PC2-5300 CL5 16c 64x8 DDR2-667 2Rx8 1.8V UDIMM, Aeneon, AFB, AET760UD00-30DB97X" memory module installed?

 
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ace7580

ace7580

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lol i have this same issue only i have it with ddr3 g.skill modules bought 4x4gb sticks and my asrock pro3 z87 wont run with the 3rd slot filled,i keep getting this message - the following channel memory did not pass cpu memory test. please remove the memory then plug again channel b,yet it will let me run 3 gskill sticks with a kingston hyperx blu stick 4gb o.o
 
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COLGeek

COLGeek

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No bumping is allowed.

Understood on successful booting with the single module installed. Now, try adding the second 1GB module in the slot right next to the first one (not the matching colored slot in the second set of slots. Will it boot now?
 
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Sepa72

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Sorry for bumping.

Okay I have tried out again with several combinations.
I have found the other matching module to the new 1GB-Module, they are equivalent.
Results in short are

The 2 same modules right next to each other (color not matching but sockets are next to each other):
Computer just restarts over and over again (characteristic sounds that are coming again)
Think he stucks at the POST

The 2 same modules away from each other, not the same color slot and other slot pair:
Working (doesnt matter which module combination)

Using the above combination + 2GB module in another slot:
Same as first, reboot loop

Using 3x 1GB: same as above

The 2 same modules again but in the same color:
Continous beeping sound.

I think it only works when I plug in 1 module on the 1st set of slots and the other module on the 2nd set and in the different color slots.
This might have to do something with that what stands on the manufacturer website:

"3. Because of chipset limitations, do not populate both DIMM sockets of the same channel
(e.g. DDRII1 and DDRII2) with double-sided memory modules to prevent system's failure to
start or incorrect detection of memory modules."

What is it with single-sided and double-sided memory modules?
And also: "4 x 1.8V DDR2 DIMM sockets supporting up to 4 GB of system memory"
Does it mean that I can only have 4 GB at all? No matter if I install 2x 4 GB?
 
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COLGeek

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What is causing the problem you are having is the mismatched memory modules.

You can try this, with one of your working configurations of memory, access your BIOS and increase your memory voltage from 1.8v to 1.9v. Save and shutdown. Add the third memory module. Try starting the system again.

Some systems have a problem powering all memory when all slots are filled, this could be a similar issue.

If it doesn't work, shutdown and remove third module and reset your BIOS memory voltage setting to where it was.

Another thing to try would be a hard reset to default settings of the BIOS itself. Power the system down and disconnect all power sources (power cable, display, powered speakers). Press the power button to discharge any residual power in components. Then, remove the motherboard coin-style battery.

While the battery is out, reinstall all of your memory, making sure that the slowest of them is in the first slot. Then, replace the battery and reconnect the power sources removed earlier.

Try again. The motherboard should try to auto-negotiate the memory settings as part of setting up its default configuration.

All of this can be negated by using matched memory.
 
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ace7580

ace7580

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hey i had this same issue,so what i did was take of the cpu heat sink and popped out the cpu,and i checked the pins on the motherboard were the cpu sits,if any are bent or if your confident like i was just try to straighten them back in line best as possible ,but if there broken then its time to replace your motherboard or send it back (if you can),also check the cpu if it has pins to.-worked for me might for you too!
 
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Sepa72

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Okay I have tried that with the voltage, but it didn't do anything.
And about that bios battery thingy:
Is it risky to do that, I mean can anything happen when I do that?
And how do I remove that battery?
 
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COLGeek

COLGeek

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Look at the battery and you'll see a little tab you press, that will release the battery from the slot. There is no risk in removing it. The BIOS will revert to its default settings when this is done. You'll have to reset the clock, for example after restarting. Also, if you SATA mode is AHCI now, make sure to set that way when you power the system back up (after resetting) and enter the BIOS for the first time.
 
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Sepa72

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The BIOS will only reset the settings right?
No need to do anything else?
Just remove it and then back in, and after starting set the clock or what?
Also what do mean exactly about SATA mode?
 
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COLGeek

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When you remove the battery, the BIOS will reset to how it came from the factory. The SATA mode refers to the protocol used to communicate with SATA devices. There are 3 modes: IDE, AHCI, and RAID. Page 39 of your manual contains info regarding this setting. The default is AUTO so you likely don't need to change anything.

After restart, enter the BIOS and then set the date/time. While there, check to see if all memory is recognized.

Good luck!
 
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Sepa72

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Okay I did reset that now and I had to set the time and date.
I also did that. But before starting the first time after resetting I have inserted the module, but it was the same result: Reboot loop

I think the reason is, that every single module is double-sided.
I will get a new mainboard..
Thanks for the help anyways!
Any suggestions left?

edit:
Btw a question: Is it possible to use VRAM (gpu memory) as system memory (RAM)?
On google I only find RAM as VRAM.

another edit:
Can updates increase the max. supported memory or resolve this problem?
 
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