I have seen quite a variation in the speeds of my cards
I have 3 XFX XXX version 5830s with the rear exhausts and they can all do 1000mHz easily, I have 2 5830s that only vent into the case that are only stable at 950.
I have a 5850 that wont go beyond 900. all these are regardless of the temperature
Topic: 5830 overclocking shortfall - page 2. (Read 2962 times)
huh. guess I got lucky and scored a good one. I thought all 5830s were good for an easy 1000+ on the core..
I'm running 2 5830s so I figured I post my speeds here too - both overclocked to 960 and memory under clocked to 325 using afterburner.
I was running at 975 but I noticed it wasn't quite as stable (probably due to increased temp). I've also been running at 310mh/s whether it's at 960 or 975.
I'm using Phoenix to mine btw as I noticed for me that gives me a better speed.
I was running at 975 but I noticed it wasn't quite as stable (probably due to increased temp). I've also been running at 310mh/s whether it's at 960 or 975.
I'm using Phoenix to mine btw as I noticed for me that gives me a better speed.
at stock volts I run 1040 core 354 mem for weeks on end and its never crashed at that speed. even at 1050 it runs for a few days before crashing. I dont like having to check it so I leave it 1040.
what are your temps? under 70? mine runs in the mid 60s. open case, with a 120v muffin fan aimed at it.
what PSU? card is on PEGs with no adapters (although adapters shouldnt make a difference)? wondering if your 12 is sagging.
mine is the sapphire 5830 xtreme, it has a non reference cooler. but from what Ive seen and read theres nothing special or "extreme" about it.
what are your temps? under 70? mine runs in the mid 60s. open case, with a 120v muffin fan aimed at it.
what PSU? card is on PEGs with no adapters (although adapters shouldnt make a difference)? wondering if your 12 is sagging.
mine is the sapphire 5830 xtreme, it has a non reference cooler. but from what Ive seen and read theres nothing special or "extreme" about it.
Relax, in the long run you are better off staying away from the bleeding edge. i have some 5830's and i run them at 950 exactly as you are now, they could go up to 1000 but i prefer stability, also 310Mhash/s is very good for a 5830, that's 5850 territory.
i have xfx 5830 and its doing its best stabile at 950/345 @ 310 MH.
it doesnt have voltage control and it only stabile to this point.
i can push it to 330MH, but it wont be stabile, and im guessing that is what those dudes did on hardware comparison page.
cheers
it doesnt have voltage control and it only stabile to this point.
i can push it to 330MH, but it wont be stabile, and im guessing that is what those dudes did on hardware comparison page.
cheers
I haven't tried to mess with the memory clock much I have tried it at the stock 1000 MHz and 810 MHz.
Definitely drop the memory to 300 mhz. 300-350 mhz is standard practice for bitcoin mining.
Also what program are you using to overclock?
I have a 5830 card that I recently installed but I can't seem to get it to overclock to the degree that I see others doing. I can only increase the clock speed to 950 MHz
What brand/model number?
I have a 5830 card that I recently installed but I can't seem to get it to overclock to the degree that I see others doing. I can only increase the clock speed to 950 MHz where I see several reports on the mining hardware comparison that state 1040. I haven't tried to mess with the memory clock much I have tried it at the stock 1000 MHz and 810 MHz. Is there something I'm missing here or is it just a poor performer?
If it matters I am mining with guiminer, phoenix with the phatk kernel that is bundled with guiminer. (-k phatk VECTORS BFI_INT FASTLOOP=true WORKSIZE=128)
If it matters I am mining with guiminer, phoenix with the phatk kernel that is bundled with guiminer. (-k phatk VECTORS BFI_INT FASTLOOP=true WORKSIZE=128)
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