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6GB RAM is going slower than 4GB - any ideas?

post #1 of 7
Thread Starter 
Hey everyone. I've looked through the FAQ and posts and can't find an answer to the problem I'm having. Could anyone out there help me please? Basically I built a computer, using an Asus P6X58D-E LGA 1366 Intel X58 with an Intel i7 920 CPU. This is a triple channel RAM configuration, so I used 3 x 2gb RAM Modules (Corsair TW3X4G1333C9A DDR3 XMS3 1333Mhz 9-9-9-24 1.50V).

The only problem is that the 3 RAM modules were from an 8GB kit 4 x 2gb, designed for dual-channel computers. I took 3 sticks out, and left the other in the previous computer (now gone). I've researched it, and the general consensus is that this RAM is ideal for triple-channel configurations, such as mine, and that the kits are marketed as dual-channel and triple-channel purely for selling bundles together. The thread at http://www.overclock.net/intel-mothe...rk-triple.html seems to confirm this However, I might have misunderstood this greatly. My apologies if I have.

Whichever way, the computer recognizes the RAM fine if I put 1, 2 or 3 sticks in. However, the computer is far faster with just 2 sticks in as opposed to 3. I've put them in in different orders, and done various RAM tests, and they all test as being fine. So with the RAM seeming perfect, I'm thinking it's something else. Maybe something I need to configure in the BIOS? Or maybe they're hardwired to only work in dual mode?

I'm totally confused at this point. If anyone could shed any light on this it would be greatly, greatly appreciated!

Thanks everyone.

Lee
My System
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CPUMotherboardGraphicsRAM
Intel Core i7 920 ASUS P6X58D-E Quadro FX 3400 3 x 2GB Corsair 1333Mhz DDR3 
Hard DriveOptical DriveMonitorPower
WD 500gb SATA 2.0 Caviar Green Lite-On DVD Re-Writer Dell 2407WFP 24" Diablotek 650W 
Case
Ultra X-Blaster Mid-Tower 
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My System
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CPUMotherboardGraphicsRAM
Intel Core i7 920 ASUS P6X58D-E Quadro FX 3400 3 x 2GB Corsair 1333Mhz DDR3 
Hard DriveOptical DriveMonitorPower
WD 500gb SATA 2.0 Caviar Green Lite-On DVD Re-Writer Dell 2407WFP 24" Diablotek 650W 
Case
Ultra X-Blaster Mid-Tower 
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post #2 of 7
Hi and welcome to OCN.

Install the 3 sticks, turn on your rig and use CPU-Z memory tab for check if your RAM is running in tri-channel.
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The New One
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Ocing rig z97
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CPUMotherboardGraphicsRAM
6700k Gigabyte Z170X Ulta Gaming GTX 1080 HoF Mushking 4*4GB 
Hard DriveHard DriveHard DriveHard Drive
Crucial M4 Crucial M500 Itachi Desktar Itachi Desktar 
Hard DriveCoolingOSMonitor
Toshiba Raystorm Pro CPU Windows 10 Professional BenQ XL2420Z 
KeyboardPowerCaseMouse
Thermaltake Corsair AX1200i HAF X Thermaltake Saphira 
Mouse PadAudioOther
QCK Gamecome 780 APC 1500VA 
CPUMotherboardGraphicsRAM
Intel Core G3258 Gigabyte Z97X SOC Force ASUS GTX 760 Striker Platinum G.Skill TridentX 
Hard DriveCoolingOSOS
Crucial MX100 Extreme cooling Windows 7 Pro x64 Windows XP Pro SP3 x86 
Power
EVGA SuperNOVA 1300V G2 
CPUMotherboardGraphicsRAM
Phenom II X6 1090T Gigabyte 890FXA-UD5 ASUS GTX 760 Striker Platinum Crucial Ballistix Tracer 
RAMHard DriveHard DriveHard Drive
G.Skill Trident Crucial M4 Itachi Desktar Itachi Desktar 
Hard DriveHard DriveOptical DriveCooling
Crucial M500 Toshiba LG EK Supreme HF Full Nickel 
CoolingCoolingCoolingOS
Swiftech MCR-320QP Swiftech MCP655-D XSPC Reservoir Windows 7 Professional 
MonitorKeyboardPowerCase
BenQ XL2420z TT eSports Meka G1 Corsair AX1200i Cooler Master HAF X 
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post #3 of 7
Thread Starter 
Thanks for your reply. I'll give that a shot and then get back to you. Is that utility a program or something in the bios?

Thanks.

Lee
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 920 ASUS P6X58D-E Quadro FX 3400 3 x 2GB Corsair 1333Mhz DDR3 
Hard DriveOptical DriveMonitorPower
WD 500gb SATA 2.0 Caviar Green Lite-On DVD Re-Writer Dell 2407WFP 24" Diablotek 650W 
Case
Ultra X-Blaster Mid-Tower 
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Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 920 ASUS P6X58D-E Quadro FX 3400 3 x 2GB Corsair 1333Mhz DDR3 
Hard DriveOptical DriveMonitorPower
WD 500gb SATA 2.0 Caviar Green Lite-On DVD Re-Writer Dell 2407WFP 24" Diablotek 650W 
Case
Ultra X-Blaster Mid-Tower 
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Reply
post #4 of 7
Also check the latest BIOS... version 0602 I believe... It fixed some of my memory errors (was only detecting 4GB at times)
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2X OCZ Vertex 30GB RAID 0 Corsair H100 Win 7 Ultimate 64-bit S23A950D + 55" LED 240Hz 
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i7 970 @ 4GHZ Asus P6X58D-E 2X EVGA GTX 970 SC w/ACX 2.0 Cooler 6GB Corsair XMS3 CAS 7 1600Mhz 
Hard DriveCoolingOSMonitor
2X OCZ Vertex 30GB RAID 0 Corsair H100 Win 7 Ultimate 64-bit S23A950D + 55" LED 240Hz 
KeyboardPowerCaseMouse
Logitech G710+ Corsair AX 1200 Corsair Carbide Series Air 540 case Razor Deathadder 3500dpi 
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post #5 of 7
pls fill in in ur sig to make it a little easier for us to see.
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Server1 - Main
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Slow Coach
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CPUMotherboardGraphicsRAM
4790K Asus z97 Hero Gigabyte 980Ti 6gb Kingston Hyper X 2400 
Hard DriveHard DriveHard DriveCooling
M500 M500 OCZ ARC H100i 
OSMonitorMonitorMonitor
Windows 10 Enterprise  Prolite GB2488HSU Prolite GB2488HSU Prolite GB2488HSU 
KeyboardPowerCaseMouse
Razer Corsair AX860 Fractal Design R4 Razer Mamba 
Audio
Razer 
CPUMotherboardRAMHard Drive
1055T Gigabyte 990fx UD5 corsair 4 x 2 GiG 2 x 1 terabyte Western Black 
Hard DriveOptical DriveCoolingOS
3 x 500 gig WD Black Pix Fractal Design Fans x 2 Server 2012 
MonitorKeyboardPowerCase
mstsc mstsc 400 watt corsair Fractal Design R5 
MouseOtherOtherOther
mstsc EATON 5110 UPS StarView SV231UADVI KVM LSI controller card 4 port 
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post #6 of 7
That's a program that gives you all the basic info of your CPU, mobo and RAM. You can download it from here: http://www.cpuid.com/softwares/cpu-z.html

And you add your rig's details here: http://www.overclock.net/specs.php?do=addsystem
The New One
(19 items)
 
Ocing rig z97
(9 items)
 
 
CPUMotherboardGraphicsRAM
6700k Gigabyte Z170X Ulta Gaming GTX 1080 HoF Mushking 4*4GB 
Hard DriveHard DriveHard DriveHard Drive
Crucial M4 Crucial M500 Itachi Desktar Itachi Desktar 
Hard DriveCoolingOSMonitor
Toshiba Raystorm Pro CPU Windows 10 Professional BenQ XL2420Z 
KeyboardPowerCaseMouse
Thermaltake Corsair AX1200i HAF X Thermaltake Saphira 
Mouse PadAudioOther
QCK Gamecome 780 APC 1500VA 
CPUMotherboardGraphicsRAM
Intel Core G3258 Gigabyte Z97X SOC Force ASUS GTX 760 Striker Platinum G.Skill TridentX 
Hard DriveCoolingOSOS
Crucial MX100 Extreme cooling Windows 7 Pro x64 Windows XP Pro SP3 x86 
Power
EVGA SuperNOVA 1300V G2 
CPUMotherboardGraphicsRAM
Phenom II X6 1090T Gigabyte 890FXA-UD5 ASUS GTX 760 Striker Platinum Crucial Ballistix Tracer 
RAMHard DriveHard DriveHard Drive
G.Skill Trident Crucial M4 Itachi Desktar Itachi Desktar 
Hard DriveHard DriveOptical DriveCooling
Crucial M500 Toshiba LG EK Supreme HF Full Nickel 
CoolingCoolingCoolingOS
Swiftech MCR-320QP Swiftech MCP655-D XSPC Reservoir Windows 7 Professional 
MonitorKeyboardPowerCase
BenQ XL2420z TT eSports Meka G1 Corsair AX1200i Cooler Master HAF X 
MouseMouse PadAudioOther
TT eSports Saphira QCK+ Creative Sound Blaster Recon3D Fatal1ty Profess... Plantronics GameCom 780 
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The New One
(19 items)
 
Ocing rig z97
(9 items)
 
 
CPUMotherboardGraphicsRAM
6700k Gigabyte Z170X Ulta Gaming GTX 1080 HoF Mushking 4*4GB 
Hard DriveHard DriveHard DriveHard Drive
Crucial M4 Crucial M500 Itachi Desktar Itachi Desktar 
Hard DriveCoolingOSMonitor
Toshiba Raystorm Pro CPU Windows 10 Professional BenQ XL2420Z 
KeyboardPowerCaseMouse
Thermaltake Corsair AX1200i HAF X Thermaltake Saphira 
Mouse PadAudioOther
QCK Gamecome 780 APC 1500VA 
CPUMotherboardGraphicsRAM
Intel Core G3258 Gigabyte Z97X SOC Force ASUS GTX 760 Striker Platinum G.Skill TridentX 
Hard DriveCoolingOSOS
Crucial MX100 Extreme cooling Windows 7 Pro x64 Windows XP Pro SP3 x86 
Power
EVGA SuperNOVA 1300V G2 
CPUMotherboardGraphicsRAM
Phenom II X6 1090T Gigabyte 890FXA-UD5 ASUS GTX 760 Striker Platinum Crucial Ballistix Tracer 
RAMHard DriveHard DriveHard Drive
G.Skill Trident Crucial M4 Itachi Desktar Itachi Desktar 
Hard DriveHard DriveOptical DriveCooling
Crucial M500 Toshiba LG EK Supreme HF Full Nickel 
CoolingCoolingCoolingOS
Swiftech MCR-320QP Swiftech MCP655-D XSPC Reservoir Windows 7 Professional 
MonitorKeyboardPowerCase
BenQ XL2420z TT eSports Meka G1 Corsair AX1200i Cooler Master HAF X 
MouseMouse PadAudioOther
TT eSports Saphira QCK+ Creative Sound Blaster Recon3D Fatal1ty Profess... Plantronics GameCom 780 
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post #7 of 7
Thread Starter 
OK, I've added my specs now - sorry for not doing that already. I've looked in the Memory tab of CPU-Z and it does show it as being Triple. It shows the NB Frequency at 2138.2MHz (currently) and the DRAM Frequency at 534.5MHz - if either of those mean anything?
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 920 ASUS P6X58D-E Quadro FX 3400 3 x 2GB Corsair 1333Mhz DDR3 
Hard DriveOptical DriveMonitorPower
WD 500gb SATA 2.0 Caviar Green Lite-On DVD Re-Writer Dell 2407WFP 24" Diablotek 650W 
Case
Ultra X-Blaster Mid-Tower 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 920 ASUS P6X58D-E Quadro FX 3400 3 x 2GB Corsair 1333Mhz DDR3 
Hard DriveOptical DriveMonitorPower
WD 500gb SATA 2.0 Caviar Green Lite-On DVD Re-Writer Dell 2407WFP 24" Diablotek 650W 
Case
Ultra X-Blaster Mid-Tower 
  hide details  
Reply
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