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Need Some Help (CPU Upgrade)

So I have a Dell Optiplex 780 (SFF)  and I was wondering, if DDR3 RAM is compatible with a new CPU for in my case a Intel Core 2 Quad Q9400 which I have read is compatible with the motherboard the Dell Optiplex 780 but the CPU only supports DDR2 RAM even though the compatibility list says it supports it.

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19 minutes ago, Vik1232 said:

So I have a Dell Optiplex 780 (SFF)  and I was wondering, if DDR3 RAM is compatible with a new CPU for in my case a Intel Core 2 Quad Q9400 which I have read is compatible with the motherboard the Dell Optiplex 780 but the CPU only supports DDR2 RAM even though the compatibility list says it supports it.

It is DDR2 my friend.

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1 minute ago, Turtle Rig said:

It is DDR2 my friend.

Not nessescarily. If the board supports the CPU but the motherboard is DDR3 then you should be able to run it with DDR3 otherwise the board wouldn’t list support. Regardless, check memory compatibility on intels website.

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Pull your current ram out and snap a picture of the labels.

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Here 

14 minutes ago, asand1 said:

Pull your current ram out and snap a picture of the labels.

20190911_211741.thumb.jpg.d2f878e1f8845be41ebb784a3ce4c1a5.jpg

 

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PC3=DDR3 and AFAIK Core 2 Quad has the memory controller on the Motherboard chipset, so you should be fine.

Black Knight-

Ryzen 5 5600, GIGABYTE B550M DS3H, 16Gb Corsair Vengeance LPX 3000mhz, Asrock RX 6800 XT Phantom Gaming,

Seasonic Focus GM 750, Samsung EVO 860 EVO SSD M.2, Intel 660p Series M.2 2280 1TB PCIe NVMe, Linux Mint 20.2 Cinnamon

 

Daughter's Rig;

MSI B450 A Pro, Ryzen 5 3600x, 16GB Corsair Vengeance LPX 3000mhz, Silicon Power A55 512GB SSD, Gigabyte RX 5700 Gaming OC, Corsair CX430

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You could even upgrade to 8GB.

Black Knight-

Ryzen 5 5600, GIGABYTE B550M DS3H, 16Gb Corsair Vengeance LPX 3000mhz, Asrock RX 6800 XT Phantom Gaming,

Seasonic Focus GM 750, Samsung EVO 860 EVO SSD M.2, Intel 660p Series M.2 2280 1TB PCIe NVMe, Linux Mint 20.2 Cinnamon

 

Daughter's Rig;

MSI B450 A Pro, Ryzen 5 3600x, 16GB Corsair Vengeance LPX 3000mhz, Silicon Power A55 512GB SSD, Gigabyte RX 5700 Gaming OC, Corsair CX430

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Just now, asand1 said:

You could even upgrade to 8GB.

thats what im doing i just got an extra 4 because the system already has 4

 

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