DDR II question

Hi!
Since memory is so cheap nowadays I'm considering an upgrade to 4gb, however I'm still using the 32-bit version of winxp pro and I've heard there are some issues regarding 4gigs of ram or more and 32-bit operating systems. Anyone care to enlighten me?
At the moment I'm using 2x1024 Corsair XMS2-5400 TWIN2X2048-5400C4 4-4-4-12, but two packs of Corsair XMS2-6400 TWIN2X2048-6400C4 4-4-4-12 Xtreme 2x1024MB costs next to nothing at the moment. Is it worth removing the two old 5400 modules replacing them with the 6400 version or just go with another 2x1024 5400 package?

Quote
I've heard there are some issues regarding 4gigs of ram or more and 32-bit operating systems. Anyone care to enlighten me?
There are no real issues with 4Gb of memory and 32bit operating systems. What you mean is the 32bit limitation itself.
Read here: https://forum-en.msi.com/index.php?topic=108883.0

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Hello!
Do you mean u201CDigital Asset Managementu201D?
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[http://aiokeh.wdf.sap.corp:50000/SAPIKS2/contentShow.sap?_SCLASS=XDP_STRUCT&_SLOIO=D0DB9A23B742429792D11D20C961B862&IWB_INDUSTRY=SOLMANCONT&TMP_IWB_TASK=PREVIEW&RELEASE=2007&LANGUAGE=EN&_SEQNUM=0|http://aiokeh.wdf.sap.corp:50000/SAPIKS2/contentShow.sap?_SCLASS=XDP_STRUCT&_SLOIO=D0DB9A23B742429792D11D20C961B862&IWB_INDUSTRY=SOLMANCONT&TMP_IWB_TASK=PREVIEW&RELEASE=2007&LANGUAGE=EN&_SEQNUM=0]
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OK,
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Quote from: bsh on 25-January-07, 19:54:59
just found on wikipedia, that ddr operates at 2.5V.
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Hello
At first I want to say that is always recommended to use compatible and tested RAM modules. On this way you will be sure it will work well and without any problems.
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I have a couple of questions about memory.
1. I have Corsair TwinX XMS PC3200 2x1024mb. settings at corsair are 2.5-3-3-6 It shows up in speedfan as:
FSB-DRAM................. CPU/14
CAS# Latency............. 3.0 clocks
RAS#to CAS# Delay..... 3 clocks
Ras Precharge...............3 Clocks
Cycle Time(tras).............7 Clocks
Bank Cycle Time(trc)......10 clocks
DRAM IdleTimer.............16 clocks
I just want to run it at a better speed to get the most out of it.
2. Plus my MB supports DDR266/333/400 modules. Does that mean I can't run the 433/500/533/550?
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Now how can I get better speeds out of the memory? Would it be better to buy a different memory to achieve my goals?

MR,
You Stated :
1. I have Corsair TwinX XMS PC3200 2x1024mb. settings at corsair are 2.5-3-3-6 It shows up in speedfan as:
FSB-DRAM................. CPU/14
CAS# Latency............. 3.0 clocks
RAS#to CAS# Delay..... 3 clocks
Ras Precharge...............3 Clocks
Cycle Time(tras).............8 Clocks
Bank Cycle Time(trc)......12 clocks
DRAM IdleTimer.............16 clocks
I just want to run it at a better speed to get the most out of it.
The figures you posted above look more like figure you would have gotten from the memory Tab in CPU Z. Can you confirm this and also post all figures you get form the SPD Tab in CPU Z regarding your RAM. If you RAM setting are set to Auto in BIOS then the above figures are really your SPD readings that were applied by your BIOS Auto RAM setting feature. The CPU Z SPD read out will confirm this. If this is the Case then you have Corsair TwinX2048-3200 Kit (3-3-3-8) vice the TwinX2048-3200C2 (2--3-3-6*) with the asterix annotated as [* These parts support 2-3-3-6 latency on Intel platforms, and 2.5-3-3-6 latency on AMD platforms.]. Double check your product number on your RAM and pay perticular attention to letters and/or numbers after TwinX2048-3200....> Check result against listing the TwinX matched pair memory listing here http://www.corsairmemory.com/corsair/xms.html
Plus my MB supports DDR266/333/400 modules. Does that mean I can't run the 433/500/533/550?
You could likely use memory up to DDR 500 on your board if you wanted to OC and leave ram at 1:1 ratio. Higher memory would be wasted money.
Good luck,

Memory question (yes, another)

ok, i have ddr memory rated for 200mhz, and the fsb of my processor is 333 mhz.
i was reading a thread on a corsair forum from a guy with my exact motherboard
AND memory, but a slightly lesser processor (a-xp 2500 vs a-xp2800, both barton333)
he says:
1. Motherboard is as started above: MSI K7N2 Delta2-LSR
2. Processor is Athlon XP 2500+ Barton (333 FSB)
3. CPU multiplier is unlocked so I can alter RAM to 200FSB and lower multiplier to
ensure that speed is the same.
4. Running Dual Channel mode.
i know a 1:1 ratio is best, but to GET such a ratio, is there any practical difference
between:
a) setting the memory to 166 and the ratio (manually) to 1:1
b) setting the memory to 200 and reducing the multiplier, as he's done.
i assume by multiplier he means the fsb:dram ratio - please correct me if i'm wrong.
thanks!

Quote from: Grayone on 27-December-05, 03:39:37
Having the cpu multiplier unlocked does nothing to affect the memory speed.
after closer reading, he says he's running at 2.3 ghz, by changing his processor to
200mhz * 11. something i definitely don't want to do even with my 2800!
with that in mind, i think he meant in terms of upping the processor to match
the memory (or buying faster memory to match his already oc/d psu) - and my
question is moot, for my purposes. (feel free to delete!)

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When it does post, it comes up as DDR333 Single channel, 64-bit, mem clock is 166Mhz
Tcl:2, Trcd:2, Tras:5 Trp:5 (2t Timing)
DDR Dimm at rows 0 1 4 5
How can I get the machine to recognize both sticks of dual-sided memory?
Maybe a stupid question, but....if the BIOS version has something to do with this problem, is there some way to update it before I install windows XP?
I guess I can use 1 stick and install everything, and then add the other after I flash the BIOS (if this is a BIOS related problem).

Quote
Originally posted by andygold
Well, I updated the BIOS to version 1.3 (up from 1.1), and the machine posts and seems to run fine now....althought the first boot after installing the second stick of ram, the machine came up into Windows, and when I tried to access a website, I got a BSOD, which flashed onto the screen for a split second, dissappeared, and the machine powered off(dropped dead). It's been running for a few hours since the reboot, with no problems.
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My other settings, although I don't know if they're good or not are:
High Performance mode = manual
aggressive timing = disabled
dynamic overclocking = disabled
spread spectrum = disabled
HT freq. = 5x .....is this the multiplier x fsb to =1000?
cool 'n' quiet = disabled
adjust CPU ratio = "startup"...not sure if this good
adjust CPU VID = 1.500v ...not too sure about this either
CPU voltage = "by CPU vid" not sure on this either
AGP voltage = 1.50v ....not sure once again
ACTUALLY I"M NOT SURE OF ANY OF THE ABOVE, BUT I GLEENED MOST OF IT FROM THIS FORUM
For info purposes, I have the 2 sticks in DIMM slots 3 and 4, with slots 1 and 2 empty. The Zalman fan sits on top of slot 1, and although when the DIMM is in this slot it does not hit the CPU's heatsink, I didn't want to keep bending the fins, during the removal and replacement. I don't believe there's any problem with this memory placement, acording to the mobo manual, but if anyone disagrees, please post.
So, to sum up, it appears the updated BIOS seems to have solved the problem!
Any thoughts on the rest of the settings would be greatly appreciated!!!!
"Bending the fins"??? Do you mean it is NOT possible to use the memories in slots 1, 2 with this Zalman without bending the fins? Oh god... I just got one today...
MSI and everybody recommend the memory at slots 1,2.

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