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Beginner
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Acer Travelmate 8472T Intel i3-380M/Chipset 55HM WHY?? RAMS working frequency lower (667MHz) than 1066MHz with PC specs DDR3 up to 1066MHz. Frequenza di lavoro delle RAM (667MHz) inferiore a 1066MHz; specifiche PC 2 banchi RAM DDR3 fino a 1066MHz.

Hello everyone,

I have a PC Acer Travelmate 8472T with the following Intel product inside: Intel i3-380M and Chipset 55HM.

It's support DDR3 Ram up to 1066MHz; it doesn't have a soldered GPU inside.

I'm struggling for a while cos both RAMS are working at 667MHz of frequency, instead of 1066MHz (RAM specs: 1333MHz), and I don't understand why.

During this period I tried to get informed about this problem but I didn't find anything. The only thing i found was the "Graphics Max Dynamic Frequency" of the CPU which is 667MHz. Could this value have to do anything with it?

I’m writing here in the Community Forum cos the product is discontinued and no longer supported

Thanks in advance.

Have a nice evening! Be safe and Healthy, take care!

 

(versione italiana)

Buonasera a tutti,

ho un PC Acer Travelmate 8472T con processore Intel i3-380M e Chipset 55HM.

Il PC supporta 2 banchi di RAM DDR3 fino a 1066MHz; senza Scheda Grafica saldata.

Sono in crisi da un po’ perché entrambe le RAM lavorano alla frequenza di 667MHz, invece di 1066MHz quando in realtà sono RAM DDR3 con max. frequenza 1333MHz, e non capisco perché.

Durante questo periodo ho provato a informarmi il più possibile a riguardo di questo problema, ma non sono riuscito a trovare nulla. L’unica informazione che mi è balzata all’occhio è il valore della “Frequenza dinamica massima grafica”della CPU che è 667MHz. Potrebbe avere qualcosa in comune con quello che sto cercando di risolvere?

Sto scrivendo qui nella Forum perché il al prodotto non è più garantito nessun supporto.

Ringrazio in anticipo.

Auguro una buona serata e di passare una buona e sana quarantena.

 

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4 Replies
Super User
27 Views

Sorry, but this is an issue you should really discuss with ACER.

 

Doc

 

Doc (not an Intel employee or contractor)
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Super User Retired Employee
27 Views

Did you forget what DDR stands for? Double Data Rate!

...S

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Beginner
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I didn't and so?

667MHz x 2 (double) = 1334MHz

PC's Terminal gives me these informations:

 

memory

    description: System Memory

    physical id: 10

    slot: System board or motherboard

    size: 4GiB

   *-bank:0

     description: SODIMM DDR3 Synchronous 667 MHz (1,5 ns)

     product: NT2GC64B8HC0NS-CG

     vendor: Nanya Technology

     physical id: 0

     serial: CA390D67

     slot: M1

     size: 2GiB

     width: 64 bits

     clock: 667MHz (1.5ns)

   *-bank:1

     description: SODIMM DDR3 Synchronous 667 MHz (1,5 ns)

     product: NT2GC64B8HC0NS-CG

     vendor: Nanya Technology

     physical id: 1

     serial: 0E3A0D67

     slot: M2

     size: 2GiB

     width: 64 bits

     clock: 667MHz (1.5ns)

 

Why are they working in synchronous mode?

I tried to use even one RAM only, but the "clock" was the same.

I'm comparing it with a MacBook, both Mac's RAMS are working at the correct speed of 1067MHz.

 

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Super User Retired Employee
27 Views

As Al mentioned, these are all questions that you need to be asking the system designers (namely Acer).

...S

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