2x2GB ram shows up as 2x1GB ram

Dukeofjamming · Jun 8, 2013

I currently have 4GB (2x2GB) of DDR2 ram installed in my system however it only shows 2GB (2x1GB) is installed in bios and cpu-z.
Ram is clocked at 400mhz but because it is DDR2 I know its is actually performing at 800mhz (the speed it was sold at).
My motherboard is a gigabyte GA-MA770-UD3 that is capable of running 16GB (4x4GB) of ram i have a AMD Phenom II X4 965.

I previously had this ram (Patriot memory PDC22G6400LLK) with another 2GB (2x1GB OCZ PNOCZ2N800SR2GK) but have now removed and I believe when it was mixed with this ram the motherboard only used 1GB on each 2GB card and now when they are on their own the are still using 1GB on each card not 2GB like it should be and totaling up to 4GB (2x2GB).

All help is appriciated,

Benjamin

mbarnes86 · Jun 8, 2013

Hi

You need to read the motherboard manual (or website) for supported ram types
and which 2 of 4 DIMM slots to use

Motherboard may only accept memory type available when chipset released
(or be board revision or BIOS version dependant)

number of memory chips on DIMM can be important
modern DIMMs have larger capacity memory chips but fewer of them which can cause problems in older models

look at crucial web site for guidance on suitable RAM specification

http://www.crucial.com/store/listparts.aspx?model=GA-MA770-UD3%20%28rev.%201.0%29&Cat=RAM

regards
Mike Barnes

Tradesman1 · Jun 8, 2013

Make sure you have the lateest BIOS, do a hard reset and try in slots 1-3 both the mobo and the CPU should be able to carry both the new sticks..if still problems let us know

Dukeofjamming · Jun 8, 2013

I have checked and my ram cards are in slots 1 and 2 and they are supported by my motherboard according to manual and crucial.
I am not sure how to test how many chips are in each stick of ram, could you advise me further on this?
I do not understand what you mean by hard reset and isn't BIOS flashing risky? By putting ram in slots 1-3 do you mean put both my ram cards in those 3 slots in all possible configurations?

Benjamin

Tradesman1 · Jun 8, 2013

Generally flashing a BIOS today is no big deal, just follow the directions from the manufacturer. A hard reset is, turning off the power, unplugging it, and resetting the CMOS via the jumper on your mobo, see your manual for instructions. On your mobo, if I remember right slots 1,2 from the CPU are Blue, 3-4 are white, would like to try in 1-3 to see if it may be a MC thing or a mobo hardware issue

Dukeofjamming · Jun 11, 2013

Would having DUALBIOS make the BIOS flash any safer?
Do you mean slots 1 and 3 with 2 sticks of 2GB RAM in each?

Tradesman1 · Jun 11, 2013

What's the model # of the set of new sticks

Dukeofjamming · Jun 11, 2013

I have put them at the top of my thread the ones that were only showing up as 1GB each
Patriot memory PDC22G6400LLK
400mhz clock 800mhz actual speed.
2GB ram
DDR2

Tradesman1 · Jun 11, 2013

That's why I asked, that model # is a 2x1GB set - sort of grey, with Patriot written on the heatsink, see it here:

http://www.newegg.com/Product/Product.aspx?Item=N82E16820220144

Dukeofjamming · Jun 11, 2013

OK thanks because yes on the label is said 2x2GB set so we assumed it was correct as that was written on the stick however it seems that someone took the label of another stick or something.
Thanks for looking into this.
I have now reinstalled all 4 gigs and am hopefully snapping up 2 pairs of 2GB ram:

http://www.ebay.co.uk/itm/Corsair-TWIN2X40968500C5-4-GB-DDR2-RAM-1066-MHz-DIMM-240-pin-Memory-/321137805392?pt=UK_Computing_ComputerComponents_MemoryRAM_JN&hash=item4ac54e0850

http://www.ebay.co.uk/itm/Corsair-TWIN2X40968500C5-4-GB-DDR2-RAM-1066-MHz-DIMM-240-pin-Memory-/321137800216?pt=UK_Computing_ComputerComponents_MemoryRAM_JN&hash=item4ac54df418

I looked for these earliar in the week if it became apparant that we couldent fix the supposed "problem".

What do you think of them?

As long as they stay under £80 i'm gonna try and get them.

Tradesman1 · Jun 11, 2013

same sets, 1 is .50 less

Dukeofjamming · Jun 11, 2013

It doesn't really matter that i didn't get what ram they said it was as i got one set with a dual core, before upgrading to my quad core , cheap off ebay and the same with my current Mobo.

Dukeofjamming · Jun 11, 2013

Yes so they are 2 sets that together will make 8GB of ram so if I can, I will get them.

Tradesman1 · Jun 11, 2013

Can get tricked out there, though with PC parts it's not always intentional, some folks take older rigs in as trades on new builds, (I do), I keep parts that are worthwhile and use for upgrades, others sell the parts off

Dukeofjamming · Jun 11, 2013

Yep this person selling them says he picked them out of his old pc because he got an upgrade.
If i get them the good thing will be that they are 2 matched ram cards that won't conflict.

Tradesman1 · Jun 11, 2013

Yep, keep us updated

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