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My new RAM

by DatThor / September 17, 2013 3:20 AM PDT

Hello there,

I got some new RAM.
Corsair XMS 2 Xtreame performance DDR2 memory on the front side.
Corsair CM2X1024-6400 5-5-5-12 1.9 V ver5.2 800 Mhz 1024 MB 748047 08081435 XMS2-6400 on the backside.
I also have these one
2xKingston 1GB 240-Pin DDR2
DDR2 667 (PC2 5300)
Cas Latency 5
Voltage 1.8V
My mother board is an ABIT KN9 Ultra.
Website is telling this:
Four 240-pin DIMM sockets
Supports Dual channel DDR2 800 ECC/non-ECC,
Un-buffered memory
Supports maximum memory capacity up to 8GB

So to make it clear after this technical information,
I have 2x those kingstons and they work fine.
But i wont to add those corsair. However when i do it, i get a lot of blue screens.
I tried to replaced them, like 1-3 for kingston and 2-4 for crosair, and a lot of other combo's. But it seems not to work, or i get like 2.5,3,3.5 and sometimes 4 GB.
But they give bluescreens,
memory management and some others....
I hope you got some ideas what i should do, do they even work together? Pls help me Happy
Enough information? Otherwise tell me
Thank you, Thorwin

PS: Are links allowed?

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As you found out.
by R. Proffitt Forum moderator / September 17, 2013 3:26 AM PDT
In reply to: My new RAM

When we add more ram there are a lot of parameters to check. calls out 1.9V and your old RAM is 1.8V which is usually close enough but as in all prior discussions you either replace them all of the same make/model or use CRUCIAL.COM and you still get to keep them all the same make and model.

Mixing memory sizes, makes is more fun than herding cats.

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Other Ram
by DatThor / September 17, 2013 5:15 AM PDT
In reply to: As you found out.

Well ty for your quick reaction.
I have this old 512MB ram laying here.
It's a Samsung KR 0427, 512 MB 1Rx8
Now i have this,
Slot 1: The Kingston
Slot 2: The Corair
Slot 3: The Kingston again
Slot 4: The Samsung one.
Now i have 3.5 GB ram and it's working fine,
I wonder why this works, but 2 corairs not.
And it put it on 1.9 V in my bios. No bluescreens since i did that combo.

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damage ram
by merkat491 / September 17, 2013 6:56 AM PDT
In reply to: Other Ram

Did you insert into Slot2 alternately Corair memory? Mayby one of memory is damage.
Besides, are You testing now performance?

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Your RAM may be running but at the speed of the
by VAPCMD / September 17, 2013 10:26 AM PDT
In reply to: Other Ram

slowest DIMM in the system (the Samsung) vice the fastest.

If you read your MB manual or look nearly anywhere on the WEB, system manufacturers and MB manufacturers recommend that all you RAM be the same speed, same capacity from the same RAM mfg. You don't want to mix RAM speeds, RAM capacities or RAM mfgs....this helps ensure the system works reliably at maximum design speed.

What operating system are you using and what version is it...32bit or 64bit ? What do you use the PC for ?


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3 different RAM cards
by DatThor / September 17, 2013 9:05 PM PDT

Ty for your responds,
Well i"m using my PC to game, i have a laptop apart for work.
This PC got Windows 7 Ultimate 64 bit.
And i'm using the corair with the settings of the first Post.
You say that ram should have the same speed.
But now i'm using 3 different RAM cards and they work fine.
Then i'm still not really getting why 2 corsairs and 2 kingstons aren't working.
I will try to switch the corsair and see if the other one is broken.
Have a nice day

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by DatThor / September 17, 2013 10:25 PM PDT
In reply to: 3 different RAM cards

Well I think i gone sell the corsairs, how much would it get me?
I'm thinking about 20 euros. BTW: The Samsungs, how much are those worth?
With that money i would try go get other 2x1 GB that would work.
Any not to expensive but that would work. But know i wonne be sure it works.
So any ideas what RAM i should take?
PS:If you know a way to get the corsair to work, pls tell me.

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Re RAM, check out the link I posted in an earlier
by VAPCMD / September 18, 2013 9:53 AM PDT
In reply to: Sell



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Working but all the RAM is running at the speed of
by VAPCMD / September 18, 2013 9:52 AM PDT
In reply to: 3 different RAM cards

slowest RAM in the system. With all of your RAM running at the speed of the slowest degrades performance of the entire system.

Bottom line, you should have 4GBs if not 8GBs of RAM and a good video card (GPU) for decent gaming performance. Otherwise slow is how you'll go.


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by DatThor / September 19, 2013 2:43 AM PDT

2x Kingstons are 677 MHz
2x Coirsair are 800 MHz
2x Samsung are 533 MHZ
So i wonder what i should do then.
I'm able to sell some if i need to. But which should i buy then?
I don't wont to go over 20-30 euros. And in total i would like to have 4 GB.

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We've given you the info you need to make the
by VAPCMD / September 21, 2013 1:42 AM PDT
In reply to: Speed

decision...but the decision is up to you.

Optimal RAM config is a sufficient quantity of RAM from the same mfg, the same speed, same same same ....otherwise you risk decreased reliability, decreased speed. You want to maximize performance and reliability .... mixing brands, speeds and capacities of RAM can adversely affect both reliability and performance.....who wants that ??


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by James Denison / September 21, 2013 3:27 PM PDT
In reply to: Speed

"Memory is designed to be backward-compatible, so generally speaking, you can safely add faster memory to a computer that was designed to run slower memory. However, your system will operate at the speed of the slowest memory module."

Set the RAM speed manually (not SPD) to 667 and leave at 1.9V with 2 Kingston and 2Corsairs in the slots.
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by DatThor / September 22, 2013 1:44 AM PDT
In reply to: 667

Well i did that and i still have bluescreens....
Any other ideas?

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There can be other factors here.
by R. Proffitt Forum moderator / September 22, 2013 1:53 AM PDT
In reply to: Nope

But all these posts and I can't tell what we are working on.

It could be the old mix different memory sticks issue or it could be the old heat sink compound or out of date motherboard bios but as it stands, without details I won't guess.

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PS. "Enhance compatibility with certain memories."
by R. Proffitt Forum moderator / September 22, 2013 2:09 AM PDT

Found on the BIOS update page.

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What i wont
by DatThor / September 22, 2013 2:17 AM PDT

I'm trying to find a way to get the crosairs and the kingstons work so i have 4GB of Ram.
If that doesn't work i'l buy some other ram.
But what information do you need then?

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Not much.
by R. Proffitt Forum moderator / September 22, 2013 2:18 AM PDT
In reply to: What i wont

is the BIOS current?

If no combo works then you have done what you can.

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by DatThor / September 22, 2013 4:05 AM PDT
In reply to: Not much.

My current bios is Phoenix Technologies, LTD 6.00 PG, 19/11/2006(as msinfo32 say)
I'm not sure if that is the lastest version of my motherboard. When i was looking that up i got a lot of sites that doesn't seems to be trusted at all.

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Refer to Bob Proffitt's post
by itsdigger / September 22, 2013 1:57 AM PDT
In reply to: Nope

you seem to want to make a silk pursr out of a sows ear. Purchase the proper matching RAM and be done with it. In the mean time run with just the original.

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One memory stick at a time
by James Denison / September 22, 2013 4:36 AM PDT
In reply to: Nope

download the above and test each memory stick, one at a time. If you get bad readings on one, take a picture with a camera if it's still under warranty, get RMA and send that one back for a replacement.
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Look at the BIOS in this link.
by R. Proffitt Forum moderator / September 22, 2013 4:37 AM PDT
In reply to: My new RAM
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BIOS update might work but could kill the system if
by VAPCMD / September 22, 2013 8:03 AM PDT

not done right.

Other option, sell some or all the existing and replace as suggested previously suggested.


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This is why
by R. Proffitt Forum moderator / September 22, 2013 8:05 AM PDT

This is why most folk just get more of the same (working) RAM.

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by DatThor / September 23, 2013 2:46 AM PDT

Awkard, i did some more reseach about updating and i found this:
Then it's saying this: SystemBiosDate: 11/19/07
What should be the last bios update. I will check memtest86.
I thinking about buying 2 more crosairs of the same type.
Those 4 should work right?
Ty for your active responds!

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Why not look at the BIOS boot screen?
by R. Proffitt Forum moderator / September 23, 2013 2:49 AM PDT
In reply to: Bios

Windows is not known to get this right. You can try BELARC ADVISOR's report too but if a pair or sticks work then 2 pairs of same should be fine HOWEVER there have been exceptions in the past when the motherboard chipset ran out of chip select lines and well, that's a very deep discussion. It's also why many folk just head to crucial.

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Thank You
by DatThor / September 24, 2013 2:37 AM PDT

Well i'm sick of it, they just don't work out together.
So I gone buy 2 more crosairs(the same) and they should work.
But I wont to thank you all for this help, it's not always easy but you did what you could do.
Have a nice day!

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(NT) Understand...let us know how it works out.
by VAPCMD / September 24, 2013 10:29 AM PDT
In reply to: Thank You
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