Bonjour,
après avoir passé un bon moment hier dans le BIOS (les logiciels de modif FSB sous Win faisant planter (BSOD) systématiquement le PC, j'ai décidé de plonger dans le cambouis.
Premier réglage FSB manuel cadencé à 286MHz (266 initial + 20MHz pour voir) fonctionnel après désactivation de tous les 'Advanced settings' :
imit CPUID Max. to 3 [Disabled]
CPU Enhanced Halt (C1E) [Disabled]
C2/C2E State Support [Disabled]
CPU Thermal Monitor 2(TM2) [Disabled]
CPU EIST Function [Disabled]
Virtualization Technology [Disabled]
J'ai ensuite tenté de monter le FSB à 333MHz, mais ça n'a pas fonctionner (reboot direct au niveau du BIOS), normal, il faut à cette cadence tenir compte des réglages de la RAM voire des voltages...
J'ai fait plusieurs tentatives, certaines refusant de démarrer (à cause de la RAM je présume), d'autres instables suite à un test OCCT.
J'ai recherché sur le Net des réglages possibles relatifs à ma carte mère (GA-EP45) et à la ram (2 barrettes G Skill F2-8500CL5-4GBPK), et voici ce que j'ai trouvé :
Citation :
Try this for 400 FSB 3.2Ghz, not sure what your intended speed is?
CPU Voltage is of course up to you >>>
MB Intelligent Tweaker(M.I.T.)
Robust Graphics Booster ...............: Auto or Fast
CPU Clock Ratio ..........................: 8
Fine CPU Clock Ratio.....................:.0
CPU Frequency ...........................: 3.208
Clock Chip Control
Standard Clock Control
CPU Host Clock Control..................: [Enabled]
CPU Host Frequency (Mhz) ............:401Mhz
PCI Express Frequency (Mhz) .........:Set to 100 << May also try 101-105 as a last resort
C.I.A.2 .................................:[Disabled]
Advanced Clock Control [Press Enter]
CPU Clock Drive...........................: <<< 800
PCI Express Clock Drive.................: <<< 900
CPU Clock Skew (ps)....................: <<<
MCH Clock Skew (ps)...................: <<<
DRAM Performance Control
Performance Enhance...................: [STANDARD]
Extreme Memory Profile (X.M.P.).....: Disabled
(G)MCH Frequency Latch...............: [Auto]
System Memory Multiplier ..............: 2.50A for 100Mhz or 2.66C for 1066 (Best choice likely)
Memory Frequency (Mhz) ..............: See above
DRAM Timing Selectable ................: [Manual]
Standard Timing Control
CAS Latency Time........................5
tRCD .........................................5
tRP'...........................................5
tRAS..........................................15/18
Advanced Timing Control
tRRD...........................................3-4
tWTR..........................................3-6
tWR............................................4-6
tRFC...........................................52-64
tRTP...........................................3-5
Command Rate (CMD) ....................:2
Driving Strength Profiles
Driving Strength ............................1066
Channel A
Static tRead Value.........................:6/7-10 333/B MCH - 8/9-12 400/D MCH (Lesser A/C multi's you can use 6-10 as well)
tRD Phase0 Adjustment...................:<<< Leave for all below as well
tRD Phase1 Adjustment...................:Auto
tRD Phase2 Adjustment .................:Auto
tRD Phase3 Adjustment..................:Auto
Trd2rd(Different Rank)....................:Auto
Twr2wr(Different Rank)...................:Auto
Twr2rd(Different Rank)...................:Auto
Trd2wr(Same/Diff Rank)..................:Auto
Dimm1 Clock Skew Control...............:Auto ps
Dimm2 Clock Skew Control...............:Auto ps
Channel B
Static tRead Value.........................:6/7-10 333/B MCH - 8/9-12 400/D MCH (Lesser A/C multi's you can use 6-10 as well)
tRD Phase0 Adjustment...................:<<< Leave for all below as well
tRD Phase1 Adjustment...................:Auto
tRD Phase2 Adjustment .................:Auto
tRD Phase3 Adjustment..................:Auto
Trd2rd(Different Rank)....................:Auto
Twr2wr(Different Rank)...................:Auto
Twr2rd(Different Rank)...................:Auto
Trd2wr(Same/Diff Rank)..................:Auto
Dimm1 Clock Skew Control...............:Auto ps
Dimm2 Clock Skew Control...............:Auto ps
Motherboard Voltage Control
Voltage Type.………... Manual
CPU
CPU Vcore….……….........................:1.325-1.35 Actual. Do keep in mind, what you set here is not what you get in windows. Could be up to .8 or so less. So check to see at a lower overclock what you are getting actual with CPU-z. I see a few of your CPU's will do 3.6 with 1.35-1.37 actual. You may have to set 1.4x in the BIOS to get 1.3x in windows
CPU Termination…..... 1.200V*.......: <<< 1.2-1.38
CPU PLL…………………....1.500V*.......: << Please set to stock, Auto overvolts this way to much. Or set 1.5-1.6
CPU Referen.…………....0.755V*.......: <<< .64% Of Vtt (Termination above) Auto Will set this correctly
CPU Reference2………,,0.800V*.......:<<< .67% Of Vtt (Termination above) Auto Will set this correctly
MCH/ICH
MCH Core…………….....1.100V...........: << 1.2-1.26 << Needed for 2x2GB
MCH Reference….…….0.800V...........; <<< Leave
MCH/DRAM Ref.…......0.900V...........: <<< Leave
ICH I/O……………….....1.550V............: <<< 1.5-1.6
ICH Core…………...……1.100V............: <<< 1.1-1.2
DRAM
DRAM Voltage ……....1.800V............: 2.0-2.1 << Check your ram sticker, you didnt link me your ram but I am sure it should not be 1.8V as you are using now
DRAM Termination .…0.900V............: <<< Leave
Channel A Reference 0.900V............: <<< Leave
Channel B Reference 0.900V............: <<< Leave
Advanced Settings
Limit CPUID Max. to 3.....................: [Disabled]
No-Execute Memory Protect............: [Enabled]
CPU Enhanced Halt (C1E)................: [Disabled]
C2/C2E State Support....................: [Disabled]
x C4/C4E State Support..................: [Disabled]
CPU Thermal Monitor 2(TM2) ...........: [Enabled]
CPU EIST Function.........................: [Disabled]
Virtualization Technology................: [Disabled] Enabled if you use Vmware/Virtual PC
Integrated Peripherals
Legacy USB Storage Detect ..............[Disabled] *Note* Must be enabled to flash from USB
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Alors ces réglages sont pour la config suivante :
CM : GA-EP45-DS3L
RAM : G.SKill F2-8500CL5-2GBPK (2 x 2Go)
CPU : E4500
Mais j'ai la même RAM, le même modèle (ou presque) de carte mère et un proc un peu plus puissant. Je pense tenter ces réglages (notamment pousser le voltage de la RAM à 2.0V et monter le voltage MCH et CPU à +0.15V.
La config de la mémoire semble vraiment difficile, entre le coefficient et le Straps, je m'y perd, surtout si on tient compte du Quad Pumping pour le calcul de fréquence...
Je fais des essais ce soir et vous tient au courant.
Message édité par PsYcKoZ le 10-07-2009 à 14:24:31