Overclock.net › Forums › AMD › AMD CPUs › 1700+ @ 15x will not post above 112Mhz
New Posts  All Forums:Forum Nav:

1700+ @ 15x will not post above 112Mhz

post #1 of 6
Thread Starter 
I have a Athlon XP 1700+ in a K7S5A Mb right now with water cooling hooked up to it. I used a pin mod to get the multi up to 15x from 11x, but for some reason i cant get the fsb over 112 Mhz. I have a Pot. hooked up to my voltage regulator right now so ive also tryed all voltages from 1.5x to 2.2v and nothing seems to work. When i had the multi at 11x i was able to boot stable at 150Mhz which is about my limit because of my PC133 ram. Any ideas or fixes for this problem?
post #2 of 6
It might be the motherboard can't handle the cpu with the new multi.
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
FX-57 lapped DFI Lanparty NF4 SLI DR 2x7800GT OC 2x512 PNY DDR600 
Hard DriveOSMonitorKeyboard
4x36gb Raptors raid-0 2000 pro HP P1100 20 inch Micro wireless 
PowerCaseMouse
Antic 550 True Control TT Armor Ge optical 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
FX-57 lapped DFI Lanparty NF4 SLI DR 2x7800GT OC 2x512 PNY DDR600 
Hard DriveOSMonitorKeyboard
4x36gb Raptors raid-0 2000 pro HP P1100 20 inch Micro wireless 
PowerCaseMouse
Antic 550 True Control TT Armor Ge optical 
  hide details  
Reply
post #3 of 6
Have you checked for any relative BIOS up-dates
If the RAM is limiting it so be it, I don't recall the option to under clock the PC133 era.
Work the multiplyer.
Some things to consider.
What are your available voltages?
What kind of PS?
Did you disable any nonfunctioning MB periphials like COM and Serial Port(s)?
The PCI/AGP can be pushed just so much if the chip-set can not lock their frequencies.
    
CPUMotherboardGraphicsRAM
X4 965 ASUS M4A79 Deluxe 9800GTx2 2x2G OCZ Reapers 
Hard DriveOptical DriveOSMonitor
500G WD Black LiteOn CD/DVD R/W Win7 64 22'' ws Acer AL2223W 
KeyboardPowerMouse
MS KU462 Natural SS DA750 MS 5 button 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
X4 965 ASUS M4A79 Deluxe 9800GTx2 2x2G OCZ Reapers 
Hard DriveOptical DriveOSMonitor
500G WD Black LiteOn CD/DVD R/W Win7 64 22'' ws Acer AL2223W 
KeyboardPowerMouse
MS KU462 Natural SS DA750 MS 5 button 
  hide details  
Reply
post #4 of 6
Thread Starter 
Hmm, the 100 / 103 / 107 / 110 fsb speeds work fine, and i can run them at 1.5v with no problem. I seemed to hit the same limit of 1650Mhz when i had it running at 11x * 150Mhz but i was guessing it was due to my RAM. And for some reason when i use setfsb it only gives me the options of 90/100/103/107/110 so im guessing it might have something to do with the mb? With CPUCool I have the options to OC all the way to 200Mhz but windows just freezes no matter the voltage I send to the VCore. Im running a Modified bios right now, and I dont think power is an issue cause i just installed a new 450 watt PSU. Hmm and i dont know if this has anything to do with it but my MB cant seem to find my Slave IDE's.
post #5 of 6
Quote:
Originally Posted by aalfabob
I have a Athlon XP 1700+ in a K7S5A Mb right now with water cooling hooked up to it. I used a pin mod to get the multi up to 15x from 11x, but for some reason i cant get the fsb over 112 Mhz. I have a Pot. hooked up to my voltage regulator right now so ive also tryed all voltages from 1.5x to 2.2v and nothing seems to work. When i had the multi at 11x i was able to boot stable at 150Mhz which is about my limit because of my PC133 ram. Any ideas or fixes for this problem?
Hey mate, I had this mobo for a year or so, and you're absolutely right. It is IMPOSSIBLE to put the FSB over 112MHz. A fsb of 117 (for ex) gives you a PCI freq of 29MHz and an AGP freq of 58 MHz as it passes on a divider FSB/4 for the PCI bus and FSB/2 for the AGP. It uses these dividers for any fsb freq between 117 and 150. When using a FSB between 100 and 112 it uses the dividers FSB/3 and FSB/1.5 respectively. I suppose you are doing the OC either with speedfan or with a modded bios (that I found on www.ocinside.de) as in the ECS BIOSes I had there was no way of changing the FSB, except directly to 133MHz. This is also the case when going over 150MHz, it changes the divider for the PCI/AGP frequencies wich makes all the mobo unstable, just as it is the case when going over 112MHz.
There is no way to avoid that, I would be very surprise if someone has succeded to modd a bios so that it fixes this issue. Try with another mobo if you eally wand more OC, for a 20 bucks board 150FSB is quite OK

EDIT* Haven't seen y'r second post, but I suppose this answears y'r questions. Cheers!
Centurion
(14 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II 940 @3.3GHz 1.25V Gigabyte 790X-DS4 XFX 5850 8GB OCZ DDR2-800 
Hard DriveCoolingOSMonitor
Corsair Force 3 TRUE Win 7 Pro x64 ACER 23" TN  
PowerCase
400W Silverstone Strider Antec P182 
  hide details  
Reply
Centurion
(14 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II 940 @3.3GHz 1.25V Gigabyte 790X-DS4 XFX 5850 8GB OCZ DDR2-800 
Hard DriveCoolingOSMonitor
Corsair Force 3 TRUE Win 7 Pro x64 ACER 23" TN  
PowerCase
400W Silverstone Strider Antec P182 
  hide details  
Reply
post #6 of 6
You put 2.2vcore through that chip?!
Main Gaming Rig
(14 items)
 
  
CPUMotherboardGraphicsRAM
2500K 4.8ghz Asus P8P67 Deluxe Sapphire 7970 1200/1600 8GB GSKILL SNIPER 
Hard DriveOptical DriveOSMonitor
128GB OCZ Vertex 4 LG 24X SATA Windows 7 Pro x64 Dell 22/24/22 LCDs 
KeyboardPowerCaseMouse
Logitech G110 Toughpower 1000watt 108A Corsair 800D Logitech G700 
Mouse PadAudio
SteelSeries QCK+ XFI XtremeMusic 
  hide details  
Reply
Main Gaming Rig
(14 items)
 
  
CPUMotherboardGraphicsRAM
2500K 4.8ghz Asus P8P67 Deluxe Sapphire 7970 1200/1600 8GB GSKILL SNIPER 
Hard DriveOptical DriveOSMonitor
128GB OCZ Vertex 4 LG 24X SATA Windows 7 Pro x64 Dell 22/24/22 LCDs 
KeyboardPowerCaseMouse
Logitech G110 Toughpower 1000watt 108A Corsair 800D Logitech G700 
Mouse PadAudio
SteelSeries QCK+ XFI XtremeMusic 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: AMD CPUs
Overclock.net › Forums › AMD › AMD CPUs › 1700+ @ 15x will not post above 112Mhz