In article <(E-Mail Removed)>,
kony <(E-Mail Removed)> wrote:
> On Sat, 19 Feb 2005 13:06:12 -0700, Steve Kives
> <chocolatemalt@dim=dot=com.invalid> wrote:
>
> >I had a very strange experience lately with a 3200+...
> >
> >I ordered the retail package from Newegg.com, no problems, the package
> >(unopened, unmolested) said "3200+ 400MHz FSB!" and the part no. on the
> >specimen itself even had "3200" in it, so it all checked out. However,
> >the computer actually got slower (I'm using a 3000+/333MHz FSB).
>
> What exactly do you mean, "I'm using a 3000+/333MHz" ?
Sorry if this was unclear. I'm using, right now, a 3000+/333MHz. It
has run (and continues to run) solidly. I bought this several months
ago thinking I would never upgrade my RAM and therefore didn't need the
400MHz FSB model, which cost another $40 or so at the time. Anyhow,
that was a big mistake, I did upgrade the RAM from 512 MB PC2700 to 1 GB
PC3200, and was ****ed at myself for getting stuck with a cpu that
couldn't fully take advantage of the new RAM. Hence, the attempt at the
upgrade to 3200+/400MHz.
> >Multiple utilities (including the BIOS) showed that the cpu was
> >reporting at "2500+", and the Sandra Lite arithmetic benchmark pegged it
> >as comparable to a 2200+!
>
> Back up and do the basic normal things!
> Check the motherboard manual. Look for any CPU speed or
> FSB speed jumpers. Check the bios menus. You may need to
> set the FSB yourself, it is common for a motherboard to
> first default to a lower FSB speed.
I did do the basic normal things, and mentioned it (albeit briefly) by
including "BIOS" in my "utilities" list, but I didn't want to bog down
the newsgroup post with too much boring detail. But, I'll do that now.
I really haven't deviated from the default set-up. Here are the
particulars from the BIOS menus, hopefully all the ones that matter:
CPU Multiple: Auto
AI Overclock Tuner: Standard
Spread Spectrum: Enable
Asynchronous Frequency: Disabled
VCORE Voltage: Auto
DDR Reference Voltage: Auto
AGP Reference Voltage: Auto
VIA KT880 northbridge:
DRAM clock: Auto
DRAM timing: Auto by SPD
DRAM BUS selection: Dual Channel
Only the last setting, forcing "Dual Channel", is something I've changed
in the course of some earlier investigation. I could change it back to
default "Auto" but I don't think it should care.
I've never overclocked this board or played with voltages, not yet
anyway.
As for the motherboard (A7V880), there are very few jumpers to play
with: clear CMOS; wake-on-keyboard; wake-on-usb-devices; and
cpu-overvoltage. All of these are disabled, which is also the default
config.
> >The present cpu checks out consistently at 3000+ w/ 333MHz FSB, with all
> >the utilities, and the benchmarks bear this out.
>
> "Checks out"? What exactly does this mean. You are being
> vague when details are most important. Nothing you wrote
> matters but the details you didn't write, do. I'm not
> trying to be hard on you, rather getting at the point in
> shortest manner possible.
>
> Forget about benchmarks until you can be sure you have CPU
> and FSB running at correct frequencies and multiplier.
Good suggestions, but I think I lost you when I didn't make clear that
the *present* cpu is a 3000+/333, and the *new* cpu is an
apparently-mislabeled 3200+/400. Without having that info, everything
else looks like mush.
I think I have all the motherboard and BIOS settings right, and the BIOS
is very recent. If you see otherwise, please let me know.
By "checks out" I mean that the present 3000+/333 reports consistent
info about itself in the BIOS and all the other utilities I listed, and
the Sandra benchmark (very basic integer test) compares it almost
exactly with Sandra's reference 3000+/333. This proves nothing, but
it's a lot of corroborating data. Again, if you have other preferred
utilities, or some of the ones I used are for ****, definitely let me
know.
> >I RMA'ed it back to newegg without a problem, except for having to pay
> >return shipping, which sucks, but newegg does everything else right and
> >it's a small cost so I won't worry about it.
>
> It is not impossible for a CPU to be counterfeit, but I've
> not heard of any coming from newegg. I suspect you'll get
> another CPU and be faced with same situation, that you need
> to change some settings else the benchmarks were simply
> painting a deceptive picture.
If it was counterfeit, the crooks did an awesome job on the packaging,
sturdy (thick heavy copper base) heatsink, cert of authenticity,
documentation, etc. The whole package really seemed perfectly legit.
My pet theory is that AMD had a factory screwup and mislabeled a 2500+.
But this doesn't explain why the 2500+ benchmarked as equivalent to a
2200+ on a very simple cpu test. I should've run more simple benchmarks
in other utilities, just for curiosity's sake, but didn't think of it
and it's too late now.
> >For the curious, here are the details:
> >
> >ASUS A7V880 (BIOS AMI 1007.005 or 08.00.09, depending where you look)
> >AMD Athlon XP 3000+ (Barton, 2166MHz, 333MHz FSB effective)
>
> So is it a 3000+ or a 3200+?
Both! I mean... which one?
A final question -- CPU-Z is reporting the following (on my *present*
cpu):
Specification: AMD Athlon(tm) 3000+
Speed: 2166 MHz
Multiplier: x13.0
My understanding is that the "specification" is a string hard-coded into
the cpu itself. Can anyone verify this? If so, the "AMD Athlon(tm)
2500+" I was reading off the pretender "3200+" cpu was a pretty
condemning piece of evidence.
Cheers, and thanks for the help...
--
Steve Kives -- Unix sysadmin/netadmin -- Denver, CO
Forward and fiaka, Manacle an den gosaka