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E7400 @ 1066mhz vs E6550 @ 1333mhz

post #1 of 12
Thread Starter 
When I built my computer ~2 years ago I made a mistake when buying a CPU compatible with my motherboard. My motherboard only has a Front side bus speed of 1066mhz, and my CPU has a front side bus speed of 1333mhz. Basically this means my CPU cannot run at full speed because my motherboard wont allow it to.

I found this CPU on newegg that has a FSB of 1066mhz, which matches my motherboard. It is an Intel Core 2 Duo E7400 2.8ghz. The CPU I have now is an Intel Core 2 Duo E6550 2.33ghz, but it only runs at 1.87ghz because of my motherboard.

My question is, is the E7400 better? Its only $119 and matches the FSB of my motherboard, so it will run at 2.8ghz. This way I wont have to buy a new motherboard and basically rebuild my computer. Will the E7400 running at 2.8ghz with a FSB of 1066mhz be faster than my E6550 @ 2.33ghz with a fsb of 1333mhz?
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post #2 of 12
I'm loving my E7400 currently, just bought it also. I'm leaving it at 3.5Ghz for now but I had it stable at 4Ghz for a couple of hours. Just got worried about it being set that high and I didn't really notice a difference going from 3500 to 4000Mhz

Also, have you tried going into your CMOS Setup and changing the FSB to 1333?
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Mira
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post #3 of 12
I think you should get a better board. That way you won't have to worry about it. Then if you want to after, get a better CPU.
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post #4 of 12
Thread Starter 
so basically to make a long story short


MY MOTHERBOARD NOW = FSB of 1066mhz
MY CPU NOW = 1.87 w/ FSB of 1333mhz

the E7400 = 2.8ghz FSB of 1066mhz

Will it be better to upgrade my CPU to the E7400 and match the FSB speeds of 1066? or upgrade my mobo and run the E6550 at full speed wich is 2.33ghz
My System
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CPUMotherboardGraphicsRAM
Intel Core 2 Duo E6550 ASUS P5VD2-VM SE eVGA 9800GTX+ 512MB PCI-E 2GB Corsair DDR2 667 
Hard DrivePower
160GB Western Digital Rosewill 550WATT 
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My System
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CPUMotherboardGraphicsRAM
Intel Core 2 Duo E6550 ASUS P5VD2-VM SE eVGA 9800GTX+ 512MB PCI-E 2GB Corsair DDR2 667 
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160GB Western Digital Rosewill 550WATT 
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post #5 of 12
Thread Starter 
Quote:
Originally Posted by Dobbie View Post
I think you should get a better board. That way you won't have to worry about it. Then if you want to after, get a better CPU.
true
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160GB Western Digital Rosewill 550WATT 
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My System
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CPUMotherboardGraphicsRAM
Intel Core 2 Duo E6550 ASUS P5VD2-VM SE eVGA 9800GTX+ 512MB PCI-E 2GB Corsair DDR2 667 
Hard DrivePower
160GB Western Digital Rosewill 550WATT 
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post #6 of 12
Does that ASUS board support overclocking?

If it does then change the FSB from 266 (1066) to 333(1333) it's just that simple. If not then... well get a better board! I see a ton of them for $40 to $50 on newegg. Would be better than replacing the CPU imho.
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Intel Core 2 Quad Q8400 EP45-UD3L ATI Radeon HD 6950 Crucial Ballistix Tracer 
Hard DriveOptical DriveCoolingOS
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Sony 46" + LG 32" Logitech G15 Silverstone ST60F 600W VoodooPC Rage D:100 
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Mira
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R a z a N e u n
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CPUMotherboardGraphicsRAM
Intel Core i5 2400S ASRock Z77 Extreme 4 AMD Radeon R9 390 Crucial Ballistix Tracer 
Hard DriveHard DriveOptical DriveCooling
Samsung SSD 850 Pro 256GB Western Digital WD50000LPLX LG BR/DVD/CD Burner Air Nation 
OSMonitorMonitorMonitor
Windows 10 Home RCA 32" 1080p RCA 32" 1080p LG 32" 1080p 
KeyboardPowerCaseMouse
Cooler Master Devastator II Ultra 1000w PC Voodoo Rage Cooler Master Devastator II 
Mouse Pad
Custom 
CPUMotherboardGraphicsRAM
Intel Core 2 Quad Q8400 EP45-UD3L ATI Radeon HD 6950 Crucial Ballistix Tracer 
Hard DriveOptical DriveCoolingOS
1TB Western Digital LiteON DVD+-RW ArcticCooling CPU | 4x 80mm Case Fans Windows 7 Ultimate (64bit) 
MonitorKeyboardPowerCase
Sony 46" + LG 32" Logitech G15 Silverstone ST60F 600W VoodooPC Rage D:100 
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post #7 of 12
Get the new mobo and overclock that chip. I have one of those at 3.8 stable at only 1.3 volts.

EDIT: Wait, nope, wrong chip. Sorry lol. It's the e6300 I have.

Still, I would get a better motherboard, better investment and it will be fun to oc your chip.
Edited by chevymeister - 12/3/09 at 11:24am
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post #8 of 12
Thread Starter 
Quote:
Originally Posted by Modki View Post
Does that ASUS board support overclocking?

If it does then change the FSB from 266 (1066) to 333(1333) it's just that simple. If not then... well get a better board! I see a ton of them for $40 to $50 on newegg. Would be better than replacing the CPU imho.
nah I cant OC the FSB at all. Its competely blanked out in bios
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core 2 Duo E6550 ASUS P5VD2-VM SE eVGA 9800GTX+ 512MB PCI-E 2GB Corsair DDR2 667 
Hard DrivePower
160GB Western Digital Rosewill 550WATT 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core 2 Duo E6550 ASUS P5VD2-VM SE eVGA 9800GTX+ 512MB PCI-E 2GB Corsair DDR2 667 
Hard DrivePower
160GB Western Digital Rosewill 550WATT 
  hide details  
Reply
post #9 of 12
Thread Starter 
so you guys think it would be better to get a mobo with a faster fsb and keep the cpu I have now? vs keeping my mobo and upgrading the CPU to one that also has a fsb of 1066

I just upgraded my video card from an evga 7600GT to an evga 9800GTX+ so my CPU is bottlenecking right now
Edited by falleNX33 - 12/3/09 at 11:39am
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core 2 Duo E6550 ASUS P5VD2-VM SE eVGA 9800GTX+ 512MB PCI-E 2GB Corsair DDR2 667 
Hard DrivePower
160GB Western Digital Rosewill 550WATT 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core 2 Duo E6550 ASUS P5VD2-VM SE eVGA 9800GTX+ 512MB PCI-E 2GB Corsair DDR2 667 
Hard DrivePower
160GB Western Digital Rosewill 550WATT 
  hide details  
Reply
post #10 of 12
The board will keep holding you back. If you get a better board you can run your chip at stock or OC a little or a lot. But if you get a new chip, you might not be able to run it at it's full speed because of the board.

In short, get a new board
Intel Build
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Xeon E3-1230 V2 Dell T110 board Hynix 32GB 4X8GB DDR3 2RX8 1866MHz ECC unbuffered WD Red 3TB 
Hard DriveOSCase
TOSHIBA 3TB FreeNAS 11.0-U2 Dell Power Edge T110 
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Intel Build
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FreeNAS box
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CPUMotherboardRAMHard Drive
Xeon E3-1230 V2 Dell T110 board Hynix 32GB 4X8GB DDR3 2RX8 1866MHz ECC unbuffered WD Red 3TB 
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