Discussion in 'World Community Grid (WCG)' started by Chicken Patty, Feb 20, 2009.
AND save about 70w in the process as well!
*7770's use about 80w under full load
so could i drop down to buying a 500-550watt PSU for a i5 2400/7770 with 3hdd and a ssd?
How does the 5770 compare to the 7770 for WCG? I seen 3 5770 for sale in the B/S/T forum?
what kind of ppd and power draw do they have compared to the 7770?
Also, does an x4 slot on the board make much difference in PPD output?
I'd say 2 5770s would roughly equal one 7770, and the 7770 would consume less power than one of them. GCN is a much superior architecture for distributed computing than the old VLIW 4/5 cards are. I think Brandon said that he got ~16K on my old overclocked 5770.
PCIe slot bandwidth shouldn't matter too much. PCIe 2.0 x4 should be fine.
Most likely- not certain on Intel power usage but would use the same size psu on a 1045T/880G setup with the same gpu and other components
A 7770 will output around 35k ppd- not sure what a 5770 will output but a single 7770 should be a significant increase over 3x 5770's.....
and as Jstn7477 said- an X4 slot won't slow down the card too much- ran 2 cards in a AMD 970 x16/x4 board and had no difference
++++1111 on that one Norton!
I would really like to see what the new 7790 puts out on WCG.
One of my machines at work runs an overclocked 7970, GTS 450 and an i7-3770K @ 4.3GHz on a Rosewill RG530 80% efficiency PSU and takes about 400-430w at the wall under crunching load (gaming load would probably cause too much stress on the PSU as a 7970 with a healthy OC can consume anywhere from 16-20 amperes when gaming). Modern desktop hard drives consume less than 1 ampere from the 12v/5v rails.
5770 would net to about 1/5 of a 7770 I think. My 6570 finishes a single WU in 15 minutes, a 5770 could run 2 at the same speed I think. A 7770 finishes 4 WU in 10 minutes.
So I guess I don't have to change my Asrock to a x8/x8 mb. That would be nice since I'm really short on money.
Passed 80K barrier is nothing compared to the rest of crunchers but means soon I will have the Cruncher Badge.
Up and running
Awesome man!!!!!!! You will have the cruncher badge in no time man.
Well I just checked my "piggy bank" and I need around 100€ to buy an I5 3570K+Cooler to add to my rig.Thank god Easter is near and I'm at the age that you receive a lot of money from godparent .
Got some free time tonight, will be putting together my A8 APU/6970 Lightning mITX build. Consolation prize to myself for not winning some hardware in the Feb Challenge
I have an i3 and a HD7950 running on an old (not even 80+ certified) Antec 300w PSU. 550w would easily run an i5-2400 and three HD7770s (I have a 130w i7-920 @ a 45% OC and three HD7770s on a 650w)
too late! I think I got a decent price on it though.
My linux crunchers are giving me lots of grief. They constantly get stuck and for some reason VNC sometimes connects and sometimes it doesn't. I seriously have to consider setting them with Windows. I'll be on the lookout for some low capacity (30-40GB) laptop drives or something.
Note, the Havik 140 is way too big of a cooler to try and install on a mITX board in a mITX case like the Node 304 Good news is the 6970 Lightning fit with about 1/4" to spare.
Was going for the extra full look, but Ill have to move to something smaller or an AIO now.
Yeah good info there [Ion]. I'm thinking of getting something like 500-600 for whatever system I build, to be able to expand in the future. I need to power an i3/i5 and the 7770, but I'm hoping to get an i5 and another 7770 or 7850/7870 in the mix. Should work nicely.
Currently the AMDx2 and 7770 are running on an old Raidmax 500w psu. I had a Raidmax before for a good while without issues, but since its old and only has 1 pcie, I need something with more. I don't want to use adapters, but I may have to if I expand a bit
Canadian member alert 7750 DDR 3 $65 after $35 instant and $10 mail in http://www.canadacomputers.com/product_info.php?cPath=558&item_id=056200
If anyone can chime in whether DDR 3 will hurt wu performance i could possibly order one later on today
My impression is that memory bandwidth has all but no impact on WCG--so I think you'd be just fine w/ that vs a GDDR5 version
linux cruncher 2 is down. It warned about an error in the system, rebooted and now it won't start. I just get a blank screen with the mouse pointer on it. Definitively going with Windows now.
Okay guys, I am going to officially list this here first. Come Saturday morning if no one here in the crunching team wants it, I will list it in the main F/S thread. If it doesn't sell by Monday morning I am just going to keep it. I can also sell this combo as a complete rig minus OS. Crunchers get first dibs and a discount. Pm me if interested.
Mobo: Gigabyte GA-MA790X-UD4P
Cpu: Phenom II x4 970 BE
Memory: 4gb ddr2 800
Gpu: nvidia 8800GTS
As stated I can also sell as complete rig minus OS for a additional cost.
Octanux and Blueline just finished their last WUs. Shutting down.
got the i5 2400 overclocked to 3.4 from 3.1ghz. Default voltage too after some tinkering.
Good to hear, I'm looking for something along those lines too.
I actually just ordered an XFX Pro550w
It's $55 after code, and then there's a $15 MIR, though I know never to count on. But I opted to go for this as I need a newer, more reliable PSU for the secondary cruncher, as this 500w Raidmax is getting older.
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