Yea, we lost app 100K a day with Rammie moving but thats life.
The work still gets done and we get a bigger challenge!;)
Printable View
I was thinking about the following for a sub-$500 quad crunching rig. The only things missing are a cpu f/hs and a case. But I've got stock fans I could use and the case should be something creative. I don't know if I'm going to do it, but I'd like to hear ideas and suggestions. Let me know if you think it should go in it's own thread.
Athena Power AP-MP4ATX40 MicroATX 400W Power Supply - Retail
WINTEC AMPO 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit
Open Box: GIGABYTE GA-G31MX-S2 LGA 775 Intel G31 Micro ATX Intel Motherboard
Intel Core 2 Quad Q6600 Kentsfield 2.4GHz LGA 775 Processor Model HH80562PH0568M - OEM
SYBA SY-IDE2SDMMC IDE to SD/MMC Adapter - Retail
A-DATA Turbo 8GB Secure Digital High-Capacity(SDHC) Flash Card Model TurboSD SDHC 8G -
It only puts out 400watts, but that's more than enough for Q6600 at 3ghz and 2 gig of ram. Plus, no hard drive. The whole package should be able to fit into a large shoe box.
and I'd be curious to know how long a 24/7 cruncher would run before it hits the multiple writes limit on the flash.
I know this probably doesn't fit the standard "quality" PSU, but I use them exclusively.[40+ applications] And yes they will run a quad 24/7:D
http://www.newegg.com/Product/Produc...82E16817182087
I agree with that statement. Look at this list of power supplies though.... All are in computers that I put together and all but one are running 24/7. Not all of the computers are mine and one isn't crunching due to very, very slow dial up.
4 - PC P&C (one 425 that's ~ 4 years old, one 610, and two 750's) <crunching
2 - PC P&C 470's
1 - Enermax Noisetaker II 600 watt <crunching
2 - ??? that are ~300 watts (originally came in Dell computers!) <crunching
I doubt that many people would think of the power supplies that come in Dell computers when they think of quality power supplies, but those two have been crunching 24/7 for ~18 months. They were free so I used them with the intention of buying better power supplies later.... Both are powering P4's - one at 3.4GHz and one at 3.8GHz. They still work so I haven't replaced them.
Thanks for the input everyone.
I would also be interested in knowing about any multiple write limits.
Here's what I got from Wikipedia
From Wikipedia Flash Memory entryQuote:
Another limitation is that flash memory has a finite number of erase-write cycles (most commercially available flash products are guaranteed to withstand 100,000 write-erase-cycles for block 0, and no guarantees for other blocks[citation needed]). This effect is partially offset by some chip firmware or file system drivers by counting the writes and dynamically remapping the blocks in order to spread the write operations between the sectors; this technique is called wear levelling. Another mechanism is to perform write verification and remapping to spare sectors in case of write failure, which is named bad block management (BBM). With these mechanisms in place, some industry analysts[1] have calculated that flash memory can be written to at full speed continuously for 51 years before exceeding its write endurance, even if such writes frequently cause the entire memory to be overwritten. This figure (51 years) involved a worst-case scenario using specific data parameters and should not be confused with a particular "shelf life" for a flash memory device. The bottom line is that a typical user using a commercial device, such as a camera, with a flash drive will probably not wear out the memory for the effective life of the camera. However, it - like any other hardware component - can fail. Anyone using flash memory (and any other medium) for critical data would be well advised to backup the data to another device (preferably of a different medium). Many have found it very fast and reliable for 'read-only' operating systems such as thin clients and routers.
So depending on what safeguards the manufacturer has built into the package, worst case scenario should be an approximate life of 51 years under continuous use.
Not a good day today :(
Twilight.... 51 years is a bit mroe than our uses. 51 years is somone who takes pictures (1 write operation ??)
For a OS USB you may be talking about many many more... Have a look at how many write operations you hardrive makes while running WCG and damn all else.
or am I talkin crap!!! :rolleyes:
Easynews 4,608,157
XtremeSystems 4,582,323
Ouch.
Feeling the loss of RAMMIE I see :(
That's a few days in a row...we need to pick it up now.
sorry team, I was busy with the job and the new house.. didnt realise one of my power outlet was tripped and took my 4 quads down with it. My fault !!