Soldato
Adjusted the timings to 4-4-4-12 and no luck yet. Will try 5-5-5-15 now.
Installed Memory 3.00GB (2.00 GB Usable)
- Thread starter Infamous
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Soldato
I just looked at the BIOS on my Asus board and it so much easier.
Shouldn't need to change voltage if you are using the voltage from the sticker on the RAM.
Might be worth under clocking the RAM to 533, and setting looser timings 5-5-5-15 to test with.
Shouldn't need to change voltage if you are using the voltage from the sticker on the RAM.
Might be worth under clocking the RAM to 533, and setting looser timings 5-5-5-15 to test with.
Soldato
Hey,
Currently running on 1GB fine with no problems. Trying to add second stick of the same RAM and its not posting.
I've noticed the timings on the new and old RAM are slightly different, as are the voltages ...
2.10V - 4-4-4-12 , 800mhz 6400C4 (Old)
1.90V 5-5-5-18, 800Mhz (New)
Both are Corsair XMS2 but slightly different versions the older pair being 2.1 and the new stick being 8.2. Wonder if its conflicting with what timings it wants and its causing one of the sticks to not be used?
Currently running on 1GB fine with no problems. Trying to add second stick of the same RAM and its not posting.
I've noticed the timings on the new and old RAM are slightly different, as are the voltages ...
2.10V - 4-4-4-12 , 800mhz 6400C4 (Old)
1.90V 5-5-5-18, 800Mhz (New)
Both are Corsair XMS2 but slightly different versions the older pair being 2.1 and the new stick being 8.2. Wonder if its conflicting with what timings it wants and its causing one of the sticks to not be used?
Soldato
Yeah, could be that.
You could try 2.00V - 5-5-5-18
With all the sticks in
You could try 2.00V - 5-5-5-18
With all the sticks in
Soldato
Thanks I'll try that now. Reason I think that is because when you put in the two identical sticks it boots fine, but as soon as you introduce the third stick it won't boot.
So obviously there's a conflict between the RAM. I bought the exact same type of RAM bar it being a newer version to stop this from happening!
So obviously there's a conflict between the RAM. I bought the exact same type of RAM bar it being a newer version to stop this from happening!
Soldato
Just tried the above settings, boots fine but still the same issue when in Windows 
Soldato
Is your BIOS up to date?
Soldato
No, I've looked but Abit support seems to have dropped off the map. I had the flashtool for it, but I can't find an up to date BIOS file anywhere
Soldato
http://drivers.softpedia.com/get/BIOS/Abit/Abit-Fatal1ty-AN9-32X-Bios-18.shtml
BIOS 18, don't know if that is the latest one
BIOS 18, don't know if that is the latest one
Soldato
Soldato
Soldato
Uninstalled the program earlier because I did'nt think I needed it, and now I can't find it lol!
Soldato
Just posted my problems on the Corsair website. I'm convinced its a RAM Timing issue, but have no idea how to fix it!
Associate
sounds like you are trying to mix this
http://www.corsair.com/_datasheets/TWIN2X2048-6400C4.pdf
and this
http://www.corsair.com/_datasheets/CM2X1024-6400.pdf
It's technically not the same ram since the *c4 can operate at 4-4-4-12@800mhz, whereas the standard one can only run at JEDEC standard (aka 5-5-5-18)
Definatly worth installing 1gb of 2.1v and one stick of 1.9v. If it detects 2gb, then the ram compatibility isnt an issue and lies elsewhere (What graphics card do you have btw?)
http://www.corsair.com/_datasheets/TWIN2X2048-6400C4.pdf
and this
http://www.corsair.com/_datasheets/CM2X1024-6400.pdf
It's technically not the same ram since the *c4 can operate at 4-4-4-12@800mhz, whereas the standard one can only run at JEDEC standard (aka 5-5-5-18)
Definatly worth installing 1gb of 2.1v and one stick of 1.9v. If it detects 2gb, then the ram compatibility isnt an issue and lies elsewhere (What graphics card do you have btw?)
Soldato
Hi sturmtruppe,
I use a 4870 Sapphire 512MB Graphics card, why you ask? I'll try your suggestion quickly now, but if I recall correctly my PC would'nt boot when I tried this. But I'll give it a go now
Soldato
Ok, 1GB of 6400C4 and one stick of 6400 are working fine together. And Windows detects 2GB total fine? So surely this means the RAM is compatible?
I'd like to add that they are in the 1 and 3 DIMM slots if this would make any difference? I have 4 in total.
I'd like to add that they are in the 1 and 3 DIMM slots if this would make any difference? I have 4 in total.
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Soldato
Looking at the motherboard manual page 2-11 on that .pdf, seems you should try with the 2 old sticks in slots 1+2 and the new in slot 3
Soldato
Just tried that mate, would'nt boot at first so had to reset the CMOS and it booted up fine after a few attempts. But still only recognises 2GB
Soldato
http://forum.corsair.com/forums/showthread.php?p=471798#post471798
Been posting on Corsairs Forums for a solution and from what I gather, I was basically lucky it worked in the first place and that it shouldn't have worked and the only guaranteed way to get it to work is to get matching pairs of RAM to begin with. Although I'm not sure what to make of this?
Been posting on Corsairs Forums for a solution and from what I gather, I was basically lucky it worked in the first place and that it shouldn't have worked and the only guaranteed way to get it to work is to get matching pairs of RAM to begin with. Although I'm not sure what to make of this?
Soldato
Tested it again, and 1Gb of old works perfect with 1GB of new no problem so compatibility can't be an issue? It only fails to boot when I add the 2nd older stick ???