F5F Stay Refreshed Power Users Overclocking FSB : DRAM Ratio!

FSB : DRAM Ratio!

FSB : DRAM Ratio!

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OmegaKiri
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197
07-06-2021, 06:42 AM
#1
Hi, guys! I just set up a legacy rig [asus p5q-e + Q9650 + 2x2GB 800MHz] but it’s running slow. It takes longer to boot, there’s a black screen before the welcome screen appears, and my mouse freezes briefly at times. Even though all BIOS settings are default or auto, I noticed my FSB to DRAM ratio is 11:13—didn’t know if that was normal. So I decided to underlock my RAM to 667MHz, which seems to fix the issue completely. My PC is now much faster, especially during boot, and the mouse no longer freezes. My Vcore dropped from 1.152v to 1.032v (idle), and my temperature dropped by about 5°C at stock speed.

I’m curious—does the DRAM auto setting give less voltage than the RAM needs at 800 MHz, or is it just a stable 1:1 ratio for these old systems? Thanks for your help!
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O
OmegaKiri
07-06-2021, 06:42 AM #1

Hi, guys! I just set up a legacy rig [asus p5q-e + Q9650 + 2x2GB 800MHz] but it’s running slow. It takes longer to boot, there’s a black screen before the welcome screen appears, and my mouse freezes briefly at times. Even though all BIOS settings are default or auto, I noticed my FSB to DRAM ratio is 11:13—didn’t know if that was normal. So I decided to underlock my RAM to 667MHz, which seems to fix the issue completely. My PC is now much faster, especially during boot, and the mouse no longer freezes. My Vcore dropped from 1.152v to 1.032v (idle), and my temperature dropped by about 5°C at stock speed.

I’m curious—does the DRAM auto setting give less voltage than the RAM needs at 800 MHz, or is it just a stable 1:1 ratio for these old systems? Thanks for your help!

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M
MegaDisco
Senior Member
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352
07-06-2021, 07:39 AM
#2
It was good that it worked out. Previously, maintaining even ratios was more crucial. This adjustment involved reducing memory speed and increasing the CPU multiplier.
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M
MegaDisco
07-06-2021, 07:39 AM #2

It was good that it worked out. Previously, maintaining even ratios was more crucial. This adjustment involved reducing memory speed and increasing the CPU multiplier.

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Z
Zehky
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52
07-08-2021, 03:37 AM
#3
It was good that it worked out. Previously, maintaining even ratios was more crucial. This adjustment involved reducing memory speed and increasing the CPU multiplier.
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Z
Zehky
07-08-2021, 03:37 AM #3

It was good that it worked out. Previously, maintaining even ratios was more crucial. This adjustment involved reducing memory speed and increasing the CPU multiplier.

Reply
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