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Memory data transfer rate slow

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  • Memory
  • RAM
Last response: in Memory
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March 22, 2012 11:56:54 PM

I recently purchased a barebones kit from Tigerdirect.

This motherboard
GIGABYTE GA-M68MT-S2

2000 MT/s Bus


This processor
AMD ADX445WFK32GM Athlon II X3 445 Processor

2000 MHZ bus


and 2 sticks of this
Corsair CMX4GX3M1A1333C9 XMS3 4GB DDR3 RAM - PC10666
1333MHz

When I do a novabench memory test, I get 3700MB/s - or about 1/3rd the speed that this memory is capable of running.

For comparison - I have a computer at work with the same spec ram and novabench tests the transfer speed on that ram as 10000MB/s.

Where is my bottleneck?

More about : memory data transfer rate slow

a b } Memory
March 23, 2012 3:22:06 AM

This is odd. Your RAM shows correctly as being 667MHz (dual channel so 2x667 gives 1333MHz).

However your Novabench score does seem low.

Are you certain that both sticks of RAM are in the proper slots that the motherboard recommends for only two sticks?

(the only thing that popped into my head was that maybe the RAM sticks aren't in the right slots so you aren't getting dual-channel, only 667MHz instead of 1333MHz.)

*I have 1600MHz and get 8600MBytes/second.

Quite honestly, I didn't think the system would work if you had two sticks in the incorrect slots. This is a little baffling.
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a b } Memory
March 23, 2012 3:28:01 AM

*Try running Memtest ( www.memtest.org ) and use that to confirm:

1) you have the full amount of RAM (4096MB)

2) use the Memory speed here (I trust Memtest).

**Any chance one of your sticks isn't registering? (You'd only show HALF your RAM)
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March 23, 2012 4:28:54 AM

Both sticks are in the proper slots - the board only supports 2 memory chips. And it only supports a max of 8gigs ram.

Memtest confirms 2 4gb chips, and shows a speed of 4600MB/s. Still a bit off from what you'd expect. Perhaps it's just the case of you get what you pay for, and the bargain mobo just isn't cutting it.
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