Jump to content

Lowering ram divider causes problems.. WHY?


Recommended Posts

OK so I want to OC.. But there's a problem

If I lower the ram divider - the system gets very unstable..

Sometimes it won't post, sometimes it will post but will not boot..

 

So I tried to loosen the timings - won't help.

 

Then I tried to change the memory voltage from 2.60 to 2.70 - Now it posts, boots, but its unstable on windows.

 

Tried to change voltage from 2.70 to 2.80 - sometimes posts.. and if it posts - it doesn't boot.

 

 

Please help me fix that

 

Thanks in advance

Share this post


Link to post
Share on other sites

Hello,

 

Trying to overclock with Kingston Value ram is going to be a struggle.

What settings are you using?

 

EG

GENIE BIOS Setting

>DRAM Configuration..................Press Enter = New Menu

FSB BUS Frequency....................200

LDT/FSB Frequency Ratio..............X 5.0

LDT BUS Transfer Width...............16 16

CPU/FSB Frequency Ratio..............AUTO

PCI eXpress Frequency................100Mhz

K8 Cool 'n' Quiet Support............Disable

Cool 'n' Quiet MAX FID...............AUTO

CPU VID StartUp Value................StartUp

 

CPU VID Control......................1.4v

CPU VID Special Control..............AUTO

LDT Voltage Control..................1.20 V

Chip Set Voltage Control.............1.50 V

DRAM Voltage Control.................2.70 V

 

Run MemTest86+.......................Enabled, disable later

GENIE BIOS Setting >DRAM Configuration

DRAM Frequency Set (MHZ).............200 (DRAM/FSB:1/01)

Command per clock (CPC)..............Enabled

Cas latency (tCL)....................?

RAS to CAS delay (tRCD)..............?

Min RAS active time (tRAS)...........?

Row precharge time (tRP).............?

Row cycle time (tRC).................AUTO

Row refresh cycle time(tRFC).........AUTO

Row to Row delay (tRRD)..............AUTO

Write recovery time (tWR)............AUTO

Write to read delay (tWTR)...........AUTO

Read to write delay (tRWT)...........AUTO

Refresh period (tREF)................AUTO

Write CAS latency (tWCL).............1

DRAM Bank Interleave.................Enabled

 

DQS Skew Control.....................AUTO

DQS Skew Value.......................0

DRAM Drive Strength..................Level 8

DRAM Data Drive Strength.............Level 3

Max Async Latency....................6ns

Dram Response........................AUTO/Normal

Read Preamble Time...................5ns

Idle Cycle Limit.....................AUTO

Dynamic Counter......................AUTO

R/W Queue Bypass.....................AUTO

Bypass Max...........................AUTO

32 Byte Granularity..................AUTO

 

Your power supply is also on the weak side.

Share this post


Link to post
Share on other sites

Yes overclocking Kingston Value ram can most of the time get you nowhere. But if you want to see what the max your ram can do is check out this and look at the ram overclocking section http://www.hardforum.com/showpost.php?p=10...689&postcount=2

that is one of the best AMD overclocking guides I have seen.

Share this post


Link to post
Share on other sites

There's nothing to oc'ing an AMD. Bump FSB, keep LDT/FSB ratio proper, and make sure you ram doesn't go out of spec. And if unstable, adjust voltages.

 

Tt PSU's from that era are VERY flakey. The only ones that are marginally good are the 750W+ Toughpowers.

Share this post


Link to post
Share on other sites

Please sign in to comment

You will be able to leave a comment after signing in



Sign In Now
 Share

×
×
  • Create New...