cisco 7200 simulation, dynamips,Dynagen,GNS3,PEMU,

I am planning to sit for the CCIE R&S exam in about 12 months from now! So I downloaded a .net topology for a lab that contains 14 routers…Past few months I have managed to run CCIP Labs that had up to 10 Routers without any problems! Now, when I load the CCIE topology and start the machines two things can happen. 1) It loads the topology but after 1 min. Server is shutting down or 2) Freezing while starting the machines!

My system is:

1. WinXP SP2
2. P4 2.8Ghz CPU
3. 2.6GB RAM

The .net file is:

autostart = False
ghostios = True
sparsemem = True

[localhost:7200]

workingdir = E:\Dynamips\sample_labs\Internetwork_Expert\Working

[[3640]]

image = E:\Dynamips\images\c3640-jk9s-mz.124-8.bin
ram = 128

[[Router R1]]
model = 3640
console = 2001
slot0 = NM-1FE-TX
slot1 = NM-4T
F0/0 = SW1 F1/1
S1/0 = FRSW 1
#cnfg = E:\Dynamips\sample_labs\Internetwork_Expert\InitialConfigs\R1.initial.config.txt
idlepc = 0×604248b0

[[Router R2]]
model = 3640
console = 2002
slot0 = NM-1FE-TX
slot1 = NM-4T
F0/0 = SW2 F1/2
S1/0 = FRSW 2
#cnfg = E:\Dynamips\sample_labs\Internetwork_Expert\InitialConfigs\R2.initial.config.txt
idlepc = 0×6054c4c0

[[Router R3]]
model = 3640
console = 2003
slot0 = NM-4E
slot1 = NM-4T
S1/0 = FRSW 3
S1/1 = FRSW 13
S1/2 = R1 S1/1
S1/3 = R2 S1/1
E0/0 = SW1 F1/3
E0/1 = SW3 F1/3
#cnfg = E:\Dynamips\sample_labs\Internetwork_Expert\InitialConfigs\R3.initial.config.txt
idlepc = 0×6051489c

[[Router R4]]
model = 3640
console = 2004
slot0 = NM-4E
slot1 = NM-4T
E0/0 = SW2 F1/4
E0/1 = SW4 F1/4
S1/0 = FRSW 4
S1/1 = R5 S1/1
#cnfg = E:\Dynamips\sample_labs\Internetwork_Expert\InitialConfigs\R4.initial.config.txt
idlepc = 0×6054ceac

[[Router R5]]
model = 3640
console = 2005
slot0 = NM-4E
slot1 = NM-4T
E0/0 = SW1 F1/5
E0/1 = SW3 F1/5
S1/0 = FRSW 5
#cnfg = E:\Dynamips\sample_labs\Internetwork_Expert\InitialConfigs\R5.initial.config.txt
idlepc = 0×6054ceac

[[Router R6]]
model = 3640
console = 2006
slot0 = NM-4E
slot1 = NM-4T
E0/0 = SW2 F1/6
E0/1 = SW4 F1/6
S1/0 = FRSW 6
#cnfg = E:\Dynamips\sample_labs\Internetwork_Expert\InitialConfigs\R6.initial.config.txt
idlepc = 0×604248b0

[[Router SW1]]
model = 3640
console = 2007
slot1 = NM-16ESW
F1/7 = SW2 F1/7
F1/8 = SW2 F1/8
F1/9 = SW2 F1/9
F1/10 = SW3 F1/7
F1/11 = SW3 F1/8
F1/12 = SW3 F1/9
F1/13 = SW4 F1/7
F1/14 = SW4 F1/8
F1/15 = SW4 F1/9
#cnfg = E:\Dynamips\sample_labs\Internetwork_Expert\InitialConfigs\SW1.initial.config.txt
idlepc = 0×6054d6c8

[localhost:7201]

workingdir = E:\Dynamips\sample_labs\Internetwork_Expert\Working
udp = 11000

[[3640]]

image = E:\Dynamips\images\c3640-jk9s-mz.124-8.bin
ram = 128

[[Router SW2]]
model = 3640
console = 2008
slot1 = NM-16ESW
F1/10 = SW3 F1/10
F1/11 = SW3 F1/11
F1/12 = SW3 F1/12
F1/13 = SW4 F1/10
F1/14 = SW4 F1/11
F1/15 = SW4 F1/12
#cnfg = E:\Dynamips\sample_labs\Internetwork_Expert\InitialConfigs\SW2.initial.config.txt
idlepc = 0×604248b0

[[Router SW3]]
model = 3640
console = 2009
slot1 = NM-16ESW
F1/13 = SW4 F1/13
F1/14 = SW4 F1/14
F1/15 = SW4 F1/15
#cnfg = E:\Dynamips\sample_labs\Internetwork_Expert\InitialConfigs\SW3.initial.config.txt
idlepc = 0×6051489c

[[Router SW4]]
model = 3640
console = 2010
slot1 = NM-16ESW
#cnfg = E:\Dynamips\sample_labs\Internetwork_Expert\InitialConfigs\SW4.initial.config.txt
idlepc = 0×6054d6a0

[[Router BB1]]
model = 3640
console = 2011
slot1 = NM-4T
S1/0 = BB3 S1/0
S1/1 = FRSW 21
#cnfg = E:\Dynamips\sample_labs\Internetwork_Expert\InitialConfigs\BB1.initial.config.txt
idlepc = 0×6054ce6c

[[Router BB2]]
model = 3640
console = 2012
slot0 = NM-4E
E0/0 = SW2 F1/0
#cnfg = E:\Dynamips\sample_labs\Internetwork_Expert\InitialConfigs\BB2.initial.config.txt
idlepc = 0×60517f40

[[Router BB3]]
model = 3640
console = 2013
slot0 = NM-4E
slot1 = NM-4T
E0/0 = SW3 F1/0
#cnfg = E:\Dynamips\sample_labs\Internetwork_Expert\InitialConfigs\BB3.initial.config.txt
idlepc = 0×6054ce6c

[[Router TermServ]]
model = 3640
console = 2000
idlepc = 0×6054c4c0

[[FRSW FRSW]]

# R1 to FRSW
1:102 = 2:201
1:103 = 3:301
1:113 = 13:311
1:104 = 4:401
1:105 = 5:501

# R2 to FRSW
2:203 = 3:302
2:213 = 13:312
2:204 = 4:402
2:205 = 5:502

# R3 to FRSW
3:304 = 4:403
3:305 = 5:503
13:314 = 4:413
13:315 = 5:513

# R4 to FRSW
4:405 = 5:504

# R6 to FRSW
6:51 = 21:51
6:100 = 21:100
6:101 = 21:101
6:201 = 21:201
6:301 = 21:301
6:401 = 21:401

Has anyone experienced same problem???