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8800 gts too slow...

 
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citizen513
Guest
PostPosted: Tue May 22, 2007 8:55 am    Post subject: 8800 gts too slow... Reply with quote
Hi there, I just got a new GeForce 8800 GTS 320MB, and performance is
not satisfying,

I get about 5800 points in 3DMark06 in WinXP and it should be around
9000 points.



I got an AMD Athlon X2 5000+ processor and a Chieftec 400W power supply.

Sorry for possible bad English, European here.

Thanks.
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Guest
PostPosted: Tue May 22, 2007 3:36 pm    Post subject: Re: 8800 gts too slow... Reply with quote
Have you installed the CPU driver and optimizer? These made a huge
difference for me. You can get them here:

http://www.amd.com/us-en/Processors/TechnicalResources/0,,30_182_871_13118,00.html

The optimizer is at the top and the XP CPU drivers are at the bottom.

On May 22, 3:26 am, citizen513 <citizen...@gmail.com> wrote:
Quote:
Hi there, I just got a new GeForce 8800 GTS 320MB, and performance is
not satisfying,

I get about 5800 points in 3DMark06 in WinXP and it should be around
9000 points.

I got an AMD Athlon X2 5000+ processor and a Chieftec 400W power supply.

Sorry for possible bad English, European here.

Thanks.
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deimos
Guest
PostPosted: Wed May 23, 2007 3:18 am    Post subject: Re: 8800 gts too slow... Reply with quote
citizen513 wrote:
Quote:
Hi there, I just got a new GeForce 8800 GTS 320MB, and performance is
not satisfying,

I get about 5800 points in 3DMark06 in WinXP and it should be around
9000 points.



I got an AMD Athlon X2 5000+ processor and a Chieftec 400W power supply.

Sorry for possible bad English, European here.

Thanks.

400W? I can't imagine that's putting out more than 18A on the 12V, and
having a high wattage CPU can't be good either. The 8800GTS will
automatically ramp down the clock speed whenever there is insufficient
voltage, so no wonder you're getting bad performance. The minimum spec
for total system amperage with an 8800 is 26A.
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citizen513
Guest
PostPosted: Wed May 23, 2007 10:15 am    Post subject: Re: 8800 gts too slow... Reply with quote
In article <l2O4i.234$4b4.40@newsfe03.lga>, deimos@localhost.net says...
Quote:
citizen513 wrote:
Hi there, I just got a new GeForce 8800 GTS 320MB, and performance is
not satisfying,

I get about 5800 points in 3DMark06 in WinXP and it should be around
9000 points.



I got an AMD Athlon X2 5000+ processor and a Chieftec 400W power supply.

Sorry for possible bad English, European here.

Thanks.

400W? I can't imagine that's putting out more than 18A on the 12V, and
having a high wattage CPU can't be good either. The 8800GTS will
automatically ramp down the clock speed whenever there is insufficient
voltage, so no wonder you're getting bad performance. The minimum spec
for total system amperage with an 8800 is 26A.


I guess that's it then...
Well, I will try with a different PSU and report results here.

But I can see clocks of the card all the time (atitool) and they are
fixed, 500gpu - 800mem, so I don't know how they could be ramped down?
--
--
sjetit cu se jos neceg
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Slap
Guest
PostPosted: Wed May 23, 2007 1:25 pm    Post subject: Re: 8800 gts too slow... Reply with quote
"citizen513" <citizen513@gmail.com> wrote in message
news:MPG.20bdec749aa5da61989b18@news.t-com.hr...
Quote:
In article <l2O4i.234$4b4.40@newsfe03.lga>, deimos@localhost.net says...
citizen513 wrote:
Hi there, I just got a new GeForce 8800 GTS 320MB, and performance is
not satisfying,

I get about 5800 points in 3DMark06 in WinXP and it should be around
9000 points.

I guess that's it then...
Well, I will try with a different PSU and report results here.

But I can see clocks of the card all the time (atitool) and they are
fixed, 500gpu - 800mem, so I don't know how they could be ramped down?

Ask the question here...
http://www.devhardware.com/forums/nvidia-video-card-6/

someone there might have an answer for you.
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citizen513
Guest
PostPosted: Thu May 24, 2007 8:24 am    Post subject: Re: 8800 gts too slow... Reply with quote
In article <fT25i.37536$p47.2158@bgtnsc04-news.ops.worldnet.att.net>,
"don't look" <don't look@worldnet.att.net> says...
Quote:
What settings are you running. Is Vsync on?AA and anisotropic filtering. The
highest benchmarks are on systems with all these OFF.Try that.


"citizen513" <citizen513@gmail.com> wrote in message
news:MPG.20bcb9867d44085c989b0f@news.t-com.hr...
Hi there, I just got a new GeForce 8800 GTS 320MB, and performance is
not satisfying,

I get about 5800 points in 3DMark06 in WinXP and it should be around
9000 points.



I got an AMD Athlon X2 5000+ processor and a Chieftec 400W power supply.

Sorry for possible bad English, European here.

Thanks.


Thank you good people,
I've found the problem.

I installed the card in second PCIe slot, on my DFi ultra-d board,
and the maual says it then runs at X2 instead X16 speed.
Checked with CPU-Z and really it is so.

So i have to move some jupers to enable 8X, at least untill I change the
pasive NB cooler that obstructs the card when in primary PCIe slot.

According to DFi forums, it improves perfs for about 20 %, exactly what
I was missing.

Thanks, SOLVED smile
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No One
Guest
PostPosted: Fri May 25, 2007 2:26 am    Post subject: Re: 8800 gts too slow... Reply with quote
Paul wrote:
Quote:
No One wrote:

citizen513 wrote:


Thank you good people,
I've found the problem.

I installed the card in second PCIe slot, on my DFi ultra-d board,
and the maual says it then runs at X2 instead X16 speed.
Checked with CPU-Z and really it is so.

So i have to move some jupers to enable 8X, at least untill I change
the pasive NB cooler that obstructs the card when in primary PCIe slot.

According to DFi forums, it improves perfs for about 20 %, exactly
what I was missing.

Thanks, SOLVED :)


I find all this wierd. From everything I read about PCI-express when
it came out (not to be confused with PCI-x and PCI-e), the "x factor"
was the slots width, not its speed. So, how does a mobo have a x16
width slot with only x2 width pins?


That is the beauty of deception. You can use a big connector, like the
long one for PCI Express x16. But if the designer only wires two of the
lanes, the other 14 lanes are open circuit. The silicon is clever
enough to negotiate the "connection size", so the system eventually
figures out the slot is x1, x2, x4, x8, or x16 in size. Those
are all the potentially valid numbers of wired lanes.

Some motherboards have a really clever connector design, that also
takes advantage of this, but is less deceptive. Some motherboards
have a x4 sized connector, where the end plate is cut off the connector.
That allows an end user to plug a x16 card into an x4 slot, and the
unused pins of the 12 unwired lanes, sit in the air. At least with
that concept, an end user knows the slot can never deliver more than
x4, because there are only enough pins for x4.

(Yellow connector is a special, open ended design, and can take a x16 card)
http://www.hothardware.com/articleimages/item830/big_12.jpg

Note that "cheating" is not limited to "sub-connecting" the x16 sized
slots. There are also motherboards with x4 connectors, with only two
lanes wired.

If you want to check how a slot is wired, one trick is to "count
capacitors". Next to a PCI Express slot, the lanes are capacitively
coupled with tiny ceramic SMT caps. There is a pair of caps per lane,
and they'll be jammed next to one another. If a PCI Express x16 connector
is fully utilized, there will be at least 16 pairs of caps next to the
slot.
This is how, on a recent deceptive motherboard offering, where a certain
6150 Nvidia derivative was offered for sale, it was possible to figure
out the product only had x8 worth of lanes. And in fact, that product
has been expunged from the Nvidia site. One day it was in their table
of chipset alternatives, and now it has magically disappeared.

So while the initial PCISIG standard may have expected an honest 1:1
relationship between "size of connector" and "number of wired lanes",
there are certainly a number of creative options.

SLI implementations add more fat to the fire. Using paddle cards, it
is possible to restrict available lanes. While the motherboard may have
the magic 16 pairs of caps, a paddle card can be used to disconnect
8 of them. But usually the accompanying motherboard documentation,
describes in some detail, that one position of the paddle card is
x16/x1 and the other is x8/x8. And don't ask me why they bothered
putting the x1 on there :-) One position of paddle needs 17 lanes
from the chipset, while the other uses 16 lanes.

Paul

So, my memory hasn't failed me, it IS width and not speed.
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