6800GT PCI-E OC probs

[mopeygoth]

Hey all,

I recently swapped my intel system for an amd64 one.
asus a8n-sli deluxe /3500+ winchester 0.09 / 6800GT pci-e

with my 6800gt agp i could go as high as 425/1200, but on my pci-e there are glitches and artifacts even at 400/1150 already (syndrome of core overheating, not ram) temps are at 66c under load when oc'ed, just like my previous card.

I hardcore stresstested it at stock, but there were no imagecorruption, therefor no defective pipelines

pci-e is clocked at 100mhz
cpu at 2550mhz atm
ram at 533mhz 2.5-3-3-6-2T atm
HT at 1076mhz
divider 9.5 atm

any ideas? vid-bios mod for 1.4v? or..?



Abit IC7 Max3 - P4E3.0@3.81 - CNPS7000B-CU - i875P - 1024mb ddr500@508@2.5-3-3-7 - 6800GT 425/1200 - 600W dualfan PowerTek Psu - WD740GD - LG 4162B - 19" MAG 996PF2

 

[mopeygoth]

I figured it's the RAM after all, they make artifacts even at 1080mhz, which sucks since my old card could easily do 1200mhz. kinda disappointed, but hell.. nf4/amd64 pretty much makes it insignificant in performance comparison from before

if there's anymore whining i'll just go sli..

then.. what have people gotten out of their 1.4v biosmods?

ASUS A8N-SLI-Deluxe - AMD64 3500+@4090+ - CNPS7000B-CU - 1024mb ddr500@538@2.5-3-3-6 - 6800GT PCI-E 400/1050 - 500W 140mm NQ-4775 Psu - WD740GD - LG 4162B - 19" MAG 996PF2

 

[Unolocogringo]

Two differenr cards overclock differently. I have one 6800 that will do 440/960 and another that caps out at 400/800.
It is the luck of the draw with PC parts.

I aint signing nothing!!!

 

[mopeygoth]

Albatron cards, both of them 2ns ram i think.. forgot the brand

ASUS A8N-SLI-Deluxe - AMD64 3500+@4090+ - CNPS7000B-CU - 1024mb ddr500@538@2.5-3-3-6 - 6800GT PCI-E 400/1050 - 500W 140mm NQ-4775 Psu - WD740GD - LG 4162B - 19" MAG 996PF2

 

[mopeygoth]

true.. just annoying that it happend with the exact same brand and series

ASUS A8N-SLI-Deluxe - AMD64 3500+@4090+ - CNPS7000B-CU - 1024mb ddr500@538@2.5-3-3-6 - 6800GT PCI-E 400/1050 - 500W 140mm NQ-4775 Psu - WD740GD - LG 4162B - 19" MAG 996PF2

 

[Vapor]

Corsair doesn't make graphics cards I thought....

Maxtor disgraces the six letters that make Matrox.

 

[Vapor]

OCability is pretty much random most of the time, regardless of other cards, even with the EXACT same model number, could do.

Maxtor disgraces the six letters that make Matrox.

 

[Vapor]

Oh yeah, your RAM isn't at DDR533....it's at DDR510. If you use a half multiplier with an A64, it will take your CPU speed, round up your multiplier (in your case, to ten) and divide by it. You're actually running 255MHz 2.5-3-3-6-2T (which are, frankly, awful timings, but the A8n-SLI will do that to you).

Maxtor disgraces the six letters that make Matrox.

 

[Skidd]

The PCI-X versions run at lower clock speeds becuase the PCI-X slot only uses a 100mhz bus. And it wont help to increase this either.

Skidd
----------------
P4 LGA775 2.8ghz
Gigabyte 915G Chipset
1GB Samsung DDR400
Nvidia Geforce 6600GT

 

[mopeygoth]

really? that's not what cpuid or any other software tells me

I haven't been pushing the ram that much you, been more concerned with the GPU. I've had them at 550mhz and reviewers have had them at 598mhz, so yeah.. they suck big time haha

ASUS A8N-SLI-Deluxe - AMD64 3500+@4090+ - CNPS7000B-CU - 1024mb ddr500@538@2.5-3-3-6 - 6800GT PCI-E 400/1050 - 500W 140mm NQ-4775 Psu - WD740GD - LG 4162B - 19" MAG 996PF2

 

[mopeygoth]

hmm.. must be crucial that does then.. easy to confuse the two

ASUS A8N-SLI-Deluxe - AMD64 3500+@4090+ - CNPS7000B-CU - 1024mb ddr500@538@2.5-3-3-6 - 6800GT PCI-E 400/1050 - 500W 140mm NQ-4775 Psu - WD740GD - LG 4162B - 19" MAG 996PF2

 

[mopeygoth]

LOL true.. they are Adata Vitesta DDR500 CL3, but they clock rather well as you can see though they are not exactly Geil Platinum, right

ASUS A8N-SLI-Deluxe - AMD64 3500+@4090+ - CNPS7000B-CU - 1024mb ddr500@538@2.5-3-3-6 - 6800GT PCI-E 400/1050 - 500W 140mm NQ-4775 Psu - WD740GD - LG 4162B - 19" MAG 996PF2

 

[Vapor]

Yeah, surprisingly CBID and CPU-Z and Sandra don't pic up on it (maybe the new CPU-Z does), but I'm most definitely positive that you're running your RAM slower than you think.

Maxtor disgraces the six letters that make Matrox.

 

[Vapor]

It has nothing to do with that. It's all about core quality and the degree of ram faults at certain speeds (if even one of the eight chips can't take the speed, no more for the rest of the RAM).

Maxtor disgraces the six letters that make Matrox.

 

[mopeygoth]

hmm.. nvidia ntune displays the same as cpu-z. but thanx, i'll be sure to check up on it

CPU-Z 1.29 reports the same

ASUS A8N-SLI-Deluxe - AMD64 3500+@4173+ - CNPS7000B-CU - 1024mb ddr500@520@2.5-3-3-6 - 6800GT PCI-E 400/1050 - 500W 140mm NQ-4775 Psu - WD740GD - LG 4162B - 19" MAG 996PF2<P ID="edit"><FONT SIZE=-1><EM>Edited by mopeygoth on 06/06/05 09:50 PM.</EM></FONT></P>

 

[mopeygoth]

PCI-X and PCI-E is not the same thing sir

ASUS A8N-SLI-Deluxe - AMD64 3500+@4173+ - CNPS7000B-CU - 1024mb ddr500@520@2.5-3-3-6 - 6800GT PCI-E 400/1050 - 500W 140mm NQ-4775 Psu - WD740GD - LG 4162B - 19" MAG 996PF2

 

[mopeygoth]

why? because they are not capable of 2-2-2-5-1T?

i don't know much about A64 yet.. this is my first amd since the k6-2

i suppose you are relating to the timings, yes?

ASUS A8N-SLI-Deluxe - AMD64 3500+@4173+ - CNPS7000B-CU - 1024mb ddr500@520@2.5-3-3-6 - 6800GT PCI-E 400/1050 - 500W 140mm NQ-4775 Psu - WD740GD - LG 4162B - 19" MAG 996PF2

 

[mopeygoth]

heh,
hm.. ah see. I find this system a hell of a lot more stabile than my previous rig, though with the i875 i got better memory performance; regardless of instability.

I am nowhere done playing around with this though. I seems the board accepts higher vDimm as well and higher clockspeeds than my ic7-max3.
so, you'd advise me to pass on these modules and go for something else? like what within this pricerange

I know what Vapor meant with the ddr speeds, sometimes the selections in the bios is overridden depending on the independent configuration. You'll just have to doublecheck when a combo of settings are made. When done within nVtune, it does sometime display the wrong ddr frequency, as you said, 562 as opposed to 533 for instance. (cpu-z vs. world)

ASUS A8N-SLI-Deluxe - AMD64 3500+@4186+ - CNPS7000B-CU - 1024mb ddr500@550@2.5-3-3-6 - 6800GT PCI-E 400/1050 - 500W 140mm NQ-4775 Psu - WD740GD - LG 4162B - 19" MAG 996PF2

 

[mopeygoth]

hm.. tnx

still the lack the 1T commandrate, you can tell here:
<A HREF="http://www.tweakup.dk/article/325/dk/" target="_new">http://www.tweakup.dk/article/325/dk/</A>
these guys don't really take them that far though

ASUS A8N-SLI-Deluxe - AMD64 3500+@4186+ - CNPS7000B-CU - 1024mb ddr500@550@2.5-3-3-6 - 6800GT PCI-E 400/1050 - 500W 140mm NQ-4775 Psu - WD740GD - LG 4162B - 19" MAG 996PF2

 

[mopeygoth]

hm.. it seems in the end you were right

550+ requires cas 3

i figured to get them running stabile with 1T though, there are soo many ram adj. settings in that bios it's a lifetime experience

ASUS A8N-SLI-Deluxe - AMD64 3700+@4400+ - CNPS7000B-CU - 1024mb ddr500@500@2.5-4-4-7-11-24-2-2-1T - 6800GT PCI-E 400/1000 - 500W 140mm NQ-4775 Psu - WD740GD - LG 4162B - 19" MAG 996PF2