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1gb ddr2 333mhz and 2gb ddr2 667mhz whether work together

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  • DDR2
  • RAM
  • Memory
Last response: in Memory
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August 25, 2013 3:59:51 AM

Hi, In my acer aspire 5920 1gb ddr2 333mhz ram is pre installed, I need to install another 2gb ddr2 667mhz ram in slot 2 whether these two will work together or will create some problems.

In the label it is shown as " 1GB 2R*16 PC2-5300S-555-12" HYNIX RAM

CPU-Z Application is shown DRAM Frequency as 333.4Mhz

Please advise

More about : 1gb ddr2 333mhz 2gb ddr2 667mhz work

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a b } Memory
August 25, 2013 4:14:22 AM

It will create problems. When you add memory, you should always use the same size, latency, timings, heck even brand. haha But seriously, it should be identical bro. It MAY run if it doesn't have the same latency because it will be downclocked to the slowest speed of memory installed. But for the size, I don't think so.
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a b } Memory
August 25, 2013 4:21:51 AM

I would say it will work, but you might not get maximum performance out of it. Shouldn't be worse than current though.

I'd guess that your current RAM is actually 667MT/s (two Transfers per Hz), same as new. They get somewhat mislabeled.
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August 25, 2013 4:21:53 AM

It will work but your new RAM would work at the speed of your old RAM at 333mhz.
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August 25, 2013 7:06:41 AM

Hi,
In the label it is shown as " 1GB 2R*16 PC2-5300S-555-12" HYNIX RAM

Someone Somewhere said:
I would say it will work, but you might not get maximum performance out of it. Shouldn't be worse than current though.

I'd guess that your current RAM is actually 667MT/s (two Transfers per Hz), same as new. They get somewhat mislabeled.


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a b } Memory
August 25, 2013 7:18:34 AM

Yup, PC2-5300 is DDR2-667.
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June 7, 2014 9:53:30 PM


Ddr2 333mghz. Ram is virtually impossible to find Fryes doesn't have it and substitutes don't fit slot ( notch is different) best solution : buy a new PC with 1633 MHz memory and throw the junker away

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a c 145 } Memory
June 7, 2014 10:01:06 PM

pheonixid said:
Hi, In my acer aspire 5920 1gb ddr2 333mhz ram is pre installed, I need to install another 2gb ddr2 667mhz ram in slot 2 whether these two will work together or will create some problems.

In the label it is shown as " 1GB 2R*16 PC2-5300S-555-12" HYNIX RAM

CPU-Z Application is shown DRAM Frequency as 333.4Mhz

Please advise


Hi,

333Mhz DDR2 is DDR2-667. On an Intel/AMD PC this is also expressable as PC2-5300. They are 3 different ways of stating the same thing.

CPU-Z reports the DRAM IO bus frequency, yet most companies market it according to the transfer rate, which is twice the IO bus frequency (that's where Double Data Rate is derived from).

In all likelihood they will work together just fine, but mixing and matching memory never has guaranteed results.
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