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Is it ok if I use 3 sticks of ram ?

Go to solution Solved by igormp,
25 minutes ago, prasanth_1991 said:

I have i7 4790k & my motherboard supports DDR3 1333 and 1600 mhz.

 

Right now I have 2 x 4gb 1333 mhz ram. I'm planning to upgrade another 8 gb but I really don't want to add 2 x 4 gb ram since i new few slots for features upgrad. Like 2 x 4gb = 8gb, 1 x 8 gb so total 16 gb ram. Since 1 slot left over for features upgrade of another 8 gb ram.

 

My question is, how bad is it to use 3 sticks ram. Right now I have 2 x 1333 4 gb ram, is that ok if I add 1 x 8 gb 1333 or 1600 mhz ? 

Yes, it's ok, your RAM will work in flex mode, as in: your 2x 4gb will be in dual channel, while the single stick will be in single channel, so accessing stuff from your 8gb stick will be a bit slower.

 

Remember to put the stick in the right slots of your mobo.

I have i7 4790k & my motherboard supports DDR3 1333 and 1600 mhz.

 

Right now I have 2 x 4gb 1333 mhz ram. I'm planning to upgrade another 8 gb but I really don't want to add 2 x 4 gb ram since i new few slots for features upgrad. Like 2 x 4gb = 8gb, 1 x 8 gb so total 16 gb ram. Since 1 slot left over for features upgrade of another 8 gb ram.

 

My question is, how bad is it to use 3 sticks ram. Right now I have 2 x 1333 4 gb ram, is that ok if I add 1 x 8 gb 1333 or 1600 mhz ? 

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2 minutes ago, prasanth_1991 said:

I have i7 4790k & my motherboard supports DDR3 1333 and 1600 mhz.

 

Right now I have 2 x 4gb 1333 mhz ram. I'm planning to upgrade another 8 gb but I really don't want to add 2 x 4 gb ram since i new few slots for features upgrad. Like 2 x 4gb = 8gb, 1 x 8 gb so total 16 gb ram. Since 1 slot left over for features upgrade of another 8 gb ram.

 

My question is, how bad is it to use 3 sticks ram. Right now I have 2 x 1333 4 gb ram, is that ok if I add 1 x 8 gb 1333 or 1600 mhz ? 

You can but you shouldn't. You either need:

a) two modules in odd/even configuration for dual channel, of the same module speed brand and production date

b) four modules in of the same module speed, brand and production date.

 

If you add a third module, it will drop to single channel. Likewise, if you mix single ranked and dual ranked modules. (module with chips on one or both sides)

 

Buy them in pairs if possible, as the performance difference is significant enough to be noticed.

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25 minutes ago, prasanth_1991 said:

I have i7 4790k & my motherboard supports DDR3 1333 and 1600 mhz.

 

Right now I have 2 x 4gb 1333 mhz ram. I'm planning to upgrade another 8 gb but I really don't want to add 2 x 4 gb ram since i new few slots for features upgrad. Like 2 x 4gb = 8gb, 1 x 8 gb so total 16 gb ram. Since 1 slot left over for features upgrade of another 8 gb ram.

 

My question is, how bad is it to use 3 sticks ram. Right now I have 2 x 1333 4 gb ram, is that ok if I add 1 x 8 gb 1333 or 1600 mhz ? 

Yes, it's ok, your RAM will work in flex mode, as in: your 2x 4gb will be in dual channel, while the single stick will be in single channel, so accessing stuff from your 8gb stick will be a bit slower.

 

Remember to put the stick in the right slots of your mobo.

FX6300 @ 4.2GHz | Gigabyte GA-78LMT-USB3 R2 | Hyper 212x | 3x 8GB + 1x 4GB @ 1600MHz | Gigabyte 2060 Super | Corsair CX650M | LG 43UK6520PSA
ASUS X550LN | i5 4210u | 12GB
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It won't always drop in single channel.

Sometimes it works in "hybrid single/dualchannel"  ... the amount available on both channels will work in dual chanel ... ex 2 x 4 GB on first channel, 1 x 4 GB on second channel - you'll have 8 GB (4+4) in dual channel, the rest of 4 GB will be slower, in single channel.

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