The Upgrade: From HP DL380 G7 to Dell R730xd
In my previous homelab post, I talked about running my infrastructure on an HP Proliant DL380 G7 with dual Xeon X5650 processors. That server served me well, but it was time for an upgrade.
Why Upgrade?
The DL380 G7 was solid, but showing its age:
- Power hungry: Westmere-EP chips from 2010 aren’t efficient
- Limited single-thread performance: Newer workloads need faster cores
- DDR3 memory: Slower and harder to find in large capacities
- Running AD labs: Needed more headroom for hosting GOAD environments
The main driver? I’m now hosting Budget Hacking Labs - affordable AD lab environments for red team practice. The old server could handle it, but not with the headroom I wanted for multiple concurrent users.
The New Hardware
Dell R730xd (2U Rack Server)
| Component | Specification |
|---|---|
| CPU | Intel Xeon E5-2680 v4 |
| Cores/Threads | 14 Cores / 28 Threads |
| Base Clock | 2.4 GHz |
| Turbo Clock | 3.3 GHz |
| RAM | 128 GB DDR4 ECC |
| Form Factor | 2U Rack |
The R730xd is the extended storage variant - it supports up to 26 x 2.5” drives in the front bays plus 2 in the rear. Overkill for most homelabs, but perfect for running multiple lab environments with dedicated storage.
CPU Comparison: X5650 vs E5-2680 v4
| Spec | Xeon X5650 (Old) | Xeon E5-2680 v4 (New) |
|---|---|---|
| Architecture | Westmere-EP (2010) | Broadwell-EP (2016) |
| Cores | 6 (x2 = 12 total) | 14 |
| Threads | 12 (x2 = 24 total) | 28 |
| Base Clock | 2.67 GHz | 2.4 GHz |
| Turbo | 3.06 GHz | 3.3 GHz |
| TDP | 95W x2 = 190W | 120W |
| Memory | DDR3-1333 | DDR4-2400 |
| Process | 32nm | 14nm |
Key wins:
- More cores/threads from a single CPU (28 vs 24)
- Much better power efficiency (14nm vs 32nm)
- DDR4 memory - faster and more available
- Better IPC (instructions per clock) - Broadwell is significantly faster clock-for-clock
Storage Configuration
Running a RAID setup with mixed SSD and HDD:
| Drive Type | Purpose |
|---|---|
| SSDs | VM storage - fast disk I/O for running labs |
| HDDs | ISO storage, backups, cold data |
| RAID | Hardware RAID via PERC controller |
The R730xd’s PERC H730 Mini gives me hardware RAID with battery backup. No more worrying about data loss from sudden power issues.
Cost Breakdown
Total investment: ~$800+
Not cheap, but considering what you get:
- Enterprise-grade hardware with iDRAC remote management
- DDR4 platform with upgrade path to 768GB+ RAM
- 14nm efficiency vs 32nm power hog
- Enough storage bays to never worry about space
Compare that to cloud hosting costs for running multiple Windows VMs 24/7 - this pays for itself quickly.
Still Running Proxmox VE
No reason to change what works. Proxmox VE handles the virtualization:
- KVM for full Windows/Linux VMs
- LXC containers for lightweight services
- Web UI for management
- Built-in backup to my NAS
The migration from the old server was straightforward - export VMs, import on new host, update network configs.
Current Lab Setup
With the upgraded hardware, I’m now running:
For Budget Hacking Labs:
- GOAD Mini environments (2-3 VMs each)
- Shared attack boxes (Kali LXC containers)
- WireGuard VPN endpoint
- Lab management services
Personal homelab:
- Domain controller for home network
- Docker host for self-hosted services
- Dev/test VMs
- Network monitoring
The E5-2680 v4 handles all of this with room to spare. CPU utilization rarely goes above 30% under normal lab load.
Power Consumption
One concern with homelab servers is electricity cost. Quick comparison:
| Server | Idle Power | Load Power |
|---|---|---|
| HP DL380 G7 (dual X5650) | ~180W | ~350W |
| Dell R730xd (E5-2680 v4) | ~90W | ~200W |
Roughly half the power consumption for more compute. The 14nm process and DDR4 make a huge difference.
What’s Next?
The R730xd has room to grow:
- RAM upgrade: Can go to 256GB or more when needed
- Second CPU: The R730xd supports dual processors
- More storage: Plenty of empty drive bays
- GPU passthrough: For future AI/ML experiments
For now, 128GB and a single 14-core CPU is more than enough for my needs.
TL;DR
| Old Setup | New Setup | |
|---|---|---|
| Server | HP DL380 G7 | Dell R730xd |
| CPU | 2x Xeon X5650 | 1x Xeon E5-2680 v4 |
| Cores/Threads | 12C/24T | 14C/28T |
| RAM | 128GB DDR3 | 128GB DDR4 |
| Power | ~180-350W | ~90-200W |
| Cost | ~$570 | ~$800+ |
The upgrade was worth it. More efficient, more capable, and ready to scale the Budget Hacking Labs service.
In the next post, I’ll cover the network architecture and how I isolate lab environments from my home network.
