Hello to everyone.
In short : How can this system get overclocked to 2,83GHz or beyond (preferably under linux) ?
In long : My main (and only) system is this Dell e1505 with locked bios which hopefully i will keep for at least 2 years.
I bought it in 2007 and since i never played games or did anything too resourceful it was adequate until the need for virtual machines arose (virtual box).
I maximized RAM to 3,2GB (4GB installed) and found several threads regarding the overclockable Intel Core 2 Duo T7600G.
Searching around i thought i found a bios mod that would unlock the overclocking feature, only to realize it was just for SLIC2.1.
Unfortunately i had already ordered the T7600G so am now stack with it on it's standard range of values (1Gz - 2,33Ghz).
There was someone in another forum that searched for a lost bios mod that took the overclocking ability part from an Inspiron m1710 bios and added it to the e1505 6400 bios for the T7600G.
I searched everywhere i could, no such bios mod was found.
The motherboards PLL is not supported by any overclocking software.
Under Windows, only minor success i had was in SetFSB choosing the Dell XPS M1730 option (CY28547 FSLx) which managed to read FSB.
I moved the sliders slightly without knowing where exactly to settle them but CPU-z showed no change.
Under Windows, ClockGen wouldn't read FSB with any PLL selection.
Under Windows, using crystalcpuid and multiplier management to raise the FBS from 667 to 1111 (according to someone's directions) i only managed to lock my system
Link :
i overclocked dell e1505 duo core fbs to 1111 - Guru3D.com Forums
Under linux wrmsr and c2ctl work as long as the values in the standard range are used (1Gz - 2,33Ghz).
Under linux SMBus seams enabled according to lspci.
Finally there is a thread about PIN mod :
Method 2: FSLx mod to hardwire PLL for higher FSB
where the author describes how to cut and ground the FSLB/TEST_MODE pin using an example of 9LPR501S chip (pin 57).
My CY28447LFXC (allegedly) has FSB/TEST_MODE (pin 45) but i don't know if this is applicable.
Link :
http://forum.notebookreview.com/har...nmod-overclocking-methods-examples-print.html
Under Windows, the Intel Processor Identification Utility verifies the T7600G properties.
I have noticed there is a member of this forum, K-TRON, with identical system and CPU, who has managed to overclock it.
If anyone could point me to the right direction i would much appreciate it.
Thank you in advance.
Regards
System Info
General
| System |
Dell Inspiron E1505 |
| Mother Board |
YD612 |
| BIOS |
MM016 |
| BIOS Revision |
A17 |
| PLL (Clock Generator) |
cy28447lfxc (allegedly) |
| Northbridge |
Intel i945PM rev. 03 |
| Southbridge |
Intel 82801GHM (ICH7-M/U) rev. A1 |
| Graphic Interface |
PCI-Express |
| Memory Type |
DDR2 |
| Memory Size |
4 GBytes (3,2GB available) |
| Channels |
Dual |
| Memory Frequency |
332.9 MHz (1:2) |
Processor
| Name |
Intel Mobile Core 2 Duo T7600G |
| Codename |
Merom |
| Specification |
Intel(R) Core(TM)2 CPU T7600 @ 2.33GHz |
| Package (platform ID) |
Socket 479 mPGA (0x5) |
| Multiplier x Bus Speed |
6.0 x 166.4 MHz |
| Rated Bus speed |
665.8 MHz |
| FID/VID Control |
yes |
| FID range |
6.0x - 14.0x |
| Max VID |
1.213 V |
Display Adapter
| Name |
NVIDIA GeForce Go 7300 |
| Revision |
A3 |
| Codename |
G72 |
| Technology |
90 nm |
| Memory size |
128 MB |
Linux + lspci
Code:
# lspci
00:00.0 Host bridge: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express Memory Controller Hub (rev 03)
00:01.0 PCI bridge: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express PCI Express Root Port (rev 03)
00:1b.0 Audio device: Intel Corporation N10/ICH 7 Family High Definition Audio Controller (rev 01)
00:1c.0 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 1 (rev 01)
00:1c.3 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 4 (rev 01)
00:1d.0 USB controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #1 (rev 01)
00:1d.1 USB controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #2 (rev 01)
00:1d.2 USB controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #3 (rev 01)
00:1d.3 USB controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #4 (rev 01)
00:1d.7 USB controller: Intel Corporation N10/ICH 7 Family USB2 EHCI Controller (rev 01)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e1)
00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge (rev 01)
00:1f.2 IDE interface: Intel Corporation 82801GBM/GHM (ICH7-M Family) SATA Controller [IDE mode] (rev 01)
[COLOR="#FF0000"]00:1f.3 SMBus: Intel Corporation N10/ICH 7 Family SMBus Controller (rev 01)[/COLOR]
01:00.0 VGA compatible controller: NVIDIA Corporation G72M [Quadro NVS 110M/GeForce Go 7300] (rev a1)
03:00.0 Ethernet controller: Broadcom Corporation BCM4401-B0 100Base-TX (rev 02)
03:01.0 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller
03:01.1 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 19)
03:01.2 System peripheral: Ricoh Co Ltd R5C843 MMC Host Controller (rev 01)
03:01.3 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter (rev 0a)
03:01.4 System peripheral: Ricoh Co Ltd xD-Picture Card Controller (rev 05)
0b:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection (rev 02)
Linux + i2c
Code:
# i2cdetect -y 0
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- 08 -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: 50 -- 52 -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- 69 -- -- -- -- -- --
70: -- -- -- -- -- -- -- --
Code:
# i2cdump -y 0 0x69 s 0
0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef
00: 79 ef ff 00 01 00 3b 18 06 0e f0 00 5a 7f 80 80 y?..?.;????.Z???
10: 10 08 04 01 ????
Code:
# i2cdump -y 0 0x69 s 0xd
0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef
00: 7f 80 80 10 08 04 01 bc 90 04 04 04 04 04 89 8c ????????????????
10: 00 00 03 79 ..?y
SetFSB (only FSB-readable selection)
| Dell XPS M1730 |
CY28547 FSLx |
| Normal Speed |
200Mhz PLL |
| OC Speed |
266Mhz PLL |
Linux + msr-tools + T7600G
06 13 0E 28 86 00 0E 28
== -- -- -- -- -- -- -- this is the minimum FID
-- == -- -- -- -- -- -- this is the minimum VID
-- -- == -- -- -- -- -- this is the maximum FID
-- -- -- == -- -- -- -- this is the maximum VID
-- -- -- -- == -- -- -- unsure
-- -- -- -- -- == -- -- unsure
-- -- -- -- -- -- == -- this is the current FID
-- -- -- -- -- -- -- == this is the current VID
Following code outputs following 2 tables
Code:
# MSRs="198 199 1A0"
# CPUs=$(sed -rn 's@^processor[\t]: ([0-9]+)$@\1@p' /proc/cpuinfo)
# for MSR in $MSRs;do
for CPU in $CPUs;do
echo -n "CPU${CPU} ${MSR}: "
rdmsr -0 -X -p ${CPU} 0x${MSR}
done
done
Speed Step = 1
FREQ = 1.00 Ghz
Governor = Userspace
Code:
CPU0 198: 06130E2886000613
CPU1 198: 06130E2886000613
CPU0 199: 0000000000000613
CPU1 199: 0000000000000613
CPU0 1A0: 0000004264952489
CPU1 1A0: 0000004264952489
Speed Step = 1
FREQ = 2.33 Ghz
Governor = Userspace
Code:
CPU0 198: 06130E2886000E28
CPU1 198: 06130E2886000E28
CPU0 199: 0000000000000E28
CPU1 199: 0000000000000E28
CPU0 1A0: 0000004264952489
CPU1 1A0: 0000004264952489
CY28447LFXC Data Sheet
Link :
CY28447LFXC pdf, CY28447LFXC description, CY28447LFXC datasheets, CY28447LFXC view ::: ALLDATASHEET :::
Problems? See this thread at archive.org.