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jamieb81
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April 11, 2014, 02:26:47 PM |
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Good tip yes ^^^^
That would be nice to hear about that script indeed.
Fifo buffers are off, have mine runing for a while now and no crashes on Win8 laptop with 10 port Aurico usb hub
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ZiG
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April 11, 2014, 06:35:41 PM |
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Guys...don't be fooled...
You are replacing R139...27k with higher value...47k to 51k... NOT R52...
R52 is in the Feedback Loop of the Voltage regulator...
Refer to the schematics...
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jamieb81
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April 11, 2014, 07:00:43 PM |
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Well whatever it is, IT WORKS  |
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Blueman666
Member
 Offline
Activity: 108
Merit: 10
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April 11, 2014, 11:37:18 PM |
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Guys...don't be fooled...
You are replacing R139...27k with higher value...47k to 51k... NOT R52...
R52 is in the Feedback Loop of the Voltage regulator...
Refer to the schematics...
More likely to be R64 on the diagram as it matches the 33K value measured on the board but there is obviously some difference between the circuit diagram we have access to and the actual unit as the resistor we are changing seems to be labelled R52. You are correct in saying that R52 on the diagram would not change DVDD as that is concerned with transient response of the circuit. The pins SET0 to SET3 look as thought they give some software selectable voltages but the highest resistor value there is 36K so that is not of great use unfortunately. |
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Ferris419
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April 11, 2014, 11:43:00 PM |
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i did Wolfey's mod 49.9k resistor on 3 units and all are running stable at 1200mhz 510.7khs i got 11 more to do i think i may do them tonight! |
Bitcoin is gonna hit 100K usd
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wolfey2014
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April 11, 2014, 11:47:49 PM
Last edit: April 12, 2014, 12:19:53 AM by wolfey2014 |
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Guys...don't be fooled...
You are replacing R139...27k with higher value...47k to 51k... NOT R52...
R52 is in the Feedback Loop of the Voltage regulator...
Refer to the schematics...
Thought I mentioned that earlier, in here somewhere..... Thought it was obvious on the schematic but obviously it is labled as R52 on the pcb, so it is correct to say 'replace R52, obviously...sorry if I forgot to mention that, way back when.... The actual 'current' pcb matching schematics don't exist as far as I know. Thought everyone else could see that too. No one's being 'fooled' though, since the mod works labled as advertised.  |
I Modify Miners Professionally! PM me for details!
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wolfey2014
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April 12, 2014, 12:18:03 AM |
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OK just got my resistors today, I undid the previous 2 solder mods and put on this one. At 1000mhz i don't seem to be accepting any shares, also using 0 Watts measured with the Kilowatt. Any ideas?   Double check the continuity with your DVM.. The inside solder point looks open... Solder it to one or the other points next to each other. They are the same connection on the pcb as one was for a capacitor next to R52 Always double check. It really sounds like your resistor is not in circuit. |
I Modify Miners Professionally! PM me for details!
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jamieb81
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April 12, 2014, 12:19:22 AM |
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I would also advise to turn your resistors towards the exterior, less chance to touch the heatsinks
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wolfey2014
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April 12, 2014, 12:20:40 AM |
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I would also advise to turn your resistors towards the exterior, less chance to touch the heatsinks
Yes, I concur! Good point Jamie! |
I Modify Miners Professionally! PM me for details!
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Zor
Newbie
Offline
Activity: 21
Merit: 0
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April 12, 2014, 12:33:28 AM |
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If your green LED blinks but never the red double-check the soldering ... you're not gonna be submitting shares if that's the case.
I've done mine and had to re-do two and noticed the LED deal. I was like 100% positive I didn't have a bad soldering job on one. Nah, I did. lol
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Zor
Newbie
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Activity: 21
Merit: 0
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April 12, 2014, 12:45:04 AM |
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I had original modded GS unit running at 1200 overnight, generated around 20 HW errors. Not too terrible.
I just got done modding the rest ... naturally the last one gave me the most trouble because I was becoming comfortable and rushing things.
Got them all going at 1175 and gonna see how many if any HW errors I get in the morning.
I've got 5 units going. Modding all 5 was like gaining 1.5 GS units. Awesome. =)
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wolfey2014
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April 12, 2014, 01:08:39 AM |
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I had original modded GS unit running at 1200 overnight, generated around 20 HW errors. Not too terrible.
I just got done modding the rest ... naturally the last one gave me the most trouble because I was becoming comfortable and rushing things.
Got them all going at 1175 and gonna see how many if any HW errors I get in the morning.
I've got 5 units going. Modding all 5 was like gaining 1.5 GS units. Awesome. =)
Excellent! Good work! |
I Modify Miners Professionally! PM me for details!
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bcajes
Newbie
Offline
Activity: 46
Merit: 0
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April 12, 2014, 03:33:05 AM |
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Has anyone tried just using a sharp nail clipper/scissor to remove the resistor? Simple, quick and sweet!
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simon66
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April 12, 2014, 03:34:53 AM |
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I've been running 2 modded GDS and 2 unmoddeded for 2 days 3 hours and 10 mins.
Here are my specs
Unmodded units
Grid 1)
Freq: 900
Accepted: 13550
Rejected: 221
HW: 0
Grid 2)
Freq: 900
Accepted: 13740
Rejected: 606
HW: 1
Modded Units
Grid 3)
Freq: 1138
Accepted: 13190
Rejected: 270
HW: 942
Grid 4)
Freq: 1213
Accepted: 12882
Rejected: 152
HW: 8
I mean, I am definetly getting more at 900Mhz than the OC units and this is a 2 day run!
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Ferris419
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April 12, 2014, 04:21:03 AM |
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I've been running 2 modded GDS and 2 unmoddeded for 2 days 3 hours and 10 mins.
Here are my specs
Unmodded units
Grid 1)
Freq: 900
Accepted: 13550
Rejected: 221
HW: 0
Grid 2)
Freq: 900
Accepted: 13740
Rejected: 606
HW: 1
Modded Units
Grid 3)
Freq: 1138
Accepted: 13190
Rejected: 270
HW: 942
Grid 4)
Freq: 1213
Accepted: 12882
Rejected: 152
HW: 8
I mean, I am definetly getting more at 900Mhz than the OC units and this is a 2 day run!
Hmmm I've modded 3 of my units and they have been running over 12 hours continuously at 1200mhz with 0 hw on all 3. 510.7kh/s each . |
Bitcoin is gonna hit 100K usd
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jamieb81
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April 12, 2014, 04:27:03 AM |
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I've been running mines at 1100Mhz and also got 0HW errors since modded +12H ago
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usao
Legendary
Offline
Activity: 1109
Merit: 1000
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April 12, 2014, 05:19:27 AM |
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Ive been running 10 modded pods at 1150, 0 HW errors in 24 hours.
Having to fiddle with pool and miner settings though, having trouble getting the share rate higher, although the hash rates are quite good.
Still trying to sort that out, no definitive answer yet as to why the pool-side share rates are poor. Im getting plenty of accepted shares reported on the miner side.
Any thoughts on that?
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wolfey2014
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April 12, 2014, 12:57:18 PM |
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Has anyone tried just using a sharp nail clipper/scissor to remove the resistor? Simple, quick and sweet!
Yes, definitely tell people how to risk breaking their PCB and or bricking their pods....nice going |
I Modify Miners Professionally! PM me for details!
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CryptKeeper
Legendary
Offline
Activity: 2044
Merit: 1055
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April 12, 2014, 02:43:55 PM |
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Don't try this at home, kids:  I've tried to mine BTC with a volt-modded unit...  It seems to me that FB23 and FB24 are gone, does anybody has the specs? Maybe I can replace them. |
Follow me on twitter! I'm a private Bitcoin and altcoin hodler. Giving away crypto for free on my Twitter feed!
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