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#1
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Help with RAM???
I'd like to purchase my RAM by tomorrow (November 02, '04), so can
someone help me? Can someone tell me if the following PC4000 RAM will be good for my computer. The new RAM, for the time being, would run in conjunction with my old PC3200 RAM, which I know isn't as good as the PC4000 RAM so you don't get the full effects of the PC4000 RAM. But eventually I'd like to replace the PC3200 RAM with the same PC4000 RAM. Despite that, can you tell me if I'd get the full effect of the PC4000 RAM even if that's all I had? thanks!!!!!! Here is my info. The RAM I think I'd like to buy is: Kingston Hyperx Series 184 Pin 512MB DDR PC-4000 Speed: DDR500(PC4000) Type: 184 Pin DDR SDRAM Error Checking: Non-ECC Registered/Unbuffered: Unbuffered Cas Latency: 3-4-4-8-1T Support Voltage: 2.6V Bandwidth: 4.0GB/s Organization: 64M x 64 -Bit According to PC Wizard my Memory Controller Information is: Memory Controller : SIMM, DIMM Number of connectors : 4 Max. Module Size : 512 MB Max. Memory Size : 2048 MB Supported Speed : 70ns, 60ns Supported Voltages : 3.3v Error Detection Method : 64-bit ECC Error Correction Capability : Unspecified Current/Supported Interleave : 1-way/1-way Type : DDR-SDRAM PC3200 (200 MHz) CPU: Pentium 4 - 3.2GHz voltage - 3.3V Mainboard: (ASUSTek Computer Inc.) Product - P4SD-VX Videocard: Radeon 9800 Pro Misc: Bus Speed - 798 MHz front side AND memory bus speeds - 199.5 MHz p.s. Let me know if you need more info |
#2
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I upgraded my computer to 2 Gigs of RAM, up from 1 GIG of RAM.
But when I open applications, it doesn't seem to open faster. Is this an unreasonable expectation that an application like Netscape or Photoshop would open faster with 2 Gigs of RAM as opposed to 1 Gig of RAM? What performance boosts should I expect with the new RAM? Thanks! |
#3
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"Jaxim" wrote in message...
I upgraded my computer to 2 Gigs of RAM, up from 1 GIG of RAM. But when I open applications, it doesn't seem to open faster. Why, were you expecting them to? Is this an unreasonable expectation that an application like Netscape or Photoshop would open faster with 2 Gigs of RAM as opposed to 1 Gig of RAM? You shouldn't expect a hugely noticeable difference in application load times just because you've increased the amount of system memory. After a certain point there is a law of diminishing returns involved here. If you had gone from 128MB to 2GB of installed memory you certainly would have spotted a difference, but with a gig onboard already you are past the point where adding even more is going to result in easily noticeable boosts. Sure, there will be a little less page file use in certain circumstances, but the main determinator of application load speed, especially for apps with loads of plugins and support files like Photoshop, is the speed at which the files can be read off hard disk, and to a certain extent the prefetching techniques that are used. What performance boosts should I expect with the new RAM? Where you would see more of a difference is if you do a lot of multitasking, or work with large files in applications like Photoshop. In other words, you need to do stuff that *uses* lots of memory in order to see a difference. Look in the Performance tab of Task Manager to see what your memory usage is. I daresay it's normally less than 1024MB. It's also fair to say that to see the biggest benefit you'll have to tune your virtual memory, paging executive and related settings. Keeping the Windows executive in memory instead of swapping it would give you a boost, but you'll then have less memory for use by apps like Photoshop. As with all things it's a case of tuning for the work you do, rather than magically expecting improvements. -- Richard Hopkins Cardiff, Wales, United Kingdom (replace .nospam with .com in reply address) The UK's leading technology reseller www.dabs.com Get the most out of your digital photos www.dabsxpose.com |
#4
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It's also fair to say that to see the biggest benefit you'll have to tune
your virtual memory, paging executive and related settings. Keeping the Windows executive in memory instead of swapping it would give you a boost, but you'll then have less memory for use by apps like Photoshop. As with all things it's a case of tuning for the work you do, rather than magically expecting improvements. I also have 2GB of Ram. I have this much for large image manipulation. How do I force the windows executive into memory like you said above? I have turned off the virtual memory setting as I rarely go above 512MB usage in normal conditions, except when working with my large images + then I don't get too close to my 2GB limit. |
#5
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"Gareth Tuckwell" wrote in message...
How do I force the windows executive into memory like you said above? If you've completely disabled virtual memory, you may already have done this by default. However, if you open the registry editor, and (assuming you're running Win2k or XP), navigate to: HKEY_LOCAL_MACHINE\System\ControlSet001\Control\Se ssion Manager\Memory Management Once you're there, you'll see the DisablePagingExecutive option. Setting this to a hex value of 1 will force the executive to remain in memory. There are some other options you may want to tweak in the Memory Management settings, not least the SecondLevelDataCache option, which XP uniformly fails to set by itself. Set the value for this as your L2 cache size in hex. IOW for 512K of L2 enter 200 in this field. -- Richard Hopkins Cardiff, Wales, United Kingdom (replace .nospam with .com in reply address) The UK's leading technology reseller www.dabs.com Get the most out of your digital photos www.dabsxpose.com |
#6
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Richard Hopkins wrote:
"Gareth Tuckwell" wrote in message... How do I force the windows executive into memory like you said above? If you've completely disabled virtual memory, you may already have done this by default. However, if you open the registry editor, and (assuming you're running Win2k or XP), navigate to: HKEY_LOCAL_MACHINE\System\ControlSet001\Control\Se ssion Manager\Memory Management Once you're there, you'll see the DisablePagingExecutive option. Setting this to a hex value of 1 will force the executive to remain in memory. There are some other options you may want to tweak in the Memory Management settings, not least the SecondLevelDataCache option, which XP uniformly fails to set by itself. Set the value for this as your L2 cache size in hex. IOW for 512K of L2 enter 200 in this field. That value being "0" does not mean Windows 'failed' to set it. A 0 entry tells XP to get the cache size from the HAL abstraction layer. A non zero value is only useful if it can't get it from the HAL (defaults to 256K) and, then, only for old processors. http://support.microsoft.com/default...b;EN-US;183063 "it is only useful for computers with direct-mapped L2 caches. Pentium II and later processors do not have direct- mapped L2 caches." Yes, I know that's an NT4 article. It's the same in later versions, except they're more emphatic about it. http://www.microsoft.com/resources/d...c_evl_fhcj.asp Evaluating Memory and Cache Usage Do not change the SecondLevelDataCache entry Some third-party sources have erroneously reported that modifying the SecondLevelDataCache registry entry in HKEY_LOCAL_MACHINE\System\CurrentControlSet \Control\Session Manager\Memory Management can enhance system performance. The second level (L2) cache is recognized by the operating system and is fully utilized regardless of the setting of this parameter. http://www.microsoft.com/resources/d...n-us/29938.asp SecondLevelDataCache HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management Data type Range Default value REG_DWORD 0 | 1-Cache size (in bytes) 0 (256 KB) Description Specifies the number of bytes in the secondary processor cache, also known as the L2 cache. The value of this entry is used only when the Hardware Abstraction Layer (HAL) cannot detect the L2 cache. |
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