Windows 7: New CPU - Slower than Old one.

Hi.

New member incoming!



I was hoping some of you could help me with a problem I got.
Lets begin!

A couple of days ago I upgraded my Graphic card and my CPU, went up from a intel core duo2, 2.66ghz, e6750 to an intel core duo2 3ghz, e7400.
At first I had this nice problem where my BIOS was saying I had my CPU running at 98*C, which I knew was wrong. After a bit googling I found a Beta version update for my Abit ip35-e socked 775 motherboard that a lot of people said fixed the problem, And it did!
So, everything was running nice and smooth and I was happy!
But, of course, There had to be another problem.
My New CPU, which supposedly is better, is running slower then my old one. Not when comparing the GHz , but simply when I'm playing a game.
I get lag and even msn messenger is lagging a bit.
Note, I have only tried 1 game , All points bulletin, and browsing \ chatting at the same time, this is when the lag occurs.
There has been no change whatsoever to the system itself, beside the CPU change.
So my little brain tells me that there most be something wrong with the CPU, the settings or something..
(Note, the GPU was changed a couple of days earlier, with no problems during my old CPU)

Since I don't have much knowledge in this area, I kneel down in the dust, begging for help! =D

Help?!

Thanks for all replies!

sometimes not connecting the CPU well might cause such problem, once i took off my Core 2 Quad CPU to clean the motherboard and after putting it back to it's place and turning on the computer i found a lag in performance, which made me take it off and reputing it back to it's place and that's when i got the performance back.
or it might be because of hardware conflict, but both CPU's are intel so don't think that's the problem.
Try taking it off then putting it back, if it didn't help reset bios settings, so it detects the new CPU and configure CPU settings according to your new one.

Could you list the RAM modules you are using and your FSB speed? Reason for asking is looking at the compatibility charts for your mobo and while the e7400 is a 775 socket CPU it is not listed in the Abit CPU compatibility reports but the e7200 and e7300 are. Just trying to see if you have anything that can pinpoint something, thanks.

Did you reset the bios after installing the new processor? Usually requires that for it to be detected and funtion properly.

Also the E7400 isn't that much faster than your older E6750,

Intel® Core™2 Duo Processor E7400 (3M Cache, 2.80 GHz, 1066 MHz FSB) with SPEC Code(s) SLB9Y, SLGQ8, SLGW3

Intel® Core™2 Duo Processor E6750 (4M Cache, 2.66 GHz, 1333 MHz FSB) with SPEC Code(s) SLA9V

140 MHz isn't much faster to the point of likely to not be noticeable short of running benchmarks. Also the E6750 has 1 MB more of L2 cache over the E7400 which can offset the small increase in clock speed. One more, the E6750 runs on a FSB of 1333 MHZ were the E7400 is at 1066 MHZ.

I did reset, yes =)
I don't understand much of that cache and FSB things.
Basically, Which is better for gaming? ^^


How do I find out what FSB speed my RAM is using? (or what fishnbanjo, said)

Thanks.

This will show that info,

CPUID - System & hardware benchmark, monitoring, reporting

All things considering, the E6750. And it would even be better with a very small overclock to bring it up to the same speed as the E7400. Hate to say it but that CPU swap was side-grade and not an upgrade, and could even be considered a down-grade as with the exception of a slightly higher clock speed the E6750 is the better CPU on the rest of the specs.

RAM first:
DDR2, 5Gb, 408MHz, FSBRAM 2:3. Is that enough info?

But what if I overclock the new CPU?
And, this is sad news

Thanks again

I tried. But it didn't help

Thanks for the tips.

408MHz? What manufacturer is the RAM Here is the tested compatible RAM for that mobo according to Abit Universal abit > Test Report

If you can return the e7400 I would and overclock the e6750 like stormy said.

Got 3x Kingston at 1gb each and 1x Twin-Mos at 2gb.
(At least that's what I remember)

I guess I should do that then =)
Clocking the e7500 won't help at all compared to a clocked e6750?