Latest posts of: PcChip

Please tell me if I'm getting good efficiency:

I'm using two PSU's, one is titanium and one is just "80plus" (Corsair ax1200i , old Corsair tx850w)

four 480's, two 470's

I'm getting these speeds with 1180W at the wall:

is that decent or do I need to swap out that old PSU?

Asking:

PNY GTX570 - $240 Shipped
EVGA SuperClocked GTX570 - $255 Shipped

Will accept bitcoins or dwolla!

I was considering pulling my 7970 out of my main gaming rig and going back to SLI GTX570's, and putting the 7970 into the mining box which has 58xx's hashing away with the older SDK (the one that's faster)

Has anyone tested if the 7970 will play nice with the older Stream SDK ?

Upon a fresh restart of Phoenix 1.48 / 1.50 miner with PhatK Kernel, the load stays at 99% with maximum hashrate.

However during the course of several days it slowly degenerates from a straight line into first a small sine wave from 99-95%, then after a few more days it degenerates to a larger sine wave all the way down to 99-90%, which is wasting hashing power.

Restarting the miner resets it back to full load again.

(notice GPU1 has a large sine wave, the dip is where I killed it, and after restarting it's a flat line)

Anyone figured it out ?

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)

I've just seen what these cards will bring in (from completed listings on ebay) so I don't want to haggle much on the price, also due to recently being scammed on paypal I don't really trust it anymore so I'd like bitcoins or dwolla.

Asus CuCore 5770 - 220 MH/s @ stock voltage - $120
Asus CuCore 5770 - 211 MH/s @ stock voltage - $120
[unknown] 5850 with LARGE custom heatpipe heatsink, ramsinks, and vrm sinks - 350 MH/s @ stock voltage - $200
[unknown] 5850 reference heatsink, 400 MH/s @ 1.164v - $225

After seeing lots of lowball offers on the forums I'm doubting anyone is willing to pay what they're going for on ebay, so I'll probably list them tomorrow after work if nobody responds. For faster response times email me at mike dawson at g mail dot com [remove all spaces]

Hi guys,

I was searching for some information about a scam that was pulled on me two days ago; I sold one bitcoin on ebay, got paid with paypal and sent the coin, then immediately there was a claim filed and the money was taken away. The address I sent it to was 18HHRpghTbFcNb7zeEwBgSRp3UFq7cBFG5 , so I was looking through blockexplorer for info, googled one of the addresses my stolen bitcoin was sent to, and came up with NathanKBarrows from Hackforums.net

One of his posts mentioned a wallet stealer from their forums stole 25k BTC, and I thought I remembered someone here recently losing that many.

I'm not sure how helpful this information is, if at all, but I wanted to share it with the community.

I would have just linked to the forum post, but it requires a membership to that forum, so I used the google cache and took a screenshot:
https://i.imgur.com/jkV1F.png

I'm thinking about getting out of the bitcoin gig and have collected these so far:

5850 - 400 MH/s
5850 - 345 MH/s

5830 - 304 MH/s

5770 CuCore - Unknown MH/s
5770 CuCore - Unknown MH/s

Could anyone tell me what these cards are worth to the BitCoin community ?

*Edit* - For a fee I'd be willing to edit the BIOS of the cards so that they automatically run at their highest stable hashing speeds, so that a new user would only have to Plug-and-Play

Hey guys, I know that several people have already setup Bitcoin Shirt online shops, but they all use the same standard BitCoin Logo.

I actually made my own graphics for a shirt and this is my first product - please let me know your thoughts on it!

http://www.zazzle.com/bitcoinwear

https://i.imgur.com/zwqh9.jpg

Since I can easily make my design with 2-3 colors, there is a cheaper option to have them Screen Printed, but the minimum order is 12 shirts, and I don't have that to invest right now without knowing if anyone would be interested in them. I don't want to wind up with a box of bitcoin shirts on my desk for a year Cheesy

FYI: I'm also looking into Zazzle vs SpreadShirt vs Cafepress

I've read posts from several people that say they run multiple miners on each GPU, each connected to a different pool so that if one pool has problems, the hashing power shifts to the pool that is still operational, and they also get a small boost in total hashing power.

This sounded like a win-win situation for me, so I opened a connection to deepbit on both my GPU's as a backup if BTCGuild has more problems; after adding the two rates together it did indeed seem like there was little boost in total hashing power.

However, using btc-poolwatch.com I noticed lower total rates. Like, instead of ~800 MH/s it would report ~550 MH/s. I know they're estimates and they fluctuate, but it was just much lower than normal (especially considering the programs were reporting a slightly higher hashing rate)

Anyone have any experience with this method, or any ideas as to what the issue was in my situation?

Thanks!

I was thinking about trying to sell a few BitCoin shirts, but in order to get silkscreen shirts made, I have to buy a minimum of 12.

Obviously, I don't want to waste my money buying that many if nobody is interested, I can just setup an online shop like CafePress or Zazzle to sell them and that way I don't have to purchase any myself.

Would anybody be interested in buying a BitCoin shirt if I have them made?

This is what the front would look like:
https://i.imgur.com/X6WTs.jpg

and this would be on the back, with some text like "p2p cryptocurrency" or something similar
https://i.imgur.com/qgtQ4.jpg

Any thoughts?

After I saw bitcoins passed SEVENTEEN DOLLARS PER COIN, I fired up the miners that were previously unprofitable - the 8800GT, Core-i5, and (lol) even the Celeron

Here are 3 of my 4 Mining PC's (note two of them are via TightVNC)
https://i.imgur.com/zaaj5.jpg

I'll probably turn the celeron off in the morning when I wake up Grin

Just wanted to let you guys know that Sapphire recently patched TriXX to support voltage tweaks to the 5830's we all just got from newegg!

Please post your previous best hashrate on stock voltage, and your new best if you decide to try voltage tweaking!

What's the highest hashing speed you've ever seen from one of your connected workers?

Anyone ever seen 500 MH/s?

I'm assuming at the moment the highest single worker would be a watercooled overvolted overclocked 5870?

Or am I totally wrong and everyone is using multiminer to converge all workers into a single external worker thread? Would this be more efficient?

Ok, which one of you is spamming all the craigslist postings around the US for giving out 5870's to be used by people in exchange for their electricity?

It's already being discussed on lots of tech forums, people are trying to figure out what it's all about - speculating mass botnets, cracking md5 passwords, and other lollerskates subjects.

Is the AES encryption that's built into the latest Sandy Bridge chips similar enough to the SHA-256 that our miners are performing, that someone could write a miner specifically for the new intel chips?

Hi guys,

Just got into mining a few days ago (from the Reddit post), and I've been mining on my main video card (used for gaming & dual monitors) GTX570 (112.5 Mh/s),
but I am thinking about pulling my brother's old 4870 out of the closet and mining on that as well, however I do not know what to expect from trying to install and use
an AMD product for OpenCL alongside my main NVidia card with CUDA.

Has anyone ever experimented with this combination and had any success?

Any suggestions?

Thanks!