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| Thread ID: 83336 | 2007-09-28 00:31:00 | Very slow memory bandwidth (457mb/s) on Vostro 1400 | asubstitute (12850) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 595833 | 2007-09-28 00:31:00 | A Dell technician came to my house and replaced the motherboard due to a video error (this fixed the problem). But now, everything is so sluggish. I even reinstalled Vista to make sure that was not the cause. Here are the results of a benchmark. Results should be several times higher. What could be the cause? Of course, when the new motherboard was installed, all BIOS settings were wiped. Though, being a Dell, the available settings to the user are somewhat limited, so I can't see any settings relating to memory. What can/should I do? SiSoftware Sandra Benchmark Results Int Buff'd iSSE2 Memory Bandwidth : 461 MB/s Float Buff'd iSSE2 Memory Bandwidth : 421 MB/s Results Interpretation : Higher index values are better. Windows Experience Index Current Chipset/Memory : 1.7 Results Interpretation : Higher index values are better. Performance vs. Power Chipset(s)/Memory Power : 9.8 W Int Buff'd iSSE2 Memory Bandwidth Assignment : 455 MB/s Scaling : 449 MB/s Addition : 470 MB/s Triad : 471 MB/s Data Item Size : 16 byte(s) Buffering Used : Yes Offset Displacement Used : Yes Bandwidth Efficiency : 7% (estimated) Float Buff'd iSSE2 Memory Bandwidth Assignment : 425 MB/s Scaling : 407 MB/s Addition : 423 MB/s Triad : 430 MB/s Data Item Size : 16 byte(s) Buffering Used : Yes Offset Displacement Used : Yes Bandwidth Efficiency : 7% (estimated) Performance Test Status Run ID : KING on Friday, 28 September 2007 at 11:39:29 a.m. Platform Compliance : Win32 x86 Memory Used by Test : 512MB NUMA Support : No SMP (Multi-Processor) Benchmark : No Total Test Threads : 1 Multi-Core Test : Yes SMT (Multi-Threaded) Benchmark : No Processor Affinity : P0C0T0 System Timer : 14MHz Page Size : 4kB Use Large Memory Pages : No Features SSE Technology : Yes SSE2 Technology : Yes SSE3 Technology : Yes Supplemental SSE3 Technology : Yes SSE4.1 Technology : No SSE4.2 Technology : No EMMX - Extended MMX Technology : No SSE4A Technology : No HTT - Hyper-Threading Technology : No Chipset 1 Model : Dell Computer Corp Mobile PM965/GM965/GL960 Express Processor to DRAM Controller Revision : A13 Front Side Bus Speed : 4x 200MHz (800MHz data rate) Width : 64-bit Maximum Bus Bandwidth : 6400MB/s (estimated) Logical/Chipset 1 Memory Banks Bank 0 : 512MB DDR2-SDRAM 5.0-5-5-15 (tCL-tRCD-tRP-tRAS) CR1 Bank 1 : 512MB DDR2-SDRAM 5.0-5-5-15 (tCL-tRCD-tRP-tRAS) CR1 Bank 4 : 512MB DDR2-SDRAM 5.0-5-5-15 (tCL-tRCD-tRP-tRAS) CR1 Bank 5 : 512MB DDR2-SDRAM 5.0-5-5-15 (tCL-tRCD-tRP-tRAS) CR1 Channels : 2 Memory Bus Speed : 2x 333MHz (666MHz data rate) Width : 64-bit Performance Acceleration Technology : No Memory Controller in Processor : No Maximum Memory Bus Bandwidth : 10656MB/s (estimated) Performance Tips Notice 5405 : System bandwidth appears FSB limited. Attempt to increase FSB. Notice 5008 : To change benchmarks, click Options. Notice 5004 : Synthetic benchmark. May not tally with 'real-life' performance. Notice 5006 : Only compare the results with ones obtained using the same version! Warning 5400 : Low bandwidth efficiency (advanced). Check memory timings and settings. Tip 2 : Double-click tip or press Enter while a tip is selected for more information about the tip. |
asubstitute (12850) | ||
| 595834 | 2007-09-28 00:49:00 | is the memory configured differently. as in was it in dual channel before and now in single channel mode? as that would make a diff. although im assuming you have a pair of matched memory sticks. if ya have just the one. my comment is useless. |
Cho (12330) | ||
| 595835 | 2007-09-28 00:55:00 | I have two 1gb sticks, but as I said, Dell's BIOS setup is pretty limited, so I'm not sure where I can change that setting. | asubstitute (12850) | ||
| 595836 | 2007-09-28 01:04:00 | usually depending on how many memory slots there are. to run in dual channel you put a stick in slot 0/1 and 4/5 or 2/3 and 6/7 which would be slot 1 and 3 or 2 and 4. but if it only has 2 memory slots i wouldn't know. as far as i know going into dual channel is not a manual option. does it automagically :P on most non-store bought. I.E as in custom built stuff. the RAM slots are colour coded to tell ya which ones are used to enable dual channel. probably not the best answer. im sure others may know something. |
Cho (12330) | ||
| 595837 | 2007-09-29 06:33:00 | i23.tinypic.com There is some information about my computer. Do the memory timings look normal? Is there anything there that leaps out at anyone? Tom. |
asubstitute (12850) | ||
| 595838 | 2007-10-03 16:44:00 | My name is John, and I work as a support analyst at Dell headquarters. I checked over that screenshot, and your memory is currently running in dual channel mode, and everything looks as it should, from what I can see. If things are running sluggish, even though you did reinstall, my first instinct is to follow the following troubleshooting steps to see if anything improves: support.microsoft.com John Dell Customer Advocate |
DellCA (12293) | ||
| 595839 | 2007-10-04 01:55:00 | WTH? We have Dell customer reps posting here? I din't know there were any based in NZ :lol: | beeswax34 (63) | ||
| 595840 | 2007-10-04 02:10:00 | WTH? We have Dell customer reps posting here? That’s another first for PressF1 first it was ISP staff from the different ISP’s & now Dell staff :eek: :waughh: I din't know there were any based in NZ :lol: That guy is not from NZ he is from the USA. |
stu161204 (123) | ||
| 595841 | 2007-10-04 03:32:00 | It's nice they are taking the time to try to help. | LiquidSolidity (1589) | ||
| 595842 | 2007-10-04 03:57:00 | Ah, Dell HQ, I see now. PressF1 is truly world renowned:D | beeswax34 (63) | ||
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