Low memory performance rating

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Guest

Any chance you have 4x 512 sticks in an nforce 4 motherboard? I do and by
default DDR400 memory runs at DDR333 speeds and I had to manually set them
to DDR400 speeds and timings.

Colin T
 
Have 2 G of matched Kingston PC3200 in a dual channel mode.
Why would my memory rating only be 3.7.
I see all comparable ones up in the high 4's.
Pete
 
Colin,
They were 512's and it is a nforce 4. Now their 1 G each, DDR400 (PC3200).
Do I have to make a change in the BIOS settings, like the voltage?
And thanks for a quick reply.
Pete
 
Worth a shot,

At the post screen on boot you should see a line about the memory, it should
say DDR400, but might say DDR333.

It's worth hitting delete during POST and having a look inside your BIOS, it
may also be worth seeing if your mobo manufacturer has a new bios released.

There is literally a whole bunch of reasons that this can happen, if you
have an Athlon64 before the Venice core was released it could be it, as AMD
updated the memory controller, it could be the bios as boards have been
updated to fix memory problems on it. The memory might even be faulty
memory.

I have 4 x 512 sticks of Kingston ValueRam DDR400 memory and have to reset
the timings and speed in the bios otherwise they read as DDR333 and I get a
WEI of 4.9 for it afterwards.

Colin T
 
I get 5.9 from 2GB's of 800mhz DDR2 memory. There are lots of different
speeds in memory so the higher the speed the better the performance will be.
 
True but, I'm stuck in DDR400 mode with the same brand name of memory as the
top poster, it more than likely his is underperforming. Without the benefit
of product numbers I can't be more accurate but it more of a like for like
comparison than DDR2@800 mhz.

Colin T
 
I'm using the new Kingston HyperX KHX3200K2/2G
I didn't have dual channel as I thought, moved to DIMM1 and 2.
Also moved the memory voltage from 2.55 to 2.65 which the Kingston site says
is allowable.
Prior to all of this, various benchmarks including SIS Sandra Pro told me
that the mem speed was decent, not outstanding.
The memory portion of the "PC Pitstop" test rated me at 78% of comparable
units.

And a 3.7 from Vista.

Since the change to the proper dual channel config and increasing the
voltage, sandra gives me a great benchmark, PC Pitstop says I'm at 102% in
memory speed comparison and

Vista still says I'm a 3.7.

Overall performance of the machine, sort of built for Vista, is outstanding
with both XP and Vista.
The rating, however, tells me there's still something wrong, or buggy, since
others with the same type rigs are getting high 4's.
Maybe I should just forget it but I'm not a quitter.
And thanks, folks, for jumping in.
Pete
 
I have 1.5GB of DDR400 PC3200 RAM, Corsair ValueSelect, running in Single
Channel mode. Vista's rating gives it a 4.5
 
jbpete said:
Have 2 G of matched Kingston PC3200 in a dual channel mode.
Why would my memory rating only be 3.7.
I see all comparable ones up in the high 4's.
Pete
Click to expand...


That *is* strange. I have 4 GB dual channel PC2100 and get a score of 4.2 in Vista
RTM.

Tom Lake
 
Just by a quick assessment here, but, did you re-rate your system in Vista
after moving to dual channel?
 
PC3200 is DDR RAM

Most new computers are delivered with DDR2 RAM which is quite a bit faster
and will give you a higher score.

--


Regards,

Richard Urban
Microsoft MVP Windows Shell/User
(For email, remove the obvious from my address)

Quote from George Ankner:
If you knew as much as you think you know,
You would realize that you don't know what you thought you knew!
 
Sounds good, I'm sure if you trawl the the internet, someone will have the
same memory and motherboard and the same issues. If other benchmarks are
giving you good readings, I'd not worry about Vista. The most important
thing is if you notice the good/bad performance, benchmark are only a guide.

Bear in mind that if you experience any stability issues, it could be the
memory causing it as I suppose technically you are overclocking it and Vista
seems more sensitive to memory than XP.


Colin T
 
Mike, Yes I did re-rate.

Richard, aware that DDR2 will give you higher score.
My point in discussing this is that similar or systems with less memory will
receive a higher memory performance rating. There are some on this post,
Jane, for example, with 1.5G of DDR PC3200, single channel with a score of
4.5.
Mine is 2 G DDR 3200, dual channel with a 3.7.
Based on the comments here and elsewhere, I don't think I'm going to give
much weight to the performance ratings even though MS has given it a lot of
buzz.
Thanks to all, especially cheddarhead who really showed his expertise in
Vista.
 
I am sure that the "clock" speed of the RAM enters into the picture. Not all
PC3200 RAM is created equal. (-:

--


Regards,

Richard Urban
Microsoft MVP Windows Shell/User
(For email, remove the obvious from my address)

Quote from George Ankner:
If you knew as much as you think you know,
You would realize that you don't know what you thought you knew!
 
Well, I know that if I go with the default ratings provided by SPD for my
Corsair RAM (clock 2.5) - I get one reading.

If I then manually change to the maximum speed timings (clock 2.0) I get
another reading.

As I said, it could just be in your timings. Until you have tried
everything, you just don't know - do you?

And again, all PC3200 RAM is not created equal.

--


Regards,

Richard Urban
Microsoft MVP Windows Shell/User
(For email, remove the obvious from my address)

Quote from George Ankner:
If you knew as much as you think you know,
You would realize that you don't know what you thought you knew!
 
That is exactly the RAM I am using (2 gig worth).

It may be a M/B anomaly. Hint: they're not created equal either.

I go from 3.7 to 3.9 when I run at clock 2 settings.

--


Regards,

Richard Urban
Microsoft MVP Windows Shell/User
(For email, remove the obvious from my address)

Quote from George Ankner:
If you knew as much as you think you know,
You would realize that you don't know what you thought you knew!
 
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