Message boards :
Number crunching :
The Attack of the Killer 58.7s
Message board moderation
Previous · 1 · 2 · 3 · 4
Author | Message |
---|---|
Morten Ross Send message Joined: 30 Apr 01 Posts: 183 Credit: 385,664,915 RAC: 0 |
Hi Richard, Thanks for your input! I got my Dell December 8, but if I had only waited one more week I would have been able to choose 667 MHz DIMMS :-( Dell USA had 667 MHz DIMMS for weeks before we got them here in Norway. Alas... My servicetag: 7CPMM2J. And yes, it's 2 x 2GB @ 533MHz DIMMs. As for the OS-es - It's all the same machine. I have tested with the preinstalled XP x64, Vista x64 (shown as Longhorn) and the current Vista 32 bit version. They all show the same dismal performance. I have yet to test XP 32, but feel that is a tragic downgrade just to get more crunching. I'm currently running Microsoft drivers throughout, but will install the DELL Vista drivers on the current 32 bit Vista and see if it makes a difference. Morten Hi Morten, Morten Ross |
Calculator Send message Joined: 30 Sep 06 Posts: 62 Credit: 69,529 RAC: 0 |
2x2gb?? you could run a complete squashed linux in ram. i bet that runs like hell |
Richard Haselgrove Send message Joined: 4 Jul 99 Posts: 14650 Credit: 200,643,578 RAC: 874 |
Hi Richard, Strange - mine was built in Europe (Ireland) on November 25, but I got the 667s no problem (unless they had a supply problem with the 2GB). I see that the Dell UK and USA websites are currently offering a choice of 533 or 667, but for Norway they're only offering 667 - maybe they've discovered the problem? Might be worth talking to technical support, or even claiming a manufacturing fault under warranty. My servicetag: 7CPMM2J. And yes, it's 2 x 2GB @ 533MHz DIMMs. You went for better hard disks, and I upgraded the graphics card, but I don't see much else that could affect speed - and neither of those should slow you down so much. As for the OS-es - It's all the same machine. I have tested with the preinstalled XP x64, Vista x64 (shown as Longhorn) and the current Vista 32 bit version. They all show the same dismal performance. I have yet to test XP 32, but feel that is a tragic downgrade just to get more crunching. I think that's your best bet, unless you can get them to replace the RAM under warranty. |
Ivailo Bonev Send message Joined: 26 Jun 00 Posts: 247 Credit: 35,864,461 RAC: 2 |
I think we have another Core RAC Killer... look at this markodude[ocforums] Core(TM)2 Quad CPU@3420 CPU Time Credit 1800-1900 12.53 P.S. Mine OCed E6400 work thiese units for around 2200-2300 sec. |
Morten Ross Send message Joined: 30 Apr 01 Posts: 183 Credit: 385,664,915 RAC: 0 |
I've got new (4x1 GB) 667 MHZ DIMMs, and the performance increase is more than 100%! Int: 5325 MB/s Float: 5333 MB/s Bandwidth efficiency: 63% (estimated) Was (2x2 GB 553 MHz): Int: 1914 MB/s Float: 1928 MB/s Bandwidth efficiency: 22% (estimated) I wonder what difference using all 8 DIMM sockets will make...? Anyone with all 8 slots used (with 667 MHz FB-DIMMs) are welcome to show us the Siesoft benchmarks :-) Morten Ross Morten Ross |
littlegreenmanfrommars Send message Joined: 28 Jan 06 Posts: 1410 Credit: 934,158 RAC: 0 |
Pending credit HOME PARTICIPATE ABOUT COMMUNITY YOUR ACCOUNT STATISTICS Result ID Claimed credit 443847229 62.41 444237023 61.24 447349741 62.22 447349745 62.21 447349820 62.21 447349824 62.21 449136108 12.51 Pending credit: 385.00 HOME PARTICIPATE ABOUT COMMUNITY YOUR ACCOUNT STATISTICS Copyright © 2007 University of California Never mind the 58.7's! How about those? I seem to have got a truckload of 60+ WUs for my 2.8 rig (overclocked to 3.045 Gig) |
Richard Haselgrove Send message Joined: 4 Jul 99 Posts: 14650 Credit: 200,643,578 RAC: 874 |
I've got new (4x1 GB) 667 MHZ DIMMs, and the performance increase is more than 100%! That looks more like it! Did you have to buy the RAM yourself, or did you persuade Dell to swap it? |
©2024 University of California
SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.