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5
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Title
Size
Document Number
Rev
Date:
Sheet
of
QUANTA
COMPUTER
JM7B
2A
Thursday, September 14, 2006
Change list
5
2
Title
Size
Document Number
Rev
Date:
Sheet
of
QUANTA
COMPUTER
JM7B
2A
Thursday, September 14, 2006
Change list
5
2
Title
Size
Document Number
Rev
Date:
Sheet
of
QUANTA
COMPUTER
JM7B
2A
Thursday, September 14, 2006
Change list
5
2
Item
Page
ECN Number
Date
Rev.
Issue Description
Solution Description
Model
JM7B
Item Id
Done.
Change L25 and L26 to BLM18BD601SN1D for Vista audio performance.
WI86348
20
2A
8/21/2006
39
WI86347
Recent audio performance tests show that the original 1.0uF has marginal
passing results. 2.2uF needed to ensure audio performance requirements
are met.
Change C751 and C768 to 2.2uF for Vista performance requirements.
21
2A
38
8/21/2006
Done.
Depop C309. This may not be needed in light of C253 and C320.
WI86342
2A
22
8/21/2006
38
Done.
Change codec package to QFN; U19 needs to change to QFN package.
STAC9205X5NBEB1XR.
2A
WI86335
8/21/2006
38
23
For MAXIM suggestion and follow MAX8786 spec, add PC215 and PC216.
V_CORE controller should add two caps at "CSN2" and "CSN3" pin.
2A
WI87472
8/23/2006
51
24
Change PL1 , PL2 and PL3 to "ETQP4LR45XFC".
Change v_core choke from "MPC1040LR45" to "ETQP4LR45XFC" since
Panasonic(ETQP4LR45XFC) cheaper than NEC-TOKIN(MPC1040LR45).
2A
WI87480
8/23/2006
51
25
Change L25,L26 from BLM18BD331SN1D to BLM18BD601SN1D.
39
8/25/2006
Change back VC08 design, rename SNIFFER_YELLOW to SNIFFER_YELLOW#,
SNIFFER_GREEN to SNIFFER_GREEN# and remove R479 and R480.
In order to leverage the M07 implementation, the sniffer LED circuit needs
to be modified. The MEC5025 pins are being changed from active high to
active low.
2A
WI87892
8/25/2006
31,36
26
Change to 1.5UH20%17A(SIQH126-1R5PF)
With a max current of 13A, and calculated ripple of 2.12A, the peak current
on PL8 will be 14.06A. The current rating for MPO73-2R2 is marginal at best.
Need to choose an inductor with a higher current rating.
2A
WI85389
8/25/2006
52
27
Change to 1.5UH 20%15A(SIL105RA-1R5-R)
For a maximum current rating of 12A, the peak inductor current for PL9 will
be 13.7A. The MPO104-1R5 part is rated for 20A. Finding an inductor with a
lower current rating could possibly lead to a physically smaller and cheaper
inductor.
2A
WI86712
8/25/2006
47
28
Leave pin 73 of MEC5025 as no connect .
Sch X01: Remove 0.9V_DDR_VTT_PWRGD circuit.
The 0.9V_DDR_VTT_PWRGD circuit is not currently being used, and can be
removed.
2A
WI87919
8/25/2006
31,47
29
Done.
Reduce Fets PQ26 and PQ27 into only one Fet. It will be more cheaper.
Change PQ27 from "SI4336DY" to "NTMFS4108N". Remove PQ26.
2A
WI88291
8/25/2006
53
30
To resolve this issue, please use the HDDC_EN and MODC_EN circuits that are
attached below. These new circuits resemble closely our other load switch
circuits, but require an additional FET and changes the sense of the HDDC_EN
and MODC_EN signals to active high. Please note the use of +5V_ALW2 on these
circuits. The +5V_ALW2 voltage comes directly from the LDO output on the
3V/5V switcher in your M08 design.
Modify HDDC_EN and MODC_EN Circuits to Resolve Glitch Issue.
unintentionally for a brief moment.With the current Dawson design, it has
been shown that the +15V_ALW rail comes up before the +3V_ALW rail on
the original HDDC_EN and MODC_EN circuits. This can cause a
momentary glitch at the gate of the power FET, which may cause the FET
to turn on unintentionally for a brief moment.
2A
WI88236
8/26/2006
26,32
31
Remove R259,R258,C271,C270,C237,C238,C252,R240,R239,Y1,C250,C247,
L32,C259,C269,C275. and related stubs for Discrete
SCH X01 - Change ECE5018 to ECE5028. For X01 pilot run, USIO1 needs to
change to ECE5028.
2A
WI88528
WI88427
8/26/2006
32
32
Change C428 from 27P to 22P for Y2.
Change C772,C781 from 15P to 12P for W2.
Tune crystal frequency tolerance for 25MHz in LAN and 32.768KHz in ICH.
2A
WI88592
8/28/2006
11,40
33
Done.
Need to connect thermatrip_vga# to GPIO8 instead of GPIO9.G8x has a new
GPIO for our thermal trip output from our internal thermal sensor compared
with G7x. So, please connect thermatrip_vga# to GPIO8 instead of GPIO9. It's
open collector so it needs a pullup.
2A
WI88358
8/28/2006
19
34
Connect pin5,6 of U34 from I2CA bus to I2CH bus and remove RP16.
The HDCP rom needs to be connected to the I2CH_SCL(C7) and
I2CH_SDA(B7) and the pullups RP16 need to be removed. Currently these
hdcp pins are connected to I2CA.
2A
WI88367
8/28/2006
19,20
35
Due to the power on defaults of the MEC5025, the pull-downs on the KSI
lines of the MEC5025 need to be stronger, to avoid pulses from powering on
certain power rails. Please do the following:
1. Change pull-down on SUS_ON to 2.7k
2. Change pull-down on RUN_ON to 2.7k
3. Add 2.7k pull-down to AUX_ON
Change R521,R522 to 2.7K; add pull-up R532 for AUX_ON.
2A
WI88584
8/28/2006
31
36
Add U37 for ST-Micro M45PE20.
U20 (UMA) & U24 (DIS) footprint should be changed to accommodate both
wide-body Atmel AT45BCM021B & narrow-body ST-Micro M45PE20.
2A
WI88588
8/28/2006
41
37
2A
Done.
The 0.1 uF caps can be removed on WLAN (C748) and WWAN (C306). Pin
24 for WWAN should be connected to +3.3V_Run.
29
WI88810
8/29/2006
38
