Have a stumper for you all... I have been banging my head against the wall for 2 days on this one. I am mostly asking this to see if someone here has actually seen or knows of this issue, and has a quick fix.
Have an E4300 oc'd to 2.7Ghz. Had a MSI X1900XT 512MB PCI-e. The card failed, for whatever reason, and I sent it out for RMA. I got back a 8800GTS 320MB. I wasn't about to complain, massive upgrade!! I don't use my 3D card for newer games (hate them, stupid), but I do play SimCity 4 and do real-time Lego model previews. Anyways..
So, I put the card in my machine, and its SLOWER than the X1900XT. I updated to the most recent driver, no go. Used DriverCleaner, etc. No go.
To eliminate my install of Windows, I detached my HDD, installed a blank one, installed Windows, Chipset, Video driver in that order, still slow.
Next, I thought that maybe my overclocking was the cause, so I put the CPU back to defaults. Low and behold, the card speeds up to normal. WEIRD.
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The techie details: when I raise the FSB higher than 205mhz, the video card SLOWS down by 25%-50%, or worse. Changing the setting of the PCI-e bus speed makes no difference, unless I raise it above 103, and then the machine doesn't POST. Changing the PCI Latency from 32 to anything makes no difference. Changing the memory bus speed makes no difference. Removing unnecessary cards, disconnecting CD-ROMs, and shutting off BIOS features (ports, usb, etc) makes no difference. Going back to an older driver makes no difference.
I don't have any final 3DMark06 numbers(too impatient to wait for it to finish), but I know the slow down occurs, because running the Proxycon test when CPU is overclocked averages about 10-20fps, and when not overclocked, I get 50fps, or so. Also, when I test my HUGE Lego model in the LDView program, it will spin at about 8fps when the machine is overclocked, whereas I get 12-15fps when not overclocked. (The model is huge, like 5 feet by 10 feet, so don't be alarmed by the low numbers there.)
Another thing to mention, is that the card doesn't just get slow, it "stutters". It will render a couple of frames okay, then stop for a short bit (its a -very- short time, but noticeable), then another, and so on. If the machine is not overclocked, all rendering is smooth as silk.
My guess is some sort of weird timing/synch issue between the video card and the MOBO, but I don't know how to confirm and/or correct the issue.
Here's the system's specs:
OS: Windows XP Pro SP2 w/all updates
CPU: Intel E4300 @ 2.7ghz (300x9 stock cooling)
MOBO: Gigabyte 965P-DS3 rev2.0 / F11 BIOS
RAM: 2x1GB G.Skill DDR2-800Mhz 5-5-5-15 (stock timing, bus is always set at or below 800Mhz)
Video Card: MSI NX8800GTS 320MB PCI-e @ stock clock settings
Video Driver: nVidia 158.22
PSU: Kingwin ABT-600MM (20A on the 12v rail)
HDD: 2x WD 36GB SATA Raptor & 1xSeagate 120GB SATA
Optical: 24x CD-RW, 16xDVD-RW DL
Will post more details when asked, as brain is failing from frustration.
Please do not make fun of my choice of hardware, or say things like "It's your cpu, get something faster", because thats just being a jerk.
Thanks.
Have an E4300 oc'd to 2.7Ghz. Had a MSI X1900XT 512MB PCI-e. The card failed, for whatever reason, and I sent it out for RMA. I got back a 8800GTS 320MB. I wasn't about to complain, massive upgrade!! I don't use my 3D card for newer games (hate them, stupid), but I do play SimCity 4 and do real-time Lego model previews. Anyways..
So, I put the card in my machine, and its SLOWER than the X1900XT. I updated to the most recent driver, no go. Used DriverCleaner, etc. No go.
To eliminate my install of Windows, I detached my HDD, installed a blank one, installed Windows, Chipset, Video driver in that order, still slow.
Next, I thought that maybe my overclocking was the cause, so I put the CPU back to defaults. Low and behold, the card speeds up to normal. WEIRD.
~~~~~~~~~~~~~~~~~~
The techie details: when I raise the FSB higher than 205mhz, the video card SLOWS down by 25%-50%, or worse. Changing the setting of the PCI-e bus speed makes no difference, unless I raise it above 103, and then the machine doesn't POST. Changing the PCI Latency from 32 to anything makes no difference. Changing the memory bus speed makes no difference. Removing unnecessary cards, disconnecting CD-ROMs, and shutting off BIOS features (ports, usb, etc) makes no difference. Going back to an older driver makes no difference.
I don't have any final 3DMark06 numbers(too impatient to wait for it to finish), but I know the slow down occurs, because running the Proxycon test when CPU is overclocked averages about 10-20fps, and when not overclocked, I get 50fps, or so. Also, when I test my HUGE Lego model in the LDView program, it will spin at about 8fps when the machine is overclocked, whereas I get 12-15fps when not overclocked. (The model is huge, like 5 feet by 10 feet, so don't be alarmed by the low numbers there.)
Another thing to mention, is that the card doesn't just get slow, it "stutters". It will render a couple of frames okay, then stop for a short bit (its a -very- short time, but noticeable), then another, and so on. If the machine is not overclocked, all rendering is smooth as silk.
My guess is some sort of weird timing/synch issue between the video card and the MOBO, but I don't know how to confirm and/or correct the issue.
Here's the system's specs:
OS: Windows XP Pro SP2 w/all updates
CPU: Intel E4300 @ 2.7ghz (300x9 stock cooling)
MOBO: Gigabyte 965P-DS3 rev2.0 / F11 BIOS
RAM: 2x1GB G.Skill DDR2-800Mhz 5-5-5-15 (stock timing, bus is always set at or below 800Mhz)
Video Card: MSI NX8800GTS 320MB PCI-e @ stock clock settings
Video Driver: nVidia 158.22
PSU: Kingwin ABT-600MM (20A on the 12v rail)
HDD: 2x WD 36GB SATA Raptor & 1xSeagate 120GB SATA
Optical: 24x CD-RW, 16xDVD-RW DL
Will post more details when asked, as brain is failing from frustration.
Please do not make fun of my choice of hardware, or say things like "It's your cpu, get something faster", because thats just being a jerk.
Thanks.
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