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Older system not overclocking as before

H

Hardball

Limp Gawd
Joined
Jul 24, 2002
Messages
175
I recently added memory to an older system I have and it will no longer run at the overclocked settings that it has had for the past 5+ years. The motherboard is a Gigabyte GA-8INXP, which uses the E7205 chipset with ICH4. The cpu is an Intel Northwood 2.66Ghz (20x133fsb stock) that I have had mildly overclocked to 3Ghz (20x150fsb) for several years. The memory was 1GB (4 sticks/ 2 matched sets of Corsair 256MB LL 2-2-2-5) until I upgraded to G.SKILL 2GB (2 x 1GB) 184-Pin DDR SDRAM DDR 400 (PC 3200) Dual Channel Kit Desktop Memory Model F1-3200PHU2-2GBNS yesterday.

I ran Memtest86+ on both sticks of G.Skill individually as well as together and they passed everything with no errors. When I tried to set the fsb to 150, it hard locked the bios. It will not run at this setting anymore. I thought that having all 4 dimm slots filled was more stressful to a system than just 2 of them. Does the density of each stick (1GB/stick versus 256MB/stick) have any bearing on this?
 
Ram speed is already well below what they are rated for. This G.Skill is rated to do a 200mhz fsb with 2.75v at timings of 2.5-3-3-6. I am at a 133fsb and I guess because it's so low, CPU-Z is reporting the timings at 2.5-2-2-5. It will run at this fsb, but once I try to take it to a 150fsb, where the cpu and old ram has run for years, it locks up hard, requiring a clearing of the cmos. There is also no settings in bios for ram/fsb dividers or any way to set the timings of the ram manually.
 
Oh dang, I was going to suggest loosening the timings but it looks like you can't do that. Maybe it's time for a better board. ;)
 
It seems like the timings set themselves automatically depending on what fsb is being run. CPU-Z reports timings currently of 2.5-2-2-5, but under the spd tab in CPU-Z it shows the rating of 2.5-3-3-6 at 2.7v, but that is for fsb 200. I know this motherboard and cpu can handle low timings because the prior ram was Corsair LL with timings of 2-2-2-5, which this rig has run at for several years.
 
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