Cant use DDR Ram at full speed?????!

dreaminginred · 09-08-2007, 12:38 AM

Hi,
The other day I contacted Corsair support about my RAM because I was experiencing system freezes several times a day. I ran memtest and it was just error after error after error. They told me that because im using more than 2 modules I have to reduce the bus to ddr333. This fixed my problem but why must I do that?? The modules are rated as ddr400 (pc3200). Will the slower memory speed affect my system performance or anything??
Any comments greatly appreciated!
Thanks

BTW This is a quote from the email
memory must be slowed down so that the memory controller can "keep up" with the memory
I assumed the memory controler would be built to handle the speed of the ram?? No?? I dunno

...
Im so confused

nffc10 · 09-08-2007, 12:41 AM

Is it in the rig in your sig?

Normally you can run the ram at full speed for anything 2 modules or below. But if your using 3 or more, the speed has to be lowered to allow all the data to pass through. (If that makes sence!)

StrangleHold · 09-08-2007, 12:52 AM

Have you checked in the bios to see if it running the ram at the right voltage, I,ve ran 4 sticks on that same board at 400.

dreaminginred · 09-08-2007, 02:23 AM

Thanks for replying.

Yep its the rig in my sig.I kind of understand(I think!)If the ram opperates so fast with more than 3 modules there could be data lost, hence the syste freezes and errors etc....... Thats just my little theory. Im probably completly wrong tho!!!

Well the only info i have about the RAM is this

Storage Capacity 512 MB
Upgrade Type Generic
Memory
Type DRAM
Technology DDR SDRAM
Form Factor DIMM 184-PIN
Memory Speed 400 MHz ( PC3200 )
CAS Latency CL2.5
RAM Features Unbuffered
Expansion / Connectivity
Compatible Slots 1 x memory - DIMM 184-PIN

and the latency 2.5-3-3-8-2T

The 3 sticks are identical.

Im not sure what I should be checking in the BIOS. When i look at all the RAM stuff in the bios theres alot of stuff in it about changin latency and timings etc
IM not sure what the voltage should be so I really dont know what to be changing. Im afraid I might damage something if i go changing settings not knowing what I am doing!!

any idea what volatage I should be running the ram at??
Thanks alot

StrangleHold · 09-08-2007, 02:31 AM

Depends on what model Corsair they are, but most are 2.5 or 2.6 volts, but some are up to 2.7

09-08-2007, 12:38 AM	#1 (permalink)
dreaminginred Bronze Member Join Date: Mar 2005 Location: Waterford, Ireland Age: 20 Posts: 68	Cant use DDR Ram at full speed?????! Hi, The other day I contacted Corsair support about my RAM because I was experiencing system freezes several times a day. I ran memtest and it was just error after error after error. They told me that because im using more than 2 modules I have to reduce the bus to ddr333. This fixed my problem but why must I do that?? The modules are rated as ddr400 (pc3200). Will the slower memory speed affect my system performance or anything?? Any comments greatly appreciated! Thanks BTW This is a quote from the email memory must be slowed down so that the memory controller can "keep up" with the memory I assumed the memory controler would be built to handle the speed of the ram?? No?? I dunno ... Im so confused __________________ Athlon X2 4200+ @ 2.2ghz Epox EP-9NPA+ ULTRA 1.5gb Corsair (3x512) geForce 6600gt 256mb ddr2 NorthQ 4775-400BULK, ATX 400W 160gb Hitachi SATA2 Acer 17inch lcd, Polaroid 32inch HD LCD (Dual setup) Windows Vista Home Premium Benq DVD R/RW w/lightscribe,Club 3d ZAP 1001 tv anddddddd Sony VAIO n38e/w

09-08-2007, 12:41 AM	#2 (permalink)
nffc10 Diamond Member Join Date: Oct 2006 Location: Nottingham Age: 18 Posts: 1,659	Is it in the rig in your sig? Normally you can run the ram at full speed for anything 2 modules or below. But if your using 3 or more, the speed has to be lowered to allow all the data to pass through. (If that makes sence!) __________________ Amd Athlon 64 X2 6000+ @ 3.31GHz Asrock AM2NF3 VSTA 2gb Corsair XMS2 PC5400 Sapphire X800XL 256MB AGP 80GB Maxtor Hard Drive OCZ StealthXtreme 600W PSU Pictures - 1 2 3 http://www.treasuretrooper.com/438654

09-08-2007, 12:52 AM	#3 (permalink)
StrangleHold VIP Member Join Date: Nov 2005 Posts: 11,178	Have you checked in the bios to see if it running the ram at the right voltage, I,ve ran 4 sticks on that same board at 400. __________________ NZXT Apollo S75QB 750W ZEROtherm FZ120 Phenom II 720BE (X4) 3.5GHZ. Gigabyte GA MA790X UD4P G Skill DDR2 1066 4GB. MSI GTS 250 Seagate 7200.12 500GB. Welcome to the show

09-08-2007, 02:23 AM	#4 (permalink)
dreaminginred Bronze Member Join Date: Mar 2005 Location: Waterford, Ireland Age: 20 Posts: 68	Thanks for replying. Yep its the rig in my sig.I kind of understand(I think!)If the ram opperates so fast with more than 3 modules there could be data lost, hence the syste freezes and errors etc....... Thats just my little theory. Im probably completly wrong tho!!! Well the only info i have about the RAM is this Storage Capacity 512 MB Upgrade Type Generic Memory Type DRAM Technology DDR SDRAM Form Factor DIMM 184-PIN Memory Speed 400 MHz ( PC3200 ) CAS Latency CL2.5 RAM Features Unbuffered Expansion / Connectivity Compatible Slots 1 x memory - DIMM 184-PIN and the latency 2.5-3-3-8-2T The 3 sticks are identical. Im not sure what I should be checking in the BIOS. When i look at all the RAM stuff in the bios theres alot of stuff in it about changin latency and timings etc IM not sure what the voltage should be so I really dont know what to be changing. Im afraid I might damage something if i go changing settings not knowing what I am doing!! any idea what volatage I should be running the ram at?? Thanks alot __________________ Athlon X2 4200+ @ 2.2ghz Epox EP-9NPA+ ULTRA 1.5gb Corsair (3x512) geForce 6600gt 256mb ddr2 NorthQ 4775-400BULK, ATX 400W 160gb Hitachi SATA2 Acer 17inch lcd, Polaroid 32inch HD LCD (Dual setup) Windows Vista Home Premium Benq DVD R/RW w/lightscribe,Club 3d ZAP 1001 tv anddddddd Sony VAIO n38e/w Last edited by dreaminginred; 09-08-2007 at 02:26 AM.

09-08-2007, 02:31 AM	#5 (permalink)
StrangleHold VIP Member Join Date: Nov 2005 Posts: 11,178	Depends on what model Corsair they are, but most are 2.5 or 2.6 volts, but some are up to 2.7 __________________ NZXT Apollo S75QB 750W ZEROtherm FZ120 Phenom II 720BE (X4) 3.5GHZ. Gigabyte GA MA790X UD4P G Skill DDR2 1066 4GB. MSI GTS 250 Seagate 7200.12 500GB. Welcome to the show

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