Ram size mixture

johny dolan · 24 Jul 2009 at 13:10

I run four one gig sticks of corsair 8500 and one stick has died.Ocuk dont stock the one gig sticks anymore so im about to order the 2 gig sticks. http://www.overclockers.co.uk/showproduct.php?prodid=MY-148-CS&groupid=701&catid=8&subcat=817 what id like to ask is can i install this ram and als use two of my one gig sticks to give me 6 gig.Will this work ok.Cheers in advance.

Kennysevenfold · 24 Jul 2009 at 15:28

What is the exact model of the ram you already have.?

It could work.

Happy · 24 Jul 2009 at 15:34

I currently have something similar in my DFI X38

2x1GB OCZ Platinum 4-4-4-15 800Mhz
2x2GB Buffalo Firestixx 5-5-5-15 1066Mhz

They are happily running together at 5-5-5-15 860Mhz

johny dolan · 24 Jul 2009 at 15:37

Kennysevenfold said:
What is the exact model of the ram you already have.?

It could work.

My ram is 4 sticks of 1 gig corsair cm2x1024-8500c5d.Ive ordered the new ram so it either will work or worse case is i have spare ram hehe.The only difference is the amount of the ram on the sticks as far as i can tell.

Happy · 24 Jul 2009 at 15:44

I don't see why it wouldn't work.

Kennysevenfold · 24 Jul 2009 at 15:53

Ahh, in that cause it shold work mate

hope it goes well when you get them

johny dolan · 24 Jul 2009 at 15:56

Cheers guys.

johny dolan · 25 Jul 2009 at 09:06

Update new ram arrived at 7.50 am sat hehe.The mixture of ram sizes didn't work so i had to use just the new sticks.I tried it in different slots 1 gig then 2 gig stick ect then 2 gig 2 gig and then both 1 gig sticks and it wouldn't post either way.At Least im back to having 4 gig and i have some spares.

Happy · 25 Jul 2009 at 15:10

Did you alter any voltages, since the NB might have needed more volts?

Before writing it off completely I would try this if you haven't already.

Place the set of ram in slots 1&3 boot into the BIOS and change the ram to be 800MHz @ 5-5-5-15-2T @ 2.0/2.1V (can't remember what the max volts for the memory are, since when running with full dimms sometimes the modules need a bit more juice). I would then up the NB two or three notches to rule out that.

When trying this put your CPU overclock back to stock (if it's overclocked), since that also may be interfering with it booting, sine when having all the dimms full in limits your maximum overclock in many cases.

Post back with the results

johny dolan · 25 Jul 2009 at 15:55

It ran fine for 2 years with 4 sticks of the 1 gig ram.One stick died and ocuk dont stock the 1 gig sticks now so i ordered the 2 gig sticks.The new ram is the same speed and timings all that is different is the amount of ram on the sticks.Im fine with 4 gig again my vista does seem smoother now its back with 4 gig.Ill build another rig with the spare ram.I have most things doubled up and was only short of ram and psu so no worries.Thanks for your input much appreciated guys.Ps the pc is all stock clocks.