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12-03-2003, 01:34 PM
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#1 (permalink)
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Join Date: Aug 2003 Location: Stockholm, Sweden
Posts: 43
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DDR Pc3200 question
Hi everyone, I just bought a new computer from a store and it is supposed to be a:
AMD 3000+ Barton
ECS KT600-A MoBO
512 DDR PC3200 400mhz
ATI RADEON 9600 pro
etc, etc...
Well I ran Aida32 just to check some things and I noticed that according to it I had (just copied and pasted it):
Nanya M2U51264DS8HB3G-5T
None
512 MB (2 rows, 4 banks)
Unbuffered
DDR SDRAM
PC3200 (200 MHz)
64 bit
SSTL 2.5
Reduced (7.8 us), Self-Refresh
3.0 (5.0 ns @ 200 MHz)
2.5 (6.0 ns @ 166 MHz)
You see I'm no expert at hardware, but I reacted since it says: PC3200 (200 Mhz)! So I'm just wondering if anybody can explain to me what's going on. Maybe the store screwed me, and if so is the case I would really like to know.
If any more details are needed just ask and I'll post them.
/Drakon
ps. I ran the benchmark that comes with Aida32 and my computer only gets 2261 Mb/s reading and 706 Mb/s writing which is, according to the programs own list, worse than a AMD 2600+ on a Kt400 MoBO. Anybody know why?
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12-03-2003, 01:35 PM
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#2 (permalink)
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Join Date: Aug 2003 Location: Northwestern MN
Posts: 1,111
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it is techically running at 200 Mhz but it is DDR so it is actually running at 400Mhz
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12-03-2003, 01:38 PM
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#3 (permalink)
| | Registered User
Join Date: Aug 2003 Location: Stockholm, Sweden
Posts: 43
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Ok thanks, yeah I should have figured that out, Double Data Rate.... Any ideas on my second question by the way?
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12-03-2003, 01:42 PM
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#4 (permalink)
| | Registered User
Join Date: Feb 2002 Location: midvale, utah
Posts: 1,296
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Yeah it seems you are a bit confused. PC3200 is the naming scheme of how many bits it will put out. Which is a better way to do it since we aren't really after the megahertz rather the throughput.
The stick is 8 bits wide, and runs at 200mhz*2.
400mhz * 8bits = 3200
So your memory speeds that are showing up are correct.
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12-04-2003, 12:01 PM
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#5 (permalink)
| | Guest
Join Date: Jun 2003
Posts: 1,203
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Dual Channel gives 2 times the bandwidth right?, wouldnt that ,make a 200 Mhz module 800 MHz efficient?
Jeordiewhite thanks for the info about 8 bits, I had no clue why PC 3200 was actually called 3200.
PS. How is that Radeon 7500 holding up?, Around christmas I am putting up for sale a made by ATI Radeon 9000 Pro 128 for sale for around around $60 shipped.
Last edited by Darthgary; 12-04-2003 at 12:06 PM.
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12-04-2003, 05:46 PM
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#6 (permalink)
| | Registered User
Join Date: Jan 2003 Location: Wilsonville, OR
Posts: 2,220
| Quote: | Originally posted by Darthgary Dual Channel gives 2 times the bandwidth right? | Yeah, instead of a 64bit data path it's 128bits, twice the theoretical bandwidth.
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12-04-2003, 05:48 PM
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#7 (permalink)
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Join Date: Jun 2003
Posts: 1,203
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I knew it was 128 Bit, but not that each pipe was 64 BIT.
Damn, learn something new every day.
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12-04-2003, 05:50 PM
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#8 (permalink)
| | Registered User
Join Date: Jan 2003 Location: Wilsonville, OR
Posts: 2,220
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Roger that.  | |
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12-04-2003, 11:39 PM
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#9 (permalink)
| | Guest
Join Date: Jun 2003
Posts: 1,203
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Then it would match a 800 MHz module on a 64 Bit BUS.
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06-07-2004, 03:38 PM
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#10 (permalink)
| | Registered User
Join Date: Jun 2004
Posts: 6
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anybody know a place i can buy nanya ram?? i would prefer that it told me the ram model number...
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