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new processor slow

T

TooManyPuppies

n00b
Joined
Nov 10, 2004
Messages
18
Howdy. I installed a new processor to replace the 2.0a that my comp came with with a 2.6c. I mainly did this for CS: Source, which never ran that good but was mildly acceptable, but now it runs worse. Both chips are northwood, except the 2 ghz had a 400mhz fsb with no HTT and the new 2.6 has a 800mhz fsb w/ HTT. My MoBo is an Intel D845GRG. It usually runs at around 30*C. I'm not really sure what I can do to fix what needs fixin', or where the problem may lie.
I appreciate any and all help. I will gladly provide more info if needed. Thanks.
 
The problem is with the motherboard...it's simply not recent enough. I'm not sure if it even officially supports a 2.6C....I'm pretty sure it does not support HT either. The 2.6C, being an 800MHz FSB processor, isn't being fully taken advantage in a 400MHz FSB board. In fact, with a 13x multiplier, it would be running at 1.3GHz, so its understandable your performance is worse. You will need to get a 865pe board to use the full potential of the processor....they can be had for quite cheap these days.
 
I had suspected that may be the case, so now that brings up the question of how easily I could install a new motherboard. Would it be possible to change out a motherboard without it affecting any other components of my system? Would I need to reformat my HD? Thanks for the replies.
 
nothing should change if you change the parts, if it fits, it'll probably work

you *can* change a mobo without having to format...but it's usually the best way to go if you do
 
may have to if the chipset is that big of a change. I would recommend it anyways, that way winblows gets a chance to "customize" itself to that board...and you wont have to run driver scrubber / cleaner a few times...
 
It shouldn't be too hard. The only possible change I can foresee is with the memory...but I'm not sure what kind of memory you have in there so it might still work. Hit up Newegg and see what's there. You should do some research on whatever board you decide to go with.
 
Actually, the D845GRG will only support 400MHz and 533MHz FSB CPUs. And using an "unsupported" 800MHz FSB CPU - the 2.6c - will result a 1.3GHz or a 1.73GHz clock speed, which is slower than your previous 2.0a.

Furthermore, Intel-made motherboards have an unusual twist of their "jumperless" CPU settings - in the form of a single jumper. If you simply left it in "Normal" position when you replaced your 2.0a with a 2.6c, your FSB is locked at 100MHz ("400MHz" effective), thus resulting in that slow 1.3GHz clock. You will need to move that jumper to the "BIOS CONFIG" position in order to redetect your CPU speed. (In this case, since the D845GRG does not support a 200MHz/"800MHz" FSB, it will return an "UNSUPPORTED CPU" error message.)
 
Thanks for all the help, you guys are right on. My only other concern is I have a micro ATX board, but I wonder if its possible to fit an ATX in the same case, I suspect its not, though, since it only has room for 3 pci and 1 agp.
Formating is something I'm willing to do, but I'm not the only one who uses this comp, so I'm not sure how happy they'd be to lose all their info. I geuss I'll have to do a lot of backing up. If I don't reformate, what are some problems that could arise? Now I'm off to find some info on motherboards, any recomendations?
Thanks
 
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