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PcChip (OP)
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July 01, 2011, 04:41:09 AM |
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Hey guys, I've had a few people say that my 400 MH/s hash rate must be a fairy tale, I wanted to post a pic eventually, but now seemed like a good time to post a pic of 1000 MHz core with a private beta phatk kernel , my highest hashrate yet! I'm too scared to go over this voltage, I don't want to push it too far  What is the current record for a 5850? (or at least, one on air/reference cooler) |
Legacy signature from 2011:
All rates with Phoenix 1.50 / PhatK
5850 - 400 MH/s | 5850 - 355 MH/s | 5830 - 310 MH/s | GTX570 - 115 MH/s | 5770 - 210 MH/s | 5770 - 200 MH/s
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ElectroGeek007
Member
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Activity: 79
Merit: 10
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July 01, 2011, 04:46:04 AM |
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I got my reference 5850 up to 1.200v and 1020 MHz, which yielded 404 MH/s, but the VRM got too hot for my liking, a bit over 100C!  |
"And what the enemy will see, they will see the flash of our cannons, and they will hear the ringing of our swords, and they will know what we can do! By the sweat of our brow and the strength of our backs and the courage in our hearts! Gentlemen, hoist the colors!"
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PcChip (OP)
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July 01, 2011, 04:52:57 AM |
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I *think* I would have beat it without the kernel optimization that bitless posted a few days ago (3% speedup for everyone), but that plus the new private 1% opt I'm trying tonight makes it feel like I'm cheating a bit
Even still, I know it would have done 400 MH/s with the old kernel that everyone else was using
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Legacy signature from 2011:
All rates with Phoenix 1.50 / PhatK
5850 - 400 MH/s | 5850 - 355 MH/s | 5830 - 310 MH/s | GTX570 - 115 MH/s | 5770 - 210 MH/s | 5770 - 200 MH/s
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Atroxes
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Activity: 119
Merit: 100
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July 01, 2011, 06:41:39 AM |
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Private Beta? |
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malevolent
can into space
Legendary
Offline
Activity: 3472
Merit: 1721
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July 01, 2011, 10:03:35 AM |
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What was the default voltage, OP?
I can only get 805MHz stable. @900 (without voltage increase it's not very stable :/ ~350 Mhash/s though)
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Signature space available for rent.
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CNMOH
Member
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Activity: 266
Merit: 10
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July 01, 2011, 04:09:54 PM |
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I managed to overclock to 1000 Mhz with default voltage, but I'm guessing this isn't particularly stable. I went back down to 775 Mhz again after a few minutes, didn't exactly feel safe to overclock that much when I barely have any experience overclocking.  |
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malevolent
can into space
Legendary
Offline
Activity: 3472
Merit: 1721
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July 01, 2011, 04:20:42 PM |
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I doubt it would work for more than 5 minutes (or 10 min if you're lucky) at full load without a BSOD. 1 GHz is a a 30% overclock.
Do you know any O/C software which would allow to overclock HD 6850 and HD 6850? I also need voltage change option.
On msi afterburner I can't change voltages.
On ati tray tools - only HD 6850 (my 'main' GPU, used also for gaming) is detected, 5850 isnt.
On trixx - same as ati tray tools.
In CCC I cannot change voltages.
I know I could modify and flash a new BIOS, but I would like to avoid doing that.
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Signature space available for rent.
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mike85123
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July 01, 2011, 04:28:06 PM |
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How do we know you are using 5850? My miner working at about 285 can solve 6 hashes in under a minute sometimes (luck). Your 408 took 1.25mins to solve 6 hashes. Those numbers translate (I realize luck has a lot to do with it)?
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Tx2000
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July 01, 2011, 04:41:05 PM |
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I am able to get around 408 at 970 but my VRMs run too hot (since I have to up the voltage a bit). I have an old Twin Turbo (non-pro) in place of stock cooling but the stock ref plate isn't very efficient for the VRMs.  |
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BiggieJohn
Member
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Activity: 70
Merit: 10
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July 01, 2011, 05:01:07 PM |
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make popcorn on the heatsink ?
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PMC-1A11eCF2Rzqzy4PCrV9jabYv1fvYfmN2yc
Doge-D8KLtphcSB3qAkfjBdvceEMj9TJUiJrFd3
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Tx2000
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July 01, 2011, 05:02:18 PM |
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make popcorn on the heatsink ?
Haha pretty much. I'm almost think I could craft a poop chute for the popcorn to fly out into a bowl |
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SlaveInDebt
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July 01, 2011, 10:43:49 PM |
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I win.  |
"A banker is a fellow who lends you his umbrella when the sun is shining, but wants it back the minute it begins to rain." - Mark Twain
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Tx2000
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July 01, 2011, 11:06:16 PM |
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I win. Nice. What clocks? |
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SlaveInDebt
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July 01, 2011, 11:17:35 PM |
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1050/300
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"A banker is a fellow who lends you his umbrella when the sun is shining, but wants it back the minute it begins to rain." - Mark Twain
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teukon
Legendary
Offline
Activity: 1246
Merit: 1002
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July 01, 2011, 11:19:20 PM |
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1.2375V! That's pretty serious.
How are you cooling your voltage regulators?
Is this a reference 5850?
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SlaveInDebt
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July 01, 2011, 11:29:05 PM |
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Reference, mcw60 block, stock plate w/80mm fan mounted in vrm location. Crippled one already awaiting new smd capacitor for repair. Didn't have fan mounted on it. Considering piggy backing some capacitors for longevity.  |
"A banker is a fellow who lends you his umbrella when the sun is shining, but wants it back the minute it begins to rain." - Mark Twain
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PcChip (OP)
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July 02, 2011, 12:39:41 AM |
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Wow, that's quite impressive. What kernel were you using for that? If it wasn't the one that bitless updated several days ago, you can still get +3% performance out of it, and there is a newly optimized one that will be posted in a day or two that will add an additional 1%
Several questions:
1.) how do you check the VRM temp?
2.) could VRM temps be how I killed my brand new Sapphire 5830? I was running at 1.2v with 100% fanspeed, and it died after two weeks
3.) I noticed you said you were going to repair a broken 5850, how do you know what went wrong with it and what to replace? Do you think my 5830 could be fixed instead of trying to RMA it?
Thanks for beating the record I thought I set LOL
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Legacy signature from 2011:
All rates with Phoenix 1.50 / PhatK
5850 - 400 MH/s | 5850 - 355 MH/s | 5830 - 310 MH/s | GTX570 - 115 MH/s | 5770 - 210 MH/s | 5770 - 200 MH/s
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SlaveInDebt
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July 02, 2011, 12:58:01 AM |
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1. Not all pcb's have vddc phase temp. sensor's. You can always buy an IR gun cheap.
2. Could be, best to visually inspect the board.
3. The red square in the picture I posted shows the missing smd capacitor. It was originally still there cracked along with the solder. Card still works at stock clocks with 1v.
What exactly is wrong with the 5830, symptoms?
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"A banker is a fellow who lends you his umbrella when the sun is shining, but wants it back the minute it begins to rain." - Mark Twain
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lacedwithkerosene
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July 02, 2011, 01:30:11 AM |
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Live by the hash, die by the hash. You guys are asking for a fire.
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