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800mhz ram running at 533mhz?

Hi i have optiplex 620, pentium d 915 cpu, 4x1 hynix 800mhz ram, but windows task manager says that it runs at 533mhz. I made sure all 4 rams are 800mhz but it still runs at 533. What's wrong?

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1 minute ago, columbusohio said:

Hi i have optiplex 620, pentium d 915 cpu, 4x1 hynix 800mhz ram, but windows task manager says that it runs at 533mhz. I made sure all 4 rams are 800mhz but it still runs at 533. What's wrong?

 

Have you checked your memory speed in the BIOS?

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9 minutes ago, BlueChinchillaEatingDorito said:

Have you checked your memory speed in the BIOS?

check the bios and the bios says that it's 533mhz. But the product is 800mhz for real! https://www.skhynix.com/eolproducts.view.do?pronm=DDR2+SDRAM&srnm=HYMP112U64CP8&rk=08&rc=module my rams are s6, which clearly states that these are 800mhz sticks

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Did the memory run at any point at 800 Mhz?

 

if the system is Dell Optiplex GX620, which has a motherboard with the 945G chipset then the maximum official memory frequency supported is 667 Mhz:

 

See https://ark.intel.com/products/27720/Intel-82945G-Memory-Controller

or see page 24 here  https://www.intel.com/Assets/PDF/datasheet/307502.pdf

 

945.png.5b1b37b56a41a5f439256e7988dc7a63.png

 

So the BIOS should automatically configure the memories at 667 Mhz, but maybe one of your sticks doesn't have the right profiles in them, or maybe because there's 4 sticks installs, the bios defaults to the slower 533 Mhz.

You should be able to go in BIOS and force them to run at 667 mhz.

 

Use software like CPU-Z  or Aida64 to read the SPD profiles inside the memory sticks, write down the ones for 667 Mhz (or whatever's closest), you may have to enter those values manually. 

 

later edit: The specifications for GX620 only mention 533 Mhz (see 2nd page, Memory section) : https://www.dell.com/downloads/emea/products/optix/opti_gx620_gx520_uk.pdf

 

 

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10 hours ago, mariushm said:

Did the memory run at any point at 800 Mhz?

 

if the system is Dell Optiplex GX620, which has a motherboard with the 945G chipset then the maximum official memory frequency supported is 667 Mhz:

 

See https://ark.intel.com/products/27720/Intel-82945G-Memory-Controller

or see page 24 here  https://www.intel.com/Assets/PDF/datasheet/307502.pdf

 

945.png.5b1b37b56a41a5f439256e7988dc7a63.png

 

So the BIOS should automatically configure the memories at 667 Mhz, but maybe one of your sticks doesn't have the right profiles in them, or maybe because there's 4 sticks installs, the bios defaults to the slower 533 Mhz.

You should be able to go in BIOS and force them to run at 667 mhz.

 

Use software like CPU-Z  or Aida64 to read the SPD profiles inside the memory sticks, write down the ones for 667 Mhz (or whatever's closest), you may have to enter those values manually. 

 

later edit: The specifications for GX620 only mention 533 Mhz (see 2nd page, Memory section) : https://www.dell.com/downloads/emea/products/optix/opti_gx620_gx520_uk.pdf

 

 

Oh my gosh i deeply appreciate your research, this problem was bothering me whole night last night. So would you agree that the gx620 motherboard only supports 533mhz ram, and that's why all of my 4 800mhz ram are all forced to run at 533 mhz? Does my gx620 not even support 667 mhz ram?

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