357 instead of 400 !

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357 instead of 400 !

Postby dipu » Sat Jan 24, 2009 11:05 am

I am using 2 sticks of Transcend 2BG modules at Dual channel on a MSi K9AG Neo2 Digital. I used CPU-Z to see the memory speed and timings. it shows 357 instead of 400. My cpu multiplier was 12.5. I changed it to 12 and it is 400 now. But processor speed is now 2.4GHz which was 2.5GHz.

What is good for me?
using AMD 4800+ @2.5=200x12.5 with 357MHz memory speed or
AMD 4800+ @2.4=200x12.0 with 400MHz memory speed.
:-k
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Re: 357 instead of 400 !

Postby GI-JOE » Sat Jan 24, 2009 11:21 am

I'd say that the difference would be negligible.
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Re: 357 instead of 400 !

Postby dipu » Sat Jan 24, 2009 11:25 am

Which difference Processor or Memory ?
AMD Athlon 64x2 4800+ @2.675Ghz O.C by Stock Cooler 26.0c ~ 50.0c
MSI K9AG Neo2 Digital
2Gx2Transcend DDR2-800
XFX GeForce 7600GT XXX 256MB DDR3
Samsung SATA 200G HDD 7200 RPM
Samsung SATA 320G HDD 7200 RPM
ASUS SATA DVD BURNER
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Re: 357 instead of 400 !

Postby GI-JOE » Sat Jan 24, 2009 11:44 am

Either. I do believe I saw some bench marks when the first brisbane's came out that showed what you are looking for. I'll try finding it.

Here they are discussing your problem.
http://www.tomshardware.com/forum/23889 ... 0-brisbane

It looks like having your ram run slightly slower will only result in ~3 percent penalty.

Edit: If I'm not allowed to post that link, please remove it mods.
-----------------------------------------------------
- CoolerMaster Elite 330
- Intel Pentium Dual Core E5200 @ 3.16ghz (9.5 x 333 @ 1.12 volts)
- Gigabyte GA-P35-DS3L
- 4 GB G-Skill DDR2 800
- Asus 8800GT 512mb w/Glaciator Fansink
- Antec Trio TruePower 650w
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Re: 357 instead of 400 !

Postby stev » Sat Jan 24, 2009 9:50 pm

Great post of information. Speed isn't everything if the whole system isn't in tune.

That little loss of 100Mhz vs. gaining the memory speed is minor. I'll go with the memory speed.

Now that you have the machine tuned well with the timings and such, are you folding for team LR?
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Re: 357 instead of 400 !

Postby dipu » Mon Jan 26, 2009 4:52 am

are you folding for team LR? And I saw that discussion in Toms Hardware. I can still get almost 2.6 with 12 multiplier by O.C. So i think 400MHz memory is helping.
What do you say.
Attachments
Memory Timing.JPG
Dual DDR-2 800MHz Memory Timing
Memory Timing.JPG (20.47 KiB) Viewed 200 times
AMD Athlon 64x2 4800+ @2.675Ghz O.C by Stock Cooler 26.0c ~ 50.0c
MSI K9AG Neo2 Digital
2Gx2Transcend DDR2-800
XFX GeForce 7600GT XXX 256MB DDR3
Samsung SATA 200G HDD 7200 RPM
Samsung SATA 320G HDD 7200 RPM
ASUS SATA DVD BURNER
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